Meng Wang | 43bbb87 | 2018-12-10 12:32:05 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-only |
Meng Wang | 61af684 | 2018-09-10 17:47:55 +0800 | [diff] [blame] | 2 | /* |
Vatsal Bucha | 27e8e9b | 2020-12-30 19:05:37 +0530 | [diff] [blame^] | 3 | * Copyright (c) 2015-2021, The Linux Foundation. All rights reserved. |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 4 | */ |
| 5 | |
| 6 | #include <linux/irq.h> |
| 7 | #include <linux/kernel.h> |
| 8 | #include <linux/init.h> |
| 9 | #include <linux/slab.h> |
| 10 | #include <linux/io.h> |
| 11 | #include <linux/interrupt.h> |
| 12 | #include <linux/platform_device.h> |
| 13 | #include <linux/delay.h> |
| 14 | #include <linux/kthread.h> |
Ramprasad Katkam | cab8d72 | 2018-09-28 15:54:06 +0530 | [diff] [blame] | 15 | #include <linux/bitops.h> |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 16 | #include <linux/clk.h> |
Laxminath Kasam | a60239e | 2019-01-10 14:43:03 +0530 | [diff] [blame] | 17 | #include <linux/gpio.h> |
| 18 | #include <linux/of_gpio.h> |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 19 | #include <linux/pm_runtime.h> |
| 20 | #include <linux/of.h> |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 21 | #include <soc/soundwire.h> |
Sudheer Papothi | 3d1596e | 2018-10-27 06:19:18 +0530 | [diff] [blame] | 22 | #include <soc/swr-common.h> |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 23 | #include <linux/regmap.h> |
Ramprasad Katkam | 68765ab | 2018-08-30 11:46:32 +0530 | [diff] [blame] | 24 | #include <dsp/msm-audio-event-notify.h> |
Aditya Bavanari | bb981b7 | 2020-03-19 18:30:10 +0530 | [diff] [blame] | 25 | #include <dsp/digital-cdc-rsc-mgr.h> |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 26 | #include "swrm_registers.h" |
| 27 | #include "swr-mstr-ctrl.h" |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 28 | |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 29 | #define SWR_NUM_PORTS 4 /* TODO - Get this info from DT */ |
| 30 | |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 31 | #define SWRM_FRAME_SYNC_SEL 4000 /* 4KHz */ |
Sudheer Papothi | 8a8b12b | 2019-11-15 23:06:41 +0530 | [diff] [blame] | 32 | #define SWRM_FRAME_SYNC_SEL_NATIVE 3675 /* 3.675KHz */ |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 33 | #define SWRM_SYSTEM_RESUME_TIMEOUT_MS 700 |
| 34 | #define SWRM_SYS_SUSPEND_WAIT 1 |
Sudheer Papothi | 3d1596e | 2018-10-27 06:19:18 +0530 | [diff] [blame] | 35 | |
Sudheer Papothi | 4c322b1 | 2018-10-31 06:34:01 +0530 | [diff] [blame] | 36 | #define SWRM_DSD_PARAMS_PORT 4 |
| 37 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 38 | #define SWR_BROADCAST_CMD_ID 0x0F |
Sudheer Papothi | 3590b31 | 2019-06-04 23:51:30 +0530 | [diff] [blame] | 39 | #define SWR_AUTO_SUSPEND_DELAY 1 /* delay in sec */ |
Sudheer Papothi | 7c067e8 | 2018-11-15 06:53:35 +0530 | [diff] [blame] | 40 | #define SWR_DEV_ID_MASK 0xFFFFFFFFFFFF |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 41 | #define SWR_REG_VAL_PACK(data, dev, id, reg) \ |
| 42 | ((reg) | ((id) << 16) | ((dev) << 20) | ((data) << 24)) |
| 43 | |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 44 | #define SWR_INVALID_PARAM 0xFF |
Laxminath Kasam | 990c70b | 2018-11-09 23:15:09 +0530 | [diff] [blame] | 45 | #define SWR_HSTOP_MAX_VAL 0xF |
| 46 | #define SWR_HSTART_MIN_VAL 0x0 |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 47 | |
Vatsal Bucha | e50b500 | 2019-09-19 14:32:20 +0530 | [diff] [blame] | 48 | #define ERR_AUTO_SUSPEND_TIMER_VAL 0x1 |
| 49 | |
Ramprasad Katkam | 8330351 | 2018-10-11 17:34:22 +0530 | [diff] [blame] | 50 | #define SWRM_INTERRUPT_STATUS_MASK 0x1FDFD |
Laxminath Kasam | ec8c909 | 2019-12-17 13:12:58 +0530 | [diff] [blame] | 51 | #define SWRM_LINK_STATUS_RETRY_CNT 100 |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 52 | |
| 53 | #define SWRM_ROW_48 48 |
| 54 | #define SWRM_ROW_50 50 |
| 55 | #define SWRM_ROW_64 64 |
| 56 | #define SWRM_COL_02 02 |
| 57 | #define SWRM_COL_16 16 |
| 58 | |
Vatsal Bucha | ad9d364 | 2020-07-13 02:30:04 -0700 | [diff] [blame] | 59 | #define SWR_OVERFLOW_RETRY_COUNT 30 |
| 60 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 61 | /* pm runtime auto suspend timer in msecs */ |
| 62 | static int auto_suspend_timer = SWR_AUTO_SUSPEND_DELAY * 1000; |
| 63 | module_param(auto_suspend_timer, int, 0664); |
| 64 | MODULE_PARM_DESC(auto_suspend_timer, "timer for auto suspend"); |
| 65 | |
| 66 | enum { |
| 67 | SWR_NOT_PRESENT, /* Device is detached/not present on the bus */ |
| 68 | SWR_ATTACHED_OK, /* Device is attached */ |
| 69 | SWR_ALERT, /* Device alters master for any interrupts */ |
| 70 | SWR_RESERVED, /* Reserved */ |
| 71 | }; |
| 72 | |
| 73 | enum { |
| 74 | MASTER_ID_WSA = 1, |
| 75 | MASTER_ID_RX, |
| 76 | MASTER_ID_TX |
| 77 | }; |
Ramprasad Katkam | cab8d72 | 2018-09-28 15:54:06 +0530 | [diff] [blame] | 78 | |
| 79 | enum { |
| 80 | ENABLE_PENDING, |
| 81 | DISABLE_PENDING |
| 82 | }; |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 83 | |
| 84 | enum { |
| 85 | LPASS_HW_CORE, |
| 86 | LPASS_AUDIO_CORE, |
| 87 | }; |
| 88 | |
Vatsal Bucha | ad9d364 | 2020-07-13 02:30:04 -0700 | [diff] [blame] | 89 | enum { |
| 90 | SWRM_WR_CHECK_AVAIL, |
| 91 | SWRM_RD_CHECK_AVAIL, |
| 92 | }; |
| 93 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 94 | #define TRUE 1 |
| 95 | #define FALSE 0 |
| 96 | |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 97 | #define SWRM_MAX_PORT_REG 120 |
Ramprasad Katkam | 8330351 | 2018-10-11 17:34:22 +0530 | [diff] [blame] | 98 | #define SWRM_MAX_INIT_REG 11 |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 99 | |
Laxminath Kasam | fbcaf32 | 2018-07-18 00:38:14 +0530 | [diff] [blame] | 100 | #define MAX_FIFO_RD_FAIL_RETRY 3 |
| 101 | |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 102 | static bool swrm_lock_sleep(struct swr_mstr_ctrl *swrm); |
| 103 | static void swrm_unlock_sleep(struct swr_mstr_ctrl *swrm); |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 104 | static u32 swr_master_read(struct swr_mstr_ctrl *swrm, unsigned int reg_addr); |
| 105 | static void swr_master_write(struct swr_mstr_ctrl *swrm, u16 reg_addr, u32 val); |
Vatsal Bucha | bd68a7c | 2020-06-08 10:41:56 +0530 | [diff] [blame] | 106 | static int swrm_runtime_resume(struct device *dev); |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 107 | |
| 108 | static u8 swrm_get_clk_div(int mclk_freq, int bus_clk_freq) |
| 109 | { |
| 110 | int clk_div = 0; |
| 111 | u8 div_val = 0; |
| 112 | |
| 113 | if (!mclk_freq || !bus_clk_freq) |
| 114 | return 0; |
| 115 | |
| 116 | clk_div = (mclk_freq / bus_clk_freq); |
| 117 | |
| 118 | switch (clk_div) { |
| 119 | case 32: |
| 120 | div_val = 5; |
| 121 | break; |
| 122 | case 16: |
| 123 | div_val = 4; |
| 124 | break; |
| 125 | case 8: |
| 126 | div_val = 3; |
| 127 | break; |
| 128 | case 4: |
| 129 | div_val = 2; |
| 130 | break; |
| 131 | case 2: |
| 132 | div_val = 1; |
| 133 | break; |
| 134 | case 1: |
| 135 | default: |
| 136 | div_val = 0; |
| 137 | break; |
| 138 | } |
| 139 | |
| 140 | return div_val; |
| 141 | } |
| 142 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 143 | static bool swrm_is_msm_variant(int val) |
| 144 | { |
| 145 | return (val == SWRM_VERSION_1_3); |
| 146 | } |
| 147 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 148 | #ifdef CONFIG_DEBUG_FS |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 149 | static int swrm_debug_open(struct inode *inode, struct file *file) |
| 150 | { |
| 151 | file->private_data = inode->i_private; |
| 152 | return 0; |
| 153 | } |
| 154 | |
| 155 | static int get_parameters(char *buf, u32 *param1, int num_of_par) |
| 156 | { |
| 157 | char *token; |
| 158 | int base, cnt; |
| 159 | |
| 160 | token = strsep(&buf, " "); |
| 161 | for (cnt = 0; cnt < num_of_par; cnt++) { |
| 162 | if (token) { |
| 163 | if ((token[1] == 'x') || (token[1] == 'X')) |
| 164 | base = 16; |
| 165 | else |
| 166 | base = 10; |
| 167 | |
| 168 | if (kstrtou32(token, base, ¶m1[cnt]) != 0) |
| 169 | return -EINVAL; |
| 170 | |
| 171 | token = strsep(&buf, " "); |
| 172 | } else |
| 173 | return -EINVAL; |
| 174 | } |
| 175 | return 0; |
| 176 | } |
| 177 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 178 | static ssize_t swrm_reg_show(struct swr_mstr_ctrl *swrm, char __user *ubuf, |
| 179 | size_t count, loff_t *ppos) |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 180 | { |
| 181 | int i, reg_val, len; |
| 182 | ssize_t total = 0; |
| 183 | char tmp_buf[SWR_MSTR_MAX_BUF_LEN]; |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 184 | int rem = 0; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 185 | |
| 186 | if (!ubuf || !ppos) |
| 187 | return 0; |
| 188 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 189 | i = ((int) *ppos + SWR_MSTR_START_REG_ADDR); |
| 190 | rem = i%4; |
| 191 | |
| 192 | if (rem) |
| 193 | i = (i - rem); |
| 194 | |
| 195 | for (; i <= SWR_MSTR_MAX_REG_ADDR; i += 4) { |
| 196 | usleep_range(100, 150); |
| 197 | reg_val = swr_master_read(swrm, i); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 198 | len = snprintf(tmp_buf, 25, "0x%.3x: 0x%.2x\n", i, reg_val); |
Aditya Bavanari | 9f599b4 | 2019-08-27 22:18:41 +0530 | [diff] [blame] | 199 | if (len < 0) { |
| 200 | pr_err("%s: fail to fill the buffer\n", __func__); |
| 201 | total = -EFAULT; |
| 202 | goto copy_err; |
| 203 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 204 | if ((total + len) >= count - 1) |
| 205 | break; |
| 206 | if (copy_to_user((ubuf + total), tmp_buf, len)) { |
| 207 | pr_err("%s: fail to copy reg dump\n", __func__); |
| 208 | total = -EFAULT; |
| 209 | goto copy_err; |
| 210 | } |
| 211 | *ppos += len; |
| 212 | total += len; |
| 213 | } |
| 214 | |
| 215 | copy_err: |
| 216 | return total; |
| 217 | } |
| 218 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 219 | static ssize_t swrm_debug_reg_dump(struct file *file, char __user *ubuf, |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 220 | size_t count, loff_t *ppos) |
| 221 | { |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 222 | struct swr_mstr_ctrl *swrm; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 223 | |
| 224 | if (!count || !file || !ppos || !ubuf) |
| 225 | return -EINVAL; |
| 226 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 227 | swrm = file->private_data; |
| 228 | if (!swrm) |
| 229 | return -EINVAL; |
| 230 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 231 | if (*ppos < 0) |
| 232 | return -EINVAL; |
| 233 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 234 | return swrm_reg_show(swrm, ubuf, count, ppos); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 235 | } |
| 236 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 237 | static ssize_t swrm_debug_read(struct file *file, char __user *ubuf, |
| 238 | size_t count, loff_t *ppos) |
| 239 | { |
| 240 | char lbuf[SWR_MSTR_RD_BUF_LEN]; |
| 241 | struct swr_mstr_ctrl *swrm = NULL; |
| 242 | |
| 243 | if (!count || !file || !ppos || !ubuf) |
| 244 | return -EINVAL; |
| 245 | |
| 246 | swrm = file->private_data; |
| 247 | if (!swrm) |
| 248 | return -EINVAL; |
| 249 | |
| 250 | if (*ppos < 0) |
| 251 | return -EINVAL; |
| 252 | |
| 253 | snprintf(lbuf, sizeof(lbuf), "0x%x\n", swrm->read_data); |
| 254 | |
| 255 | return simple_read_from_buffer(ubuf, count, ppos, lbuf, |
| 256 | strnlen(lbuf, 7)); |
| 257 | } |
| 258 | |
| 259 | static ssize_t swrm_debug_peek_write(struct file *file, const char __user *ubuf, |
| 260 | size_t count, loff_t *ppos) |
| 261 | { |
| 262 | char lbuf[SWR_MSTR_RD_BUF_LEN]; |
| 263 | int rc; |
| 264 | u32 param[5]; |
| 265 | struct swr_mstr_ctrl *swrm = NULL; |
| 266 | |
| 267 | if (!count || !file || !ppos || !ubuf) |
| 268 | return -EINVAL; |
| 269 | |
| 270 | swrm = file->private_data; |
| 271 | if (!swrm) |
| 272 | return -EINVAL; |
| 273 | |
| 274 | if (*ppos < 0) |
| 275 | return -EINVAL; |
| 276 | |
| 277 | if (count > sizeof(lbuf) - 1) |
| 278 | return -EINVAL; |
| 279 | |
| 280 | rc = copy_from_user(lbuf, ubuf, count); |
| 281 | if (rc) |
| 282 | return -EFAULT; |
| 283 | |
| 284 | lbuf[count] = '\0'; |
| 285 | rc = get_parameters(lbuf, param, 1); |
| 286 | if ((param[0] <= SWR_MSTR_MAX_REG_ADDR) && (rc == 0)) |
| 287 | swrm->read_data = swr_master_read(swrm, param[0]); |
| 288 | else |
| 289 | rc = -EINVAL; |
| 290 | |
| 291 | if (rc == 0) |
| 292 | rc = count; |
| 293 | else |
| 294 | dev_err(swrm->dev, "%s: rc = %d\n", __func__, rc); |
| 295 | |
| 296 | return rc; |
| 297 | } |
| 298 | |
| 299 | static ssize_t swrm_debug_write(struct file *file, |
| 300 | const char __user *ubuf, size_t count, loff_t *ppos) |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 301 | { |
| 302 | char lbuf[SWR_MSTR_WR_BUF_LEN]; |
| 303 | int rc; |
| 304 | u32 param[5]; |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 305 | struct swr_mstr_ctrl *swrm; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 306 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 307 | if (!file || !ppos || !ubuf) |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 308 | return -EINVAL; |
| 309 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 310 | swrm = file->private_data; |
| 311 | if (!swrm) |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 312 | return -EINVAL; |
| 313 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 314 | if (count > sizeof(lbuf) - 1) |
| 315 | return -EINVAL; |
| 316 | |
| 317 | rc = copy_from_user(lbuf, ubuf, count); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 318 | if (rc) |
| 319 | return -EFAULT; |
| 320 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 321 | lbuf[count] = '\0'; |
| 322 | rc = get_parameters(lbuf, param, 2); |
| 323 | if ((param[0] <= SWR_MSTR_MAX_REG_ADDR) && |
| 324 | (param[1] <= 0xFFFFFFFF) && |
| 325 | (rc == 0)) |
| 326 | swr_master_write(swrm, param[0], param[1]); |
| 327 | else |
| 328 | rc = -EINVAL; |
| 329 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 330 | if (rc == 0) |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 331 | rc = count; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 332 | else |
| 333 | pr_err("%s: rc = %d\n", __func__, rc); |
| 334 | |
| 335 | return rc; |
| 336 | } |
| 337 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 338 | static const struct file_operations swrm_debug_read_ops = { |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 339 | .open = swrm_debug_open, |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 340 | .write = swrm_debug_peek_write, |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 341 | .read = swrm_debug_read, |
| 342 | }; |
| 343 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 344 | static const struct file_operations swrm_debug_write_ops = { |
| 345 | .open = swrm_debug_open, |
| 346 | .write = swrm_debug_write, |
| 347 | }; |
| 348 | |
| 349 | static const struct file_operations swrm_debug_dump_ops = { |
| 350 | .open = swrm_debug_open, |
| 351 | .read = swrm_debug_reg_dump, |
| 352 | }; |
| 353 | #endif |
| 354 | |
Sudheer Papothi | 0016db1 | 2019-06-11 04:42:38 +0530 | [diff] [blame] | 355 | static void swrm_reg_dump(struct swr_mstr_ctrl *swrm, |
| 356 | u32 *reg, u32 *val, int len, const char* func) |
| 357 | { |
| 358 | int i = 0; |
| 359 | |
| 360 | for (i = 0; i < len; i++) |
| 361 | dev_dbg(swrm->dev, "%s: reg = 0x%x val = 0x%x\n", |
| 362 | func, reg[i], val[i]); |
| 363 | } |
| 364 | |
Sudheer Papothi | 921b865 | 2019-10-03 02:13:32 +0530 | [diff] [blame] | 365 | static bool is_swr_clk_needed(struct swr_mstr_ctrl *swrm) |
| 366 | { |
| 367 | return ((swrm->version <= SWRM_VERSION_1_5_1) ? true : false); |
| 368 | } |
| 369 | |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 370 | static int swrm_request_hw_vote(struct swr_mstr_ctrl *swrm, |
| 371 | int core_type, bool enable) |
| 372 | { |
| 373 | int ret = 0; |
| 374 | |
Aditya Bavanari | eb04461 | 2019-12-22 17:14:15 +0530 | [diff] [blame] | 375 | mutex_lock(&swrm->devlock); |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 376 | if (core_type == LPASS_HW_CORE) { |
| 377 | if (swrm->lpass_core_hw_vote) { |
| 378 | if (enable) { |
Aditya Bavanari | eb04461 | 2019-12-22 17:14:15 +0530 | [diff] [blame] | 379 | if (!swrm->dev_up) { |
| 380 | dev_dbg(swrm->dev, "%s: device is down or SSR state\n", |
| 381 | __func__); |
| 382 | trace_printk("%s: device is down or SSR state\n", |
| 383 | __func__); |
| 384 | mutex_unlock(&swrm->devlock); |
| 385 | return -ENODEV; |
| 386 | } |
| 387 | if (++swrm->hw_core_clk_en == 1) { |
| 388 | ret = |
Aditya Bavanari | bb981b7 | 2020-03-19 18:30:10 +0530 | [diff] [blame] | 389 | digital_cdc_rsc_mgr_hw_vote_enable( |
| 390 | swrm->lpass_core_hw_vote); |
Aditya Bavanari | eb04461 | 2019-12-22 17:14:15 +0530 | [diff] [blame] | 391 | if (ret < 0) { |
| 392 | dev_err(swrm->dev, |
| 393 | "%s:lpass core hw enable failed\n", |
| 394 | __func__); |
| 395 | --swrm->hw_core_clk_en; |
| 396 | } |
| 397 | } |
| 398 | } else { |
| 399 | --swrm->hw_core_clk_en; |
| 400 | if (swrm->hw_core_clk_en < 0) |
| 401 | swrm->hw_core_clk_en = 0; |
| 402 | else if (swrm->hw_core_clk_en == 0) |
Aditya Bavanari | bb981b7 | 2020-03-19 18:30:10 +0530 | [diff] [blame] | 403 | digital_cdc_rsc_mgr_hw_vote_disable( |
| 404 | swrm->lpass_core_hw_vote); |
Aditya Bavanari | eb04461 | 2019-12-22 17:14:15 +0530 | [diff] [blame] | 405 | } |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 406 | } |
| 407 | } |
| 408 | if (core_type == LPASS_AUDIO_CORE) { |
| 409 | if (swrm->lpass_core_audio) { |
| 410 | if (enable) { |
Aditya Bavanari | eb04461 | 2019-12-22 17:14:15 +0530 | [diff] [blame] | 411 | if (!swrm->dev_up) { |
| 412 | dev_dbg(swrm->dev, "%s: device is down or SSR state\n", |
| 413 | __func__); |
| 414 | trace_printk("%s: device is down or SSR state\n", |
| 415 | __func__); |
| 416 | mutex_unlock(&swrm->devlock); |
| 417 | return -ENODEV; |
| 418 | } |
| 419 | if (++swrm->aud_core_clk_en == 1) { |
| 420 | ret = |
Aditya Bavanari | bb981b7 | 2020-03-19 18:30:10 +0530 | [diff] [blame] | 421 | digital_cdc_rsc_mgr_hw_vote_enable( |
| 422 | swrm->lpass_core_audio); |
Aditya Bavanari | eb04461 | 2019-12-22 17:14:15 +0530 | [diff] [blame] | 423 | if (ret < 0) { |
| 424 | dev_err(swrm->dev, |
| 425 | "%s:lpass audio hw enable failed\n", |
| 426 | __func__); |
| 427 | --swrm->aud_core_clk_en; |
| 428 | } |
| 429 | } |
| 430 | } else { |
| 431 | --swrm->aud_core_clk_en; |
| 432 | if (swrm->aud_core_clk_en < 0) |
| 433 | swrm->aud_core_clk_en = 0; |
| 434 | else if (swrm->aud_core_clk_en == 0) |
Aditya Bavanari | bb981b7 | 2020-03-19 18:30:10 +0530 | [diff] [blame] | 435 | digital_cdc_rsc_mgr_hw_vote_disable( |
| 436 | swrm->lpass_core_audio); |
Aditya Bavanari | eb04461 | 2019-12-22 17:14:15 +0530 | [diff] [blame] | 437 | } |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 438 | } |
| 439 | } |
| 440 | |
Aditya Bavanari | eb04461 | 2019-12-22 17:14:15 +0530 | [diff] [blame] | 441 | mutex_unlock(&swrm->devlock); |
| 442 | dev_dbg(swrm->dev, "%s: hw_clk_en: %d audio_core_clk_en: %d\n", |
| 443 | __func__, swrm->hw_core_clk_en, swrm->aud_core_clk_en); |
| 444 | trace_printk("%s: hw_clk_en: %d audio_core_clk_en: %d\n", |
| 445 | __func__, swrm->hw_core_clk_en, swrm->aud_core_clk_en); |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 446 | return ret; |
| 447 | } |
| 448 | |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 449 | static int swrm_get_ssp_period(struct swr_mstr_ctrl *swrm, |
| 450 | int row, int col, |
| 451 | int frame_sync) |
| 452 | { |
| 453 | if (!swrm || !row || !col || !frame_sync) |
| 454 | return 1; |
| 455 | |
| 456 | return ((swrm->bus_clk * 2) / ((row * col) * frame_sync)); |
| 457 | } |
| 458 | |
Sudheer Papothi | 921b865 | 2019-10-03 02:13:32 +0530 | [diff] [blame] | 459 | static int swrm_core_vote_request(struct swr_mstr_ctrl *swrm) |
| 460 | { |
| 461 | int ret = 0; |
| 462 | |
| 463 | if (!swrm->handle) |
| 464 | return -EINVAL; |
| 465 | |
| 466 | mutex_lock(&swrm->clklock); |
| 467 | if (!swrm->dev_up) { |
| 468 | ret = -ENODEV; |
| 469 | goto exit; |
| 470 | } |
| 471 | if (swrm->core_vote) { |
| 472 | ret = swrm->core_vote(swrm->handle, true); |
| 473 | if (ret) |
| 474 | dev_err_ratelimited(swrm->dev, |
| 475 | "%s: core vote request failed\n", __func__); |
| 476 | } |
| 477 | exit: |
| 478 | mutex_unlock(&swrm->clklock); |
| 479 | |
| 480 | return ret; |
| 481 | } |
| 482 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 483 | static int swrm_clk_request(struct swr_mstr_ctrl *swrm, bool enable) |
| 484 | { |
Ramprasad Katkam | 6bce2e7 | 2018-10-10 19:20:13 +0530 | [diff] [blame] | 485 | int ret = 0; |
| 486 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 487 | if (!swrm->clk || !swrm->handle) |
| 488 | return -EINVAL; |
| 489 | |
Ramprasad Katkam | 6bce2e7 | 2018-10-10 19:20:13 +0530 | [diff] [blame] | 490 | mutex_lock(&swrm->clklock); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 491 | if (enable) { |
Aditya Bavanari | f4a471d | 2019-02-19 17:57:12 +0530 | [diff] [blame] | 492 | if (!swrm->dev_up) { |
| 493 | ret = -ENODEV; |
Ramprasad Katkam | 6bce2e7 | 2018-10-10 19:20:13 +0530 | [diff] [blame] | 494 | goto exit; |
Aditya Bavanari | f4a471d | 2019-02-19 17:57:12 +0530 | [diff] [blame] | 495 | } |
Sudheer Papothi | 921b865 | 2019-10-03 02:13:32 +0530 | [diff] [blame] | 496 | if (is_swr_clk_needed(swrm)) { |
| 497 | if (swrm->core_vote) { |
| 498 | ret = swrm->core_vote(swrm->handle, true); |
| 499 | if (ret) { |
| 500 | dev_err_ratelimited(swrm->dev, |
| 501 | "%s: core vote request failed\n", |
| 502 | __func__); |
| 503 | goto exit; |
| 504 | } |
Karthikeyan Mani | 1d750fe | 2019-09-06 14:36:09 -0700 | [diff] [blame] | 505 | } |
| 506 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 507 | swrm->clk_ref_count++; |
| 508 | if (swrm->clk_ref_count == 1) { |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 509 | trace_printk("%s: clock enable count %d", |
| 510 | __func__, swrm->clk_ref_count); |
Ramprasad Katkam | 6bce2e7 | 2018-10-10 19:20:13 +0530 | [diff] [blame] | 511 | ret = swrm->clk(swrm->handle, true); |
| 512 | if (ret) { |
Ramprasad Katkam | 14efed6 | 2019-03-07 13:16:50 +0530 | [diff] [blame] | 513 | dev_err_ratelimited(swrm->dev, |
Ramprasad Katkam | 6bce2e7 | 2018-10-10 19:20:13 +0530 | [diff] [blame] | 514 | "%s: clock enable req failed", |
| 515 | __func__); |
| 516 | --swrm->clk_ref_count; |
| 517 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 518 | } |
| 519 | } else if (--swrm->clk_ref_count == 0) { |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 520 | trace_printk("%s: clock disable count %d", |
| 521 | __func__, swrm->clk_ref_count); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 522 | swrm->clk(swrm->handle, false); |
Ramprasad Katkam | 6bce2e7 | 2018-10-10 19:20:13 +0530 | [diff] [blame] | 523 | complete(&swrm->clk_off_complete); |
| 524 | } |
| 525 | if (swrm->clk_ref_count < 0) { |
Meng Wang | 8c60bb5 | 2019-06-19 15:49:06 +0800 | [diff] [blame] | 526 | dev_err(swrm->dev, "%s: swrm clk count mismatch\n", __func__); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 527 | swrm->clk_ref_count = 0; |
| 528 | } |
Ramprasad Katkam | 6bce2e7 | 2018-10-10 19:20:13 +0530 | [diff] [blame] | 529 | |
| 530 | exit: |
| 531 | mutex_unlock(&swrm->clklock); |
| 532 | return ret; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 533 | } |
| 534 | |
| 535 | static int swrm_ahb_write(struct swr_mstr_ctrl *swrm, |
| 536 | u16 reg, u32 *value) |
| 537 | { |
Laxminath Kasam | fbcaf32 | 2018-07-18 00:38:14 +0530 | [diff] [blame] | 538 | u32 temp = (u32)(*value); |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 539 | int ret = 0; |
| 540 | |
| 541 | mutex_lock(&swrm->devlock); |
| 542 | if (!swrm->dev_up) |
| 543 | goto err; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 544 | |
Sudheer Papothi | 921b865 | 2019-10-03 02:13:32 +0530 | [diff] [blame] | 545 | if (is_swr_clk_needed(swrm)) { |
| 546 | ret = swrm_clk_request(swrm, TRUE); |
| 547 | if (ret) { |
| 548 | dev_err_ratelimited(swrm->dev, |
| 549 | "%s: clock request failed\n", |
| 550 | __func__); |
| 551 | goto err; |
| 552 | } |
| 553 | } else if (swrm_core_vote_request(swrm)) { |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 554 | goto err; |
| 555 | } |
Sudheer Papothi | 921b865 | 2019-10-03 02:13:32 +0530 | [diff] [blame] | 556 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 557 | iowrite32(temp, swrm->swrm_dig_base + reg); |
Sudheer Papothi | 921b865 | 2019-10-03 02:13:32 +0530 | [diff] [blame] | 558 | if (is_swr_clk_needed(swrm)) |
| 559 | swrm_clk_request(swrm, FALSE); |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 560 | err: |
| 561 | mutex_unlock(&swrm->devlock); |
| 562 | return ret; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 563 | } |
| 564 | |
| 565 | static int swrm_ahb_read(struct swr_mstr_ctrl *swrm, |
| 566 | u16 reg, u32 *value) |
| 567 | { |
Laxminath Kasam | fbcaf32 | 2018-07-18 00:38:14 +0530 | [diff] [blame] | 568 | u32 temp = 0; |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 569 | int ret = 0; |
| 570 | |
| 571 | mutex_lock(&swrm->devlock); |
| 572 | if (!swrm->dev_up) |
| 573 | goto err; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 574 | |
Sudheer Papothi | 921b865 | 2019-10-03 02:13:32 +0530 | [diff] [blame] | 575 | if (is_swr_clk_needed(swrm)) { |
| 576 | ret = swrm_clk_request(swrm, TRUE); |
| 577 | if (ret) { |
| 578 | dev_err_ratelimited(swrm->dev, "%s: clock request failed\n", |
| 579 | __func__); |
| 580 | goto err; |
| 581 | } |
| 582 | } else if (swrm_core_vote_request(swrm)) { |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 583 | goto err; |
| 584 | } |
Sudheer Papothi | 921b865 | 2019-10-03 02:13:32 +0530 | [diff] [blame] | 585 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 586 | temp = ioread32(swrm->swrm_dig_base + reg); |
Laxminath Kasam | fbcaf32 | 2018-07-18 00:38:14 +0530 | [diff] [blame] | 587 | *value = temp; |
Sudheer Papothi | 921b865 | 2019-10-03 02:13:32 +0530 | [diff] [blame] | 588 | if (is_swr_clk_needed(swrm)) |
| 589 | swrm_clk_request(swrm, FALSE); |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 590 | err: |
| 591 | mutex_unlock(&swrm->devlock); |
| 592 | return ret; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 593 | } |
| 594 | |
| 595 | static u32 swr_master_read(struct swr_mstr_ctrl *swrm, unsigned int reg_addr) |
| 596 | { |
| 597 | u32 val = 0; |
| 598 | |
| 599 | if (swrm->read) |
| 600 | val = swrm->read(swrm->handle, reg_addr); |
| 601 | else |
| 602 | swrm_ahb_read(swrm, reg_addr, &val); |
| 603 | return val; |
| 604 | } |
| 605 | |
| 606 | static void swr_master_write(struct swr_mstr_ctrl *swrm, u16 reg_addr, u32 val) |
| 607 | { |
| 608 | if (swrm->write) |
| 609 | swrm->write(swrm->handle, reg_addr, val); |
| 610 | else |
| 611 | swrm_ahb_write(swrm, reg_addr, &val); |
| 612 | } |
| 613 | |
| 614 | static int swr_master_bulk_write(struct swr_mstr_ctrl *swrm, u32 *reg_addr, |
| 615 | u32 *val, unsigned int length) |
| 616 | { |
| 617 | int i = 0; |
| 618 | |
| 619 | if (swrm->bulk_write) |
| 620 | swrm->bulk_write(swrm->handle, reg_addr, val, length); |
| 621 | else { |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 622 | mutex_lock(&swrm->iolock); |
Laxminath Kasam | fbcaf32 | 2018-07-18 00:38:14 +0530 | [diff] [blame] | 623 | for (i = 0; i < length; i++) { |
| 624 | /* wait for FIFO WR command to complete to avoid overflow */ |
Karthikeyan Mani | 5d52dd8 | 2019-08-15 16:58:08 -0700 | [diff] [blame] | 625 | /* |
Vatsal Bucha | dc52af1 | 2020-03-16 23:54:29 +0530 | [diff] [blame] | 626 | * Reduce sleep from 100us to 50us to meet KPIs |
Karthikeyan Mani | 5d52dd8 | 2019-08-15 16:58:08 -0700 | [diff] [blame] | 627 | * This still meets the hardware spec |
| 628 | */ |
Vatsal Bucha | dc52af1 | 2020-03-16 23:54:29 +0530 | [diff] [blame] | 629 | usleep_range(50, 55); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 630 | swr_master_write(swrm, reg_addr[i], val[i]); |
Laxminath Kasam | fbcaf32 | 2018-07-18 00:38:14 +0530 | [diff] [blame] | 631 | } |
Vatsal Bucha | e44b8fb | 2020-06-25 11:43:18 +0530 | [diff] [blame] | 632 | usleep_range(100, 110); |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 633 | mutex_unlock(&swrm->iolock); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 634 | } |
| 635 | return 0; |
| 636 | } |
| 637 | |
Laxminath Kasam | e229197 | 2019-11-08 14:51:59 +0530 | [diff] [blame] | 638 | static bool swrm_check_link_status(struct swr_mstr_ctrl *swrm, bool active) |
| 639 | { |
| 640 | int retry = SWRM_LINK_STATUS_RETRY_CNT; |
| 641 | int ret = false; |
| 642 | int status = active ? 0x1 : 0x0; |
Laxminath Kasam | 09819e9 | 2019-11-18 14:38:11 +0530 | [diff] [blame] | 643 | int comp_sts = 0x0; |
Laxminath Kasam | e229197 | 2019-11-08 14:51:59 +0530 | [diff] [blame] | 644 | |
| 645 | if ((swrm->version <= SWRM_VERSION_1_5_1)) |
| 646 | return true; |
| 647 | |
| 648 | do { |
Laxminath Kasam | 09819e9 | 2019-11-18 14:38:11 +0530 | [diff] [blame] | 649 | comp_sts = swr_master_read(swrm, SWRM_COMP_STATUS) & 0x01; |
| 650 | /* check comp status and status requested met */ |
| 651 | if ((comp_sts && status) || (!comp_sts && !status)) { |
Laxminath Kasam | e229197 | 2019-11-08 14:51:59 +0530 | [diff] [blame] | 652 | ret = true; |
| 653 | break; |
| 654 | } |
| 655 | retry--; |
| 656 | usleep_range(500, 510); |
| 657 | } while (retry); |
| 658 | |
| 659 | if (retry == 0) |
| 660 | dev_err(swrm->dev, "%s: link status not %s\n", __func__, |
| 661 | active ? "connected" : "disconnected"); |
| 662 | |
| 663 | return ret; |
| 664 | } |
| 665 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 666 | static bool swrm_is_port_en(struct swr_master *mstr) |
| 667 | { |
| 668 | return !!(mstr->num_port); |
| 669 | } |
| 670 | |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 671 | static void copy_port_tables(struct swr_mstr_ctrl *swrm, |
| 672 | struct port_params *params) |
| 673 | { |
| 674 | u8 i; |
| 675 | struct port_params *config = params; |
| 676 | |
| 677 | for (i = 0; i < SWR_MSTR_PORT_LEN; i++) { |
| 678 | /* wsa uses single frame structure for all configurations */ |
| 679 | if (!swrm->mport_cfg[i].port_en) |
| 680 | continue; |
| 681 | swrm->mport_cfg[i].sinterval = config[i].si; |
| 682 | swrm->mport_cfg[i].offset1 = config[i].off1; |
| 683 | swrm->mport_cfg[i].offset2 = config[i].off2; |
| 684 | swrm->mport_cfg[i].hstart = config[i].hstart; |
| 685 | swrm->mport_cfg[i].hstop = config[i].hstop; |
| 686 | swrm->mport_cfg[i].blk_pack_mode = config[i].bp_mode; |
| 687 | swrm->mport_cfg[i].blk_grp_count = config[i].bgp_ctrl; |
| 688 | swrm->mport_cfg[i].word_length = config[i].wd_len; |
| 689 | swrm->mport_cfg[i].lane_ctrl = config[i].lane_ctrl; |
| 690 | } |
| 691 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 692 | static int swrm_get_port_config(struct swr_mstr_ctrl *swrm) |
| 693 | { |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 694 | struct port_params *params; |
Sudheer Papothi | 4c322b1 | 2018-10-31 06:34:01 +0530 | [diff] [blame] | 695 | u32 usecase = 0; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 696 | |
Sudheer Papothi | 4c322b1 | 2018-10-31 06:34:01 +0530 | [diff] [blame] | 697 | /* TODO - Send usecase information to avoid checking for master_id */ |
| 698 | if (swrm->mport_cfg[SWRM_DSD_PARAMS_PORT].port_en && |
| 699 | (swrm->master_id == MASTER_ID_RX)) |
| 700 | usecase = 1; |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 701 | |
Sudheer Papothi | 4c322b1 | 2018-10-31 06:34:01 +0530 | [diff] [blame] | 702 | params = swrm->port_param[usecase]; |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 703 | copy_port_tables(swrm, params); |
Sudheer Papothi | 4c322b1 | 2018-10-31 06:34:01 +0530 | [diff] [blame] | 704 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 705 | return 0; |
| 706 | } |
| 707 | |
| 708 | static int swrm_get_master_port(struct swr_mstr_ctrl *swrm, u8 *mstr_port_id, |
| 709 | u8 *mstr_ch_mask, u8 mstr_prt_type, |
| 710 | u8 slv_port_id) |
| 711 | { |
| 712 | int i, j; |
| 713 | *mstr_port_id = 0; |
| 714 | |
| 715 | for (i = 1; i <= swrm->num_ports; i++) { |
| 716 | for (j = 0; j < SWR_MAX_CH_PER_PORT; j++) { |
| 717 | if (swrm->port_mapping[i][j].port_type == mstr_prt_type) |
| 718 | goto found; |
| 719 | } |
| 720 | } |
| 721 | found: |
| 722 | if (i > swrm->num_ports || j == SWR_MAX_CH_PER_PORT) { |
| 723 | dev_err(swrm->dev, "%s: port type not supported by master\n", |
| 724 | __func__); |
| 725 | return -EINVAL; |
| 726 | } |
| 727 | /* id 0 corresponds to master port 1 */ |
| 728 | *mstr_port_id = i - 1; |
| 729 | *mstr_ch_mask = swrm->port_mapping[i][j].ch_mask; |
| 730 | |
| 731 | return 0; |
| 732 | |
| 733 | } |
| 734 | |
| 735 | static u32 swrm_get_packed_reg_val(u8 *cmd_id, u8 cmd_data, |
| 736 | u8 dev_addr, u16 reg_addr) |
| 737 | { |
| 738 | u32 val; |
| 739 | u8 id = *cmd_id; |
| 740 | |
| 741 | if (id != SWR_BROADCAST_CMD_ID) { |
| 742 | if (id < 14) |
| 743 | id += 1; |
| 744 | else |
| 745 | id = 0; |
| 746 | *cmd_id = id; |
| 747 | } |
| 748 | val = SWR_REG_VAL_PACK(cmd_data, dev_addr, id, reg_addr); |
| 749 | |
| 750 | return val; |
| 751 | } |
| 752 | |
Vatsal Bucha | ad9d364 | 2020-07-13 02:30:04 -0700 | [diff] [blame] | 753 | static void swrm_wait_for_fifo_avail(struct swr_mstr_ctrl *swrm, int swrm_rd_wr) |
| 754 | { |
| 755 | u32 fifo_outstanding_cmd; |
| 756 | u8 fifo_retry_count = SWR_OVERFLOW_RETRY_COUNT; |
| 757 | |
| 758 | if (swrm_rd_wr) { |
| 759 | /* Check for fifo underflow during read */ |
| 760 | /* Check no of outstanding commands in fifo before read */ |
| 761 | fifo_outstanding_cmd = ((swr_master_read(swrm, |
| 762 | SWRM_CMD_FIFO_STATUS) & 0x001F0000) >> 16); |
| 763 | if (fifo_outstanding_cmd == 0) { |
| 764 | while (fifo_retry_count) { |
| 765 | usleep_range(500, 510); |
| 766 | fifo_outstanding_cmd = |
| 767 | ((swr_master_read (swrm, |
| 768 | SWRM_CMD_FIFO_STATUS) & 0x001F0000) |
| 769 | >> 16); |
| 770 | fifo_retry_count--; |
| 771 | if (fifo_outstanding_cmd > 0) |
| 772 | break; |
| 773 | } |
| 774 | } |
| 775 | if (fifo_outstanding_cmd == 0) |
| 776 | dev_err_ratelimited(swrm->dev, |
| 777 | "%s err read underflow\n", __func__); |
| 778 | } else { |
| 779 | /* Check for fifo overflow during write */ |
| 780 | /* Check no of outstanding commands in fifo before write */ |
| 781 | fifo_outstanding_cmd = ((swr_master_read(swrm, |
| 782 | SWRM_CMD_FIFO_STATUS) & 0x00001F00) |
| 783 | >> 8); |
| 784 | if (fifo_outstanding_cmd == swrm->wr_fifo_depth) { |
| 785 | while (fifo_retry_count) { |
| 786 | usleep_range(500, 510); |
| 787 | fifo_outstanding_cmd = |
| 788 | ((swr_master_read(swrm, SWRM_CMD_FIFO_STATUS) |
| 789 | & 0x00001F00) >> 8); |
| 790 | fifo_retry_count--; |
| 791 | if (fifo_outstanding_cmd < swrm->wr_fifo_depth) |
| 792 | break; |
| 793 | } |
| 794 | } |
| 795 | if (fifo_outstanding_cmd == swrm->wr_fifo_depth) |
| 796 | dev_err_ratelimited(swrm->dev, |
| 797 | "%s err write overflow\n", __func__); |
| 798 | } |
| 799 | } |
| 800 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 801 | static int swrm_cmd_fifo_rd_cmd(struct swr_mstr_ctrl *swrm, int *cmd_data, |
| 802 | u8 dev_addr, u8 cmd_id, u16 reg_addr, |
| 803 | u32 len) |
| 804 | { |
| 805 | u32 val; |
Laxminath Kasam | fbcaf32 | 2018-07-18 00:38:14 +0530 | [diff] [blame] | 806 | u32 retry_attempt = 0; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 807 | |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 808 | mutex_lock(&swrm->iolock); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 809 | val = swrm_get_packed_reg_val(&swrm->rcmd_id, len, dev_addr, reg_addr); |
Ramprasad Katkam | 1e90620 | 2019-01-30 14:16:34 +0530 | [diff] [blame] | 810 | if (swrm->read) { |
| 811 | /* skip delay if read is handled in platform driver */ |
| 812 | swr_master_write(swrm, SWRM_CMD_FIFO_RD_CMD, val); |
| 813 | } else { |
Vatsal Bucha | ad9d364 | 2020-07-13 02:30:04 -0700 | [diff] [blame] | 814 | /* |
| 815 | * Check for outstanding cmd wrt. write fifo depth to avoid |
| 816 | * overflow as read will also increase write fifo cnt. |
| 817 | */ |
| 818 | swrm_wait_for_fifo_avail(swrm, SWRM_WR_CHECK_AVAIL); |
Ramprasad Katkam | 1e90620 | 2019-01-30 14:16:34 +0530 | [diff] [blame] | 819 | /* wait for FIFO RD to complete to avoid overflow */ |
| 820 | usleep_range(100, 105); |
| 821 | swr_master_write(swrm, SWRM_CMD_FIFO_RD_CMD, val); |
| 822 | /* wait for FIFO RD CMD complete to avoid overflow */ |
| 823 | usleep_range(250, 255); |
| 824 | } |
Vatsal Bucha | ad9d364 | 2020-07-13 02:30:04 -0700 | [diff] [blame] | 825 | /* Check if slave responds properly after FIFO RD is complete */ |
| 826 | swrm_wait_for_fifo_avail(swrm, SWRM_RD_CHECK_AVAIL); |
Laxminath Kasam | fbcaf32 | 2018-07-18 00:38:14 +0530 | [diff] [blame] | 827 | retry_read: |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 828 | *cmd_data = swr_master_read(swrm, SWRM_CMD_FIFO_RD_FIFO_ADDR); |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 829 | dev_dbg(swrm->dev, "%s: reg: 0x%x, cmd_id: 0x%x, rcmd_id: 0x%x, \ |
| 830 | dev_num: 0x%x, cmd_data: 0x%x\n", __func__, reg_addr, |
| 831 | cmd_id, swrm->rcmd_id, dev_addr, *cmd_data); |
Laxminath Kasam | fbcaf32 | 2018-07-18 00:38:14 +0530 | [diff] [blame] | 832 | if ((((*cmd_data) & 0xF00) >> 8) != swrm->rcmd_id) { |
| 833 | if (retry_attempt < MAX_FIFO_RD_FAIL_RETRY) { |
| 834 | /* wait 500 us before retry on fifo read failure */ |
| 835 | usleep_range(500, 505); |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 836 | if (retry_attempt == (MAX_FIFO_RD_FAIL_RETRY - 1)) { |
| 837 | swr_master_write(swrm, SWRM_CMD_FIFO_CMD, 0x1); |
| 838 | swr_master_write(swrm, SWRM_CMD_FIFO_RD_CMD, val); |
| 839 | } |
Laxminath Kasam | fbcaf32 | 2018-07-18 00:38:14 +0530 | [diff] [blame] | 840 | retry_attempt++; |
| 841 | goto retry_read; |
| 842 | } else { |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 843 | dev_err_ratelimited(swrm->dev, "%s: reg: 0x%x, cmd_id: 0x%x, \ |
| 844 | rcmd_id: 0x%x, dev_num: 0x%x, cmd_data: 0x%x\n", |
| 845 | __func__, reg_addr, cmd_id, swrm->rcmd_id, |
| 846 | dev_addr, *cmd_data); |
| 847 | |
Laxminath Kasam | fbcaf32 | 2018-07-18 00:38:14 +0530 | [diff] [blame] | 848 | dev_err_ratelimited(swrm->dev, |
| 849 | "%s: failed to read fifo\n", __func__); |
| 850 | } |
| 851 | } |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 852 | mutex_unlock(&swrm->iolock); |
| 853 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 854 | return 0; |
| 855 | } |
| 856 | |
| 857 | static int swrm_cmd_fifo_wr_cmd(struct swr_mstr_ctrl *swrm, u8 cmd_data, |
| 858 | u8 dev_addr, u8 cmd_id, u16 reg_addr) |
| 859 | { |
| 860 | u32 val; |
| 861 | int ret = 0; |
| 862 | |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 863 | mutex_lock(&swrm->iolock); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 864 | if (!cmd_id) |
| 865 | val = swrm_get_packed_reg_val(&swrm->wcmd_id, cmd_data, |
| 866 | dev_addr, reg_addr); |
| 867 | else |
| 868 | val = swrm_get_packed_reg_val(&cmd_id, cmd_data, |
| 869 | dev_addr, reg_addr); |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 870 | dev_dbg(swrm->dev, "%s: reg: 0x%x, cmd_id: 0x%x,wcmd_id: 0x%x, \ |
| 871 | dev_num: 0x%x, cmd_data: 0x%x\n", __func__, |
| 872 | reg_addr, cmd_id, swrm->wcmd_id,dev_addr, cmd_data); |
Vatsal Bucha | ad9d364 | 2020-07-13 02:30:04 -0700 | [diff] [blame] | 873 | /* |
| 874 | * Check for outstanding cmd wrt. write fifo depth to avoid |
| 875 | * overflow. |
| 876 | */ |
| 877 | swrm_wait_for_fifo_avail(swrm, SWRM_WR_CHECK_AVAIL); |
Ramprasad Katkam | b4c7c68 | 2018-12-19 18:58:36 +0530 | [diff] [blame] | 878 | swr_master_write(swrm, SWRM_CMD_FIFO_WR_CMD, val); |
Ramprasad Katkam | 1e90620 | 2019-01-30 14:16:34 +0530 | [diff] [blame] | 879 | /* |
| 880 | * wait for FIFO WR command to complete to avoid overflow |
| 881 | * skip delay if write is handled in platform driver. |
| 882 | */ |
| 883 | if(!swrm->write) |
Karthikeyan Mani | 5d52dd8 | 2019-08-15 16:58:08 -0700 | [diff] [blame] | 884 | usleep_range(150, 155); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 885 | if (cmd_id == 0xF) { |
| 886 | /* |
| 887 | * sleep for 10ms for MSM soundwire variant to allow broadcast |
| 888 | * command to complete. |
| 889 | */ |
| 890 | if (swrm_is_msm_variant(swrm->version)) |
| 891 | usleep_range(10000, 10100); |
| 892 | else |
| 893 | wait_for_completion_timeout(&swrm->broadcast, |
| 894 | (2 * HZ/10)); |
| 895 | } |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 896 | mutex_unlock(&swrm->iolock); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 897 | return ret; |
| 898 | } |
| 899 | |
| 900 | static int swrm_read(struct swr_master *master, u8 dev_num, u16 reg_addr, |
| 901 | void *buf, u32 len) |
| 902 | { |
| 903 | struct swr_mstr_ctrl *swrm = swr_get_ctrl_data(master); |
| 904 | int ret = 0; |
| 905 | int val; |
| 906 | u8 *reg_val = (u8 *)buf; |
| 907 | |
| 908 | if (!swrm) { |
| 909 | dev_err(&master->dev, "%s: swrm is NULL\n", __func__); |
| 910 | return -EINVAL; |
| 911 | } |
Ramprasad Katkam | 0db4801 | 2018-11-09 11:01:23 +0530 | [diff] [blame] | 912 | if (!dev_num) { |
| 913 | dev_err(&master->dev, "%s: invalid slave dev num\n", __func__); |
| 914 | return -EINVAL; |
| 915 | } |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 916 | mutex_lock(&swrm->devlock); |
| 917 | if (!swrm->dev_up) { |
| 918 | mutex_unlock(&swrm->devlock); |
| 919 | return 0; |
| 920 | } |
| 921 | mutex_unlock(&swrm->devlock); |
| 922 | |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 923 | pm_runtime_get_sync(swrm->dev); |
Vatsal Bucha | bd68a7c | 2020-06-08 10:41:56 +0530 | [diff] [blame] | 924 | if (swrm->req_clk_switch) |
| 925 | swrm_runtime_resume(swrm->dev); |
Ramprasad Katkam | 0db4801 | 2018-11-09 11:01:23 +0530 | [diff] [blame] | 926 | ret = swrm_cmd_fifo_rd_cmd(swrm, &val, dev_num, 0, reg_addr, len); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 927 | |
| 928 | if (!ret) |
| 929 | *reg_val = (u8)val; |
| 930 | |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 931 | pm_runtime_put_autosuspend(swrm->dev); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 932 | pm_runtime_mark_last_busy(swrm->dev); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 933 | return ret; |
| 934 | } |
| 935 | |
| 936 | static int swrm_write(struct swr_master *master, u8 dev_num, u16 reg_addr, |
| 937 | const void *buf) |
| 938 | { |
| 939 | struct swr_mstr_ctrl *swrm = swr_get_ctrl_data(master); |
| 940 | int ret = 0; |
| 941 | u8 reg_val = *(u8 *)buf; |
| 942 | |
| 943 | if (!swrm) { |
| 944 | dev_err(&master->dev, "%s: swrm is NULL\n", __func__); |
| 945 | return -EINVAL; |
| 946 | } |
Ramprasad Katkam | 0db4801 | 2018-11-09 11:01:23 +0530 | [diff] [blame] | 947 | if (!dev_num) { |
| 948 | dev_err(&master->dev, "%s: invalid slave dev num\n", __func__); |
| 949 | return -EINVAL; |
| 950 | } |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 951 | mutex_lock(&swrm->devlock); |
| 952 | if (!swrm->dev_up) { |
| 953 | mutex_unlock(&swrm->devlock); |
| 954 | return 0; |
| 955 | } |
| 956 | mutex_unlock(&swrm->devlock); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 957 | |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 958 | pm_runtime_get_sync(swrm->dev); |
Vatsal Bucha | bd68a7c | 2020-06-08 10:41:56 +0530 | [diff] [blame] | 959 | if (swrm->req_clk_switch) |
| 960 | swrm_runtime_resume(swrm->dev); |
Ramprasad Katkam | 0db4801 | 2018-11-09 11:01:23 +0530 | [diff] [blame] | 961 | ret = swrm_cmd_fifo_wr_cmd(swrm, reg_val, dev_num, 0, reg_addr); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 962 | |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 963 | pm_runtime_put_autosuspend(swrm->dev); |
| 964 | pm_runtime_mark_last_busy(swrm->dev); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 965 | return ret; |
| 966 | } |
| 967 | |
| 968 | static int swrm_bulk_write(struct swr_master *master, u8 dev_num, void *reg, |
| 969 | const void *buf, size_t len) |
| 970 | { |
| 971 | struct swr_mstr_ctrl *swrm = swr_get_ctrl_data(master); |
| 972 | int ret = 0; |
| 973 | int i; |
| 974 | u32 *val; |
| 975 | u32 *swr_fifo_reg; |
| 976 | |
| 977 | if (!swrm || !swrm->handle) { |
| 978 | dev_err(&master->dev, "%s: swrm is NULL\n", __func__); |
| 979 | return -EINVAL; |
| 980 | } |
| 981 | if (len <= 0) |
| 982 | return -EINVAL; |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 983 | mutex_lock(&swrm->devlock); |
| 984 | if (!swrm->dev_up) { |
| 985 | mutex_unlock(&swrm->devlock); |
| 986 | return 0; |
| 987 | } |
| 988 | mutex_unlock(&swrm->devlock); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 989 | |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 990 | pm_runtime_get_sync(swrm->dev); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 991 | if (dev_num) { |
| 992 | swr_fifo_reg = kcalloc(len, sizeof(u32), GFP_KERNEL); |
| 993 | if (!swr_fifo_reg) { |
| 994 | ret = -ENOMEM; |
| 995 | goto err; |
| 996 | } |
| 997 | val = kcalloc(len, sizeof(u32), GFP_KERNEL); |
| 998 | if (!val) { |
| 999 | ret = -ENOMEM; |
| 1000 | goto mem_fail; |
| 1001 | } |
| 1002 | |
| 1003 | for (i = 0; i < len; i++) { |
| 1004 | val[i] = swrm_get_packed_reg_val(&swrm->wcmd_id, |
| 1005 | ((u8 *)buf)[i], |
| 1006 | dev_num, |
| 1007 | ((u16 *)reg)[i]); |
| 1008 | swr_fifo_reg[i] = SWRM_CMD_FIFO_WR_CMD; |
| 1009 | } |
| 1010 | ret = swr_master_bulk_write(swrm, swr_fifo_reg, val, len); |
| 1011 | if (ret) { |
| 1012 | dev_err(&master->dev, "%s: bulk write failed\n", |
| 1013 | __func__); |
| 1014 | ret = -EINVAL; |
| 1015 | } |
| 1016 | } else { |
| 1017 | dev_err(&master->dev, |
| 1018 | "%s: No support of Bulk write for master regs\n", |
| 1019 | __func__); |
| 1020 | ret = -EINVAL; |
| 1021 | goto err; |
| 1022 | } |
| 1023 | kfree(val); |
| 1024 | mem_fail: |
| 1025 | kfree(swr_fifo_reg); |
| 1026 | err: |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 1027 | pm_runtime_put_autosuspend(swrm->dev); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1028 | pm_runtime_mark_last_busy(swrm->dev); |
| 1029 | return ret; |
| 1030 | } |
| 1031 | |
| 1032 | static u8 get_inactive_bank_num(struct swr_mstr_ctrl *swrm) |
| 1033 | { |
| 1034 | return (swr_master_read(swrm, SWRM_MCP_STATUS) & |
| 1035 | SWRM_MCP_STATUS_BANK_NUM_MASK) ? 0 : 1; |
| 1036 | } |
| 1037 | |
| 1038 | static void enable_bank_switch(struct swr_mstr_ctrl *swrm, u8 bank, |
| 1039 | u8 row, u8 col) |
| 1040 | { |
| 1041 | swrm_cmd_fifo_wr_cmd(swrm, ((row << 3) | col), 0xF, 0xF, |
| 1042 | SWRS_SCP_FRAME_CTRL_BANK(bank)); |
| 1043 | } |
| 1044 | |
Sudheer Papothi | 8a8b12b | 2019-11-15 23:06:41 +0530 | [diff] [blame] | 1045 | static void swrm_switch_frame_shape(struct swr_mstr_ctrl *swrm, int mclk_freq) |
| 1046 | { |
| 1047 | u8 bank; |
| 1048 | u32 n_row, n_col; |
| 1049 | u32 value = 0; |
| 1050 | u32 row = 0, col = 0; |
| 1051 | u8 ssp_period = 0; |
| 1052 | int frame_sync = SWRM_FRAME_SYNC_SEL; |
| 1053 | |
| 1054 | if (mclk_freq == MCLK_FREQ_NATIVE) { |
| 1055 | n_col = SWR_MAX_COL; |
| 1056 | col = SWRM_COL_16; |
| 1057 | n_row = SWR_ROW_64; |
| 1058 | row = SWRM_ROW_64; |
| 1059 | frame_sync = SWRM_FRAME_SYNC_SEL_NATIVE; |
| 1060 | } else { |
| 1061 | n_col = SWR_MIN_COL; |
| 1062 | col = SWRM_COL_02; |
| 1063 | n_row = SWR_ROW_50; |
| 1064 | row = SWRM_ROW_50; |
| 1065 | frame_sync = SWRM_FRAME_SYNC_SEL; |
| 1066 | } |
| 1067 | |
| 1068 | bank = get_inactive_bank_num(swrm); |
| 1069 | ssp_period = swrm_get_ssp_period(swrm, row, col, frame_sync); |
| 1070 | dev_dbg(swrm->dev, "%s: ssp_period: %d\n", __func__, ssp_period); |
| 1071 | value = ((n_row << SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_SHFT) | |
| 1072 | (n_col << SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_SHFT) | |
| 1073 | ((ssp_period - 1) << SWRM_MCP_FRAME_CTRL_BANK_SSP_PERIOD_SHFT)); |
| 1074 | swr_master_write(swrm, SWRM_MCP_FRAME_CTRL_BANK_ADDR(bank), value); |
| 1075 | enable_bank_switch(swrm, bank, n_row, n_col); |
| 1076 | } |
| 1077 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1078 | static struct swr_port_info *swrm_get_port_req(struct swrm_mports *mport, |
| 1079 | u8 slv_port, u8 dev_num) |
| 1080 | { |
| 1081 | struct swr_port_info *port_req = NULL; |
| 1082 | |
| 1083 | list_for_each_entry(port_req, &mport->port_req_list, list) { |
| 1084 | /* Store dev_id instead of dev_num if enumeration is changed run_time */ |
| 1085 | if ((port_req->slave_port_id == slv_port) |
| 1086 | && (port_req->dev_num == dev_num)) |
| 1087 | return port_req; |
| 1088 | } |
| 1089 | return NULL; |
| 1090 | } |
| 1091 | |
| 1092 | static bool swrm_remove_from_group(struct swr_master *master) |
| 1093 | { |
| 1094 | struct swr_device *swr_dev; |
| 1095 | struct swr_mstr_ctrl *swrm = swr_get_ctrl_data(master); |
| 1096 | bool is_removed = false; |
| 1097 | |
| 1098 | if (!swrm) |
| 1099 | goto end; |
| 1100 | |
| 1101 | mutex_lock(&swrm->mlock); |
| 1102 | if ((swrm->num_rx_chs > 1) && |
| 1103 | (swrm->num_rx_chs == swrm->num_cfg_devs)) { |
| 1104 | list_for_each_entry(swr_dev, &master->devices, |
| 1105 | dev_list) { |
| 1106 | swr_dev->group_id = SWR_GROUP_NONE; |
| 1107 | master->gr_sid = 0; |
| 1108 | } |
| 1109 | is_removed = true; |
| 1110 | } |
| 1111 | mutex_unlock(&swrm->mlock); |
| 1112 | |
| 1113 | end: |
| 1114 | return is_removed; |
| 1115 | } |
| 1116 | |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 1117 | int swrm_get_clk_div_rate(int mclk_freq, int bus_clk_freq) |
| 1118 | { |
| 1119 | if (!bus_clk_freq) |
| 1120 | return mclk_freq; |
| 1121 | |
| 1122 | if (mclk_freq == SWR_CLK_RATE_9P6MHZ) { |
| 1123 | if (bus_clk_freq <= SWR_CLK_RATE_0P6MHZ) |
| 1124 | bus_clk_freq = SWR_CLK_RATE_0P6MHZ; |
| 1125 | else if (bus_clk_freq <= SWR_CLK_RATE_1P2MHZ) |
| 1126 | bus_clk_freq = SWR_CLK_RATE_1P2MHZ; |
| 1127 | else if (bus_clk_freq <= SWR_CLK_RATE_2P4MHZ) |
| 1128 | bus_clk_freq = SWR_CLK_RATE_2P4MHZ; |
| 1129 | else if(bus_clk_freq <= SWR_CLK_RATE_4P8MHZ) |
| 1130 | bus_clk_freq = SWR_CLK_RATE_4P8MHZ; |
| 1131 | else if(bus_clk_freq <= SWR_CLK_RATE_9P6MHZ) |
| 1132 | bus_clk_freq = SWR_CLK_RATE_9P6MHZ; |
| 1133 | } else if (mclk_freq == SWR_CLK_RATE_11P2896MHZ) |
| 1134 | bus_clk_freq = SWR_CLK_RATE_11P2896MHZ; |
| 1135 | |
| 1136 | return bus_clk_freq; |
| 1137 | } |
| 1138 | |
| 1139 | static int swrm_update_bus_clk(struct swr_mstr_ctrl *swrm) |
| 1140 | { |
| 1141 | int ret = 0; |
| 1142 | int agg_clk = 0; |
| 1143 | int i; |
| 1144 | |
| 1145 | for (i = 0; i < SWR_MSTR_PORT_LEN; i++) |
| 1146 | agg_clk += swrm->mport_cfg[i].ch_rate; |
| 1147 | |
| 1148 | if (agg_clk) |
| 1149 | swrm->bus_clk = swrm_get_clk_div_rate(swrm->mclk_freq, |
| 1150 | agg_clk); |
| 1151 | else |
| 1152 | swrm->bus_clk = swrm->mclk_freq; |
| 1153 | |
| 1154 | dev_dbg(swrm->dev, "%s: all_port_clk: %d, bus_clk: %d\n", |
| 1155 | __func__, agg_clk, swrm->bus_clk); |
| 1156 | |
| 1157 | return ret; |
| 1158 | } |
| 1159 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1160 | static void swrm_disable_ports(struct swr_master *master, |
| 1161 | u8 bank) |
| 1162 | { |
| 1163 | u32 value; |
| 1164 | struct swr_port_info *port_req; |
| 1165 | int i; |
| 1166 | struct swrm_mports *mport; |
| 1167 | struct swr_mstr_ctrl *swrm = swr_get_ctrl_data(master); |
| 1168 | |
| 1169 | if (!swrm) { |
| 1170 | pr_err("%s: swrm is null\n", __func__); |
| 1171 | return; |
| 1172 | } |
| 1173 | |
| 1174 | dev_dbg(swrm->dev, "%s: master num_port: %d\n", __func__, |
| 1175 | master->num_port); |
| 1176 | |
| 1177 | |
| 1178 | for (i = 0; i < SWR_MSTR_PORT_LEN ; i++) { |
| 1179 | |
| 1180 | mport = &(swrm->mport_cfg[i]); |
| 1181 | if (!mport->port_en) |
| 1182 | continue; |
| 1183 | |
| 1184 | list_for_each_entry(port_req, &mport->port_req_list, list) { |
| 1185 | /* skip ports with no change req's*/ |
| 1186 | if (port_req->req_ch == port_req->ch_en) |
| 1187 | continue; |
| 1188 | |
| 1189 | swrm_cmd_fifo_wr_cmd(swrm, port_req->req_ch, |
| 1190 | port_req->dev_num, 0x00, |
| 1191 | SWRS_DP_CHANNEL_ENABLE_BANK(port_req->slave_port_id, |
| 1192 | bank)); |
| 1193 | dev_dbg(swrm->dev, "%s: mport :%d, reg: 0x%x\n", |
| 1194 | __func__, i, |
| 1195 | (SWRM_DP_PORT_CTRL_BANK(i + 1, bank))); |
| 1196 | } |
| 1197 | value = ((mport->req_ch) |
| 1198 | << SWRM_DP_PORT_CTRL_EN_CHAN_SHFT); |
| 1199 | value |= ((mport->offset2) |
| 1200 | << SWRM_DP_PORT_CTRL_OFFSET2_SHFT); |
| 1201 | value |= ((mport->offset1) |
| 1202 | << SWRM_DP_PORT_CTRL_OFFSET1_SHFT); |
| 1203 | value |= mport->sinterval; |
| 1204 | |
| 1205 | swr_master_write(swrm, |
| 1206 | SWRM_DP_PORT_CTRL_BANK(i+1, bank), |
| 1207 | value); |
| 1208 | dev_dbg(swrm->dev, "%s: mport :%d, reg: 0x%x, val: 0x%x\n", |
| 1209 | __func__, i, |
| 1210 | (SWRM_DP_PORT_CTRL_BANK(i+1, bank)), value); |
| 1211 | } |
| 1212 | } |
| 1213 | |
| 1214 | static void swrm_cleanup_disabled_port_reqs(struct swr_master *master) |
| 1215 | { |
| 1216 | struct swr_port_info *port_req, *next; |
| 1217 | int i; |
| 1218 | struct swrm_mports *mport; |
| 1219 | struct swr_mstr_ctrl *swrm = swr_get_ctrl_data(master); |
| 1220 | |
| 1221 | if (!swrm) { |
| 1222 | pr_err("%s: swrm is null\n", __func__); |
| 1223 | return; |
| 1224 | } |
| 1225 | dev_dbg(swrm->dev, "%s: master num_port: %d\n", __func__, |
| 1226 | master->num_port); |
| 1227 | |
| 1228 | for (i = 0; i < SWR_MSTR_PORT_LEN; i++) { |
| 1229 | mport = &(swrm->mport_cfg[i]); |
| 1230 | list_for_each_entry_safe(port_req, next, |
| 1231 | &mport->port_req_list, list) { |
| 1232 | /* skip ports without new ch req */ |
| 1233 | if (port_req->ch_en == port_req->req_ch) |
| 1234 | continue; |
| 1235 | |
| 1236 | /* remove new ch req's*/ |
Ramprasad Katkam | c8d52a1 | 2018-08-31 02:30:00 +0530 | [diff] [blame] | 1237 | port_req->ch_en = port_req->req_ch; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1238 | |
| 1239 | /* If no streams enabled on port, remove the port req */ |
| 1240 | if (port_req->ch_en == 0) { |
| 1241 | list_del(&port_req->list); |
| 1242 | kfree(port_req); |
| 1243 | } |
| 1244 | } |
| 1245 | /* remove new ch req's on mport*/ |
Ramprasad Katkam | c8d52a1 | 2018-08-31 02:30:00 +0530 | [diff] [blame] | 1246 | mport->ch_en = mport->req_ch; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1247 | |
| 1248 | if (!(mport->ch_en)) { |
| 1249 | mport->port_en = false; |
| 1250 | master->port_en_mask &= ~i; |
| 1251 | } |
| 1252 | } |
| 1253 | } |
| 1254 | static void swrm_copy_data_port_config(struct swr_master *master, u8 bank) |
| 1255 | { |
| 1256 | u32 value, slv_id; |
| 1257 | struct swr_port_info *port_req; |
| 1258 | int i; |
| 1259 | struct swrm_mports *mport; |
| 1260 | u32 reg[SWRM_MAX_PORT_REG]; |
| 1261 | u32 val[SWRM_MAX_PORT_REG]; |
| 1262 | int len = 0; |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 1263 | u8 hparams; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1264 | struct swr_mstr_ctrl *swrm = swr_get_ctrl_data(master); |
| 1265 | |
| 1266 | if (!swrm) { |
| 1267 | pr_err("%s: swrm is null\n", __func__); |
| 1268 | return; |
| 1269 | } |
| 1270 | |
| 1271 | dev_dbg(swrm->dev, "%s: master num_port: %d\n", __func__, |
| 1272 | master->num_port); |
| 1273 | |
| 1274 | for (i = 0; i < SWR_MSTR_PORT_LEN; i++) { |
| 1275 | mport = &(swrm->mport_cfg[i]); |
| 1276 | if (!mport->port_en) |
| 1277 | continue; |
| 1278 | |
| 1279 | list_for_each_entry(port_req, &mport->port_req_list, list) { |
| 1280 | slv_id = port_req->slave_port_id; |
| 1281 | reg[len] = SWRM_CMD_FIFO_WR_CMD; |
| 1282 | val[len++] = SWR_REG_VAL_PACK(port_req->req_ch, |
| 1283 | port_req->dev_num, 0x00, |
| 1284 | SWRS_DP_CHANNEL_ENABLE_BANK(slv_id, |
| 1285 | bank)); |
| 1286 | |
| 1287 | reg[len] = SWRM_CMD_FIFO_WR_CMD; |
| 1288 | val[len++] = SWR_REG_VAL_PACK(mport->sinterval, |
| 1289 | port_req->dev_num, 0x00, |
| 1290 | SWRS_DP_SAMPLE_CONTROL_1_BANK(slv_id, |
| 1291 | bank)); |
| 1292 | |
| 1293 | reg[len] = SWRM_CMD_FIFO_WR_CMD; |
| 1294 | val[len++] = SWR_REG_VAL_PACK(mport->offset1, |
| 1295 | port_req->dev_num, 0x00, |
| 1296 | SWRS_DP_OFFSET_CONTROL_1_BANK(slv_id, |
| 1297 | bank)); |
| 1298 | |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 1299 | if (mport->offset2 != SWR_INVALID_PARAM) { |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1300 | reg[len] = SWRM_CMD_FIFO_WR_CMD; |
| 1301 | val[len++] = SWR_REG_VAL_PACK(mport->offset2, |
| 1302 | port_req->dev_num, 0x00, |
| 1303 | SWRS_DP_OFFSET_CONTROL_2_BANK( |
| 1304 | slv_id, bank)); |
| 1305 | } |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 1306 | if (mport->hstart != SWR_INVALID_PARAM |
| 1307 | && mport->hstop != SWR_INVALID_PARAM) { |
| 1308 | hparams = (mport->hstart << 4) | mport->hstop; |
| 1309 | |
| 1310 | reg[len] = SWRM_CMD_FIFO_WR_CMD; |
| 1311 | val[len++] = SWR_REG_VAL_PACK(hparams, |
| 1312 | port_req->dev_num, 0x00, |
| 1313 | SWRS_DP_HCONTROL_BANK(slv_id, |
| 1314 | bank)); |
| 1315 | } |
| 1316 | if (mport->word_length != SWR_INVALID_PARAM) { |
| 1317 | reg[len] = SWRM_CMD_FIFO_WR_CMD; |
| 1318 | val[len++] = |
| 1319 | SWR_REG_VAL_PACK(mport->word_length, |
| 1320 | port_req->dev_num, 0x00, |
| 1321 | SWRS_DP_BLOCK_CONTROL_1(slv_id)); |
| 1322 | } |
Ramprasad Katkam | 2a0996b | 2018-09-25 20:13:30 +0530 | [diff] [blame] | 1323 | if (mport->blk_pack_mode != SWR_INVALID_PARAM |
| 1324 | && swrm->master_id != MASTER_ID_WSA) { |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 1325 | reg[len] = SWRM_CMD_FIFO_WR_CMD; |
| 1326 | val[len++] = |
| 1327 | SWR_REG_VAL_PACK(mport->blk_pack_mode, |
| 1328 | port_req->dev_num, 0x00, |
| 1329 | SWRS_DP_BLOCK_CONTROL_3_BANK(slv_id, |
| 1330 | bank)); |
| 1331 | } |
| 1332 | if (mport->blk_grp_count != SWR_INVALID_PARAM) { |
| 1333 | reg[len] = SWRM_CMD_FIFO_WR_CMD; |
| 1334 | val[len++] = |
| 1335 | SWR_REG_VAL_PACK(mport->blk_grp_count, |
| 1336 | port_req->dev_num, 0x00, |
| 1337 | SWRS_DP_BLOCK_CONTROL_2_BANK(slv_id, |
| 1338 | bank)); |
| 1339 | } |
| 1340 | if (mport->lane_ctrl != SWR_INVALID_PARAM) { |
| 1341 | reg[len] = SWRM_CMD_FIFO_WR_CMD; |
| 1342 | val[len++] = |
| 1343 | SWR_REG_VAL_PACK(mport->lane_ctrl, |
| 1344 | port_req->dev_num, 0x00, |
| 1345 | SWRS_DP_LANE_CONTROL_BANK(slv_id, |
| 1346 | bank)); |
| 1347 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1348 | port_req->ch_en = port_req->req_ch; |
| 1349 | } |
| 1350 | value = ((mport->req_ch) |
| 1351 | << SWRM_DP_PORT_CTRL_EN_CHAN_SHFT); |
Ramprasad Katkam | 2a0996b | 2018-09-25 20:13:30 +0530 | [diff] [blame] | 1352 | |
| 1353 | if (mport->offset2 != SWR_INVALID_PARAM) |
| 1354 | value |= ((mport->offset2) |
| 1355 | << SWRM_DP_PORT_CTRL_OFFSET2_SHFT); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1356 | value |= ((mport->offset1) |
| 1357 | << SWRM_DP_PORT_CTRL_OFFSET1_SHFT); |
| 1358 | value |= mport->sinterval; |
| 1359 | |
| 1360 | |
| 1361 | reg[len] = SWRM_DP_PORT_CTRL_BANK(i + 1, bank); |
| 1362 | val[len++] = value; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1363 | dev_dbg(swrm->dev, "%s: mport :%d, reg: 0x%x, val: 0x%x\n", |
| 1364 | __func__, i, |
| 1365 | (SWRM_DP_PORT_CTRL_BANK(i + 1, bank)), value); |
| 1366 | |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 1367 | if (mport->lane_ctrl != SWR_INVALID_PARAM) { |
| 1368 | reg[len] = SWRM_DP_PORT_CTRL_2_BANK(i + 1, bank); |
| 1369 | val[len++] = mport->lane_ctrl; |
| 1370 | } |
| 1371 | if (mport->word_length != SWR_INVALID_PARAM) { |
| 1372 | reg[len] = SWRM_DP_BLOCK_CTRL_1(i + 1); |
| 1373 | val[len++] = mport->word_length; |
| 1374 | } |
| 1375 | |
| 1376 | if (mport->blk_grp_count != SWR_INVALID_PARAM) { |
| 1377 | reg[len] = SWRM_DP_BLOCK_CTRL2_BANK(i + 1, bank); |
| 1378 | val[len++] = mport->blk_grp_count; |
| 1379 | } |
| 1380 | if (mport->hstart != SWR_INVALID_PARAM |
| 1381 | && mport->hstop != SWR_INVALID_PARAM) { |
| 1382 | reg[len] = SWRM_DP_PORT_HCTRL_BANK(i + 1, bank); |
Laxminath Kasam | e30eef7 | 2018-11-05 17:40:09 +0530 | [diff] [blame] | 1383 | hparams = (mport->hstop << 4) | mport->hstart; |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 1384 | val[len++] = hparams; |
Laxminath Kasam | 990c70b | 2018-11-09 23:15:09 +0530 | [diff] [blame] | 1385 | } else { |
| 1386 | reg[len] = SWRM_DP_PORT_HCTRL_BANK(i + 1, bank); |
| 1387 | hparams = (SWR_HSTOP_MAX_VAL << 4) | SWR_HSTART_MIN_VAL; |
| 1388 | val[len++] = hparams; |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 1389 | } |
| 1390 | if (mport->blk_pack_mode != SWR_INVALID_PARAM) { |
| 1391 | reg[len] = SWRM_DP_BLOCK_CTRL3_BANK(i + 1, bank); |
| 1392 | val[len++] = mport->blk_pack_mode; |
| 1393 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1394 | mport->ch_en = mport->req_ch; |
| 1395 | |
| 1396 | } |
Sudheer Papothi | 0016db1 | 2019-06-11 04:42:38 +0530 | [diff] [blame] | 1397 | swrm_reg_dump(swrm, reg, val, len, __func__); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1398 | swr_master_bulk_write(swrm, reg, val, len); |
| 1399 | } |
| 1400 | |
| 1401 | static void swrm_apply_port_config(struct swr_master *master) |
| 1402 | { |
| 1403 | u8 bank; |
| 1404 | struct swr_mstr_ctrl *swrm = swr_get_ctrl_data(master); |
| 1405 | |
| 1406 | if (!swrm) { |
| 1407 | pr_err("%s: Invalid handle to swr controller\n", |
| 1408 | __func__); |
| 1409 | return; |
| 1410 | } |
| 1411 | |
| 1412 | bank = get_inactive_bank_num(swrm); |
| 1413 | dev_dbg(swrm->dev, "%s: enter bank: %d master_ports: %d\n", |
| 1414 | __func__, bank, master->num_port); |
| 1415 | |
Vatsal Bucha | 687f982 | 2020-04-01 18:21:41 +0530 | [diff] [blame] | 1416 | if (!swrm->disable_div2_clk_switch) |
| 1417 | swrm_cmd_fifo_wr_cmd(swrm, 0x01, 0xF, 0x00, |
| 1418 | SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(bank)); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1419 | |
| 1420 | swrm_copy_data_port_config(master, bank); |
| 1421 | } |
| 1422 | |
| 1423 | static int swrm_slvdev_datapath_control(struct swr_master *master, bool enable) |
| 1424 | { |
| 1425 | u8 bank; |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 1426 | u32 value = 0, n_row = 0, n_col = 0; |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 1427 | u32 row = 0, col = 0; |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 1428 | int bus_clk_div_factor; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1429 | int ret; |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 1430 | u8 ssp_period = 0; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1431 | struct swr_mstr_ctrl *swrm = swr_get_ctrl_data(master); |
| 1432 | int mask = (SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_BMSK | |
| 1433 | SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_BMSK | |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 1434 | SWRM_MCP_FRAME_CTRL_BANK_CLK_DIV_VALUE_BMSK | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1435 | SWRM_MCP_FRAME_CTRL_BANK_SSP_PERIOD_BMSK); |
| 1436 | u8 inactive_bank; |
Sudheer Papothi | 8a8b12b | 2019-11-15 23:06:41 +0530 | [diff] [blame] | 1437 | int frame_sync = SWRM_FRAME_SYNC_SEL; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1438 | |
| 1439 | if (!swrm) { |
| 1440 | pr_err("%s: swrm is null\n", __func__); |
| 1441 | return -EFAULT; |
| 1442 | } |
Ramprasad Katkam | 7e35478 | 2018-11-21 15:52:54 +0530 | [diff] [blame] | 1443 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1444 | mutex_lock(&swrm->mlock); |
| 1445 | |
Ramprasad Katkam | 979b7c9 | 2019-05-17 15:31:21 +0530 | [diff] [blame] | 1446 | /* |
| 1447 | * During disable if master is already down, which implies an ssr/pdr |
| 1448 | * scenario, just mark ports as disabled and exit |
| 1449 | */ |
| 1450 | if (swrm->state == SWR_MSTR_SSR && !enable) { |
| 1451 | if (!test_bit(DISABLE_PENDING, &swrm->port_req_pending)) { |
| 1452 | dev_dbg(swrm->dev, "%s:No pending disconn port req\n", |
| 1453 | __func__); |
| 1454 | goto exit; |
| 1455 | } |
| 1456 | clear_bit(DISABLE_PENDING, &swrm->port_req_pending); |
| 1457 | swrm_cleanup_disabled_port_reqs(master); |
| 1458 | if (!swrm_is_port_en(master)) { |
| 1459 | dev_dbg(&master->dev, "%s: pm_runtime auto suspend triggered\n", |
| 1460 | __func__); |
| 1461 | pm_runtime_mark_last_busy(swrm->dev); |
| 1462 | pm_runtime_put_autosuspend(swrm->dev); |
| 1463 | } |
| 1464 | goto exit; |
| 1465 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1466 | bank = get_inactive_bank_num(swrm); |
| 1467 | |
| 1468 | if (enable) { |
Ramprasad Katkam | cab8d72 | 2018-09-28 15:54:06 +0530 | [diff] [blame] | 1469 | if (!test_bit(ENABLE_PENDING, &swrm->port_req_pending)) { |
| 1470 | dev_dbg(swrm->dev, "%s:No pending connect port req\n", |
| 1471 | __func__); |
| 1472 | goto exit; |
| 1473 | } |
| 1474 | clear_bit(ENABLE_PENDING, &swrm->port_req_pending); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1475 | ret = swrm_get_port_config(swrm); |
| 1476 | if (ret) { |
| 1477 | /* cannot accommodate ports */ |
| 1478 | swrm_cleanup_disabled_port_reqs(master); |
| 1479 | mutex_unlock(&swrm->mlock); |
| 1480 | return -EINVAL; |
| 1481 | } |
Ramprasad Katkam | 18bc8e2 | 2018-10-25 15:04:24 +0530 | [diff] [blame] | 1482 | swr_master_write(swrm, SWR_MSTR_RX_SWRM_CPU_INTERRUPT_EN, |
Ramprasad Katkam | 7e35478 | 2018-11-21 15:52:54 +0530 | [diff] [blame] | 1483 | SWRM_INTERRUPT_STATUS_MASK); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1484 | /* apply the new port config*/ |
| 1485 | swrm_apply_port_config(master); |
| 1486 | } else { |
Ramprasad Katkam | cab8d72 | 2018-09-28 15:54:06 +0530 | [diff] [blame] | 1487 | if (!test_bit(DISABLE_PENDING, &swrm->port_req_pending)) { |
| 1488 | dev_dbg(swrm->dev, "%s:No pending disconn port req\n", |
| 1489 | __func__); |
| 1490 | goto exit; |
| 1491 | } |
| 1492 | clear_bit(DISABLE_PENDING, &swrm->port_req_pending); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1493 | swrm_disable_ports(master, bank); |
| 1494 | } |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 1495 | dev_dbg(swrm->dev, "%s: enable: %d, cfg_devs: %d freq %d\n", |
| 1496 | __func__, enable, swrm->num_cfg_devs, swrm->mclk_freq); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1497 | |
| 1498 | if (enable) { |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 1499 | /* set col = 16 */ |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1500 | n_col = SWR_MAX_COL; |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 1501 | col = SWRM_COL_16; |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 1502 | if (swrm->bus_clk == MCLK_FREQ_LP) { |
| 1503 | n_col = SWR_MIN_COL; |
| 1504 | col = SWRM_COL_02; |
| 1505 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1506 | } else { |
| 1507 | /* |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 1508 | * Do not change to col = 2 if there are still active ports |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1509 | */ |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 1510 | if (!master->num_port) { |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1511 | n_col = SWR_MIN_COL; |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 1512 | col = SWRM_COL_02; |
| 1513 | } else { |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1514 | n_col = SWR_MAX_COL; |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 1515 | col = SWRM_COL_16; |
| 1516 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1517 | } |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 1518 | /* Use default 50 * x, frame shape. Change based on mclk */ |
Laxminath Kasam | b0f27cd | 2018-09-06 12:17:11 +0530 | [diff] [blame] | 1519 | if (swrm->mclk_freq == MCLK_FREQ_NATIVE) { |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 1520 | dev_dbg(swrm->dev, "setting 64 x %d frameshape\n", col); |
Laxminath Kasam | b0f27cd | 2018-09-06 12:17:11 +0530 | [diff] [blame] | 1521 | n_row = SWR_ROW_64; |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 1522 | row = SWRM_ROW_64; |
Sudheer Papothi | 8a8b12b | 2019-11-15 23:06:41 +0530 | [diff] [blame] | 1523 | frame_sync = SWRM_FRAME_SYNC_SEL_NATIVE; |
Laxminath Kasam | b0f27cd | 2018-09-06 12:17:11 +0530 | [diff] [blame] | 1524 | } else { |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 1525 | dev_dbg(swrm->dev, "setting 50 x %d frameshape\n", col); |
Laxminath Kasam | b0f27cd | 2018-09-06 12:17:11 +0530 | [diff] [blame] | 1526 | n_row = SWR_ROW_50; |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 1527 | row = SWRM_ROW_50; |
Sudheer Papothi | 8a8b12b | 2019-11-15 23:06:41 +0530 | [diff] [blame] | 1528 | frame_sync = SWRM_FRAME_SYNC_SEL; |
Laxminath Kasam | b0f27cd | 2018-09-06 12:17:11 +0530 | [diff] [blame] | 1529 | } |
Sudheer Papothi | 8a8b12b | 2019-11-15 23:06:41 +0530 | [diff] [blame] | 1530 | ssp_period = swrm_get_ssp_period(swrm, row, col, frame_sync); |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 1531 | bus_clk_div_factor = swrm_get_clk_div(swrm->mclk_freq, swrm->bus_clk); |
| 1532 | dev_dbg(swrm->dev, "%s: ssp_period: %d, bus_clk_div:%d \n", __func__, |
| 1533 | ssp_period, bus_clk_div_factor); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1534 | value = swr_master_read(swrm, SWRM_MCP_FRAME_CTRL_BANK_ADDR(bank)); |
| 1535 | value &= (~mask); |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 1536 | value |= ((n_row << SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_SHFT) | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1537 | (n_col << SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_SHFT) | |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 1538 | (bus_clk_div_factor << |
| 1539 | SWRM_MCP_FRAME_CTRL_BANK_CLK_DIV_VALUE_SHFT) | |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 1540 | ((ssp_period - 1) << SWRM_MCP_FRAME_CTRL_BANK_SSP_PERIOD_SHFT)); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1541 | swr_master_write(swrm, SWRM_MCP_FRAME_CTRL_BANK_ADDR(bank), value); |
| 1542 | |
| 1543 | dev_dbg(swrm->dev, "%s: regaddr: 0x%x, value: 0x%x\n", __func__, |
| 1544 | SWRM_MCP_FRAME_CTRL_BANK_ADDR(bank), value); |
| 1545 | |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 1546 | enable_bank_switch(swrm, bank, n_row, n_col); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1547 | inactive_bank = bank ? 0 : 1; |
| 1548 | |
| 1549 | if (enable) |
| 1550 | swrm_copy_data_port_config(master, inactive_bank); |
| 1551 | else { |
| 1552 | swrm_disable_ports(master, inactive_bank); |
| 1553 | swrm_cleanup_disabled_port_reqs(master); |
Ramprasad Katkam | 7cb4ff6 | 2018-09-12 04:00:26 +0530 | [diff] [blame] | 1554 | } |
| 1555 | if (!swrm_is_port_en(master)) { |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1556 | dev_dbg(&master->dev, "%s: pm_runtime auto suspend triggered\n", |
| 1557 | __func__); |
| 1558 | pm_runtime_mark_last_busy(swrm->dev); |
| 1559 | pm_runtime_put_autosuspend(swrm->dev); |
| 1560 | } |
Ramprasad Katkam | cab8d72 | 2018-09-28 15:54:06 +0530 | [diff] [blame] | 1561 | exit: |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1562 | mutex_unlock(&swrm->mlock); |
| 1563 | return 0; |
| 1564 | } |
| 1565 | |
| 1566 | static int swrm_connect_port(struct swr_master *master, |
| 1567 | struct swr_params *portinfo) |
| 1568 | { |
| 1569 | int i; |
| 1570 | struct swr_port_info *port_req; |
| 1571 | int ret = 0; |
| 1572 | struct swr_mstr_ctrl *swrm = swr_get_ctrl_data(master); |
| 1573 | struct swrm_mports *mport; |
| 1574 | u8 mstr_port_id, mstr_ch_msk; |
| 1575 | |
| 1576 | dev_dbg(&master->dev, "%s: enter\n", __func__); |
| 1577 | if (!portinfo) |
| 1578 | return -EINVAL; |
| 1579 | |
| 1580 | if (!swrm) { |
| 1581 | dev_err(&master->dev, |
| 1582 | "%s: Invalid handle to swr controller\n", |
| 1583 | __func__); |
| 1584 | return -EINVAL; |
| 1585 | } |
| 1586 | |
| 1587 | mutex_lock(&swrm->mlock); |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 1588 | mutex_lock(&swrm->devlock); |
| 1589 | if (!swrm->dev_up) { |
| 1590 | mutex_unlock(&swrm->devlock); |
| 1591 | mutex_unlock(&swrm->mlock); |
| 1592 | return -EINVAL; |
| 1593 | } |
| 1594 | mutex_unlock(&swrm->devlock); |
Ramprasad Katkam | 7cb4ff6 | 2018-09-12 04:00:26 +0530 | [diff] [blame] | 1595 | if (!swrm_is_port_en(master)) |
| 1596 | pm_runtime_get_sync(swrm->dev); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1597 | |
| 1598 | for (i = 0; i < portinfo->num_port; i++) { |
| 1599 | ret = swrm_get_master_port(swrm, &mstr_port_id, &mstr_ch_msk, |
| 1600 | portinfo->port_type[i], |
| 1601 | portinfo->port_id[i]); |
| 1602 | if (ret) { |
| 1603 | dev_err(&master->dev, |
| 1604 | "%s: mstr portid for slv port %d not found\n", |
| 1605 | __func__, portinfo->port_id[i]); |
| 1606 | goto port_fail; |
| 1607 | } |
| 1608 | |
| 1609 | mport = &(swrm->mport_cfg[mstr_port_id]); |
| 1610 | /* get port req */ |
| 1611 | port_req = swrm_get_port_req(mport, portinfo->port_id[i], |
| 1612 | portinfo->dev_num); |
| 1613 | if (!port_req) { |
| 1614 | dev_dbg(&master->dev, "%s: new req:port id %d dev %d\n", |
| 1615 | __func__, portinfo->port_id[i], |
| 1616 | portinfo->dev_num); |
| 1617 | port_req = kzalloc(sizeof(struct swr_port_info), |
| 1618 | GFP_KERNEL); |
| 1619 | if (!port_req) { |
| 1620 | ret = -ENOMEM; |
| 1621 | goto mem_fail; |
| 1622 | } |
| 1623 | port_req->dev_num = portinfo->dev_num; |
| 1624 | port_req->slave_port_id = portinfo->port_id[i]; |
| 1625 | port_req->num_ch = portinfo->num_ch[i]; |
| 1626 | port_req->ch_rate = portinfo->ch_rate[i]; |
| 1627 | port_req->ch_en = 0; |
| 1628 | port_req->master_port_id = mstr_port_id; |
| 1629 | list_add(&port_req->list, &mport->port_req_list); |
| 1630 | } |
| 1631 | port_req->req_ch |= portinfo->ch_en[i]; |
| 1632 | |
| 1633 | dev_dbg(&master->dev, |
| 1634 | "%s: mstr port %d, slv port %d ch_rate %d num_ch %d\n", |
| 1635 | __func__, port_req->master_port_id, |
| 1636 | port_req->slave_port_id, port_req->ch_rate, |
| 1637 | port_req->num_ch); |
| 1638 | /* Put the port req on master port */ |
| 1639 | mport = &(swrm->mport_cfg[mstr_port_id]); |
| 1640 | mport->port_en = true; |
| 1641 | mport->req_ch |= mstr_ch_msk; |
| 1642 | master->port_en_mask |= (1 << mstr_port_id); |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 1643 | if (swrm->clk_stop_mode0_supp && |
| 1644 | (mport->ch_rate < portinfo->ch_rate[i])) { |
| 1645 | mport->ch_rate = portinfo->ch_rate[i]; |
| 1646 | swrm_update_bus_clk(swrm); |
| 1647 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1648 | } |
| 1649 | master->num_port += portinfo->num_port; |
Ramprasad Katkam | cab8d72 | 2018-09-28 15:54:06 +0530 | [diff] [blame] | 1650 | set_bit(ENABLE_PENDING, &swrm->port_req_pending); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1651 | swr_port_response(master, portinfo->tid); |
| 1652 | |
| 1653 | mutex_unlock(&swrm->mlock); |
| 1654 | return 0; |
| 1655 | |
| 1656 | port_fail: |
| 1657 | mem_fail: |
| 1658 | /* cleanup port reqs in error condition */ |
| 1659 | swrm_cleanup_disabled_port_reqs(master); |
| 1660 | mutex_unlock(&swrm->mlock); |
| 1661 | return ret; |
| 1662 | } |
| 1663 | |
| 1664 | static int swrm_disconnect_port(struct swr_master *master, |
| 1665 | struct swr_params *portinfo) |
| 1666 | { |
| 1667 | int i, ret = 0; |
| 1668 | struct swr_port_info *port_req; |
| 1669 | struct swrm_mports *mport; |
| 1670 | struct swr_mstr_ctrl *swrm = swr_get_ctrl_data(master); |
| 1671 | u8 mstr_port_id, mstr_ch_mask; |
| 1672 | |
| 1673 | if (!swrm) { |
| 1674 | dev_err(&master->dev, |
| 1675 | "%s: Invalid handle to swr controller\n", |
| 1676 | __func__); |
| 1677 | return -EINVAL; |
| 1678 | } |
| 1679 | |
| 1680 | if (!portinfo) { |
| 1681 | dev_err(&master->dev, "%s: portinfo is NULL\n", __func__); |
| 1682 | return -EINVAL; |
| 1683 | } |
| 1684 | mutex_lock(&swrm->mlock); |
| 1685 | |
| 1686 | for (i = 0; i < portinfo->num_port; i++) { |
| 1687 | |
| 1688 | ret = swrm_get_master_port(swrm, &mstr_port_id, &mstr_ch_mask, |
| 1689 | portinfo->port_type[i], portinfo->port_id[i]); |
| 1690 | if (ret) { |
| 1691 | dev_err(&master->dev, |
| 1692 | "%s: mstr portid for slv port %d not found\n", |
| 1693 | __func__, portinfo->port_id[i]); |
| 1694 | mutex_unlock(&swrm->mlock); |
| 1695 | return -EINVAL; |
| 1696 | } |
| 1697 | mport = &(swrm->mport_cfg[mstr_port_id]); |
| 1698 | /* get port req */ |
| 1699 | port_req = swrm_get_port_req(mport, portinfo->port_id[i], |
| 1700 | portinfo->dev_num); |
| 1701 | |
| 1702 | if (!port_req) { |
| 1703 | dev_err(&master->dev, "%s:port not enabled : port %d\n", |
| 1704 | __func__, portinfo->port_id[i]); |
Ramprasad Katkam | 86c45e0 | 2018-10-16 19:31:51 +0530 | [diff] [blame] | 1705 | mutex_unlock(&swrm->mlock); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1706 | return -EINVAL; |
| 1707 | } |
| 1708 | port_req->req_ch &= ~portinfo->ch_en[i]; |
| 1709 | mport->req_ch &= ~mstr_ch_mask; |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 1710 | if (swrm->clk_stop_mode0_supp && !mport->req_ch) { |
| 1711 | mport->ch_rate = 0; |
| 1712 | swrm_update_bus_clk(swrm); |
| 1713 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1714 | } |
| 1715 | master->num_port -= portinfo->num_port; |
Ramprasad Katkam | cab8d72 | 2018-09-28 15:54:06 +0530 | [diff] [blame] | 1716 | set_bit(DISABLE_PENDING, &swrm->port_req_pending); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1717 | swr_port_response(master, portinfo->tid); |
| 1718 | mutex_unlock(&swrm->mlock); |
| 1719 | |
| 1720 | return 0; |
| 1721 | } |
| 1722 | |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 1723 | static int swrm_find_alert_slave(struct swr_mstr_ctrl *swrm, |
| 1724 | int status, u8 *devnum) |
| 1725 | { |
| 1726 | int i; |
| 1727 | bool found = false; |
| 1728 | |
| 1729 | for (i = 0; i < (swrm->master.num_dev + 1); i++) { |
| 1730 | if ((status & SWRM_MCP_SLV_STATUS_MASK) == SWR_ALERT) { |
| 1731 | *devnum = i; |
| 1732 | found = true; |
| 1733 | break; |
| 1734 | } |
| 1735 | status >>= 2; |
| 1736 | } |
| 1737 | if (found) |
| 1738 | return 0; |
| 1739 | else |
| 1740 | return -EINVAL; |
| 1741 | } |
| 1742 | |
Sudheer Papothi | 07d5afc | 2019-07-17 06:25:45 +0530 | [diff] [blame] | 1743 | static void swrm_enable_slave_irq(struct swr_mstr_ctrl *swrm) |
| 1744 | { |
| 1745 | int i; |
| 1746 | int status = 0; |
Vatsal Bucha | 908583f | 2020-08-04 07:46:05 +0530 | [diff] [blame] | 1747 | u32 temp; |
Sudheer Papothi | 07d5afc | 2019-07-17 06:25:45 +0530 | [diff] [blame] | 1748 | |
| 1749 | status = swr_master_read(swrm, SWRM_MCP_SLV_STATUS); |
| 1750 | if (!status) { |
| 1751 | dev_dbg_ratelimited(swrm->dev, "%s: slaves status is 0x%x\n", |
| 1752 | __func__, status); |
| 1753 | return; |
| 1754 | } |
| 1755 | dev_dbg(swrm->dev, "%s: slave status: 0x%x\n", __func__, status); |
| 1756 | for (i = 0; i < (swrm->master.num_dev + 1); i++) { |
Vatsal Bucha | 21ba077 | 2020-02-28 20:36:46 +0530 | [diff] [blame] | 1757 | if (status & SWRM_MCP_SLV_STATUS_MASK) { |
Vatsal Bucha | 27e8e9b | 2020-12-30 19:05:37 +0530 | [diff] [blame^] | 1758 | if (!swrm->clk_stop_wakeup) { |
| 1759 | swrm_cmd_fifo_rd_cmd(swrm, &temp, i, 0x0, |
Vatsal Bucha | 908583f | 2020-08-04 07:46:05 +0530 | [diff] [blame] | 1760 | SWRS_SCP_INT_STATUS_CLEAR_1, 1); |
Vatsal Bucha | 27e8e9b | 2020-12-30 19:05:37 +0530 | [diff] [blame^] | 1761 | swrm_cmd_fifo_wr_cmd(swrm, 0xFF, i, 0x0, |
Vatsal Bucha | 21ba077 | 2020-02-28 20:36:46 +0530 | [diff] [blame] | 1762 | SWRS_SCP_INT_STATUS_CLEAR_1); |
Vatsal Bucha | 27e8e9b | 2020-12-30 19:05:37 +0530 | [diff] [blame^] | 1763 | } |
Sudheer Papothi | 07d5afc | 2019-07-17 06:25:45 +0530 | [diff] [blame] | 1764 | swrm_cmd_fifo_wr_cmd(swrm, 0x4, i, 0x0, |
Vatsal Bucha | 21ba077 | 2020-02-28 20:36:46 +0530 | [diff] [blame] | 1765 | SWRS_SCP_INT_STATUS_MASK_1); |
| 1766 | } |
Sudheer Papothi | 07d5afc | 2019-07-17 06:25:45 +0530 | [diff] [blame] | 1767 | status >>= 2; |
| 1768 | } |
| 1769 | } |
| 1770 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1771 | static int swrm_check_slave_change_status(struct swr_mstr_ctrl *swrm, |
| 1772 | int status, u8 *devnum) |
| 1773 | { |
| 1774 | int i; |
| 1775 | int new_sts = status; |
| 1776 | int ret = SWR_NOT_PRESENT; |
| 1777 | |
| 1778 | if (status != swrm->slave_status) { |
| 1779 | for (i = 0; i < (swrm->master.num_dev + 1); i++) { |
| 1780 | if ((status & SWRM_MCP_SLV_STATUS_MASK) != |
| 1781 | (swrm->slave_status & SWRM_MCP_SLV_STATUS_MASK)) { |
| 1782 | ret = (status & SWRM_MCP_SLV_STATUS_MASK); |
| 1783 | *devnum = i; |
| 1784 | break; |
| 1785 | } |
| 1786 | status >>= 2; |
| 1787 | swrm->slave_status >>= 2; |
| 1788 | } |
| 1789 | swrm->slave_status = new_sts; |
| 1790 | } |
| 1791 | return ret; |
| 1792 | } |
| 1793 | |
| 1794 | static irqreturn_t swr_mstr_interrupt(int irq, void *dev) |
| 1795 | { |
| 1796 | struct swr_mstr_ctrl *swrm = dev; |
Ramprasad Katkam | 7e35478 | 2018-11-21 15:52:54 +0530 | [diff] [blame] | 1797 | u32 value, intr_sts, intr_sts_masked; |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 1798 | u32 temp = 0; |
| 1799 | u32 status, chg_sts, i; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1800 | u8 devnum = 0; |
| 1801 | int ret = IRQ_HANDLED; |
| 1802 | struct swr_device *swr_dev; |
| 1803 | struct swr_master *mstr = &swrm->master; |
| 1804 | |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 1805 | trace_printk("%s enter\n", __func__); |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 1806 | if (unlikely(swrm_lock_sleep(swrm) == false)) { |
| 1807 | dev_err(swrm->dev, "%s Failed to hold suspend\n", __func__); |
| 1808 | return IRQ_NONE; |
| 1809 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1810 | |
| 1811 | mutex_lock(&swrm->reslock); |
Aditya Bavanari | f4a471d | 2019-02-19 17:57:12 +0530 | [diff] [blame] | 1812 | if (swrm_clk_request(swrm, true)) { |
Ramprasad Katkam | 14efed6 | 2019-03-07 13:16:50 +0530 | [diff] [blame] | 1813 | dev_err_ratelimited(swrm->dev, "%s:clk request failed\n", |
| 1814 | __func__); |
Aditya Bavanari | f4a471d | 2019-02-19 17:57:12 +0530 | [diff] [blame] | 1815 | mutex_unlock(&swrm->reslock); |
| 1816 | goto exit; |
| 1817 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1818 | mutex_unlock(&swrm->reslock); |
| 1819 | |
| 1820 | intr_sts = swr_master_read(swrm, SWRM_INTERRUPT_STATUS); |
Ramprasad Katkam | 7e35478 | 2018-11-21 15:52:54 +0530 | [diff] [blame] | 1821 | intr_sts_masked = intr_sts & swrm->intr_mask; |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 1822 | |
| 1823 | trace_printk("%s: status: 0x%x \n", __func__, intr_sts_masked); |
Ramprasad Katkam | 8330351 | 2018-10-11 17:34:22 +0530 | [diff] [blame] | 1824 | handle_irq: |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1825 | for (i = 0; i < SWRM_INTERRUPT_MAX; i++) { |
Ramprasad Katkam | 7e35478 | 2018-11-21 15:52:54 +0530 | [diff] [blame] | 1826 | value = intr_sts_masked & (1 << i); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1827 | if (!value) |
| 1828 | continue; |
| 1829 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1830 | switch (value) { |
| 1831 | case SWRM_INTERRUPT_STATUS_SLAVE_PEND_IRQ: |
| 1832 | dev_dbg(swrm->dev, "Trigger irq to slave device\n"); |
| 1833 | status = swr_master_read(swrm, SWRM_MCP_SLV_STATUS); |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 1834 | ret = swrm_find_alert_slave(swrm, status, &devnum); |
| 1835 | if (ret) { |
Ramprasad Katkam | 18bc8e2 | 2018-10-25 15:04:24 +0530 | [diff] [blame] | 1836 | dev_err_ratelimited(swrm->dev, |
| 1837 | "no slave alert found.spurious interrupt\n"); |
Ramprasad Katkam | 48b49b2 | 2018-10-01 20:12:46 +0530 | [diff] [blame] | 1838 | break; |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 1839 | } |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 1840 | swrm_cmd_fifo_rd_cmd(swrm, &temp, devnum, 0x0, |
| 1841 | SWRS_SCP_INT_STATUS_CLEAR_1, 1); |
| 1842 | swrm_cmd_fifo_wr_cmd(swrm, 0x4, devnum, 0x0, |
| 1843 | SWRS_SCP_INT_STATUS_CLEAR_1); |
| 1844 | swrm_cmd_fifo_wr_cmd(swrm, 0x0, devnum, 0x0, |
| 1845 | SWRS_SCP_INT_STATUS_CLEAR_1); |
Ramprasad Katkam | 62d6d76 | 2018-09-20 17:50:28 +0530 | [diff] [blame] | 1846 | |
| 1847 | |
| 1848 | list_for_each_entry(swr_dev, &mstr->devices, dev_list) { |
| 1849 | if (swr_dev->dev_num != devnum) |
| 1850 | continue; |
| 1851 | if (swr_dev->slave_irq) { |
| 1852 | do { |
Ramprasad Katkam | 2586a4b | 2019-03-18 16:53:39 +0530 | [diff] [blame] | 1853 | swr_dev->slave_irq_pending = 0; |
Ramprasad Katkam | 62d6d76 | 2018-09-20 17:50:28 +0530 | [diff] [blame] | 1854 | handle_nested_irq( |
| 1855 | irq_find_mapping( |
| 1856 | swr_dev->slave_irq, 0)); |
| 1857 | } while (swr_dev->slave_irq_pending); |
| 1858 | } |
| 1859 | |
| 1860 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1861 | break; |
| 1862 | case SWRM_INTERRUPT_STATUS_NEW_SLAVE_ATTACHED: |
| 1863 | dev_dbg(swrm->dev, "SWR new slave attached\n"); |
| 1864 | break; |
| 1865 | case SWRM_INTERRUPT_STATUS_CHANGE_ENUM_SLAVE_STATUS: |
| 1866 | status = swr_master_read(swrm, SWRM_MCP_SLV_STATUS); |
| 1867 | if (status == swrm->slave_status) { |
| 1868 | dev_dbg(swrm->dev, |
| 1869 | "%s: No change in slave status: %d\n", |
| 1870 | __func__, status); |
| 1871 | break; |
| 1872 | } |
| 1873 | chg_sts = swrm_check_slave_change_status(swrm, status, |
| 1874 | &devnum); |
| 1875 | switch (chg_sts) { |
| 1876 | case SWR_NOT_PRESENT: |
| 1877 | dev_dbg(swrm->dev, "device %d got detached\n", |
| 1878 | devnum); |
| 1879 | break; |
| 1880 | case SWR_ATTACHED_OK: |
| 1881 | dev_dbg(swrm->dev, "device %d got attached\n", |
| 1882 | devnum); |
Ramprasad Katkam | debe893 | 2018-09-25 18:08:18 +0530 | [diff] [blame] | 1883 | /* enable host irq from slave device*/ |
| 1884 | swrm_cmd_fifo_wr_cmd(swrm, 0xFF, devnum, 0x0, |
| 1885 | SWRS_SCP_INT_STATUS_CLEAR_1); |
| 1886 | swrm_cmd_fifo_wr_cmd(swrm, 0x4, devnum, 0x0, |
| 1887 | SWRS_SCP_INT_STATUS_MASK_1); |
| 1888 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1889 | break; |
| 1890 | case SWR_ALERT: |
| 1891 | dev_dbg(swrm->dev, |
| 1892 | "device %d has pending interrupt\n", |
| 1893 | devnum); |
| 1894 | break; |
| 1895 | } |
| 1896 | break; |
| 1897 | case SWRM_INTERRUPT_STATUS_MASTER_CLASH_DET: |
| 1898 | dev_err_ratelimited(swrm->dev, |
| 1899 | "SWR bus clsh detected\n"); |
| 1900 | break; |
| 1901 | case SWRM_INTERRUPT_STATUS_RD_FIFO_OVERFLOW: |
| 1902 | dev_dbg(swrm->dev, "SWR read FIFO overflow\n"); |
| 1903 | break; |
| 1904 | case SWRM_INTERRUPT_STATUS_RD_FIFO_UNDERFLOW: |
| 1905 | dev_dbg(swrm->dev, "SWR read FIFO underflow\n"); |
| 1906 | break; |
| 1907 | case SWRM_INTERRUPT_STATUS_WR_CMD_FIFO_OVERFLOW: |
| 1908 | dev_dbg(swrm->dev, "SWR write FIFO overflow\n"); |
| 1909 | break; |
| 1910 | case SWRM_INTERRUPT_STATUS_CMD_ERROR: |
| 1911 | value = swr_master_read(swrm, SWRM_CMD_FIFO_STATUS); |
| 1912 | dev_err_ratelimited(swrm->dev, |
| 1913 | "SWR CMD error, fifo status 0x%x, flushing fifo\n", |
| 1914 | value); |
| 1915 | swr_master_write(swrm, SWRM_CMD_FIFO_CMD, 0x1); |
| 1916 | break; |
| 1917 | case SWRM_INTERRUPT_STATUS_DOUT_PORT_COLLISION: |
Ramprasad Katkam | 18bc8e2 | 2018-10-25 15:04:24 +0530 | [diff] [blame] | 1918 | dev_err_ratelimited(swrm->dev, "SWR Port collision detected\n"); |
Ramprasad Katkam | 7e35478 | 2018-11-21 15:52:54 +0530 | [diff] [blame] | 1919 | swrm->intr_mask &= ~SWRM_INTERRUPT_STATUS_DOUT_PORT_COLLISION; |
Ramprasad Katkam | 18bc8e2 | 2018-10-25 15:04:24 +0530 | [diff] [blame] | 1920 | swr_master_write(swrm, |
Ramprasad Katkam | 7e35478 | 2018-11-21 15:52:54 +0530 | [diff] [blame] | 1921 | SWR_MSTR_RX_SWRM_CPU_INTERRUPT_EN, swrm->intr_mask); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1922 | break; |
| 1923 | case SWRM_INTERRUPT_STATUS_READ_EN_RD_VALID_MISMATCH: |
| 1924 | dev_dbg(swrm->dev, "SWR read enable valid mismatch\n"); |
Ramprasad Katkam | 7e35478 | 2018-11-21 15:52:54 +0530 | [diff] [blame] | 1925 | swrm->intr_mask &= |
Ramprasad Katkam | 18bc8e2 | 2018-10-25 15:04:24 +0530 | [diff] [blame] | 1926 | ~SWRM_INTERRUPT_STATUS_READ_EN_RD_VALID_MISMATCH; |
| 1927 | swr_master_write(swrm, |
Ramprasad Katkam | 7e35478 | 2018-11-21 15:52:54 +0530 | [diff] [blame] | 1928 | SWR_MSTR_RX_SWRM_CPU_INTERRUPT_EN, swrm->intr_mask); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1929 | break; |
| 1930 | case SWRM_INTERRUPT_STATUS_SPECIAL_CMD_ID_FINISHED: |
| 1931 | complete(&swrm->broadcast); |
| 1932 | dev_dbg(swrm->dev, "SWR cmd id finished\n"); |
| 1933 | break; |
| 1934 | case SWRM_INTERRUPT_STATUS_NEW_SLAVE_AUTO_ENUM_FINISHED: |
| 1935 | break; |
| 1936 | case SWRM_INTERRUPT_STATUS_AUTO_ENUM_FAILED: |
| 1937 | break; |
| 1938 | case SWRM_INTERRUPT_STATUS_AUTO_ENUM_TABLE_IS_FULL: |
| 1939 | break; |
| 1940 | case SWRM_INTERRUPT_STATUS_BUS_RESET_FINISHED: |
| 1941 | complete(&swrm->reset); |
| 1942 | break; |
| 1943 | case SWRM_INTERRUPT_STATUS_CLK_STOP_FINISHED: |
| 1944 | break; |
| 1945 | default: |
| 1946 | dev_err_ratelimited(swrm->dev, |
| 1947 | "SWR unknown interrupt\n"); |
| 1948 | ret = IRQ_NONE; |
| 1949 | break; |
| 1950 | } |
| 1951 | } |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 1952 | swr_master_write(swrm, SWRM_INTERRUPT_CLEAR, intr_sts); |
| 1953 | swr_master_write(swrm, SWRM_INTERRUPT_CLEAR, 0x0); |
Ramprasad Katkam | 8330351 | 2018-10-11 17:34:22 +0530 | [diff] [blame] | 1954 | |
| 1955 | intr_sts = swr_master_read(swrm, SWRM_INTERRUPT_STATUS); |
Ramprasad Katkam | 7e35478 | 2018-11-21 15:52:54 +0530 | [diff] [blame] | 1956 | intr_sts_masked = intr_sts & swrm->intr_mask; |
Ramprasad Katkam | 8330351 | 2018-10-11 17:34:22 +0530 | [diff] [blame] | 1957 | |
Ramprasad Katkam | 7e35478 | 2018-11-21 15:52:54 +0530 | [diff] [blame] | 1958 | if (intr_sts_masked) { |
Ramprasad Katkam | 8330351 | 2018-10-11 17:34:22 +0530 | [diff] [blame] | 1959 | dev_dbg(swrm->dev, "%s: new interrupt received\n", __func__); |
| 1960 | goto handle_irq; |
| 1961 | } |
| 1962 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1963 | mutex_lock(&swrm->reslock); |
| 1964 | swrm_clk_request(swrm, false); |
| 1965 | mutex_unlock(&swrm->reslock); |
Aditya Bavanari | f4a471d | 2019-02-19 17:57:12 +0530 | [diff] [blame] | 1966 | exit: |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 1967 | swrm_unlock_sleep(swrm); |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 1968 | trace_printk("%s exit\n", __func__); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 1969 | return ret; |
| 1970 | } |
| 1971 | |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 1972 | static irqreturn_t swr_mstr_interrupt_v2(int irq, void *dev) |
| 1973 | { |
| 1974 | struct swr_mstr_ctrl *swrm = dev; |
| 1975 | u32 value, intr_sts, intr_sts_masked; |
| 1976 | u32 temp = 0; |
| 1977 | u32 status, chg_sts, i; |
| 1978 | u8 devnum = 0; |
| 1979 | int ret = IRQ_HANDLED; |
| 1980 | struct swr_device *swr_dev; |
| 1981 | struct swr_master *mstr = &swrm->master; |
| 1982 | |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 1983 | trace_printk("%s enter\n", __func__); |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 1984 | if (unlikely(swrm_lock_sleep(swrm) == false)) { |
| 1985 | dev_err(swrm->dev, "%s Failed to hold suspend\n", __func__); |
| 1986 | return IRQ_NONE; |
| 1987 | } |
| 1988 | |
| 1989 | mutex_lock(&swrm->reslock); |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 1990 | if (swrm_request_hw_vote(swrm, LPASS_HW_CORE, true)) { |
| 1991 | ret = IRQ_NONE; |
| 1992 | goto exit; |
| 1993 | } |
| 1994 | if (swrm_request_hw_vote(swrm, LPASS_AUDIO_CORE, true)) { |
| 1995 | ret = IRQ_NONE; |
Sudheer Papothi | 06f4341 | 2019-07-09 03:32:54 +0530 | [diff] [blame] | 1996 | goto err_audio_hw_vote; |
Karthikeyan Mani | 035c50b | 2019-05-02 13:35:01 -0700 | [diff] [blame] | 1997 | } |
Karthikeyan Mani | 4bee1db | 2019-09-18 17:58:41 -0700 | [diff] [blame] | 1998 | ret = swrm_clk_request(swrm, true); |
| 1999 | if (ret) { |
| 2000 | dev_err(dev, "%s: swrm clk failed\n", __func__); |
| 2001 | ret = IRQ_NONE; |
| 2002 | goto err_audio_core_vote; |
| 2003 | } |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2004 | mutex_unlock(&swrm->reslock); |
| 2005 | |
| 2006 | intr_sts = swr_master_read(swrm, SWRM_INTERRUPT_STATUS); |
| 2007 | intr_sts_masked = intr_sts & swrm->intr_mask; |
Sudheer Papothi | 06f4341 | 2019-07-09 03:32:54 +0530 | [diff] [blame] | 2008 | |
| 2009 | dev_dbg(swrm->dev, "%s: status: 0x%x \n", __func__, intr_sts_masked); |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 2010 | trace_printk("%s: status: 0x%x \n", __func__, intr_sts_masked); |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2011 | handle_irq: |
| 2012 | for (i = 0; i < SWRM_INTERRUPT_MAX; i++) { |
| 2013 | value = intr_sts_masked & (1 << i); |
| 2014 | if (!value) |
| 2015 | continue; |
| 2016 | |
| 2017 | switch (value) { |
| 2018 | case SWRM_INTERRUPT_STATUS_SLAVE_PEND_IRQ: |
| 2019 | dev_dbg(swrm->dev, "%s: Trigger irq to slave device\n", |
| 2020 | __func__); |
| 2021 | status = swr_master_read(swrm, SWRM_MCP_SLV_STATUS); |
| 2022 | ret = swrm_find_alert_slave(swrm, status, &devnum); |
| 2023 | if (ret) { |
| 2024 | dev_err_ratelimited(swrm->dev, |
| 2025 | "%s: no slave alert found.spurious interrupt\n", |
| 2026 | __func__); |
| 2027 | break; |
| 2028 | } |
| 2029 | swrm_cmd_fifo_rd_cmd(swrm, &temp, devnum, 0x0, |
| 2030 | SWRS_SCP_INT_STATUS_CLEAR_1, 1); |
| 2031 | swrm_cmd_fifo_wr_cmd(swrm, 0x4, devnum, 0x0, |
| 2032 | SWRS_SCP_INT_STATUS_CLEAR_1); |
| 2033 | swrm_cmd_fifo_wr_cmd(swrm, 0x0, devnum, 0x0, |
| 2034 | SWRS_SCP_INT_STATUS_CLEAR_1); |
| 2035 | |
| 2036 | |
| 2037 | list_for_each_entry(swr_dev, &mstr->devices, dev_list) { |
| 2038 | if (swr_dev->dev_num != devnum) |
| 2039 | continue; |
| 2040 | if (swr_dev->slave_irq) { |
| 2041 | do { |
Meng Wang | 31a7ef1 | 2019-12-18 10:36:29 +0800 | [diff] [blame] | 2042 | swr_dev->slave_irq_pending = 0; |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2043 | handle_nested_irq( |
| 2044 | irq_find_mapping( |
| 2045 | swr_dev->slave_irq, 0)); |
| 2046 | } while (swr_dev->slave_irq_pending); |
| 2047 | } |
| 2048 | |
| 2049 | } |
| 2050 | break; |
| 2051 | case SWRM_INTERRUPT_STATUS_NEW_SLAVE_ATTACHED: |
| 2052 | dev_dbg(swrm->dev, "%s: SWR new slave attached\n", |
| 2053 | __func__); |
| 2054 | break; |
| 2055 | case SWRM_INTERRUPT_STATUS_CHANGE_ENUM_SLAVE_STATUS: |
| 2056 | status = swr_master_read(swrm, SWRM_MCP_SLV_STATUS); |
Laxminath Kasam | 44cedb8 | 2019-11-20 17:37:23 +0530 | [diff] [blame] | 2057 | swrm_enable_slave_irq(swrm); |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2058 | if (status == swrm->slave_status) { |
| 2059 | dev_dbg(swrm->dev, |
| 2060 | "%s: No change in slave status: %d\n", |
| 2061 | __func__, status); |
| 2062 | break; |
| 2063 | } |
| 2064 | chg_sts = swrm_check_slave_change_status(swrm, status, |
| 2065 | &devnum); |
| 2066 | switch (chg_sts) { |
| 2067 | case SWR_NOT_PRESENT: |
| 2068 | dev_dbg(swrm->dev, |
| 2069 | "%s: device %d got detached\n", |
| 2070 | __func__, devnum); |
Vatsal Bucha | 21ba077 | 2020-02-28 20:36:46 +0530 | [diff] [blame] | 2071 | if (devnum == 0) { |
| 2072 | /* |
| 2073 | * enable host irq if device 0 detached |
| 2074 | * as hw will mask host_irq at slave |
| 2075 | * but will not unmask it afterwards. |
| 2076 | */ |
Vatsal Bucha | 908583f | 2020-08-04 07:46:05 +0530 | [diff] [blame] | 2077 | swrm->enable_slave_irq = true; |
Vatsal Bucha | 21ba077 | 2020-02-28 20:36:46 +0530 | [diff] [blame] | 2078 | } |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2079 | break; |
| 2080 | case SWR_ATTACHED_OK: |
| 2081 | dev_dbg(swrm->dev, |
| 2082 | "%s: device %d got attached\n", |
| 2083 | __func__, devnum); |
| 2084 | /* enable host irq from slave device*/ |
Vatsal Bucha | 908583f | 2020-08-04 07:46:05 +0530 | [diff] [blame] | 2085 | swrm->enable_slave_irq = true; |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2086 | break; |
| 2087 | case SWR_ALERT: |
| 2088 | dev_dbg(swrm->dev, |
| 2089 | "%s: device %d has pending interrupt\n", |
| 2090 | __func__, devnum); |
| 2091 | break; |
| 2092 | } |
| 2093 | break; |
| 2094 | case SWRM_INTERRUPT_STATUS_MASTER_CLASH_DET: |
| 2095 | dev_err_ratelimited(swrm->dev, |
| 2096 | "%s: SWR bus clsh detected\n", |
| 2097 | __func__); |
Aditya Bavanari | f0106d9 | 2020-01-31 17:01:21 +0530 | [diff] [blame] | 2098 | swrm->intr_mask &= |
| 2099 | ~SWRM_INTERRUPT_STATUS_MASTER_CLASH_DET; |
| 2100 | swr_master_write(swrm, |
| 2101 | SWR_MSTR_RX_SWRM_CPU_INTERRUPT_EN, |
| 2102 | swrm->intr_mask); |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2103 | break; |
| 2104 | case SWRM_INTERRUPT_STATUS_RD_FIFO_OVERFLOW: |
Vatsal Bucha | bd68a7c | 2020-06-08 10:41:56 +0530 | [diff] [blame] | 2105 | value = swr_master_read(swrm, SWRM_CMD_FIFO_STATUS); |
| 2106 | dev_err(swrm->dev, |
| 2107 | "%s: SWR read FIFO overflow fifo status 0x%x\n", |
| 2108 | __func__, value); |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2109 | break; |
| 2110 | case SWRM_INTERRUPT_STATUS_RD_FIFO_UNDERFLOW: |
Vatsal Bucha | bd68a7c | 2020-06-08 10:41:56 +0530 | [diff] [blame] | 2111 | value = swr_master_read(swrm, SWRM_CMD_FIFO_STATUS); |
| 2112 | dev_err(swrm->dev, |
| 2113 | "%s: SWR read FIFO underflow fifo status 0x%x\n", |
| 2114 | __func__, value); |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2115 | break; |
| 2116 | case SWRM_INTERRUPT_STATUS_WR_CMD_FIFO_OVERFLOW: |
Vatsal Bucha | bd68a7c | 2020-06-08 10:41:56 +0530 | [diff] [blame] | 2117 | value = swr_master_read(swrm, SWRM_CMD_FIFO_STATUS); |
| 2118 | dev_err(swrm->dev, |
| 2119 | "%s: SWR write FIFO overflow fifo status %x\n", |
| 2120 | __func__, value); |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 2121 | swr_master_write(swrm, SWRM_CMD_FIFO_CMD, 0x1); |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2122 | break; |
| 2123 | case SWRM_INTERRUPT_STATUS_CMD_ERROR: |
| 2124 | value = swr_master_read(swrm, SWRM_CMD_FIFO_STATUS); |
| 2125 | dev_err_ratelimited(swrm->dev, |
| 2126 | "%s: SWR CMD error, fifo status 0x%x, flushing fifo\n", |
| 2127 | __func__, value); |
| 2128 | swr_master_write(swrm, SWRM_CMD_FIFO_CMD, 0x1); |
| 2129 | break; |
| 2130 | case SWRM_INTERRUPT_STATUS_DOUT_PORT_COLLISION: |
| 2131 | dev_err_ratelimited(swrm->dev, |
| 2132 | "%s: SWR Port collision detected\n", |
| 2133 | __func__); |
| 2134 | swrm->intr_mask &= ~SWRM_INTERRUPT_STATUS_DOUT_PORT_COLLISION; |
| 2135 | swr_master_write(swrm, |
| 2136 | SWR_MSTR_RX_SWRM_CPU_INTERRUPT_EN, swrm->intr_mask); |
| 2137 | break; |
| 2138 | case SWRM_INTERRUPT_STATUS_READ_EN_RD_VALID_MISMATCH: |
| 2139 | dev_dbg(swrm->dev, |
| 2140 | "%s: SWR read enable valid mismatch\n", |
| 2141 | __func__); |
| 2142 | swrm->intr_mask &= |
| 2143 | ~SWRM_INTERRUPT_STATUS_READ_EN_RD_VALID_MISMATCH; |
| 2144 | swr_master_write(swrm, |
| 2145 | SWR_MSTR_RX_SWRM_CPU_INTERRUPT_EN, swrm->intr_mask); |
| 2146 | break; |
| 2147 | case SWRM_INTERRUPT_STATUS_SPECIAL_CMD_ID_FINISHED: |
| 2148 | complete(&swrm->broadcast); |
| 2149 | dev_dbg(swrm->dev, "%s: SWR cmd id finished\n", |
| 2150 | __func__); |
| 2151 | break; |
| 2152 | case SWRM_INTERRUPT_STATUS_AUTO_ENUM_FAILED_V2: |
| 2153 | break; |
| 2154 | case SWRM_INTERRUPT_STATUS_AUTO_ENUM_TABLE_IS_FULL_V2: |
| 2155 | break; |
| 2156 | case SWRM_INTERRUPT_STATUS_BUS_RESET_FINISHED_V2: |
Laxminath Kasam | e229197 | 2019-11-08 14:51:59 +0530 | [diff] [blame] | 2157 | swrm_check_link_status(swrm, 0x1); |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2158 | break; |
| 2159 | case SWRM_INTERRUPT_STATUS_CLK_STOP_FINISHED_V2: |
| 2160 | break; |
| 2161 | case SWRM_INTERRUPT_STATUS_EXT_CLK_STOP_WAKEUP: |
Vatsal Bucha | ec0d9f5 | 2020-08-12 09:42:46 +0530 | [diff] [blame] | 2162 | if (swrm->state == SWR_MSTR_UP) { |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2163 | dev_dbg(swrm->dev, |
| 2164 | "%s:SWR Master is already up\n", |
| 2165 | __func__); |
Vatsal Bucha | ec0d9f5 | 2020-08-12 09:42:46 +0530 | [diff] [blame] | 2166 | } else { |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2167 | dev_err_ratelimited(swrm->dev, |
| 2168 | "%s: SWR wokeup during clock stop\n", |
| 2169 | __func__); |
Vatsal Bucha | ec0d9f5 | 2020-08-12 09:42:46 +0530 | [diff] [blame] | 2170 | /* It might be possible the slave device gets |
| 2171 | * reset and slave interrupt gets missed. So |
| 2172 | * re-enable Host IRQ and process slave pending |
| 2173 | * interrupts, if any. |
| 2174 | */ |
Vatsal Bucha | 27e8e9b | 2020-12-30 19:05:37 +0530 | [diff] [blame^] | 2175 | swrm->clk_stop_wakeup = true; |
Vatsal Bucha | ec0d9f5 | 2020-08-12 09:42:46 +0530 | [diff] [blame] | 2176 | swrm_enable_slave_irq(swrm); |
Vatsal Bucha | 27e8e9b | 2020-12-30 19:05:37 +0530 | [diff] [blame^] | 2177 | swrm->clk_stop_wakeup = false; |
Vatsal Bucha | ec0d9f5 | 2020-08-12 09:42:46 +0530 | [diff] [blame] | 2178 | } |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2179 | break; |
| 2180 | default: |
| 2181 | dev_err_ratelimited(swrm->dev, |
| 2182 | "%s: SWR unknown interrupt value: %d\n", |
| 2183 | __func__, value); |
| 2184 | ret = IRQ_NONE; |
| 2185 | break; |
| 2186 | } |
| 2187 | } |
| 2188 | swr_master_write(swrm, SWRM_INTERRUPT_CLEAR, intr_sts); |
| 2189 | swr_master_write(swrm, SWRM_INTERRUPT_CLEAR, 0x0); |
| 2190 | |
Vatsal Bucha | 908583f | 2020-08-04 07:46:05 +0530 | [diff] [blame] | 2191 | if (swrm->enable_slave_irq) { |
| 2192 | /* Enable slave irq here */ |
| 2193 | swrm_enable_slave_irq(swrm); |
| 2194 | swrm->enable_slave_irq = false; |
| 2195 | } |
| 2196 | |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2197 | intr_sts = swr_master_read(swrm, SWRM_INTERRUPT_STATUS); |
| 2198 | intr_sts_masked = intr_sts & swrm->intr_mask; |
| 2199 | |
| 2200 | if (intr_sts_masked) { |
Sudheer Papothi | 07d5afc | 2019-07-17 06:25:45 +0530 | [diff] [blame] | 2201 | dev_dbg(swrm->dev, "%s: new interrupt received 0x%x\n", |
| 2202 | __func__, intr_sts_masked); |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2203 | goto handle_irq; |
| 2204 | } |
| 2205 | |
| 2206 | mutex_lock(&swrm->reslock); |
| 2207 | swrm_clk_request(swrm, false); |
Karthikeyan Mani | 4bee1db | 2019-09-18 17:58:41 -0700 | [diff] [blame] | 2208 | err_audio_core_vote: |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 2209 | swrm_request_hw_vote(swrm, LPASS_AUDIO_CORE, false); |
Sudheer Papothi | 06f4341 | 2019-07-09 03:32:54 +0530 | [diff] [blame] | 2210 | |
| 2211 | err_audio_hw_vote: |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 2212 | swrm_request_hw_vote(swrm, LPASS_HW_CORE, false); |
Karthikeyan Mani | 035c50b | 2019-05-02 13:35:01 -0700 | [diff] [blame] | 2213 | exit: |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2214 | mutex_unlock(&swrm->reslock); |
| 2215 | swrm_unlock_sleep(swrm); |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 2216 | trace_printk("%s exit\n", __func__); |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2217 | return ret; |
| 2218 | } |
| 2219 | |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 2220 | static irqreturn_t swrm_wakeup_interrupt(int irq, void *dev) |
| 2221 | { |
| 2222 | struct swr_mstr_ctrl *swrm = dev; |
| 2223 | int ret = IRQ_HANDLED; |
| 2224 | |
| 2225 | if (!swrm || !(swrm->dev)) { |
| 2226 | pr_err("%s: swrm or dev is null\n", __func__); |
| 2227 | return IRQ_NONE; |
| 2228 | } |
Vatsal Bucha | 8bcaeab | 2019-10-31 11:45:36 +0530 | [diff] [blame] | 2229 | |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 2230 | trace_printk("%s enter\n", __func__); |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 2231 | mutex_lock(&swrm->devlock); |
| 2232 | if (!swrm->dev_up) { |
Vatsal Bucha | 8bcaeab | 2019-10-31 11:45:36 +0530 | [diff] [blame] | 2233 | if (swrm->wake_irq > 0) { |
| 2234 | if (unlikely(!irq_get_irq_data(swrm->wake_irq))) { |
| 2235 | pr_err("%s: irq data is NULL\n", __func__); |
| 2236 | mutex_unlock(&swrm->devlock); |
| 2237 | return IRQ_NONE; |
| 2238 | } |
| 2239 | mutex_lock(&swrm->irq_lock); |
| 2240 | if (!irqd_irq_disabled( |
| 2241 | irq_get_irq_data(swrm->wake_irq))) |
| 2242 | disable_irq_nosync(swrm->wake_irq); |
| 2243 | mutex_unlock(&swrm->irq_lock); |
| 2244 | } |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 2245 | mutex_unlock(&swrm->devlock); |
| 2246 | return ret; |
| 2247 | } |
| 2248 | mutex_unlock(&swrm->devlock); |
Ramprasad Katkam | 44b7a96 | 2018-12-20 15:08:44 +0530 | [diff] [blame] | 2249 | if (unlikely(swrm_lock_sleep(swrm) == false)) { |
| 2250 | dev_err(swrm->dev, "%s Failed to hold suspend\n", __func__); |
| 2251 | goto exit; |
| 2252 | } |
Vatsal Bucha | 8bcaeab | 2019-10-31 11:45:36 +0530 | [diff] [blame] | 2253 | if (swrm->wake_irq > 0) { |
| 2254 | if (unlikely(!irq_get_irq_data(swrm->wake_irq))) { |
| 2255 | pr_err("%s: irq data is NULL\n", __func__); |
| 2256 | return IRQ_NONE; |
| 2257 | } |
| 2258 | mutex_lock(&swrm->irq_lock); |
| 2259 | if (!irqd_irq_disabled( |
| 2260 | irq_get_irq_data(swrm->wake_irq))) |
| 2261 | disable_irq_nosync(swrm->wake_irq); |
| 2262 | mutex_unlock(&swrm->irq_lock); |
| 2263 | } |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 2264 | pm_runtime_get_sync(swrm->dev); |
| 2265 | pm_runtime_mark_last_busy(swrm->dev); |
| 2266 | pm_runtime_put_autosuspend(swrm->dev); |
Ramprasad Katkam | 44b7a96 | 2018-12-20 15:08:44 +0530 | [diff] [blame] | 2267 | swrm_unlock_sleep(swrm); |
| 2268 | exit: |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 2269 | trace_printk("%s exit\n", __func__); |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 2270 | return ret; |
| 2271 | } |
| 2272 | |
Laxminath Kasam | f0128ef | 2018-08-31 15:15:09 +0530 | [diff] [blame] | 2273 | static void swrm_wakeup_work(struct work_struct *work) |
| 2274 | { |
| 2275 | struct swr_mstr_ctrl *swrm; |
| 2276 | |
| 2277 | swrm = container_of(work, struct swr_mstr_ctrl, |
| 2278 | wakeup_work); |
| 2279 | if (!swrm || !(swrm->dev)) { |
| 2280 | pr_err("%s: swrm or dev is null\n", __func__); |
| 2281 | return; |
| 2282 | } |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 2283 | |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 2284 | trace_printk("%s enter\n", __func__); |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 2285 | mutex_lock(&swrm->devlock); |
| 2286 | if (!swrm->dev_up) { |
| 2287 | mutex_unlock(&swrm->devlock); |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2288 | goto exit; |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 2289 | } |
| 2290 | mutex_unlock(&swrm->devlock); |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2291 | if (unlikely(swrm_lock_sleep(swrm) == false)) { |
| 2292 | dev_err(swrm->dev, "%s Failed to hold suspend\n", __func__); |
| 2293 | goto exit; |
| 2294 | } |
Laxminath Kasam | f0128ef | 2018-08-31 15:15:09 +0530 | [diff] [blame] | 2295 | pm_runtime_get_sync(swrm->dev); |
Laxminath Kasam | f0128ef | 2018-08-31 15:15:09 +0530 | [diff] [blame] | 2296 | pm_runtime_mark_last_busy(swrm->dev); |
| 2297 | pm_runtime_put_autosuspend(swrm->dev); |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2298 | swrm_unlock_sleep(swrm); |
| 2299 | exit: |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 2300 | trace_printk("%s exit\n", __func__); |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2301 | pm_relax(swrm->dev); |
Laxminath Kasam | f0128ef | 2018-08-31 15:15:09 +0530 | [diff] [blame] | 2302 | } |
| 2303 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2304 | static int swrm_get_device_status(struct swr_mstr_ctrl *swrm, u8 devnum) |
| 2305 | { |
| 2306 | u32 val; |
| 2307 | |
| 2308 | swrm->slave_status = swr_master_read(swrm, SWRM_MCP_SLV_STATUS); |
| 2309 | val = (swrm->slave_status >> (devnum * 2)); |
| 2310 | val &= SWRM_MCP_SLV_STATUS_MASK; |
| 2311 | return val; |
| 2312 | } |
| 2313 | |
| 2314 | static int swrm_get_logical_dev_num(struct swr_master *mstr, u64 dev_id, |
| 2315 | u8 *dev_num) |
| 2316 | { |
| 2317 | int i; |
| 2318 | u64 id = 0; |
| 2319 | int ret = -EINVAL; |
| 2320 | struct swr_mstr_ctrl *swrm = swr_get_ctrl_data(mstr); |
| 2321 | struct swr_device *swr_dev; |
| 2322 | u32 num_dev = 0; |
| 2323 | |
| 2324 | if (!swrm) { |
| 2325 | pr_err("%s: Invalid handle to swr controller\n", |
| 2326 | __func__); |
| 2327 | return ret; |
| 2328 | } |
| 2329 | if (swrm->num_dev) |
| 2330 | num_dev = swrm->num_dev; |
| 2331 | else |
| 2332 | num_dev = mstr->num_dev; |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 2333 | |
| 2334 | mutex_lock(&swrm->devlock); |
| 2335 | if (!swrm->dev_up) { |
| 2336 | mutex_unlock(&swrm->devlock); |
| 2337 | return ret; |
| 2338 | } |
| 2339 | mutex_unlock(&swrm->devlock); |
| 2340 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2341 | pm_runtime_get_sync(swrm->dev); |
| 2342 | for (i = 1; i < (num_dev + 1); i++) { |
| 2343 | id = ((u64)(swr_master_read(swrm, |
| 2344 | SWRM_ENUMERATOR_SLAVE_DEV_ID_2(i))) << 32); |
| 2345 | id |= swr_master_read(swrm, |
| 2346 | SWRM_ENUMERATOR_SLAVE_DEV_ID_1(i)); |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 2347 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2348 | /* |
| 2349 | * As pm_runtime_get_sync() brings all slaves out of reset |
| 2350 | * update logical device number for all slaves. |
| 2351 | */ |
| 2352 | list_for_each_entry(swr_dev, &mstr->devices, dev_list) { |
| 2353 | if (swr_dev->addr == (id & SWR_DEV_ID_MASK)) { |
| 2354 | u32 status = swrm_get_device_status(swrm, i); |
| 2355 | |
| 2356 | if ((status == 0x01) || (status == 0x02)) { |
| 2357 | swr_dev->dev_num = i; |
| 2358 | if ((id & SWR_DEV_ID_MASK) == dev_id) { |
| 2359 | *dev_num = i; |
| 2360 | ret = 0; |
| 2361 | } |
| 2362 | dev_dbg(swrm->dev, |
Xiao Li | d8bb93c | 2020-01-07 12:59:05 +0800 | [diff] [blame] | 2363 | "%s: devnum %d is assigned for dev addr %llx\n", |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2364 | __func__, i, swr_dev->addr); |
| 2365 | } |
| 2366 | } |
| 2367 | } |
| 2368 | } |
| 2369 | if (ret) |
| 2370 | dev_err(swrm->dev, "%s: device 0x%llx is not ready\n", |
| 2371 | __func__, dev_id); |
| 2372 | |
| 2373 | pm_runtime_mark_last_busy(swrm->dev); |
| 2374 | pm_runtime_put_autosuspend(swrm->dev); |
| 2375 | return ret; |
| 2376 | } |
Sudheer Papothi | 6abd2de | 2018-09-05 05:57:04 +0530 | [diff] [blame] | 2377 | |
| 2378 | static void swrm_device_wakeup_vote(struct swr_master *mstr) |
| 2379 | { |
| 2380 | struct swr_mstr_ctrl *swrm = swr_get_ctrl_data(mstr); |
| 2381 | |
| 2382 | if (!swrm) { |
| 2383 | pr_err("%s: Invalid handle to swr controller\n", |
| 2384 | __func__); |
| 2385 | return; |
| 2386 | } |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2387 | if (unlikely(swrm_lock_sleep(swrm) == false)) { |
| 2388 | dev_err(swrm->dev, "%s Failed to hold suspend\n", __func__); |
| 2389 | return; |
| 2390 | } |
Aditya Bavanari | eb04461 | 2019-12-22 17:14:15 +0530 | [diff] [blame] | 2391 | mutex_lock(&swrm->reslock); |
| 2392 | if (swrm_request_hw_vote(swrm, LPASS_HW_CORE, true)) |
| 2393 | dev_err(swrm->dev, "%s:lpass core hw enable failed\n", |
| 2394 | __func__); |
| 2395 | if (swrm_request_hw_vote(swrm, LPASS_AUDIO_CORE, true)) |
| 2396 | dev_err(swrm->dev, "%s:lpass audio hw enable failed\n", |
| 2397 | __func__); |
| 2398 | mutex_unlock(&swrm->reslock); |
| 2399 | |
Sudheer Papothi | 6abd2de | 2018-09-05 05:57:04 +0530 | [diff] [blame] | 2400 | pm_runtime_get_sync(swrm->dev); |
| 2401 | } |
| 2402 | |
| 2403 | static void swrm_device_wakeup_unvote(struct swr_master *mstr) |
| 2404 | { |
| 2405 | struct swr_mstr_ctrl *swrm = swr_get_ctrl_data(mstr); |
| 2406 | |
| 2407 | if (!swrm) { |
| 2408 | pr_err("%s: Invalid handle to swr controller\n", |
| 2409 | __func__); |
| 2410 | return; |
| 2411 | } |
| 2412 | pm_runtime_mark_last_busy(swrm->dev); |
| 2413 | pm_runtime_put_autosuspend(swrm->dev); |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 2414 | |
Aditya Bavanari | eb04461 | 2019-12-22 17:14:15 +0530 | [diff] [blame] | 2415 | mutex_lock(&swrm->reslock); |
| 2416 | swrm_request_hw_vote(swrm, LPASS_AUDIO_CORE, false); |
| 2417 | swrm_request_hw_vote(swrm, LPASS_HW_CORE, false); |
| 2418 | mutex_unlock(&swrm->reslock); |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 2419 | |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2420 | swrm_unlock_sleep(swrm); |
Sudheer Papothi | 6abd2de | 2018-09-05 05:57:04 +0530 | [diff] [blame] | 2421 | } |
| 2422 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2423 | static int swrm_master_init(struct swr_mstr_ctrl *swrm) |
| 2424 | { |
Laxminath Kasam | 3695642 | 2020-06-01 19:23:48 +0530 | [diff] [blame] | 2425 | int ret = 0, i = 0; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2426 | u32 val; |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 2427 | u8 row_ctrl = SWR_ROW_50; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2428 | u8 col_ctrl = SWR_MIN_COL; |
| 2429 | u8 ssp_period = 1; |
| 2430 | u8 retry_cmd_num = 3; |
| 2431 | u32 reg[SWRM_MAX_INIT_REG]; |
| 2432 | u32 value[SWRM_MAX_INIT_REG]; |
Laxminath Kasam | c7bfab9 | 2019-08-27 16:19:14 +0530 | [diff] [blame] | 2433 | u32 temp = 0; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2434 | int len = 0; |
| 2435 | |
Laxminath Kasam | 3695642 | 2020-06-01 19:23:48 +0530 | [diff] [blame] | 2436 | /* SW workaround to gate hw_ctl for SWR version >=1.6 */ |
| 2437 | if (swrm->version >= SWRM_VERSION_1_6) { |
| 2438 | if (swrm->swrm_hctl_reg) { |
| 2439 | temp = ioread32(swrm->swrm_hctl_reg); |
| 2440 | temp &= 0xFFFFFFFD; |
| 2441 | iowrite32(temp, swrm->swrm_hctl_reg); |
| 2442 | usleep_range(500, 505); |
| 2443 | temp = ioread32(swrm->swrm_hctl_reg); |
| 2444 | dev_dbg(swrm->dev, "%s: hctl_reg val: 0x%x\n", |
| 2445 | __func__, temp); |
| 2446 | } |
| 2447 | } |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 2448 | ssp_period = swrm_get_ssp_period(swrm, SWRM_ROW_50, |
| 2449 | SWRM_COL_02, SWRM_FRAME_SYNC_SEL); |
| 2450 | dev_dbg(swrm->dev, "%s: ssp_period: %d\n", __func__, ssp_period); |
| 2451 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2452 | /* Clear Rows and Cols */ |
| 2453 | val = ((row_ctrl << SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_SHFT) | |
| 2454 | (col_ctrl << SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_SHFT) | |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 2455 | ((ssp_period - 1) << SWRM_MCP_FRAME_CTRL_BANK_SSP_PERIOD_SHFT)); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2456 | |
| 2457 | reg[len] = SWRM_MCP_FRAME_CTRL_BANK_ADDR(0); |
| 2458 | value[len++] = val; |
| 2459 | |
| 2460 | /* Set Auto enumeration flag */ |
| 2461 | reg[len] = SWRM_ENUMERATOR_CFG_ADDR; |
| 2462 | value[len++] = 1; |
| 2463 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2464 | /* Configure No pings */ |
| 2465 | val = swr_master_read(swrm, SWRM_MCP_CFG_ADDR); |
| 2466 | val &= ~SWRM_MCP_CFG_MAX_NUM_OF_CMD_NO_PINGS_BMSK; |
| 2467 | val |= (0x1f << SWRM_MCP_CFG_MAX_NUM_OF_CMD_NO_PINGS_SHFT); |
| 2468 | reg[len] = SWRM_MCP_CFG_ADDR; |
| 2469 | value[len++] = val; |
| 2470 | |
| 2471 | /* Configure number of retries of a read/write cmd */ |
| 2472 | val = (retry_cmd_num << SWRM_CMD_FIFO_CFG_NUM_OF_CMD_RETRY_SHFT); |
| 2473 | reg[len] = SWRM_CMD_FIFO_CFG_ADDR; |
| 2474 | value[len++] = val; |
| 2475 | |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 2476 | reg[len] = SWRM_MCP_BUS_CTRL_ADDR; |
| 2477 | value[len++] = 0x2; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2478 | |
Ramprasad Katkam | 8330351 | 2018-10-11 17:34:22 +0530 | [diff] [blame] | 2479 | /* Set IRQ to PULSE */ |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2480 | reg[len] = SWRM_COMP_CFG_ADDR; |
Ramprasad Katkam | 8330351 | 2018-10-11 17:34:22 +0530 | [diff] [blame] | 2481 | value[len++] = 0x02; |
| 2482 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2483 | reg[len] = SWRM_INTERRUPT_CLEAR; |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 2484 | value[len++] = 0xFFFFFFFF; |
| 2485 | |
Ramprasad Katkam | 7e35478 | 2018-11-21 15:52:54 +0530 | [diff] [blame] | 2486 | swrm->intr_mask = SWRM_INTERRUPT_STATUS_MASK; |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 2487 | /* Mask soundwire interrupts */ |
| 2488 | reg[len] = SWRM_INTERRUPT_MASK_ADDR; |
Ramprasad Katkam | 7e35478 | 2018-11-21 15:52:54 +0530 | [diff] [blame] | 2489 | value[len++] = swrm->intr_mask; |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 2490 | |
| 2491 | reg[len] = SWR_MSTR_RX_SWRM_CPU_INTERRUPT_EN; |
Ramprasad Katkam | 7e35478 | 2018-11-21 15:52:54 +0530 | [diff] [blame] | 2492 | value[len++] = swrm->intr_mask; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2493 | |
Meng Wang | 6bb6f66 | 2020-08-25 17:14:49 +0800 | [diff] [blame] | 2494 | reg[len] = SWRM_COMP_CFG_ADDR; |
| 2495 | value[len++] = 0x03; |
| 2496 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2497 | swr_master_bulk_write(swrm, reg, value, len); |
| 2498 | |
Laxminath Kasam | cafe073 | 2019-11-20 17:31:58 +0530 | [diff] [blame] | 2499 | if (!swrm_check_link_status(swrm, 0x1)) { |
| 2500 | dev_err(swrm->dev, |
| 2501 | "%s: swr link failed to connect\n", |
| 2502 | __func__); |
Laxminath Kasam | 3695642 | 2020-06-01 19:23:48 +0530 | [diff] [blame] | 2503 | for (i = 0; i < len; i++) { |
| 2504 | usleep_range(50, 55); |
| 2505 | dev_err(swrm->dev, |
| 2506 | "%s:reg:0x%x val:0x%x\n", |
| 2507 | __func__, |
| 2508 | reg[i], swr_master_read(swrm, reg[i])); |
| 2509 | } |
Laxminath Kasam | cafe073 | 2019-11-20 17:31:58 +0530 | [diff] [blame] | 2510 | return -EINVAL; |
| 2511 | } |
Sudheer Papothi | 63f4815 | 2018-11-15 01:08:03 +0530 | [diff] [blame] | 2512 | /* |
| 2513 | * For SWR master version 1.5.1, continue |
| 2514 | * execute on command ignore. |
| 2515 | */ |
Laxminath Kasam | c7bfab9 | 2019-08-27 16:19:14 +0530 | [diff] [blame] | 2516 | /* Execute it for versions >= 1.5.1 */ |
| 2517 | if (swrm->version >= SWRM_VERSION_1_5_1) |
Sudheer Papothi | 63f4815 | 2018-11-15 01:08:03 +0530 | [diff] [blame] | 2518 | swr_master_write(swrm, SWRM_CMD_FIFO_CFG_ADDR, |
| 2519 | (swr_master_read(swrm, |
| 2520 | SWRM_CMD_FIFO_CFG_ADDR) | 0x80000000)); |
| 2521 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2522 | return ret; |
| 2523 | } |
| 2524 | |
Ramprasad Katkam | 68765ab | 2018-08-30 11:46:32 +0530 | [diff] [blame] | 2525 | static int swrm_event_notify(struct notifier_block *self, |
Laxminath Kasam | f0128ef | 2018-08-31 15:15:09 +0530 | [diff] [blame] | 2526 | unsigned long action, void *data) |
Ramprasad Katkam | 68765ab | 2018-08-30 11:46:32 +0530 | [diff] [blame] | 2527 | { |
| 2528 | struct swr_mstr_ctrl *swrm = container_of(self, struct swr_mstr_ctrl, |
Laxminath Kasam | f0128ef | 2018-08-31 15:15:09 +0530 | [diff] [blame] | 2529 | event_notifier); |
| 2530 | |
| 2531 | if (!swrm || !(swrm->dev)) { |
| 2532 | pr_err("%s: swrm or dev is NULL\n", __func__); |
Ramprasad Katkam | 68765ab | 2018-08-30 11:46:32 +0530 | [diff] [blame] | 2533 | return -EINVAL; |
| 2534 | } |
Laxminath Kasam | f0128ef | 2018-08-31 15:15:09 +0530 | [diff] [blame] | 2535 | switch (action) { |
| 2536 | case MSM_AUD_DC_EVENT: |
| 2537 | schedule_work(&(swrm->dc_presence_work)); |
| 2538 | break; |
| 2539 | case SWR_WAKE_IRQ_EVENT: |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 2540 | if (swrm->ipc_wakeup && !swrm->ipc_wakeup_triggered) { |
| 2541 | swrm->ipc_wakeup_triggered = true; |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2542 | pm_stay_awake(swrm->dev); |
Laxminath Kasam | f0128ef | 2018-08-31 15:15:09 +0530 | [diff] [blame] | 2543 | schedule_work(&swrm->wakeup_work); |
Ramprasad Katkam | cd61c6e | 2018-09-18 13:22:58 +0530 | [diff] [blame] | 2544 | } |
Laxminath Kasam | f0128ef | 2018-08-31 15:15:09 +0530 | [diff] [blame] | 2545 | break; |
| 2546 | default: |
| 2547 | dev_err(swrm->dev, "%s: invalid event type: %lu\n", |
Ramprasad Katkam | 68765ab | 2018-08-30 11:46:32 +0530 | [diff] [blame] | 2548 | __func__, action); |
| 2549 | return -EINVAL; |
| 2550 | } |
| 2551 | |
Ramprasad Katkam | 68765ab | 2018-08-30 11:46:32 +0530 | [diff] [blame] | 2552 | return 0; |
| 2553 | } |
| 2554 | |
| 2555 | static void swrm_notify_work_fn(struct work_struct *work) |
| 2556 | { |
| 2557 | struct swr_mstr_ctrl *swrm = container_of(work, struct swr_mstr_ctrl, |
Laxminath Kasam | f0128ef | 2018-08-31 15:15:09 +0530 | [diff] [blame] | 2558 | dc_presence_work); |
| 2559 | |
| 2560 | if (!swrm || !swrm->pdev) { |
| 2561 | pr_err("%s: swrm or pdev is NULL\n", __func__); |
| 2562 | return; |
| 2563 | } |
Ramprasad Katkam | 68765ab | 2018-08-30 11:46:32 +0530 | [diff] [blame] | 2564 | swrm_wcd_notify(swrm->pdev, SWR_DEVICE_DOWN, NULL); |
| 2565 | } |
| 2566 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2567 | static int swrm_probe(struct platform_device *pdev) |
| 2568 | { |
| 2569 | struct swr_mstr_ctrl *swrm; |
| 2570 | struct swr_ctrl_platform_data *pdata; |
Laxminath Kasam | c7bfab9 | 2019-08-27 16:19:14 +0530 | [diff] [blame] | 2571 | u32 i, num_ports, port_num, port_type, ch_mask, swrm_hctl_reg = 0; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2572 | u32 *temp, map_size, map_length, ch_iter = 0, old_port_num = 0; |
| 2573 | int ret = 0; |
Sudheer Papothi | 66d6fd1 | 2019-03-27 17:34:48 +0530 | [diff] [blame] | 2574 | struct clk *lpass_core_hw_vote = NULL; |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 2575 | struct clk *lpass_core_audio = NULL; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2576 | |
| 2577 | /* Allocate soundwire master driver structure */ |
| 2578 | swrm = devm_kzalloc(&pdev->dev, sizeof(struct swr_mstr_ctrl), |
| 2579 | GFP_KERNEL); |
| 2580 | if (!swrm) { |
| 2581 | ret = -ENOMEM; |
| 2582 | goto err_memory_fail; |
| 2583 | } |
Laxminath Kasam | f0128ef | 2018-08-31 15:15:09 +0530 | [diff] [blame] | 2584 | swrm->pdev = pdev; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2585 | swrm->dev = &pdev->dev; |
| 2586 | platform_set_drvdata(pdev, swrm); |
| 2587 | swr_set_ctrl_data(&swrm->master, swrm); |
| 2588 | pdata = dev_get_platdata(&pdev->dev); |
| 2589 | if (!pdata) { |
| 2590 | dev_err(&pdev->dev, "%s: pdata from parent is NULL\n", |
| 2591 | __func__); |
| 2592 | ret = -EINVAL; |
| 2593 | goto err_pdata_fail; |
| 2594 | } |
| 2595 | swrm->handle = (void *)pdata->handle; |
| 2596 | if (!swrm->handle) { |
| 2597 | dev_err(&pdev->dev, "%s: swrm->handle is NULL\n", |
| 2598 | __func__); |
| 2599 | ret = -EINVAL; |
| 2600 | goto err_pdata_fail; |
| 2601 | } |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 2602 | ret = of_property_read_u32(pdev->dev.of_node, "qcom,swr_master_id", |
| 2603 | &swrm->master_id); |
| 2604 | if (ret) { |
| 2605 | dev_err(&pdev->dev, "%s: failed to get master id\n", __func__); |
| 2606 | goto err_pdata_fail; |
| 2607 | } |
Laxminath Kasam | fbcaf32 | 2018-07-18 00:38:14 +0530 | [diff] [blame] | 2608 | if (!(of_property_read_u32(pdev->dev.of_node, |
| 2609 | "swrm-io-base", &swrm->swrm_base_reg))) |
| 2610 | ret = of_property_read_u32(pdev->dev.of_node, |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2611 | "swrm-io-base", &swrm->swrm_base_reg); |
| 2612 | if (!swrm->swrm_base_reg) { |
| 2613 | swrm->read = pdata->read; |
| 2614 | if (!swrm->read) { |
| 2615 | dev_err(&pdev->dev, "%s: swrm->read is NULL\n", |
| 2616 | __func__); |
| 2617 | ret = -EINVAL; |
| 2618 | goto err_pdata_fail; |
| 2619 | } |
| 2620 | swrm->write = pdata->write; |
| 2621 | if (!swrm->write) { |
| 2622 | dev_err(&pdev->dev, "%s: swrm->write is NULL\n", |
| 2623 | __func__); |
| 2624 | ret = -EINVAL; |
| 2625 | goto err_pdata_fail; |
| 2626 | } |
| 2627 | swrm->bulk_write = pdata->bulk_write; |
| 2628 | if (!swrm->bulk_write) { |
| 2629 | dev_err(&pdev->dev, "%s: swrm->bulk_write is NULL\n", |
| 2630 | __func__); |
| 2631 | ret = -EINVAL; |
| 2632 | goto err_pdata_fail; |
| 2633 | } |
| 2634 | } else { |
| 2635 | swrm->swrm_dig_base = devm_ioremap(&pdev->dev, |
| 2636 | swrm->swrm_base_reg, SWRM_MAX_REGISTER); |
| 2637 | } |
| 2638 | |
Karthikeyan Mani | 1d750fe | 2019-09-06 14:36:09 -0700 | [diff] [blame] | 2639 | swrm->core_vote = pdata->core_vote; |
Laxminath Kasam | c7bfab9 | 2019-08-27 16:19:14 +0530 | [diff] [blame] | 2640 | if (!(of_property_read_u32(pdev->dev.of_node, |
| 2641 | "qcom,swrm-hctl-reg", &swrm_hctl_reg))) |
| 2642 | swrm->swrm_hctl_reg = devm_ioremap(&pdev->dev, |
| 2643 | swrm_hctl_reg, 0x4); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2644 | swrm->clk = pdata->clk; |
| 2645 | if (!swrm->clk) { |
| 2646 | dev_err(&pdev->dev, "%s: swrm->clk is NULL\n", |
| 2647 | __func__); |
| 2648 | ret = -EINVAL; |
| 2649 | goto err_pdata_fail; |
| 2650 | } |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 2651 | if (of_property_read_u32(pdev->dev.of_node, |
| 2652 | "qcom,swr-clock-stop-mode0", |
| 2653 | &swrm->clk_stop_mode0_supp)) { |
| 2654 | swrm->clk_stop_mode0_supp = FALSE; |
| 2655 | } |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2656 | |
| 2657 | ret = of_property_read_u32(swrm->dev->of_node, "qcom,swr-num-dev", |
| 2658 | &swrm->num_dev); |
| 2659 | if (ret) { |
| 2660 | dev_dbg(&pdev->dev, "%s: Looking up %s property failed\n", |
| 2661 | __func__, "qcom,swr-num-dev"); |
| 2662 | } else { |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 2663 | if (swrm->num_dev > SWRM_NUM_AUTO_ENUM_SLAVES) { |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2664 | dev_err(&pdev->dev, "%s: num_dev %d > max limit %d\n", |
Sudheer Papothi | ae5c363 | 2019-11-27 06:52:06 +0530 | [diff] [blame] | 2665 | __func__, swrm->num_dev, |
| 2666 | SWRM_NUM_AUTO_ENUM_SLAVES); |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2667 | ret = -EINVAL; |
| 2668 | goto err_pdata_fail; |
Vatsal Bucha | ec0d9f5 | 2020-08-12 09:42:46 +0530 | [diff] [blame] | 2669 | } else { |
| 2670 | swrm->master.num_dev = swrm->num_dev; |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2671 | } |
| 2672 | } |
| 2673 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2674 | /* Parse soundwire port mapping */ |
| 2675 | ret = of_property_read_u32(pdev->dev.of_node, "qcom,swr-num-ports", |
| 2676 | &num_ports); |
| 2677 | if (ret) { |
| 2678 | dev_err(swrm->dev, "%s: Failed to get num_ports\n", __func__); |
| 2679 | goto err_pdata_fail; |
| 2680 | } |
| 2681 | swrm->num_ports = num_ports; |
| 2682 | |
| 2683 | if (!of_find_property(pdev->dev.of_node, "qcom,swr-port-mapping", |
| 2684 | &map_size)) { |
| 2685 | dev_err(swrm->dev, "missing port mapping\n"); |
| 2686 | goto err_pdata_fail; |
| 2687 | } |
| 2688 | |
| 2689 | map_length = map_size / (3 * sizeof(u32)); |
| 2690 | if (num_ports > SWR_MSTR_PORT_LEN) { |
| 2691 | dev_err(&pdev->dev, "%s:invalid number of swr ports\n", |
| 2692 | __func__); |
| 2693 | ret = -EINVAL; |
| 2694 | goto err_pdata_fail; |
| 2695 | } |
| 2696 | temp = devm_kzalloc(&pdev->dev, map_size, GFP_KERNEL); |
| 2697 | |
| 2698 | if (!temp) { |
| 2699 | ret = -ENOMEM; |
| 2700 | goto err_pdata_fail; |
| 2701 | } |
| 2702 | ret = of_property_read_u32_array(pdev->dev.of_node, |
| 2703 | "qcom,swr-port-mapping", temp, 3 * map_length); |
| 2704 | if (ret) { |
| 2705 | dev_err(swrm->dev, "%s: Failed to read port mapping\n", |
| 2706 | __func__); |
| 2707 | goto err_pdata_fail; |
| 2708 | } |
| 2709 | |
| 2710 | for (i = 0; i < map_length; i++) { |
| 2711 | port_num = temp[3 * i]; |
| 2712 | port_type = temp[3 * i + 1]; |
| 2713 | ch_mask = temp[3 * i + 2]; |
| 2714 | |
| 2715 | if (port_num != old_port_num) |
| 2716 | ch_iter = 0; |
| 2717 | swrm->port_mapping[port_num][ch_iter].port_type = port_type; |
| 2718 | swrm->port_mapping[port_num][ch_iter++].ch_mask = ch_mask; |
| 2719 | old_port_num = port_num; |
| 2720 | } |
| 2721 | devm_kfree(&pdev->dev, temp); |
| 2722 | |
| 2723 | swrm->reg_irq = pdata->reg_irq; |
| 2724 | swrm->master.read = swrm_read; |
| 2725 | swrm->master.write = swrm_write; |
| 2726 | swrm->master.bulk_write = swrm_bulk_write; |
| 2727 | swrm->master.get_logical_dev_num = swrm_get_logical_dev_num; |
| 2728 | swrm->master.connect_port = swrm_connect_port; |
| 2729 | swrm->master.disconnect_port = swrm_disconnect_port; |
| 2730 | swrm->master.slvdev_datapath_control = swrm_slvdev_datapath_control; |
| 2731 | swrm->master.remove_from_group = swrm_remove_from_group; |
Sudheer Papothi | 6abd2de | 2018-09-05 05:57:04 +0530 | [diff] [blame] | 2732 | swrm->master.device_wakeup_vote = swrm_device_wakeup_vote; |
| 2733 | swrm->master.device_wakeup_unvote = swrm_device_wakeup_unvote; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2734 | swrm->master.dev.parent = &pdev->dev; |
| 2735 | swrm->master.dev.of_node = pdev->dev.of_node; |
| 2736 | swrm->master.num_port = 0; |
| 2737 | swrm->rcmd_id = 0; |
| 2738 | swrm->wcmd_id = 0; |
| 2739 | swrm->slave_status = 0; |
| 2740 | swrm->num_rx_chs = 0; |
| 2741 | swrm->clk_ref_count = 0; |
Vatsal Bucha | df38c3e | 2019-03-11 17:10:23 +0530 | [diff] [blame] | 2742 | swrm->swr_irq_wakeup_capable = 0; |
Laxminath Kasam | b0f27cd | 2018-09-06 12:17:11 +0530 | [diff] [blame] | 2743 | swrm->mclk_freq = MCLK_FREQ; |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 2744 | swrm->bus_clk = MCLK_FREQ; |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 2745 | swrm->dev_up = true; |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 2746 | swrm->state = SWR_MSTR_UP; |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 2747 | swrm->ipc_wakeup = false; |
Vatsal Bucha | 27e8e9b | 2020-12-30 19:05:37 +0530 | [diff] [blame^] | 2748 | swrm->enable_slave_irq = false; |
| 2749 | swrm->clk_stop_wakeup = false; |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 2750 | swrm->ipc_wakeup_triggered = false; |
Vatsal Bucha | 687f982 | 2020-04-01 18:21:41 +0530 | [diff] [blame] | 2751 | swrm->disable_div2_clk_switch = FALSE; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2752 | init_completion(&swrm->reset); |
| 2753 | init_completion(&swrm->broadcast); |
Ramprasad Katkam | 6bce2e7 | 2018-10-10 19:20:13 +0530 | [diff] [blame] | 2754 | init_completion(&swrm->clk_off_complete); |
Vatsal Bucha | 8bcaeab | 2019-10-31 11:45:36 +0530 | [diff] [blame] | 2755 | mutex_init(&swrm->irq_lock); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2756 | mutex_init(&swrm->mlock); |
| 2757 | mutex_init(&swrm->reslock); |
| 2758 | mutex_init(&swrm->force_down_lock); |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 2759 | mutex_init(&swrm->iolock); |
Ramprasad Katkam | 6bce2e7 | 2018-10-10 19:20:13 +0530 | [diff] [blame] | 2760 | mutex_init(&swrm->clklock); |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 2761 | mutex_init(&swrm->devlock); |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2762 | mutex_init(&swrm->pm_lock); |
| 2763 | swrm->wlock_holders = 0; |
| 2764 | swrm->pm_state = SWRM_PM_SLEEPABLE; |
| 2765 | init_waitqueue_head(&swrm->pm_wq); |
| 2766 | pm_qos_add_request(&swrm->pm_qos_req, |
| 2767 | PM_QOS_CPU_DMA_LATENCY, |
| 2768 | PM_QOS_DEFAULT_VALUE); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2769 | |
| 2770 | for (i = 0 ; i < SWR_MSTR_PORT_LEN; i++) |
| 2771 | INIT_LIST_HEAD(&swrm->mport_cfg[i].port_req_list); |
| 2772 | |
Vatsal Bucha | 687f982 | 2020-04-01 18:21:41 +0530 | [diff] [blame] | 2773 | if (of_property_read_u32(pdev->dev.of_node, |
| 2774 | "qcom,disable-div2-clk-switch", |
| 2775 | &swrm->disable_div2_clk_switch)) { |
| 2776 | swrm->disable_div2_clk_switch = FALSE; |
| 2777 | } |
| 2778 | |
Sudheer Papothi | 06f4341 | 2019-07-09 03:32:54 +0530 | [diff] [blame] | 2779 | /* Register LPASS core hw vote */ |
| 2780 | lpass_core_hw_vote = devm_clk_get(&pdev->dev, "lpass_core_hw_vote"); |
| 2781 | if (IS_ERR(lpass_core_hw_vote)) { |
| 2782 | ret = PTR_ERR(lpass_core_hw_vote); |
| 2783 | dev_dbg(&pdev->dev, "%s: clk get %s failed %d\n", |
| 2784 | __func__, "lpass_core_hw_vote", ret); |
| 2785 | lpass_core_hw_vote = NULL; |
| 2786 | ret = 0; |
| 2787 | } |
| 2788 | swrm->lpass_core_hw_vote = lpass_core_hw_vote; |
| 2789 | |
| 2790 | /* Register LPASS audio core vote */ |
| 2791 | lpass_core_audio = devm_clk_get(&pdev->dev, "lpass_audio_hw_vote"); |
| 2792 | if (IS_ERR(lpass_core_audio)) { |
| 2793 | ret = PTR_ERR(lpass_core_audio); |
| 2794 | dev_dbg(&pdev->dev, "%s: clk get %s failed %d\n", |
| 2795 | __func__, "lpass_core_audio", ret); |
| 2796 | lpass_core_audio = NULL; |
| 2797 | ret = 0; |
| 2798 | } |
| 2799 | swrm->lpass_core_audio = lpass_core_audio; |
| 2800 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2801 | if (swrm->reg_irq) { |
| 2802 | ret = swrm->reg_irq(swrm->handle, swr_mstr_interrupt, swrm, |
| 2803 | SWR_IRQ_REGISTER); |
| 2804 | if (ret) { |
| 2805 | dev_err(&pdev->dev, "%s: IRQ register failed ret %d\n", |
| 2806 | __func__, ret); |
| 2807 | goto err_irq_fail; |
| 2808 | } |
| 2809 | } else { |
| 2810 | swrm->irq = platform_get_irq_byname(pdev, "swr_master_irq"); |
| 2811 | if (swrm->irq < 0) { |
| 2812 | dev_err(swrm->dev, "%s() error getting irq hdle: %d\n", |
| 2813 | __func__, swrm->irq); |
Laxminath Kasam | fbcaf32 | 2018-07-18 00:38:14 +0530 | [diff] [blame] | 2814 | goto err_irq_fail; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2815 | } |
| 2816 | |
| 2817 | ret = request_threaded_irq(swrm->irq, NULL, |
Sudheer Papothi | d19d0c5 | 2019-02-23 05:41:39 +0530 | [diff] [blame] | 2818 | swr_mstr_interrupt_v2, |
Ramprasad Katkam | 8330351 | 2018-10-11 17:34:22 +0530 | [diff] [blame] | 2819 | IRQF_TRIGGER_RISING | IRQF_ONESHOT, |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2820 | "swr_master_irq", swrm); |
| 2821 | if (ret) { |
| 2822 | dev_err(swrm->dev, "%s: Failed to request irq %d\n", |
| 2823 | __func__, ret); |
| 2824 | goto err_irq_fail; |
| 2825 | } |
| 2826 | |
| 2827 | } |
Vatsal Bucha | df38c3e | 2019-03-11 17:10:23 +0530 | [diff] [blame] | 2828 | /* Make inband tx interrupts as wakeup capable for slave irq */ |
| 2829 | ret = of_property_read_u32(pdev->dev.of_node, |
| 2830 | "qcom,swr-mstr-irq-wakeup-capable", |
| 2831 | &swrm->swr_irq_wakeup_capable); |
| 2832 | if (ret) |
| 2833 | dev_dbg(swrm->dev, "%s: swrm irq wakeup capable not defined\n", |
| 2834 | __func__); |
| 2835 | if (swrm->swr_irq_wakeup_capable) |
| 2836 | irq_set_irq_wake(swrm->irq, 1); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2837 | ret = swr_register_master(&swrm->master); |
| 2838 | if (ret) { |
| 2839 | dev_err(&pdev->dev, "%s: error adding swr master\n", __func__); |
| 2840 | goto err_mstr_fail; |
| 2841 | } |
| 2842 | |
| 2843 | /* Add devices registered with board-info as the |
| 2844 | * controller will be up now |
| 2845 | */ |
| 2846 | swr_master_add_boarddevices(&swrm->master); |
| 2847 | mutex_lock(&swrm->mlock); |
| 2848 | swrm_clk_request(swrm, true); |
Laxminath Kasam | 4696fff | 2019-11-26 16:07:11 +0530 | [diff] [blame] | 2849 | swrm->version = swr_master_read(swrm, SWRM_COMP_HW_VERSION); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2850 | ret = swrm_master_init(swrm); |
| 2851 | if (ret < 0) { |
| 2852 | dev_err(&pdev->dev, |
| 2853 | "%s: Error in master Initialization , err %d\n", |
| 2854 | __func__, ret); |
| 2855 | mutex_unlock(&swrm->mlock); |
Laxminath Kasam | 3695642 | 2020-06-01 19:23:48 +0530 | [diff] [blame] | 2856 | ret = -EPROBE_DEFER; |
Laxminath Kasam | ec8c909 | 2019-12-17 13:12:58 +0530 | [diff] [blame] | 2857 | goto err_mstr_init_fail; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2858 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2859 | |
| 2860 | mutex_unlock(&swrm->mlock); |
Laxminath Kasam | f0128ef | 2018-08-31 15:15:09 +0530 | [diff] [blame] | 2861 | INIT_WORK(&swrm->wakeup_work, swrm_wakeup_work); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2862 | |
| 2863 | if (pdev->dev.of_node) |
| 2864 | of_register_swr_devices(&swrm->master); |
| 2865 | |
Vatsal Bucha | ad9d364 | 2020-07-13 02:30:04 -0700 | [diff] [blame] | 2866 | swrm->rd_fifo_depth = ((swr_master_read(swrm, SWRM_COMP_PARAMS) |
| 2867 | & SWRM_COMP_PARAMS_RD_FIFO_DEPTH) >> 15); |
| 2868 | swrm->wr_fifo_depth = ((swr_master_read(swrm, SWRM_COMP_PARAMS) |
| 2869 | & SWRM_COMP_PARAMS_WR_FIFO_DEPTH) >> 10); |
| 2870 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 2871 | #ifdef CONFIG_DEBUG_FS |
| 2872 | swrm->debugfs_swrm_dent = debugfs_create_dir(dev_name(&pdev->dev), 0); |
| 2873 | if (!IS_ERR(swrm->debugfs_swrm_dent)) { |
| 2874 | swrm->debugfs_peek = debugfs_create_file("swrm_peek", |
| 2875 | S_IFREG | 0444, swrm->debugfs_swrm_dent, |
| 2876 | (void *) swrm, &swrm_debug_read_ops); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2877 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 2878 | swrm->debugfs_poke = debugfs_create_file("swrm_poke", |
| 2879 | S_IFREG | 0444, swrm->debugfs_swrm_dent, |
| 2880 | (void *) swrm, &swrm_debug_write_ops); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2881 | |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 2882 | swrm->debugfs_reg_dump = debugfs_create_file("swrm_reg_dump", |
| 2883 | S_IFREG | 0444, swrm->debugfs_swrm_dent, |
| 2884 | (void *) swrm, |
| 2885 | &swrm_debug_dump_ops); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2886 | } |
Sudheer Papothi | 96c842a | 2019-08-29 12:11:21 +0530 | [diff] [blame] | 2887 | #endif |
Vatsal Bucha | df38c3e | 2019-03-11 17:10:23 +0530 | [diff] [blame] | 2888 | ret = device_init_wakeup(swrm->dev, true); |
| 2889 | if (ret) { |
| 2890 | dev_err(swrm->dev, "Device wakeup init failed: %d\n", ret); |
| 2891 | goto err_irq_wakeup_fail; |
| 2892 | } |
| 2893 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2894 | pm_runtime_set_autosuspend_delay(&pdev->dev, auto_suspend_timer); |
| 2895 | pm_runtime_use_autosuspend(&pdev->dev); |
| 2896 | pm_runtime_set_active(&pdev->dev); |
| 2897 | pm_runtime_enable(&pdev->dev); |
| 2898 | pm_runtime_mark_last_busy(&pdev->dev); |
| 2899 | |
Ramprasad Katkam | 68765ab | 2018-08-30 11:46:32 +0530 | [diff] [blame] | 2900 | INIT_WORK(&swrm->dc_presence_work, swrm_notify_work_fn); |
| 2901 | swrm->event_notifier.notifier_call = swrm_event_notify; |
| 2902 | msm_aud_evt_register_client(&swrm->event_notifier); |
| 2903 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2904 | return 0; |
Vatsal Bucha | df38c3e | 2019-03-11 17:10:23 +0530 | [diff] [blame] | 2905 | err_irq_wakeup_fail: |
| 2906 | device_init_wakeup(swrm->dev, false); |
Laxminath Kasam | ec8c909 | 2019-12-17 13:12:58 +0530 | [diff] [blame] | 2907 | err_mstr_init_fail: |
| 2908 | swr_unregister_master(&swrm->master); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2909 | err_mstr_fail: |
Laxminath Kasam | 3695642 | 2020-06-01 19:23:48 +0530 | [diff] [blame] | 2910 | if (swrm->reg_irq) { |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2911 | swrm->reg_irq(swrm->handle, swr_mstr_interrupt, |
| 2912 | swrm, SWR_IRQ_FREE); |
Laxminath Kasam | 3695642 | 2020-06-01 19:23:48 +0530 | [diff] [blame] | 2913 | } else if (swrm->irq) { |
Vatsal Bucha | 9dd9516 | 2020-06-18 08:57:27 +0530 | [diff] [blame] | 2914 | if (irq_get_irq_data(swrm->irq) != NULL) |
| 2915 | irqd_set_trigger_type( |
| 2916 | irq_get_irq_data(swrm->irq), |
| 2917 | IRQ_TYPE_NONE); |
| 2918 | if (swrm->swr_irq_wakeup_capable) |
| 2919 | irq_set_irq_wake(swrm->irq, 0); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2920 | free_irq(swrm->irq, swrm); |
Laxminath Kasam | 3695642 | 2020-06-01 19:23:48 +0530 | [diff] [blame] | 2921 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2922 | err_irq_fail: |
Vatsal Bucha | 8bcaeab | 2019-10-31 11:45:36 +0530 | [diff] [blame] | 2923 | mutex_destroy(&swrm->irq_lock); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2924 | mutex_destroy(&swrm->mlock); |
| 2925 | mutex_destroy(&swrm->reslock); |
| 2926 | mutex_destroy(&swrm->force_down_lock); |
Ramprasad Katkam | 1f22126 | 2018-08-23 15:01:22 +0530 | [diff] [blame] | 2927 | mutex_destroy(&swrm->iolock); |
Ramprasad Katkam | 6bce2e7 | 2018-10-10 19:20:13 +0530 | [diff] [blame] | 2928 | mutex_destroy(&swrm->clklock); |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2929 | mutex_destroy(&swrm->pm_lock); |
| 2930 | pm_qos_remove_request(&swrm->pm_qos_req); |
| 2931 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2932 | err_pdata_fail: |
| 2933 | err_memory_fail: |
| 2934 | return ret; |
| 2935 | } |
| 2936 | |
| 2937 | static int swrm_remove(struct platform_device *pdev) |
| 2938 | { |
| 2939 | struct swr_mstr_ctrl *swrm = platform_get_drvdata(pdev); |
| 2940 | |
Laxminath Kasam | 3695642 | 2020-06-01 19:23:48 +0530 | [diff] [blame] | 2941 | if (swrm->reg_irq) { |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2942 | swrm->reg_irq(swrm->handle, swr_mstr_interrupt, |
| 2943 | swrm, SWR_IRQ_FREE); |
Laxminath Kasam | 3695642 | 2020-06-01 19:23:48 +0530 | [diff] [blame] | 2944 | } else if (swrm->irq) { |
Vatsal Bucha | 9dd9516 | 2020-06-18 08:57:27 +0530 | [diff] [blame] | 2945 | if (irq_get_irq_data(swrm->irq) != NULL) |
| 2946 | irqd_set_trigger_type( |
| 2947 | irq_get_irq_data(swrm->irq), |
| 2948 | IRQ_TYPE_NONE); |
| 2949 | if (swrm->swr_irq_wakeup_capable) |
| 2950 | irq_set_irq_wake(swrm->irq, 0); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2951 | free_irq(swrm->irq, swrm); |
Laxminath Kasam | 3695642 | 2020-06-01 19:23:48 +0530 | [diff] [blame] | 2952 | } else if (swrm->wake_irq > 0) { |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 2953 | free_irq(swrm->wake_irq, swrm); |
Laxminath Kasam | 3695642 | 2020-06-01 19:23:48 +0530 | [diff] [blame] | 2954 | } |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2955 | cancel_work_sync(&swrm->wakeup_work); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2956 | pm_runtime_disable(&pdev->dev); |
| 2957 | pm_runtime_set_suspended(&pdev->dev); |
| 2958 | swr_unregister_master(&swrm->master); |
Ramprasad Katkam | 68765ab | 2018-08-30 11:46:32 +0530 | [diff] [blame] | 2959 | msm_aud_evt_unregister_client(&swrm->event_notifier); |
Vatsal Bucha | df38c3e | 2019-03-11 17:10:23 +0530 | [diff] [blame] | 2960 | device_init_wakeup(swrm->dev, false); |
Vatsal Bucha | 8bcaeab | 2019-10-31 11:45:36 +0530 | [diff] [blame] | 2961 | mutex_destroy(&swrm->irq_lock); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2962 | mutex_destroy(&swrm->mlock); |
| 2963 | mutex_destroy(&swrm->reslock); |
Ramprasad Katkam | 6bce2e7 | 2018-10-10 19:20:13 +0530 | [diff] [blame] | 2964 | mutex_destroy(&swrm->iolock); |
| 2965 | mutex_destroy(&swrm->clklock); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2966 | mutex_destroy(&swrm->force_down_lock); |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 2967 | mutex_destroy(&swrm->pm_lock); |
| 2968 | pm_qos_remove_request(&swrm->pm_qos_req); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2969 | devm_kfree(&pdev->dev, swrm); |
| 2970 | return 0; |
| 2971 | } |
| 2972 | |
| 2973 | static int swrm_clk_pause(struct swr_mstr_ctrl *swrm) |
| 2974 | { |
| 2975 | u32 val; |
| 2976 | |
| 2977 | dev_dbg(swrm->dev, "%s: state: %d\n", __func__, swrm->state); |
| 2978 | swr_master_write(swrm, SWRM_INTERRUPT_MASK_ADDR, 0x1FDFD); |
| 2979 | val = swr_master_read(swrm, SWRM_MCP_CFG_ADDR); |
| 2980 | val |= SWRM_MCP_CFG_BUS_CLK_PAUSE_BMSK; |
| 2981 | swr_master_write(swrm, SWRM_MCP_CFG_ADDR, val); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2982 | |
| 2983 | return 0; |
| 2984 | } |
| 2985 | |
| 2986 | #ifdef CONFIG_PM |
| 2987 | static int swrm_runtime_resume(struct device *dev) |
| 2988 | { |
| 2989 | struct platform_device *pdev = to_platform_device(dev); |
| 2990 | struct swr_mstr_ctrl *swrm = platform_get_drvdata(pdev); |
| 2991 | int ret = 0; |
Vatsal Bucha | e50b500 | 2019-09-19 14:32:20 +0530 | [diff] [blame] | 2992 | bool swrm_clk_req_err = false; |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 2993 | bool hw_core_err = false; |
Laxminath Kasam | 2ffc69e | 2020-06-16 20:15:26 +0530 | [diff] [blame] | 2994 | bool aud_core_err = false; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 2995 | struct swr_master *mstr = &swrm->master; |
| 2996 | struct swr_device *swr_dev; |
| 2997 | |
| 2998 | dev_dbg(dev, "%s: pm_runtime: resume, state:%d\n", |
| 2999 | __func__, swrm->state); |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3000 | trace_printk("%s: pm_runtime: resume, state:%d\n", |
| 3001 | __func__, swrm->state); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3002 | mutex_lock(&swrm->reslock); |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 3003 | |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 3004 | if (swrm_request_hw_vote(swrm, LPASS_HW_CORE, true)) { |
| 3005 | dev_err(dev, "%s:lpass core hw enable failed\n", |
| 3006 | __func__); |
| 3007 | hw_core_err = true; |
| 3008 | } |
| 3009 | if (swrm_request_hw_vote(swrm, LPASS_AUDIO_CORE, true)) { |
| 3010 | dev_err(dev, "%s:lpass audio hw enable failed\n", |
| 3011 | __func__); |
Laxminath Kasam | 2ffc69e | 2020-06-16 20:15:26 +0530 | [diff] [blame] | 3012 | aud_core_err = true; |
Karthikeyan Mani | f682190 | 2019-05-21 17:31:24 -0700 | [diff] [blame] | 3013 | } |
Sudheer Papothi | 66d6fd1 | 2019-03-27 17:34:48 +0530 | [diff] [blame] | 3014 | |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 3015 | if ((swrm->state == SWR_MSTR_DOWN) || |
| 3016 | (swrm->state == SWR_MSTR_SSR && swrm->dev_up)) { |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 3017 | if (swrm->clk_stop_mode0_supp) { |
Vatsal Bucha | 8bcaeab | 2019-10-31 11:45:36 +0530 | [diff] [blame] | 3018 | if (swrm->wake_irq > 0) { |
| 3019 | if (unlikely(!irq_get_irq_data |
| 3020 | (swrm->wake_irq))) { |
| 3021 | pr_err("%s: irq data is NULL\n", |
| 3022 | __func__); |
| 3023 | mutex_unlock(&swrm->reslock); |
| 3024 | return IRQ_NONE; |
| 3025 | } |
| 3026 | mutex_lock(&swrm->irq_lock); |
| 3027 | if (!irqd_irq_disabled( |
| 3028 | irq_get_irq_data(swrm->wake_irq))) |
| 3029 | disable_irq_nosync(swrm->wake_irq); |
| 3030 | mutex_unlock(&swrm->irq_lock); |
| 3031 | } |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 3032 | if (swrm->ipc_wakeup) |
| 3033 | msm_aud_evt_blocking_notifier_call_chain( |
| 3034 | SWR_WAKE_IRQ_DEREGISTER, (void *)swrm); |
Laxminath Kasam | f0128ef | 2018-08-31 15:15:09 +0530 | [diff] [blame] | 3035 | } |
| 3036 | |
Vatsal Bucha | 63b193f | 2019-08-12 11:56:55 +0530 | [diff] [blame] | 3037 | if (swrm_clk_request(swrm, true)) { |
| 3038 | /* |
| 3039 | * Set autosuspend timer to 1 for |
| 3040 | * master to enter into suspend. |
| 3041 | */ |
Vatsal Bucha | e50b500 | 2019-09-19 14:32:20 +0530 | [diff] [blame] | 3042 | swrm_clk_req_err = true; |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 3043 | goto exit; |
Vatsal Bucha | 63b193f | 2019-08-12 11:56:55 +0530 | [diff] [blame] | 3044 | } |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 3045 | if (!swrm->clk_stop_mode0_supp || swrm->state == SWR_MSTR_SSR) { |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 3046 | list_for_each_entry(swr_dev, &mstr->devices, dev_list) { |
| 3047 | ret = swr_device_up(swr_dev); |
Sudheer Papothi | 79c9075 | 2019-04-23 06:09:52 +0530 | [diff] [blame] | 3048 | if (ret == -ENODEV) { |
| 3049 | dev_dbg(dev, |
| 3050 | "%s slave device up not implemented\n", |
| 3051 | __func__); |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3052 | trace_printk( |
| 3053 | "%s slave device up not implemented\n", |
| 3054 | __func__); |
Sudheer Papothi | 79c9075 | 2019-04-23 06:09:52 +0530 | [diff] [blame] | 3055 | ret = 0; |
| 3056 | } else if (ret) { |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 3057 | dev_err(dev, |
| 3058 | "%s: failed to wakeup swr dev %d\n", |
| 3059 | __func__, swr_dev->dev_num); |
| 3060 | swrm_clk_request(swrm, false); |
| 3061 | goto exit; |
| 3062 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3063 | } |
Ramprasad Katkam | 48b49b2 | 2018-10-01 20:12:46 +0530 | [diff] [blame] | 3064 | swr_master_write(swrm, SWRM_COMP_SW_RESET, 0x01); |
| 3065 | swr_master_write(swrm, SWRM_COMP_SW_RESET, 0x01); |
| 3066 | swrm_master_init(swrm); |
Ramprasad Katkam | 2e85a54 | 2019-04-26 18:28:31 +0530 | [diff] [blame] | 3067 | /* wait for hw enumeration to complete */ |
| 3068 | usleep_range(100, 105); |
Laxminath Kasam | e229197 | 2019-11-08 14:51:59 +0530 | [diff] [blame] | 3069 | if (!swrm_check_link_status(swrm, 0x1)) |
Laxminath Kasam | 696b14b | 2019-12-03 22:07:34 +0530 | [diff] [blame] | 3070 | dev_dbg(dev, "%s:failed in connecting, ssr?\n", |
| 3071 | __func__); |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 3072 | swrm_cmd_fifo_wr_cmd(swrm, 0x4, 0xF, 0x0, |
| 3073 | SWRS_SCP_INT_STATUS_MASK_1); |
Karthikeyan Mani | f682190 | 2019-05-21 17:31:24 -0700 | [diff] [blame] | 3074 | if (swrm->state == SWR_MSTR_SSR) { |
| 3075 | mutex_unlock(&swrm->reslock); |
| 3076 | enable_bank_switch(swrm, 0, SWR_ROW_50, SWR_MIN_COL); |
| 3077 | mutex_lock(&swrm->reslock); |
| 3078 | } |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 3079 | } else { |
| 3080 | /*wake up from clock stop*/ |
| 3081 | swr_master_write(swrm, SWRM_MCP_BUS_CTRL_ADDR, 0x2); |
Sudheer Papothi | 55fa597 | 2019-09-28 02:50:27 +0530 | [diff] [blame] | 3082 | /* clear and enable bus clash interrupt */ |
| 3083 | swr_master_write(swrm, SWRM_INTERRUPT_CLEAR, 0x08); |
| 3084 | swrm->intr_mask |= 0x08; |
| 3085 | swr_master_write(swrm, SWRM_INTERRUPT_MASK_ADDR, |
| 3086 | swrm->intr_mask); |
| 3087 | swr_master_write(swrm, |
| 3088 | SWR_MSTR_RX_SWRM_CPU_INTERRUPT_EN, |
| 3089 | swrm->intr_mask); |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 3090 | usleep_range(100, 105); |
Laxminath Kasam | e229197 | 2019-11-08 14:51:59 +0530 | [diff] [blame] | 3091 | if (!swrm_check_link_status(swrm, 0x1)) |
Laxminath Kasam | 696b14b | 2019-12-03 22:07:34 +0530 | [diff] [blame] | 3092 | dev_dbg(dev, "%s:failed in connecting, ssr?\n", |
| 3093 | __func__); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3094 | } |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 3095 | swrm->state = SWR_MSTR_UP; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3096 | } |
| 3097 | exit: |
Laxminath Kasam | 2ffc69e | 2020-06-16 20:15:26 +0530 | [diff] [blame] | 3098 | if (!aud_core_err) |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 3099 | swrm_request_hw_vote(swrm, LPASS_AUDIO_CORE, false); |
| 3100 | if (!hw_core_err) |
| 3101 | swrm_request_hw_vote(swrm, LPASS_HW_CORE, false); |
Laxminath Kasam | 70b1077 | 2020-10-22 09:29:59 +0530 | [diff] [blame] | 3102 | if (swrm_clk_req_err || aud_core_err || hw_core_err) |
Vatsal Bucha | e50b500 | 2019-09-19 14:32:20 +0530 | [diff] [blame] | 3103 | pm_runtime_set_autosuspend_delay(&pdev->dev, |
| 3104 | ERR_AUTO_SUSPEND_TIMER_VAL); |
| 3105 | else |
| 3106 | pm_runtime_set_autosuspend_delay(&pdev->dev, |
| 3107 | auto_suspend_timer); |
Vatsal Bucha | bd68a7c | 2020-06-08 10:41:56 +0530 | [diff] [blame] | 3108 | if (swrm->req_clk_switch) |
| 3109 | swrm->req_clk_switch = false; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3110 | mutex_unlock(&swrm->reslock); |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 3111 | |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3112 | trace_printk("%s: pm_runtime: resume done, state:%d\n", |
| 3113 | __func__, swrm->state); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3114 | return ret; |
| 3115 | } |
| 3116 | |
| 3117 | static int swrm_runtime_suspend(struct device *dev) |
| 3118 | { |
| 3119 | struct platform_device *pdev = to_platform_device(dev); |
| 3120 | struct swr_mstr_ctrl *swrm = platform_get_drvdata(pdev); |
| 3121 | int ret = 0; |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 3122 | bool hw_core_err = false; |
Laxminath Kasam | 2ffc69e | 2020-06-16 20:15:26 +0530 | [diff] [blame] | 3123 | bool aud_core_err = false; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3124 | struct swr_master *mstr = &swrm->master; |
| 3125 | struct swr_device *swr_dev; |
| 3126 | int current_state = 0; |
| 3127 | |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3128 | trace_printk("%s: pm_runtime: suspend state: %d\n", |
| 3129 | __func__, swrm->state); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3130 | dev_dbg(dev, "%s: pm_runtime: suspend state: %d\n", |
| 3131 | __func__, swrm->state); |
Laxminath Kasam | 70b1077 | 2020-10-22 09:29:59 +0530 | [diff] [blame] | 3132 | if (swrm->state == SWR_MSTR_SSR_RESET) { |
| 3133 | swrm->state = SWR_MSTR_SSR; |
| 3134 | return 0; |
| 3135 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3136 | mutex_lock(&swrm->reslock); |
| 3137 | mutex_lock(&swrm->force_down_lock); |
| 3138 | current_state = swrm->state; |
| 3139 | mutex_unlock(&swrm->force_down_lock); |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 3140 | |
| 3141 | if (swrm_request_hw_vote(swrm, LPASS_HW_CORE, true)) { |
| 3142 | dev_err(dev, "%s:lpass core hw enable failed\n", |
| 3143 | __func__); |
| 3144 | hw_core_err = true; |
| 3145 | } |
Laxminath Kasam | 2ffc69e | 2020-06-16 20:15:26 +0530 | [diff] [blame] | 3146 | if (swrm_request_hw_vote(swrm, LPASS_AUDIO_CORE, true)) { |
| 3147 | dev_err(dev, "%s:lpass audio hw enable failed\n", |
| 3148 | __func__); |
| 3149 | aud_core_err = true; |
| 3150 | } |
Sudheer Papothi | 66d6fd1 | 2019-03-27 17:34:48 +0530 | [diff] [blame] | 3151 | |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 3152 | if ((current_state == SWR_MSTR_UP) || |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3153 | (current_state == SWR_MSTR_SSR)) { |
| 3154 | |
| 3155 | if ((current_state != SWR_MSTR_SSR) && |
| 3156 | swrm_is_port_en(&swrm->master)) { |
| 3157 | dev_dbg(dev, "%s ports are enabled\n", __func__); |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3158 | trace_printk("%s ports are enabled\n", __func__); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3159 | ret = -EBUSY; |
| 3160 | goto exit; |
| 3161 | } |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 3162 | if (!swrm->clk_stop_mode0_supp || swrm->state == SWR_MSTR_SSR) { |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3163 | dev_err(dev, "%s: clk stop mode not supported or SSR entry\n", |
| 3164 | __func__); |
Sudheer Papothi | 06f4341 | 2019-07-09 03:32:54 +0530 | [diff] [blame] | 3165 | mutex_unlock(&swrm->reslock); |
Ramprasad Katkam | b4c7c68 | 2018-12-19 18:58:36 +0530 | [diff] [blame] | 3166 | enable_bank_switch(swrm, 0, SWR_ROW_50, SWR_MIN_COL); |
Sudheer Papothi | 06f4341 | 2019-07-09 03:32:54 +0530 | [diff] [blame] | 3167 | mutex_lock(&swrm->reslock); |
Sudheer Papothi | 1f2565b | 2020-01-30 05:22:47 +0530 | [diff] [blame] | 3168 | if (!swrm->clk_stop_mode0_supp) { |
| 3169 | swrm_clk_pause(swrm); |
| 3170 | } else { |
| 3171 | /* Mask bus clash interrupt */ |
| 3172 | swrm->intr_mask &= ~((u32)0x08); |
| 3173 | swr_master_write(swrm, |
| 3174 | SWRM_INTERRUPT_MASK_ADDR, |
| 3175 | swrm->intr_mask); |
| 3176 | swr_master_write(swrm, |
| 3177 | SWR_MSTR_RX_SWRM_CPU_INTERRUPT_EN, |
| 3178 | swrm->intr_mask); |
| 3179 | mutex_unlock(&swrm->reslock); |
| 3180 | /* clock stop sequence */ |
| 3181 | swrm_cmd_fifo_wr_cmd(swrm, 0x2, 0xF, 0xF, |
| 3182 | SWRS_SCP_CONTROL); |
| 3183 | mutex_lock(&swrm->reslock); |
| 3184 | } |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 3185 | swr_master_write(swrm, SWRM_COMP_CFG_ADDR, 0x00); |
| 3186 | list_for_each_entry(swr_dev, &mstr->devices, dev_list) { |
| 3187 | ret = swr_device_down(swr_dev); |
Sudheer Papothi | 79c9075 | 2019-04-23 06:09:52 +0530 | [diff] [blame] | 3188 | if (ret == -ENODEV) { |
| 3189 | dev_dbg_ratelimited(dev, |
| 3190 | "%s slave device down not implemented\n", |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3191 | __func__); |
| 3192 | trace_printk( |
| 3193 | "%s slave device down not implemented\n", |
| 3194 | __func__); |
Sudheer Papothi | 79c9075 | 2019-04-23 06:09:52 +0530 | [diff] [blame] | 3195 | ret = 0; |
| 3196 | } else if (ret) { |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 3197 | dev_err(dev, |
| 3198 | "%s: failed to shutdown swr dev %d\n", |
| 3199 | __func__, swr_dev->dev_num); |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3200 | trace_printk( |
| 3201 | "%s: failed to shutdown swr dev %d\n", |
| 3202 | __func__, swr_dev->dev_num); |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 3203 | goto exit; |
| 3204 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3205 | } |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3206 | trace_printk("%s: clk stop mode not supported or SSR exit\n", |
| 3207 | __func__); |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 3208 | } else { |
Sudheer Papothi | 55fa597 | 2019-09-28 02:50:27 +0530 | [diff] [blame] | 3209 | /* Mask bus clash interrupt */ |
| 3210 | swrm->intr_mask &= ~((u32)0x08); |
| 3211 | swr_master_write(swrm, SWRM_INTERRUPT_MASK_ADDR, |
| 3212 | swrm->intr_mask); |
| 3213 | swr_master_write(swrm, |
| 3214 | SWR_MSTR_RX_SWRM_CPU_INTERRUPT_EN, |
| 3215 | swrm->intr_mask); |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 3216 | mutex_unlock(&swrm->reslock); |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 3217 | /* clock stop sequence */ |
| 3218 | swrm_cmd_fifo_wr_cmd(swrm, 0x2, 0xF, 0xF, |
| 3219 | SWRS_SCP_CONTROL); |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 3220 | mutex_lock(&swrm->reslock); |
Ramprasad Katkam | 14f47cc | 2018-07-25 17:20:18 +0530 | [diff] [blame] | 3221 | usleep_range(100, 105); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3222 | } |
Laxminath Kasam | cafe073 | 2019-11-20 17:31:58 +0530 | [diff] [blame] | 3223 | if (!swrm_check_link_status(swrm, 0x0)) |
Laxminath Kasam | 696b14b | 2019-12-03 22:07:34 +0530 | [diff] [blame] | 3224 | dev_dbg(dev, "%s:failed in disconnecting, ssr?\n", |
| 3225 | __func__); |
Karthikeyan Mani | 1d750fe | 2019-09-06 14:36:09 -0700 | [diff] [blame] | 3226 | ret = swrm_clk_request(swrm, false); |
| 3227 | if (ret) { |
| 3228 | dev_err(dev, "%s: swrmn clk failed\n", __func__); |
| 3229 | ret = 0; |
| 3230 | goto exit; |
| 3231 | } |
Ramprasad Katkam | 6a3050d | 2018-10-10 02:08:00 +0530 | [diff] [blame] | 3232 | |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 3233 | if (swrm->clk_stop_mode0_supp) { |
| 3234 | if (swrm->wake_irq > 0) { |
| 3235 | enable_irq(swrm->wake_irq); |
| 3236 | } else if (swrm->ipc_wakeup) { |
| 3237 | msm_aud_evt_blocking_notifier_call_chain( |
| 3238 | SWR_WAKE_IRQ_REGISTER, (void *)swrm); |
| 3239 | swrm->ipc_wakeup_triggered = false; |
| 3240 | } |
Ramprasad Katkam | 6a3050d | 2018-10-10 02:08:00 +0530 | [diff] [blame] | 3241 | } |
| 3242 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3243 | } |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 3244 | /* Retain SSR state until resume */ |
| 3245 | if (current_state != SWR_MSTR_SSR) |
| 3246 | swrm->state = SWR_MSTR_DOWN; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3247 | exit: |
Laxminath Kasam | 2ffc69e | 2020-06-16 20:15:26 +0530 | [diff] [blame] | 3248 | if (!aud_core_err) |
Sudheer Papothi | 384addd | 2019-06-14 02:26:52 +0530 | [diff] [blame] | 3249 | swrm_request_hw_vote(swrm, LPASS_AUDIO_CORE, false); |
| 3250 | if (!hw_core_err) |
| 3251 | swrm_request_hw_vote(swrm, LPASS_HW_CORE, false); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3252 | mutex_unlock(&swrm->reslock); |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3253 | trace_printk("%s: pm_runtime: suspend done state: %d\n", |
| 3254 | __func__, swrm->state); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3255 | return ret; |
| 3256 | } |
| 3257 | #endif /* CONFIG_PM */ |
| 3258 | |
Sudheer Papothi | 06f4341 | 2019-07-09 03:32:54 +0530 | [diff] [blame] | 3259 | static int swrm_device_suspend(struct device *dev) |
| 3260 | { |
| 3261 | struct platform_device *pdev = to_platform_device(dev); |
| 3262 | struct swr_mstr_ctrl *swrm = platform_get_drvdata(pdev); |
| 3263 | int ret = 0; |
| 3264 | |
| 3265 | dev_dbg(dev, "%s: swrm state: %d\n", __func__, swrm->state); |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3266 | trace_printk("%s: swrm state: %d\n", __func__, swrm->state); |
Sudheer Papothi | 06f4341 | 2019-07-09 03:32:54 +0530 | [diff] [blame] | 3267 | if (!pm_runtime_enabled(dev) || !pm_runtime_suspended(dev)) { |
| 3268 | ret = swrm_runtime_suspend(dev); |
| 3269 | if (!ret) { |
| 3270 | pm_runtime_disable(dev); |
| 3271 | pm_runtime_set_suspended(dev); |
| 3272 | pm_runtime_enable(dev); |
| 3273 | } |
| 3274 | } |
| 3275 | |
| 3276 | return 0; |
| 3277 | } |
| 3278 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3279 | static int swrm_device_down(struct device *dev) |
| 3280 | { |
| 3281 | struct platform_device *pdev = to_platform_device(dev); |
| 3282 | struct swr_mstr_ctrl *swrm = platform_get_drvdata(pdev); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3283 | |
| 3284 | dev_dbg(dev, "%s: swrm state: %d\n", __func__, swrm->state); |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3285 | trace_printk("%s: swrm state: %d\n", __func__, swrm->state); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3286 | |
| 3287 | mutex_lock(&swrm->force_down_lock); |
| 3288 | swrm->state = SWR_MSTR_SSR; |
| 3289 | mutex_unlock(&swrm->force_down_lock); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3290 | |
Ramprasad Katkam | 2e85a54 | 2019-04-26 18:28:31 +0530 | [diff] [blame] | 3291 | swrm_device_suspend(dev); |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 3292 | return 0; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3293 | } |
| 3294 | |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 3295 | int swrm_register_wake_irq(struct swr_mstr_ctrl *swrm) |
| 3296 | { |
| 3297 | int ret = 0; |
Laxminath Kasam | a60239e | 2019-01-10 14:43:03 +0530 | [diff] [blame] | 3298 | int irq, dir_apps_irq; |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 3299 | |
| 3300 | if (!swrm->ipc_wakeup) { |
Laxminath Kasam | a60239e | 2019-01-10 14:43:03 +0530 | [diff] [blame] | 3301 | irq = of_get_named_gpio(swrm->dev->of_node, |
| 3302 | "qcom,swr-wakeup-irq", 0); |
| 3303 | if (gpio_is_valid(irq)) { |
| 3304 | swrm->wake_irq = gpio_to_irq(irq); |
| 3305 | if (swrm->wake_irq < 0) { |
| 3306 | dev_err(swrm->dev, |
| 3307 | "Unable to configure irq\n"); |
| 3308 | return swrm->wake_irq; |
| 3309 | } |
| 3310 | } else { |
| 3311 | dir_apps_irq = platform_get_irq_byname(swrm->pdev, |
| 3312 | "swr_wake_irq"); |
| 3313 | if (dir_apps_irq < 0) { |
| 3314 | dev_err(swrm->dev, |
| 3315 | "TLMM connect gpio not found\n"); |
| 3316 | return -EINVAL; |
| 3317 | } |
| 3318 | swrm->wake_irq = dir_apps_irq; |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 3319 | } |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 3320 | ret = request_threaded_irq(swrm->wake_irq, NULL, |
| 3321 | swrm_wakeup_interrupt, |
| 3322 | IRQF_TRIGGER_HIGH | IRQF_ONESHOT, |
| 3323 | "swr_wake_irq", swrm); |
| 3324 | if (ret) { |
| 3325 | dev_err(swrm->dev, "%s: Failed to request irq %d\n", |
| 3326 | __func__, ret); |
| 3327 | return -EINVAL; |
| 3328 | } |
Aditya Bavanari | 3517b11 | 2018-12-03 13:26:59 +0530 | [diff] [blame] | 3329 | irq_set_irq_wake(swrm->wake_irq, 1); |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 3330 | } |
| 3331 | return ret; |
| 3332 | } |
| 3333 | |
Sudheer Papothi | 3d1596e | 2018-10-27 06:19:18 +0530 | [diff] [blame] | 3334 | static int swrm_alloc_port_mem(struct device *dev, struct swr_mstr_ctrl *swrm, |
| 3335 | u32 uc, u32 size) |
| 3336 | { |
| 3337 | if (!swrm->port_param) { |
| 3338 | swrm->port_param = devm_kzalloc(dev, |
| 3339 | sizeof(swrm->port_param) * SWR_UC_MAX, |
| 3340 | GFP_KERNEL); |
| 3341 | if (!swrm->port_param) |
| 3342 | return -ENOMEM; |
| 3343 | } |
| 3344 | if (!swrm->port_param[uc]) { |
| 3345 | swrm->port_param[uc] = devm_kcalloc(dev, size, |
| 3346 | sizeof(struct port_params), |
| 3347 | GFP_KERNEL); |
| 3348 | if (!swrm->port_param[uc]) |
| 3349 | return -ENOMEM; |
| 3350 | } else { |
| 3351 | dev_err_ratelimited(swrm->dev, "%s: called more than once\n", |
| 3352 | __func__); |
| 3353 | } |
| 3354 | |
| 3355 | return 0; |
| 3356 | } |
| 3357 | |
| 3358 | static int swrm_copy_port_config(struct swr_mstr_ctrl *swrm, |
| 3359 | struct swrm_port_config *port_cfg, |
| 3360 | u32 size) |
| 3361 | { |
| 3362 | int idx; |
| 3363 | struct port_params *params; |
| 3364 | int uc = port_cfg->uc; |
| 3365 | int ret = 0; |
| 3366 | |
| 3367 | for (idx = 0; idx < size; idx++) { |
| 3368 | params = &((struct port_params *)port_cfg->params)[idx]; |
| 3369 | if (!params) { |
| 3370 | dev_err(swrm->dev, "%s: Invalid params\n", __func__); |
| 3371 | ret = -EINVAL; |
| 3372 | break; |
| 3373 | } |
| 3374 | memcpy(&swrm->port_param[uc][idx], params, |
| 3375 | sizeof(struct port_params)); |
| 3376 | } |
| 3377 | |
| 3378 | return ret; |
| 3379 | } |
| 3380 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3381 | /** |
| 3382 | * swrm_wcd_notify - parent device can notify to soundwire master through |
| 3383 | * this function |
| 3384 | * @pdev: pointer to platform device structure |
| 3385 | * @id: command id from parent to the soundwire master |
| 3386 | * @data: data from parent device to soundwire master |
| 3387 | */ |
| 3388 | int swrm_wcd_notify(struct platform_device *pdev, u32 id, void *data) |
| 3389 | { |
| 3390 | struct swr_mstr_ctrl *swrm; |
| 3391 | int ret = 0; |
| 3392 | struct swr_master *mstr; |
| 3393 | struct swr_device *swr_dev; |
Sudheer Papothi | 3d1596e | 2018-10-27 06:19:18 +0530 | [diff] [blame] | 3394 | struct swrm_port_config *port_cfg; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3395 | |
| 3396 | if (!pdev) { |
| 3397 | pr_err("%s: pdev is NULL\n", __func__); |
| 3398 | return -EINVAL; |
| 3399 | } |
| 3400 | swrm = platform_get_drvdata(pdev); |
| 3401 | if (!swrm) { |
| 3402 | dev_err(&pdev->dev, "%s: swrm is NULL\n", __func__); |
| 3403 | return -EINVAL; |
| 3404 | } |
| 3405 | mstr = &swrm->master; |
| 3406 | |
| 3407 | switch (id) { |
Sudheer Papothi | 06f4341 | 2019-07-09 03:32:54 +0530 | [diff] [blame] | 3408 | case SWR_REQ_CLK_SWITCH: |
| 3409 | /* This will put soundwire in clock stop mode and disable the |
| 3410 | * clocks, if there is no active usecase running, so that the |
| 3411 | * next activity on soundwire will request clock from new clock |
| 3412 | * source. |
| 3413 | */ |
Sudheer Papothi | 8c50f2f | 2019-12-05 01:14:47 +0530 | [diff] [blame] | 3414 | if (!data) { |
| 3415 | dev_err(swrm->dev, "%s: data is NULL for id:%d\n", |
| 3416 | __func__, id); |
| 3417 | ret = -EINVAL; |
| 3418 | break; |
| 3419 | } |
Sudheer Papothi | 06f4341 | 2019-07-09 03:32:54 +0530 | [diff] [blame] | 3420 | mutex_lock(&swrm->mlock); |
Sudheer Papothi | 8c50f2f | 2019-12-05 01:14:47 +0530 | [diff] [blame] | 3421 | if (swrm->clk_src != *(int *)data) { |
Vatsal Bucha | bd68a7c | 2020-06-08 10:41:56 +0530 | [diff] [blame] | 3422 | if (swrm->state == SWR_MSTR_UP) { |
| 3423 | swrm->req_clk_switch = true; |
Sudheer Papothi | 8c50f2f | 2019-12-05 01:14:47 +0530 | [diff] [blame] | 3424 | swrm_device_suspend(&pdev->dev); |
Vatsal Bucha | bd68a7c | 2020-06-08 10:41:56 +0530 | [diff] [blame] | 3425 | if (swrm->state == SWR_MSTR_UP) |
| 3426 | swrm->req_clk_switch = false; |
| 3427 | } |
Sudheer Papothi | 8c50f2f | 2019-12-05 01:14:47 +0530 | [diff] [blame] | 3428 | swrm->clk_src = *(int *)data; |
| 3429 | } |
Sudheer Papothi | 06f4341 | 2019-07-09 03:32:54 +0530 | [diff] [blame] | 3430 | mutex_unlock(&swrm->mlock); |
| 3431 | break; |
Laxminath Kasam | b0f27cd | 2018-09-06 12:17:11 +0530 | [diff] [blame] | 3432 | case SWR_CLK_FREQ: |
| 3433 | if (!data) { |
| 3434 | dev_err(swrm->dev, "%s: data is NULL\n", __func__); |
| 3435 | ret = -EINVAL; |
| 3436 | } else { |
| 3437 | mutex_lock(&swrm->mlock); |
Ramprasad Katkam | 2e85a54 | 2019-04-26 18:28:31 +0530 | [diff] [blame] | 3438 | if (swrm->mclk_freq != *(int *)data) { |
| 3439 | dev_dbg(swrm->dev, "%s: freq change: force mstr down\n", __func__); |
| 3440 | if (swrm->state == SWR_MSTR_DOWN) |
| 3441 | dev_dbg(swrm->dev, "%s:SWR master is already Down:%d\n", |
| 3442 | __func__, swrm->state); |
Sudheer Papothi | 8a8b12b | 2019-11-15 23:06:41 +0530 | [diff] [blame] | 3443 | else { |
| 3444 | swrm->mclk_freq = *(int *)data; |
| 3445 | swrm->bus_clk = swrm->mclk_freq; |
| 3446 | swrm_switch_frame_shape(swrm, |
| 3447 | swrm->bus_clk); |
Ramprasad Katkam | 2e85a54 | 2019-04-26 18:28:31 +0530 | [diff] [blame] | 3448 | swrm_device_suspend(&pdev->dev); |
Sudheer Papothi | 8a8b12b | 2019-11-15 23:06:41 +0530 | [diff] [blame] | 3449 | } |
Prasad Kumpatla | 386df4e | 2019-10-11 18:23:16 +0530 | [diff] [blame] | 3450 | /* |
| 3451 | * add delay to ensure clk release happen |
| 3452 | * if interrupt triggered for clk stop, |
| 3453 | * wait for it to exit |
| 3454 | */ |
| 3455 | usleep_range(10000, 10500); |
Ramprasad Katkam | 2e85a54 | 2019-04-26 18:28:31 +0530 | [diff] [blame] | 3456 | } |
Laxminath Kasam | b0f27cd | 2018-09-06 12:17:11 +0530 | [diff] [blame] | 3457 | swrm->mclk_freq = *(int *)data; |
Sudheer Papothi | ac0ae1c | 2019-10-17 05:38:40 +0530 | [diff] [blame] | 3458 | swrm->bus_clk = swrm->mclk_freq; |
Laxminath Kasam | b0f27cd | 2018-09-06 12:17:11 +0530 | [diff] [blame] | 3459 | mutex_unlock(&swrm->mlock); |
| 3460 | } |
| 3461 | break; |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 3462 | case SWR_DEVICE_SSR_DOWN: |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3463 | trace_printk("%s: swr device down called\n", __func__); |
Prasad Kumpatla | 71fef46 | 2020-01-31 21:38:58 +0530 | [diff] [blame] | 3464 | mutex_lock(&swrm->mlock); |
| 3465 | if (swrm->state == SWR_MSTR_DOWN) |
| 3466 | dev_dbg(swrm->dev, "%s:SWR master is already Down:%d\n", |
| 3467 | __func__, swrm->state); |
| 3468 | else |
| 3469 | swrm_device_down(&pdev->dev); |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 3470 | mutex_lock(&swrm->devlock); |
| 3471 | swrm->dev_up = false; |
Aditya Bavanari | bb981b7 | 2020-03-19 18:30:10 +0530 | [diff] [blame] | 3472 | swrm->hw_core_clk_en = 0; |
| 3473 | swrm->aud_core_clk_en = 0; |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 3474 | mutex_unlock(&swrm->devlock); |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 3475 | mutex_lock(&swrm->reslock); |
| 3476 | swrm->state = SWR_MSTR_SSR; |
| 3477 | mutex_unlock(&swrm->reslock); |
Prasad Kumpatla | 71fef46 | 2020-01-31 21:38:58 +0530 | [diff] [blame] | 3478 | mutex_unlock(&swrm->mlock); |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 3479 | break; |
| 3480 | case SWR_DEVICE_SSR_UP: |
Ramprasad Katkam | 6bce2e7 | 2018-10-10 19:20:13 +0530 | [diff] [blame] | 3481 | /* wait for clk voting to be zero */ |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3482 | trace_printk("%s: swr device up called\n", __func__); |
Ramprasad Katkam | 7f6462e | 2018-11-06 11:51:22 +0530 | [diff] [blame] | 3483 | reinit_completion(&swrm->clk_off_complete); |
Ramprasad Katkam | 6bce2e7 | 2018-10-10 19:20:13 +0530 | [diff] [blame] | 3484 | if (swrm->clk_ref_count && |
| 3485 | !wait_for_completion_timeout(&swrm->clk_off_complete, |
Ramprasad Katkam | c87efeb | 2018-12-12 19:26:19 +0530 | [diff] [blame] | 3486 | msecs_to_jiffies(500))) |
Ramprasad Katkam | 6bce2e7 | 2018-10-10 19:20:13 +0530 | [diff] [blame] | 3487 | dev_err(swrm->dev, "%s: clock voting not zero\n", |
| 3488 | __func__); |
| 3489 | |
Laxminath Kasam | 70b1077 | 2020-10-22 09:29:59 +0530 | [diff] [blame] | 3490 | if (swrm->state == SWR_MSTR_UP || |
| 3491 | pm_runtime_autosuspend_expiration(swrm->dev)) { |
| 3492 | swrm->state = SWR_MSTR_SSR_RESET; |
| 3493 | dev_dbg(swrm->dev, |
| 3494 | "%s:suspend swr if active at SSR up\n", |
| 3495 | __func__); |
| 3496 | pm_runtime_set_autosuspend_delay(swrm->dev, |
| 3497 | ERR_AUTO_SUSPEND_TIMER_VAL); |
| 3498 | usleep_range(50000, 50100); |
| 3499 | swrm->state = SWR_MSTR_SSR; |
| 3500 | } |
| 3501 | |
Laxminath Kasam | 1df09a8 | 2018-09-20 18:57:49 +0530 | [diff] [blame] | 3502 | mutex_lock(&swrm->devlock); |
| 3503 | swrm->dev_up = true; |
| 3504 | mutex_unlock(&swrm->devlock); |
| 3505 | break; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3506 | case SWR_DEVICE_DOWN: |
| 3507 | dev_dbg(swrm->dev, "%s: swr master down called\n", __func__); |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3508 | trace_printk("%s: swr master down called\n", __func__); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3509 | mutex_lock(&swrm->mlock); |
Ramprasad Katkam | 2a799b4 | 2018-10-04 20:23:28 +0530 | [diff] [blame] | 3510 | if (swrm->state == SWR_MSTR_DOWN) |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3511 | dev_dbg(swrm->dev, "%s:SWR master is already Down:%d\n", |
| 3512 | __func__, swrm->state); |
| 3513 | else |
| 3514 | swrm_device_down(&pdev->dev); |
| 3515 | mutex_unlock(&swrm->mlock); |
| 3516 | break; |
| 3517 | case SWR_DEVICE_UP: |
| 3518 | dev_dbg(swrm->dev, "%s: swr master up called\n", __func__); |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame] | 3519 | trace_printk("%s: swr master up called\n", __func__); |
Ramprasad Katkam | 0fed92f | 2018-11-08 14:22:22 +0530 | [diff] [blame] | 3520 | mutex_lock(&swrm->devlock); |
| 3521 | if (!swrm->dev_up) { |
| 3522 | dev_dbg(swrm->dev, "SSR not complete yet\n"); |
| 3523 | mutex_unlock(&swrm->devlock); |
| 3524 | return -EBUSY; |
| 3525 | } |
| 3526 | mutex_unlock(&swrm->devlock); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3527 | mutex_lock(&swrm->mlock); |
Ramprasad Katkam | 86c45e0 | 2018-10-16 19:31:51 +0530 | [diff] [blame] | 3528 | pm_runtime_mark_last_busy(&pdev->dev); |
| 3529 | pm_runtime_get_sync(&pdev->dev); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3530 | mutex_lock(&swrm->reslock); |
Ramprasad Katkam | 86c45e0 | 2018-10-16 19:31:51 +0530 | [diff] [blame] | 3531 | list_for_each_entry(swr_dev, &mstr->devices, dev_list) { |
| 3532 | ret = swr_reset_device(swr_dev); |
| 3533 | if (ret) { |
| 3534 | dev_err(swrm->dev, |
| 3535 | "%s: failed to reset swr device %d\n", |
| 3536 | __func__, swr_dev->dev_num); |
| 3537 | swrm_clk_request(swrm, false); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3538 | } |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3539 | } |
Ramprasad Katkam | 86c45e0 | 2018-10-16 19:31:51 +0530 | [diff] [blame] | 3540 | pm_runtime_mark_last_busy(&pdev->dev); |
| 3541 | pm_runtime_put_autosuspend(&pdev->dev); |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3542 | mutex_unlock(&swrm->reslock); |
| 3543 | mutex_unlock(&swrm->mlock); |
| 3544 | break; |
| 3545 | case SWR_SET_NUM_RX_CH: |
| 3546 | if (!data) { |
| 3547 | dev_err(swrm->dev, "%s: data is NULL\n", __func__); |
| 3548 | ret = -EINVAL; |
| 3549 | } else { |
| 3550 | mutex_lock(&swrm->mlock); |
| 3551 | swrm->num_rx_chs = *(int *)data; |
| 3552 | if ((swrm->num_rx_chs > 1) && !swrm->num_cfg_devs) { |
| 3553 | list_for_each_entry(swr_dev, &mstr->devices, |
| 3554 | dev_list) { |
| 3555 | ret = swr_set_device_group(swr_dev, |
| 3556 | SWR_BROADCAST); |
| 3557 | if (ret) |
| 3558 | dev_err(swrm->dev, |
| 3559 | "%s: set num ch failed\n", |
| 3560 | __func__); |
| 3561 | } |
| 3562 | } else { |
| 3563 | list_for_each_entry(swr_dev, &mstr->devices, |
| 3564 | dev_list) { |
| 3565 | ret = swr_set_device_group(swr_dev, |
| 3566 | SWR_GROUP_NONE); |
| 3567 | if (ret) |
| 3568 | dev_err(swrm->dev, |
| 3569 | "%s: set num ch failed\n", |
| 3570 | __func__); |
| 3571 | } |
| 3572 | } |
| 3573 | mutex_unlock(&swrm->mlock); |
| 3574 | } |
| 3575 | break; |
Aditya Bavanari | c034fad | 2018-11-12 22:55:11 +0530 | [diff] [blame] | 3576 | case SWR_REGISTER_WAKE_IRQ: |
| 3577 | if (!data) { |
| 3578 | dev_err(swrm->dev, "%s: reg wake irq data is NULL\n", |
| 3579 | __func__); |
| 3580 | ret = -EINVAL; |
| 3581 | } else { |
| 3582 | mutex_lock(&swrm->mlock); |
| 3583 | swrm->ipc_wakeup = *(u32 *)data; |
| 3584 | ret = swrm_register_wake_irq(swrm); |
| 3585 | if (ret) |
| 3586 | dev_err(swrm->dev, "%s: register wake_irq failed\n", |
| 3587 | __func__); |
| 3588 | mutex_unlock(&swrm->mlock); |
| 3589 | } |
| 3590 | break; |
Sudheer Papothi | 72ee264 | 2019-08-08 05:15:17 +0530 | [diff] [blame] | 3591 | case SWR_REGISTER_WAKEUP: |
| 3592 | msm_aud_evt_blocking_notifier_call_chain( |
| 3593 | SWR_WAKE_IRQ_REGISTER, (void *)swrm); |
| 3594 | break; |
| 3595 | case SWR_DEREGISTER_WAKEUP: |
| 3596 | msm_aud_evt_blocking_notifier_call_chain( |
| 3597 | SWR_WAKE_IRQ_DEREGISTER, (void *)swrm); |
| 3598 | break; |
Sudheer Papothi | 3d1596e | 2018-10-27 06:19:18 +0530 | [diff] [blame] | 3599 | case SWR_SET_PORT_MAP: |
| 3600 | if (!data) { |
| 3601 | dev_err(swrm->dev, "%s: data is NULL for id=%d\n", |
| 3602 | __func__, id); |
| 3603 | ret = -EINVAL; |
| 3604 | } else { |
| 3605 | mutex_lock(&swrm->mlock); |
| 3606 | port_cfg = (struct swrm_port_config *)data; |
| 3607 | if (!port_cfg->size) { |
| 3608 | ret = -EINVAL; |
| 3609 | goto done; |
| 3610 | } |
| 3611 | ret = swrm_alloc_port_mem(&pdev->dev, swrm, |
| 3612 | port_cfg->uc, port_cfg->size); |
| 3613 | if (!ret) |
| 3614 | swrm_copy_port_config(swrm, port_cfg, |
| 3615 | port_cfg->size); |
| 3616 | done: |
| 3617 | mutex_unlock(&swrm->mlock); |
| 3618 | } |
| 3619 | break; |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3620 | default: |
| 3621 | dev_err(swrm->dev, "%s: swr master unknown id %d\n", |
| 3622 | __func__, id); |
| 3623 | break; |
| 3624 | } |
| 3625 | return ret; |
| 3626 | } |
| 3627 | EXPORT_SYMBOL(swrm_wcd_notify); |
| 3628 | |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 3629 | /* |
| 3630 | * swrm_pm_cmpxchg: |
| 3631 | * Check old state and exchange with pm new state |
| 3632 | * if old state matches with current state |
| 3633 | * |
| 3634 | * @swrm: pointer to wcd core resource |
| 3635 | * @o: pm old state |
| 3636 | * @n: pm new state |
| 3637 | * |
| 3638 | * Returns old state |
| 3639 | */ |
| 3640 | static enum swrm_pm_state swrm_pm_cmpxchg( |
| 3641 | struct swr_mstr_ctrl *swrm, |
| 3642 | enum swrm_pm_state o, |
| 3643 | enum swrm_pm_state n) |
| 3644 | { |
| 3645 | enum swrm_pm_state old; |
| 3646 | |
| 3647 | if (!swrm) |
| 3648 | return o; |
| 3649 | |
| 3650 | mutex_lock(&swrm->pm_lock); |
| 3651 | old = swrm->pm_state; |
| 3652 | if (old == o) |
| 3653 | swrm->pm_state = n; |
| 3654 | mutex_unlock(&swrm->pm_lock); |
| 3655 | |
| 3656 | return old; |
| 3657 | } |
| 3658 | |
| 3659 | static bool swrm_lock_sleep(struct swr_mstr_ctrl *swrm) |
| 3660 | { |
| 3661 | enum swrm_pm_state os; |
| 3662 | |
| 3663 | /* |
| 3664 | * swrm_{lock/unlock}_sleep will be called by swr irq handler |
| 3665 | * and slave wake up requests.. |
| 3666 | * |
| 3667 | * If system didn't resume, we can simply return false so |
| 3668 | * IRQ handler can return without handling IRQ. |
| 3669 | */ |
| 3670 | mutex_lock(&swrm->pm_lock); |
| 3671 | if (swrm->wlock_holders++ == 0) { |
| 3672 | dev_dbg(swrm->dev, "%s: holding wake lock\n", __func__); |
| 3673 | pm_qos_update_request(&swrm->pm_qos_req, |
| 3674 | msm_cpuidle_get_deep_idle_latency()); |
| 3675 | pm_stay_awake(swrm->dev); |
| 3676 | } |
| 3677 | mutex_unlock(&swrm->pm_lock); |
| 3678 | |
| 3679 | if (!wait_event_timeout(swrm->pm_wq, |
| 3680 | ((os = swrm_pm_cmpxchg(swrm, |
| 3681 | SWRM_PM_SLEEPABLE, |
| 3682 | SWRM_PM_AWAKE)) == |
| 3683 | SWRM_PM_SLEEPABLE || |
| 3684 | (os == SWRM_PM_AWAKE)), |
| 3685 | msecs_to_jiffies( |
| 3686 | SWRM_SYSTEM_RESUME_TIMEOUT_MS))) { |
| 3687 | dev_err(swrm->dev, "%s: system didn't resume within %dms, s %d, w %d\n", |
| 3688 | __func__, SWRM_SYSTEM_RESUME_TIMEOUT_MS, swrm->pm_state, |
| 3689 | swrm->wlock_holders); |
| 3690 | swrm_unlock_sleep(swrm); |
| 3691 | return false; |
| 3692 | } |
| 3693 | wake_up_all(&swrm->pm_wq); |
| 3694 | return true; |
| 3695 | } |
| 3696 | |
| 3697 | static void swrm_unlock_sleep(struct swr_mstr_ctrl *swrm) |
| 3698 | { |
| 3699 | mutex_lock(&swrm->pm_lock); |
| 3700 | if (--swrm->wlock_holders == 0) { |
| 3701 | dev_dbg(swrm->dev, "%s: releasing wake lock pm_state %d -> %d\n", |
| 3702 | __func__, swrm->pm_state, SWRM_PM_SLEEPABLE); |
| 3703 | /* |
| 3704 | * if swrm_lock_sleep failed, pm_state would be still |
| 3705 | * swrm_PM_ASLEEP, don't overwrite |
| 3706 | */ |
| 3707 | if (likely(swrm->pm_state == SWRM_PM_AWAKE)) |
| 3708 | swrm->pm_state = SWRM_PM_SLEEPABLE; |
| 3709 | pm_qos_update_request(&swrm->pm_qos_req, |
| 3710 | PM_QOS_DEFAULT_VALUE); |
| 3711 | pm_relax(swrm->dev); |
| 3712 | } |
| 3713 | mutex_unlock(&swrm->pm_lock); |
| 3714 | wake_up_all(&swrm->pm_wq); |
| 3715 | } |
| 3716 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3717 | #ifdef CONFIG_PM_SLEEP |
| 3718 | static int swrm_suspend(struct device *dev) |
| 3719 | { |
| 3720 | int ret = -EBUSY; |
| 3721 | struct platform_device *pdev = to_platform_device(dev); |
| 3722 | struct swr_mstr_ctrl *swrm = platform_get_drvdata(pdev); |
| 3723 | |
| 3724 | dev_dbg(dev, "%s: system suspend, state: %d\n", __func__, swrm->state); |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 3725 | |
| 3726 | mutex_lock(&swrm->pm_lock); |
| 3727 | |
| 3728 | if (swrm->pm_state == SWRM_PM_SLEEPABLE) { |
| 3729 | dev_dbg(swrm->dev, "%s: suspending system, state %d, wlock %d\n", |
| 3730 | __func__, swrm->pm_state, |
| 3731 | swrm->wlock_holders); |
| 3732 | swrm->pm_state = SWRM_PM_ASLEEP; |
| 3733 | } else if (swrm->pm_state == SWRM_PM_AWAKE) { |
| 3734 | /* |
| 3735 | * unlock to wait for pm_state == SWRM_PM_SLEEPABLE |
| 3736 | * then set to SWRM_PM_ASLEEP |
| 3737 | */ |
| 3738 | dev_dbg(swrm->dev, "%s: waiting to suspend system, state %d, wlock %d\n", |
| 3739 | __func__, swrm->pm_state, |
| 3740 | swrm->wlock_holders); |
| 3741 | mutex_unlock(&swrm->pm_lock); |
| 3742 | if (!(wait_event_timeout(swrm->pm_wq, swrm_pm_cmpxchg( |
| 3743 | swrm, SWRM_PM_SLEEPABLE, |
| 3744 | SWRM_PM_ASLEEP) == |
| 3745 | SWRM_PM_SLEEPABLE, |
| 3746 | msecs_to_jiffies( |
| 3747 | SWRM_SYS_SUSPEND_WAIT)))) { |
| 3748 | dev_dbg(swrm->dev, "%s: suspend failed state %d, wlock %d\n", |
| 3749 | __func__, swrm->pm_state, |
| 3750 | swrm->wlock_holders); |
| 3751 | return -EBUSY; |
| 3752 | } else { |
| 3753 | dev_dbg(swrm->dev, |
| 3754 | "%s: done, state %d, wlock %d\n", |
| 3755 | __func__, swrm->pm_state, |
| 3756 | swrm->wlock_holders); |
| 3757 | } |
| 3758 | mutex_lock(&swrm->pm_lock); |
| 3759 | } else if (swrm->pm_state == SWRM_PM_ASLEEP) { |
| 3760 | dev_dbg(swrm->dev, "%s: system is already suspended, state %d, wlock %d\n", |
| 3761 | __func__, swrm->pm_state, |
| 3762 | swrm->wlock_holders); |
| 3763 | } |
| 3764 | |
| 3765 | mutex_unlock(&swrm->pm_lock); |
| 3766 | |
| 3767 | if ((!pm_runtime_enabled(dev) || !pm_runtime_suspended(dev))) { |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3768 | ret = swrm_runtime_suspend(dev); |
| 3769 | if (!ret) { |
| 3770 | /* |
| 3771 | * Synchronize runtime-pm and system-pm states: |
| 3772 | * At this point, we are already suspended. If |
| 3773 | * runtime-pm still thinks its active, then |
| 3774 | * make sure its status is in sync with HW |
| 3775 | * status. The three below calls let the |
| 3776 | * runtime-pm know that we are suspended |
| 3777 | * already without re-invoking the suspend |
| 3778 | * callback |
| 3779 | */ |
| 3780 | pm_runtime_disable(dev); |
| 3781 | pm_runtime_set_suspended(dev); |
| 3782 | pm_runtime_enable(dev); |
| 3783 | } |
| 3784 | } |
| 3785 | if (ret == -EBUSY) { |
| 3786 | /* |
| 3787 | * There is a possibility that some audio stream is active |
| 3788 | * during suspend. We dont want to return suspend failure in |
| 3789 | * that case so that display and relevant components can still |
| 3790 | * go to suspend. |
| 3791 | * If there is some other error, then it should be passed-on |
| 3792 | * to system level suspend |
| 3793 | */ |
| 3794 | ret = 0; |
| 3795 | } |
| 3796 | return ret; |
| 3797 | } |
| 3798 | |
| 3799 | static int swrm_resume(struct device *dev) |
| 3800 | { |
| 3801 | int ret = 0; |
| 3802 | struct platform_device *pdev = to_platform_device(dev); |
| 3803 | struct swr_mstr_ctrl *swrm = platform_get_drvdata(pdev); |
| 3804 | |
| 3805 | dev_dbg(dev, "%s: system resume, state: %d\n", __func__, swrm->state); |
| 3806 | if (!pm_runtime_enabled(dev) || !pm_runtime_suspend(dev)) { |
| 3807 | ret = swrm_runtime_resume(dev); |
| 3808 | if (!ret) { |
| 3809 | pm_runtime_mark_last_busy(dev); |
| 3810 | pm_request_autosuspend(dev); |
| 3811 | } |
| 3812 | } |
Ramprasad Katkam | 5734987 | 2018-11-11 18:34:57 +0530 | [diff] [blame] | 3813 | mutex_lock(&swrm->pm_lock); |
| 3814 | if (swrm->pm_state == SWRM_PM_ASLEEP) { |
| 3815 | dev_dbg(swrm->dev, |
| 3816 | "%s: resuming system, state %d, wlock %d\n", |
| 3817 | __func__, swrm->pm_state, |
| 3818 | swrm->wlock_holders); |
| 3819 | swrm->pm_state = SWRM_PM_SLEEPABLE; |
| 3820 | } else { |
| 3821 | dev_dbg(swrm->dev, "%s: system is already awake, state %d wlock %d\n", |
| 3822 | __func__, swrm->pm_state, |
| 3823 | swrm->wlock_holders); |
| 3824 | } |
| 3825 | mutex_unlock(&swrm->pm_lock); |
| 3826 | wake_up_all(&swrm->pm_wq); |
| 3827 | |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3828 | return ret; |
| 3829 | } |
| 3830 | #endif /* CONFIG_PM_SLEEP */ |
| 3831 | |
| 3832 | static const struct dev_pm_ops swrm_dev_pm_ops = { |
| 3833 | SET_SYSTEM_SLEEP_PM_OPS( |
| 3834 | swrm_suspend, |
| 3835 | swrm_resume |
| 3836 | ) |
| 3837 | SET_RUNTIME_PM_OPS( |
| 3838 | swrm_runtime_suspend, |
| 3839 | swrm_runtime_resume, |
| 3840 | NULL |
| 3841 | ) |
| 3842 | }; |
| 3843 | |
| 3844 | static const struct of_device_id swrm_dt_match[] = { |
| 3845 | { |
| 3846 | .compatible = "qcom,swr-mstr", |
| 3847 | }, |
| 3848 | {} |
| 3849 | }; |
| 3850 | |
| 3851 | static struct platform_driver swr_mstr_driver = { |
| 3852 | .probe = swrm_probe, |
| 3853 | .remove = swrm_remove, |
| 3854 | .driver = { |
| 3855 | .name = SWR_WCD_NAME, |
| 3856 | .owner = THIS_MODULE, |
| 3857 | .pm = &swrm_dev_pm_ops, |
| 3858 | .of_match_table = swrm_dt_match, |
Xiaojun Sang | 53cd13a | 2018-06-29 15:14:37 +0800 | [diff] [blame] | 3859 | .suppress_bind_attrs = true, |
Ramprasad Katkam | 9f040f3 | 2018-05-16 10:19:25 +0530 | [diff] [blame] | 3860 | }, |
| 3861 | }; |
| 3862 | |
| 3863 | static int __init swrm_init(void) |
| 3864 | { |
| 3865 | return platform_driver_register(&swr_mstr_driver); |
| 3866 | } |
| 3867 | module_init(swrm_init); |
| 3868 | |
| 3869 | static void __exit swrm_exit(void) |
| 3870 | { |
| 3871 | platform_driver_unregister(&swr_mstr_driver); |
| 3872 | } |
| 3873 | module_exit(swrm_exit); |
| 3874 | |
| 3875 | MODULE_LICENSE("GPL v2"); |
| 3876 | MODULE_DESCRIPTION("SoundWire Master Controller"); |
| 3877 | MODULE_ALIAS("platform:swr-mstr"); |