Meng Wang | 43bbb87 | 2018-12-10 12:32:05 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-only |
Mangesh Kunchamwar | cdd68db | 2019-01-10 16:21:00 +0530 | [diff] [blame] | 2 | /* Copyright (c) 2015-2019, The Linux Foundation. All rights reserved. |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 3 | */ |
| 4 | |
| 5 | #include <linux/kernel.h> |
| 6 | #include <linux/init.h> |
| 7 | #include <linux/err.h> |
| 8 | #include <linux/module.h> |
| 9 | #include <linux/of.h> |
| 10 | #include <linux/clk.h> |
| 11 | #include <linux/clk-provider.h> |
| 12 | #include "../../../drivers/clk/qcom/common.h" |
Meng Wang | 15c825d | 2018-09-06 10:49:18 +0800 | [diff] [blame] | 13 | #include <linux/pinctrl/consumer.h> |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 14 | #include <linux/platform_device.h> |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 15 | #include <dt-bindings/clock/qcom,audio-ext-clk.h> |
Laxminath Kasam | 605b42f | 2017-08-01 22:02:15 +0530 | [diff] [blame] | 16 | #include <dsp/q6afe-v2.h> |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 17 | #include "audio-ext-clk-up.h" |
| 18 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 19 | enum { |
| 20 | AUDIO_EXT_CLK_PMI, |
| 21 | AUDIO_EXT_CLK_LNBB2, |
| 22 | AUDIO_EXT_CLK_LPASS, |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 23 | AUDIO_EXT_CLK_LPASS2, |
| 24 | AUDIO_EXT_CLK_LPASS3, |
Aditya Bavanari | 7259ca6 | 2018-07-30 12:03:03 +0530 | [diff] [blame] | 25 | AUDIO_EXT_CLK_LPASS4, |
| 26 | AUDIO_EXT_CLK_LPASS5, |
| 27 | AUDIO_EXT_CLK_LPASS6, |
| 28 | AUDIO_EXT_CLK_LPASS7, |
Mangesh Kunchamwar | cdd68db | 2019-01-10 16:21:00 +0530 | [diff] [blame] | 29 | AUDIO_EXT_CLK_LPASS_CORE_HW_VOTE, |
Sudheer Papothi | a1351b9 | 2019-03-07 18:52:08 +0530 | [diff] [blame] | 30 | AUDIO_EXT_CLK_LPASS8, |
Sudheer Papothi | ba445bf | 2019-04-16 05:05:55 +0530 | [diff] [blame] | 31 | AUDIO_EXT_CLK_LPASS_AUDIO_HW_VOTE, |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 32 | AUDIO_EXT_CLK_LPASS_MAX, |
Rohit kumar | 68725bb | 2018-11-23 16:52:58 +0530 | [diff] [blame] | 33 | AUDIO_EXT_CLK_EXTERNAL_PLL = AUDIO_EXT_CLK_LPASS_MAX, |
| 34 | AUDIO_EXT_CLK_MAX, |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 35 | }; |
| 36 | |
| 37 | struct pinctrl_info { |
| 38 | struct pinctrl *pinctrl; |
| 39 | struct pinctrl_state *sleep; |
| 40 | struct pinctrl_state *active; |
| 41 | char __iomem *base; |
| 42 | }; |
| 43 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 44 | struct audio_ext_clk { |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 45 | struct pinctrl_info pnctrl_info; |
| 46 | struct clk_fixed_factor fact; |
| 47 | }; |
| 48 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 49 | struct audio_ext_clk_priv { |
| 50 | struct device *dev; |
| 51 | int clk_src; |
| 52 | struct afe_clk_set clk_cfg; |
| 53 | struct audio_ext_clk audio_clk; |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 54 | const char *clk_name; |
Mangesh Kunchamwar | cdd68db | 2019-01-10 16:21:00 +0530 | [diff] [blame] | 55 | uint32_t lpass_core_hwvote_client_handle; |
Sudheer Papothi | ba445bf | 2019-04-16 05:05:55 +0530 | [diff] [blame] | 56 | uint32_t lpass_audio_hwvote_client_handle; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 57 | }; |
| 58 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 59 | static inline struct audio_ext_clk_priv *to_audio_clk(struct clk_hw *hw) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 60 | { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 61 | return container_of(hw, struct audio_ext_clk_priv, audio_clk.fact.hw); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 62 | } |
| 63 | |
| 64 | static int audio_ext_clk_prepare(struct clk_hw *hw) |
| 65 | { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 66 | struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw); |
| 67 | struct pinctrl_info *pnctrl_info = &clk_priv->audio_clk.pnctrl_info; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 68 | int ret; |
| 69 | |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 70 | if ((clk_priv->clk_src >= AUDIO_EXT_CLK_LPASS) && |
| 71 | (clk_priv->clk_src < AUDIO_EXT_CLK_LPASS_MAX)) { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 72 | clk_priv->clk_cfg.enable = 1; |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame^] | 73 | trace_printk("%s: vote for %d clock\n", |
| 74 | __func__, clk_priv->clk_src); |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 75 | ret = afe_set_lpass_clk_cfg(IDX_RSVD_3, &clk_priv->clk_cfg); |
| 76 | if (ret < 0) { |
Ramprasad Katkam | 14efed6 | 2019-03-07 13:16:50 +0530 | [diff] [blame] | 77 | pr_err_ratelimited("%s afe_set_digital_codec_core_clock failed\n", |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 78 | __func__); |
| 79 | return ret; |
| 80 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 81 | } |
| 82 | |
| 83 | if (pnctrl_info->pinctrl) { |
| 84 | ret = pinctrl_select_state(pnctrl_info->pinctrl, |
| 85 | pnctrl_info->active); |
| 86 | if (ret) { |
| 87 | pr_err("%s: active state select failed with %d\n", |
| 88 | __func__, ret); |
| 89 | return -EIO; |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | if (pnctrl_info->base) |
| 94 | iowrite32(1, pnctrl_info->base); |
| 95 | return 0; |
| 96 | } |
| 97 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 98 | static void audio_ext_clk_unprepare(struct clk_hw *hw) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 99 | { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 100 | struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw); |
| 101 | struct pinctrl_info *pnctrl_info = &clk_priv->audio_clk.pnctrl_info; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 102 | int ret; |
| 103 | |
| 104 | if (pnctrl_info->pinctrl) { |
| 105 | ret = pinctrl_select_state(pnctrl_info->pinctrl, |
| 106 | pnctrl_info->sleep); |
| 107 | if (ret) { |
| 108 | pr_err("%s: active state select failed with %d\n", |
| 109 | __func__, ret); |
| 110 | return; |
| 111 | } |
| 112 | } |
| 113 | |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 114 | if ((clk_priv->clk_src >= AUDIO_EXT_CLK_LPASS) && |
| 115 | (clk_priv->clk_src < AUDIO_EXT_CLK_LPASS_MAX)) { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 116 | clk_priv->clk_cfg.enable = 0; |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame^] | 117 | trace_printk("%s: unvote for %d clock\n", |
| 118 | __func__, clk_priv->clk_src); |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 119 | ret = afe_set_lpass_clk_cfg(IDX_RSVD_3, &clk_priv->clk_cfg); |
| 120 | if (ret < 0) |
Ramprasad Katkam | 14efed6 | 2019-03-07 13:16:50 +0530 | [diff] [blame] | 121 | pr_err_ratelimited("%s: afe_set_lpass_clk_cfg failed, ret = %d\n", |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 122 | __func__, ret); |
| 123 | } |
| 124 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 125 | if (pnctrl_info->base) |
| 126 | iowrite32(0, pnctrl_info->base); |
| 127 | } |
| 128 | |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 129 | static u8 audio_ext_clk_get_parent(struct clk_hw *hw) |
| 130 | { |
| 131 | struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw); |
| 132 | int num_parents = clk_hw_get_num_parents(hw); |
| 133 | const char * const *parent_names = hw->init->parent_names; |
| 134 | u8 i = 0, ret = hw->init->num_parents + 1; |
| 135 | |
| 136 | if ((clk_priv->clk_src == AUDIO_EXT_CLK_PMI) && clk_priv->clk_name) { |
| 137 | for (i = 0; i < num_parents; i++) { |
| 138 | if (!strcmp(parent_names[i], clk_priv->clk_name)) |
| 139 | ret = i; |
| 140 | } |
| 141 | pr_debug("%s: parent index = %u\n", __func__, ret); |
| 142 | return ret; |
| 143 | } else |
| 144 | return 0; |
| 145 | } |
| 146 | |
Mangesh Kunchamwar | cdd68db | 2019-01-10 16:21:00 +0530 | [diff] [blame] | 147 | static int lpass_hw_vote_prepare(struct clk_hw *hw) |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame] | 148 | { |
| 149 | struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw); |
| 150 | int ret; |
| 151 | |
Mangesh Kunchamwar | cdd68db | 2019-01-10 16:21:00 +0530 | [diff] [blame] | 152 | if (clk_priv->clk_src == AUDIO_EXT_CLK_LPASS_CORE_HW_VOTE) { |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame^] | 153 | trace_printk("%s: vote for %d clock\n", |
| 154 | __func__, clk_priv->clk_src); |
Mangesh Kunchamwar | cdd68db | 2019-01-10 16:21:00 +0530 | [diff] [blame] | 155 | ret = afe_vote_lpass_core_hw(AFE_LPASS_CORE_HW_MACRO_BLOCK, |
| 156 | "LPASS_HW_MACRO", |
| 157 | &clk_priv->lpass_core_hwvote_client_handle); |
| 158 | if (ret < 0) { |
| 159 | pr_err("%s lpass core hw vote failed %d\n", |
| 160 | __func__, ret); |
| 161 | return ret; |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame] | 162 | } |
| 163 | } |
| 164 | |
Sudheer Papothi | ba445bf | 2019-04-16 05:05:55 +0530 | [diff] [blame] | 165 | if (clk_priv->clk_src == AUDIO_EXT_CLK_LPASS_AUDIO_HW_VOTE) { |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame^] | 166 | trace_printk("%s: vote for %d clock\n", |
| 167 | __func__, clk_priv->clk_src); |
Sudheer Papothi | ba445bf | 2019-04-16 05:05:55 +0530 | [diff] [blame] | 168 | ret = afe_vote_lpass_core_hw(AFE_LPASS_CORE_HW_DCODEC_BLOCK, |
| 169 | "LPASS_HW_DCODEC", |
| 170 | &clk_priv->lpass_audio_hwvote_client_handle); |
| 171 | if (ret < 0) { |
| 172 | pr_err("%s lpass audio hw vote failed %d\n", |
| 173 | __func__, ret); |
| 174 | return ret; |
| 175 | } |
| 176 | } |
| 177 | |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame] | 178 | return 0; |
| 179 | } |
| 180 | |
Mangesh Kunchamwar | cdd68db | 2019-01-10 16:21:00 +0530 | [diff] [blame] | 181 | static void lpass_hw_vote_unprepare(struct clk_hw *hw) |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame] | 182 | { |
| 183 | struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw); |
| 184 | int ret = 0; |
| 185 | |
Mangesh Kunchamwar | cdd68db | 2019-01-10 16:21:00 +0530 | [diff] [blame] | 186 | if (clk_priv->clk_src == AUDIO_EXT_CLK_LPASS_CORE_HW_VOTE) { |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame^] | 187 | trace_printk("%s: unvote for %d clock\n", |
| 188 | __func__, clk_priv->clk_src); |
Mangesh Kunchamwar | cdd68db | 2019-01-10 16:21:00 +0530 | [diff] [blame] | 189 | ret = afe_unvote_lpass_core_hw( |
| 190 | AFE_LPASS_CORE_HW_MACRO_BLOCK, |
| 191 | clk_priv->lpass_core_hwvote_client_handle); |
| 192 | if (ret < 0) { |
| 193 | pr_err("%s lpass core hw vote failed %d\n", |
| 194 | __func__, ret); |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame] | 195 | } |
| 196 | } |
Sudheer Papothi | ba445bf | 2019-04-16 05:05:55 +0530 | [diff] [blame] | 197 | |
| 198 | if (clk_priv->clk_src == AUDIO_EXT_CLK_LPASS_AUDIO_HW_VOTE) { |
Aditya Bavanari | f500a1d | 2019-09-16 18:27:51 -0700 | [diff] [blame^] | 199 | trace_printk("%s: unvote for %d clock\n", |
| 200 | __func__, clk_priv->clk_src); |
Sudheer Papothi | ba445bf | 2019-04-16 05:05:55 +0530 | [diff] [blame] | 201 | ret = afe_unvote_lpass_core_hw( |
| 202 | AFE_LPASS_CORE_HW_DCODEC_BLOCK, |
| 203 | clk_priv->lpass_audio_hwvote_client_handle); |
| 204 | if (ret < 0) { |
| 205 | pr_err("%s lpass audio hw unvote failed %d\n", |
| 206 | __func__, ret); |
| 207 | } |
| 208 | } |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame] | 209 | } |
| 210 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 211 | static const struct clk_ops audio_ext_clk_ops = { |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 212 | .prepare = audio_ext_clk_prepare, |
| 213 | .unprepare = audio_ext_clk_unprepare, |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 214 | .get_parent = audio_ext_clk_get_parent, |
| 215 | }; |
| 216 | |
Mangesh Kunchamwar | cdd68db | 2019-01-10 16:21:00 +0530 | [diff] [blame] | 217 | static const struct clk_ops lpass_hw_vote_ops = { |
| 218 | .prepare = lpass_hw_vote_prepare, |
| 219 | .unprepare = lpass_hw_vote_unprepare, |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame] | 220 | }; |
| 221 | |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 222 | static const char * const audio_ext_pmi_div_clk[] = { |
| 223 | "qpnp_clkdiv_1", |
| 224 | "pms405_div_clk1", |
| 225 | "pm6150_div_clk1", |
Aditya Bavanari | 94eb98b | 2019-01-25 21:55:05 +0530 | [diff] [blame] | 226 | "pm6125_div_clk1", |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 227 | }; |
| 228 | |
Sudheer Papothi | 9b51e3e | 2018-07-21 05:20:10 +0530 | [diff] [blame] | 229 | static int audio_ext_clk_dummy_prepare(struct clk_hw *hw) |
| 230 | { |
| 231 | return 0; |
| 232 | } |
| 233 | |
| 234 | static void audio_ext_clk_dummy_unprepare(struct clk_hw *hw) |
| 235 | { |
| 236 | |
| 237 | } |
| 238 | |
| 239 | static const struct clk_ops audio_ext_clk_dummy_ops = { |
| 240 | .prepare = audio_ext_clk_dummy_prepare, |
| 241 | .unprepare = audio_ext_clk_dummy_unprepare, |
| 242 | }; |
| 243 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 244 | static struct audio_ext_clk audio_clk_array[] = { |
| 245 | { |
| 246 | .pnctrl_info = {NULL}, |
| 247 | .fact = { |
| 248 | .mult = 1, |
| 249 | .div = 1, |
| 250 | .hw.init = &(struct clk_init_data){ |
| 251 | .name = "audio_ext_pmi_clk", |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 252 | .parent_names = audio_ext_pmi_div_clk, |
| 253 | .num_parents = |
| 254 | ARRAY_SIZE(audio_ext_pmi_div_clk), |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 255 | .ops = &audio_ext_clk_ops, |
| 256 | }, |
| 257 | }, |
| 258 | }, |
| 259 | { |
| 260 | .pnctrl_info = {NULL}, |
| 261 | .fact = { |
| 262 | .mult = 1, |
| 263 | .div = 1, |
| 264 | .hw.init = &(struct clk_init_data){ |
| 265 | .name = "audio_ext_pmi_lnbb_clk", |
| 266 | .parent_names = (const char *[]) |
| 267 | { "ln_bb_clk2" }, |
| 268 | .num_parents = 1, |
Sudheer Papothi | 9b51e3e | 2018-07-21 05:20:10 +0530 | [diff] [blame] | 269 | .ops = &audio_ext_clk_dummy_ops, |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 270 | }, |
| 271 | }, |
| 272 | }, |
| 273 | { |
| 274 | .pnctrl_info = {NULL}, |
| 275 | .fact = { |
| 276 | .mult = 1, |
| 277 | .div = 1, |
| 278 | .hw.init = &(struct clk_init_data){ |
| 279 | .name = "audio_lpass_mclk", |
| 280 | .ops = &audio_ext_clk_ops, |
| 281 | }, |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 282 | }, |
| 283 | }, |
Laxminath Kasam | d712cc7 | 2018-07-17 23:43:21 +0530 | [diff] [blame] | 284 | { |
| 285 | .pnctrl_info = {NULL}, |
| 286 | .fact = { |
| 287 | .mult = 1, |
| 288 | .div = 1, |
| 289 | .hw.init = &(struct clk_init_data){ |
| 290 | .name = "audio_lpass_mclk2", |
| 291 | .ops = &audio_ext_clk_ops, |
| 292 | }, |
| 293 | }, |
| 294 | }, |
| 295 | { |
| 296 | .pnctrl_info = {NULL}, |
| 297 | .fact = { |
| 298 | .mult = 1, |
| 299 | .div = 1, |
| 300 | .hw.init = &(struct clk_init_data){ |
| 301 | .name = "audio_lpass_mclk3", |
| 302 | .ops = &audio_ext_clk_ops, |
| 303 | }, |
| 304 | }, |
| 305 | }, |
Aditya Bavanari | 7259ca6 | 2018-07-30 12:03:03 +0530 | [diff] [blame] | 306 | { |
| 307 | .pnctrl_info = {NULL}, |
| 308 | .fact = { |
| 309 | .mult = 1, |
| 310 | .div = 1, |
| 311 | .hw.init = &(struct clk_init_data){ |
| 312 | .name = "audio_lpass_mclk4", |
| 313 | .ops = &audio_ext_clk_ops, |
| 314 | }, |
| 315 | }, |
| 316 | }, |
| 317 | { |
| 318 | .pnctrl_info = {NULL}, |
| 319 | .fact = { |
| 320 | .mult = 1, |
| 321 | .div = 1, |
| 322 | .hw.init = &(struct clk_init_data){ |
| 323 | .name = "audio_lpass_mclk5", |
| 324 | .ops = &audio_ext_clk_ops, |
| 325 | }, |
| 326 | }, |
| 327 | }, |
| 328 | { |
| 329 | .pnctrl_info = {NULL}, |
| 330 | .fact = { |
| 331 | .mult = 1, |
| 332 | .div = 1, |
| 333 | .hw.init = &(struct clk_init_data){ |
| 334 | .name = "audio_lpass_mclk6", |
| 335 | .ops = &audio_ext_clk_ops, |
| 336 | }, |
| 337 | }, |
| 338 | }, |
| 339 | { |
| 340 | .pnctrl_info = {NULL}, |
| 341 | .fact = { |
| 342 | .mult = 1, |
| 343 | .div = 1, |
| 344 | .hw.init = &(struct clk_init_data){ |
| 345 | .name = "audio_lpass_mclk7", |
| 346 | .ops = &audio_ext_clk_ops, |
| 347 | }, |
| 348 | }, |
| 349 | }, |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame] | 350 | { |
| 351 | .pnctrl_info = {NULL}, |
| 352 | .fact = { |
| 353 | .hw.init = &(struct clk_init_data){ |
Mangesh Kunchamwar | cdd68db | 2019-01-10 16:21:00 +0530 | [diff] [blame] | 354 | .name = "lpass_hw_vote_clk", |
| 355 | .ops = &lpass_hw_vote_ops, |
Mangesh Kunchamwar | 912a96a | 2018-11-13 16:04:53 +0530 | [diff] [blame] | 356 | }, |
| 357 | }, |
| 358 | }, |
Rohit kumar | 68725bb | 2018-11-23 16:52:58 +0530 | [diff] [blame] | 359 | { |
| 360 | .pnctrl_info = {NULL}, |
| 361 | .fact = { |
| 362 | .mult = 1, |
| 363 | .div = 1, |
| 364 | .hw.init = &(struct clk_init_data){ |
Sudheer Papothi | a1351b9 | 2019-03-07 18:52:08 +0530 | [diff] [blame] | 365 | .name = "audio_lpass_mclk8", |
| 366 | .ops = &audio_ext_clk_ops, |
| 367 | }, |
| 368 | }, |
| 369 | }, |
| 370 | { |
| 371 | .pnctrl_info = {NULL}, |
| 372 | .fact = { |
Sudheer Papothi | ba445bf | 2019-04-16 05:05:55 +0530 | [diff] [blame] | 373 | .hw.init = &(struct clk_init_data){ |
| 374 | .name = "lpass_audio_hw_vote_clk", |
| 375 | .ops = &lpass_hw_vote_ops, |
| 376 | }, |
| 377 | }, |
| 378 | }, |
| 379 | { |
| 380 | .pnctrl_info = {NULL}, |
| 381 | .fact = { |
Sudheer Papothi | a1351b9 | 2019-03-07 18:52:08 +0530 | [diff] [blame] | 382 | .mult = 1, |
| 383 | .div = 1, |
| 384 | .hw.init = &(struct clk_init_data){ |
Rohit kumar | 68725bb | 2018-11-23 16:52:58 +0530 | [diff] [blame] | 385 | .name = "audio_external_pll_clk", |
| 386 | .ops = &audio_ext_clk_ops, |
| 387 | }, |
| 388 | }, |
| 389 | }, |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 390 | }; |
| 391 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 392 | static int audio_get_pinctrl(struct platform_device *pdev) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 393 | { |
| 394 | struct device *dev = &pdev->dev; |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 395 | struct audio_ext_clk_priv *clk_priv = platform_get_drvdata(pdev); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 396 | struct pinctrl_info *pnctrl_info; |
| 397 | struct pinctrl *pinctrl; |
| 398 | int ret; |
| 399 | u32 reg; |
| 400 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 401 | pnctrl_info = &clk_priv->audio_clk.pnctrl_info; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 402 | if (pnctrl_info->pinctrl) { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 403 | dev_err(dev, "%s: already requested before\n", |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 404 | __func__); |
| 405 | return -EINVAL; |
| 406 | } |
| 407 | |
| 408 | pinctrl = devm_pinctrl_get(dev); |
| 409 | if (IS_ERR_OR_NULL(pinctrl)) { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 410 | dev_err(dev, "%s: Unable to get pinctrl handle\n", |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 411 | __func__); |
| 412 | return -EINVAL; |
| 413 | } |
| 414 | pnctrl_info->pinctrl = pinctrl; |
| 415 | /* get all state handles from Device Tree */ |
| 416 | pnctrl_info->sleep = pinctrl_lookup_state(pinctrl, "sleep"); |
| 417 | if (IS_ERR(pnctrl_info->sleep)) { |
| 418 | dev_err(dev, "%s: could not get sleep pinstate\n", |
| 419 | __func__); |
| 420 | goto err; |
| 421 | } |
| 422 | pnctrl_info->active = pinctrl_lookup_state(pinctrl, "active"); |
| 423 | if (IS_ERR(pnctrl_info->active)) { |
| 424 | dev_err(dev, "%s: could not get active pinstate\n", |
| 425 | __func__); |
| 426 | goto err; |
| 427 | } |
| 428 | /* Reset the TLMM pins to a default state */ |
| 429 | ret = pinctrl_select_state(pnctrl_info->pinctrl, |
| 430 | pnctrl_info->sleep); |
| 431 | if (ret) { |
| 432 | dev_err(dev, "%s: Disable TLMM pins failed with %d\n", |
| 433 | __func__, ret); |
| 434 | goto err; |
| 435 | } |
| 436 | |
| 437 | ret = of_property_read_u32(dev->of_node, "qcom,mclk-clk-reg", ®); |
| 438 | if (ret < 0) { |
| 439 | dev_dbg(dev, "%s: miss mclk reg\n", __func__); |
| 440 | } else { |
| 441 | pnctrl_info->base = ioremap(reg, sizeof(u32)); |
| 442 | if (pnctrl_info->base == NULL) { |
| 443 | dev_err(dev, "%s ioremap failed\n", __func__); |
| 444 | goto err; |
| 445 | } |
| 446 | } |
| 447 | |
| 448 | return 0; |
| 449 | |
| 450 | err: |
| 451 | devm_pinctrl_put(pnctrl_info->pinctrl); |
| 452 | return -EINVAL; |
| 453 | } |
| 454 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 455 | static int audio_put_pinctrl(struct platform_device *pdev) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 456 | { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 457 | struct audio_ext_clk_priv *clk_priv = platform_get_drvdata(pdev); |
| 458 | struct pinctrl_info *pnctrl_info = NULL; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 459 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 460 | pnctrl_info = &clk_priv->audio_clk.pnctrl_info; |
| 461 | if (pnctrl_info && pnctrl_info->pinctrl) { |
| 462 | devm_pinctrl_put(pnctrl_info->pinctrl); |
| 463 | pnctrl_info->pinctrl = NULL; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 464 | } |
| 465 | |
| 466 | return 0; |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 467 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 468 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 469 | static int audio_get_clk_data(struct platform_device *pdev) |
| 470 | { |
| 471 | int ret; |
| 472 | struct clk *audio_clk; |
| 473 | struct clk_hw *clkhw; |
| 474 | struct clk_onecell_data *clk_data; |
| 475 | struct audio_ext_clk_priv *clk_priv = platform_get_drvdata(pdev); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 476 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 477 | clk_data = devm_kzalloc(&pdev->dev, sizeof(*clk_data), GFP_KERNEL); |
| 478 | if (!clk_data) |
| 479 | return -ENOMEM; |
| 480 | |
| 481 | clk_data->clk_num = 1; |
| 482 | clk_data->clks = devm_kzalloc(&pdev->dev, |
| 483 | sizeof(struct clk *), |
| 484 | GFP_KERNEL); |
| 485 | if (!clk_data->clks) |
| 486 | return -ENOMEM; |
| 487 | |
| 488 | clkhw = &clk_priv->audio_clk.fact.hw; |
| 489 | audio_clk = devm_clk_register(&pdev->dev, clkhw); |
| 490 | if (IS_ERR(audio_clk)) { |
| 491 | dev_err(&pdev->dev, |
| 492 | "%s: clock register failed for clk_src = %d\\n", |
| 493 | __func__, clk_priv->clk_src); |
| 494 | ret = PTR_ERR(audio_clk); |
| 495 | return ret; |
| 496 | } |
| 497 | clk_data->clks[0] = audio_clk; |
| 498 | |
| 499 | ret = of_clk_add_provider(pdev->dev.of_node, |
| 500 | of_clk_src_onecell_get, clk_data); |
| 501 | if (ret) |
| 502 | dev_err(&pdev->dev, "%s: clock add failed for clk_src = %d\n", |
| 503 | __func__, clk_priv->clk_src); |
| 504 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 505 | return ret; |
| 506 | } |
| 507 | |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 508 | static int audio_ref_clk_probe(struct platform_device *pdev) |
| 509 | { |
| 510 | int ret; |
| 511 | struct audio_ext_clk_priv *clk_priv; |
Laxminath Kasam | 43c1a13 | 2018-06-15 13:18:07 +0530 | [diff] [blame] | 512 | u32 clk_freq = 0, clk_id = 0, clk_src = 0, use_pinctrl = 0; |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 513 | |
| 514 | clk_priv = devm_kzalloc(&pdev->dev, sizeof(*clk_priv), GFP_KERNEL); |
| 515 | if (!clk_priv) |
| 516 | return -ENOMEM; |
| 517 | |
| 518 | ret = of_property_read_u32(pdev->dev.of_node, |
| 519 | "qcom,codec-ext-clk-src", |
| 520 | &clk_src); |
| 521 | if (ret) { |
| 522 | dev_err(&pdev->dev, "%s: could not get clk source, ret = %d\n", |
| 523 | __func__, ret); |
| 524 | return ret; |
| 525 | } |
| 526 | |
| 527 | if (clk_src >= AUDIO_EXT_CLK_MAX) { |
| 528 | dev_err(&pdev->dev, "%s: Invalid clk source = %d\n", |
| 529 | __func__, clk_src); |
| 530 | return -EINVAL; |
| 531 | } |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 532 | clk_priv->clk_name = NULL; |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 533 | clk_priv->clk_src = clk_src; |
| 534 | memcpy(&clk_priv->audio_clk, &audio_clk_array[clk_src], |
| 535 | sizeof(struct audio_ext_clk)); |
| 536 | |
| 537 | /* Init lpass clk default values */ |
| 538 | clk_priv->clk_cfg.clk_set_minor_version = |
| 539 | Q6AFE_LPASS_CLK_CONFIG_API_VERSION; |
| 540 | clk_priv->clk_cfg.clk_id = Q6AFE_LPASS_CLK_ID_SPEAKER_I2S_OSR; |
| 541 | clk_priv->clk_cfg.clk_freq_in_hz = Q6AFE_LPASS_OSR_CLK_9_P600_MHZ; |
| 542 | clk_priv->clk_cfg.clk_attri = Q6AFE_LPASS_CLK_ATTRIBUTE_COUPLE_NO; |
| 543 | |
| 544 | ret = of_property_read_u32(pdev->dev.of_node, |
| 545 | "qcom,codec-lpass-ext-clk-freq", |
| 546 | &clk_freq); |
| 547 | if (!ret) |
| 548 | clk_priv->clk_cfg.clk_freq_in_hz = clk_freq; |
| 549 | |
| 550 | ret = of_property_read_u32(pdev->dev.of_node, |
| 551 | "qcom,codec-lpass-clk-id", |
| 552 | &clk_id); |
| 553 | if (!ret) |
| 554 | clk_priv->clk_cfg.clk_id = clk_id; |
| 555 | |
| 556 | dev_dbg(&pdev->dev, "%s: ext-clk freq: %d, lpass clk_id: %d, clk_src: %d\n", |
| 557 | __func__, clk_priv->clk_cfg.clk_freq_in_hz, |
| 558 | clk_priv->clk_cfg.clk_id, clk_priv->clk_src); |
| 559 | platform_set_drvdata(pdev, clk_priv); |
| 560 | |
Surendar Karka | 0a915f8 | 2018-07-09 20:30:03 +0530 | [diff] [blame] | 561 | ret = of_property_read_string(pdev->dev.of_node, "pmic-clock-names", |
| 562 | &clk_priv->clk_name); |
| 563 | if (ret) |
| 564 | dev_dbg(&pdev->dev, "%s: could not find pmic clock names\n", |
| 565 | __func__); |
Laxminath Kasam | 43c1a13 | 2018-06-15 13:18:07 +0530 | [diff] [blame] | 566 | /* |
| 567 | * property qcom,use-pinctrl to be defined in DTSI to val 1 |
| 568 | * for clock nodes using pinctrl |
| 569 | */ |
| 570 | of_property_read_u32(pdev->dev.of_node, "qcom,use-pinctrl", |
| 571 | &use_pinctrl); |
| 572 | dev_dbg(&pdev->dev, "%s: use-pinctrl : %d\n", |
| 573 | __func__, use_pinctrl); |
| 574 | |
| 575 | if (use_pinctrl) { |
| 576 | ret = audio_get_pinctrl(pdev); |
| 577 | if (ret) { |
| 578 | dev_err(&pdev->dev, "%s: Parsing PMI pinctrl failed\n", |
| 579 | __func__); |
| 580 | return ret; |
| 581 | } |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 582 | } |
| 583 | |
| 584 | ret = audio_get_clk_data(pdev); |
| 585 | if (ret) { |
| 586 | dev_err(&pdev->dev, "%s: clk_init is failed\n", |
| 587 | __func__); |
| 588 | audio_put_pinctrl(pdev); |
| 589 | return ret; |
| 590 | } |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 591 | return 0; |
| 592 | } |
| 593 | |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 594 | static int audio_ref_clk_remove(struct platform_device *pdev) |
| 595 | { |
Vidyakumar Athota | ecc4eda | 2017-12-13 16:24:10 -0800 | [diff] [blame] | 596 | audio_put_pinctrl(pdev); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 597 | |
| 598 | return 0; |
| 599 | } |
| 600 | |
| 601 | static const struct of_device_id audio_ref_clk_match[] = { |
| 602 | {.compatible = "qcom,audio-ref-clk"}, |
| 603 | {} |
| 604 | }; |
| 605 | MODULE_DEVICE_TABLE(of, audio_ref_clk_match); |
| 606 | |
| 607 | static struct platform_driver audio_ref_clk_driver = { |
| 608 | .driver = { |
| 609 | .name = "audio-ref-clk", |
| 610 | .owner = THIS_MODULE, |
| 611 | .of_match_table = audio_ref_clk_match, |
Xiaojun Sang | 53cd13a | 2018-06-29 15:14:37 +0800 | [diff] [blame] | 612 | .suppress_bind_attrs = true, |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 613 | }, |
| 614 | .probe = audio_ref_clk_probe, |
| 615 | .remove = audio_ref_clk_remove, |
| 616 | }; |
| 617 | |
| 618 | int audio_ref_clk_platform_init(void) |
| 619 | { |
| 620 | return platform_driver_register(&audio_ref_clk_driver); |
| 621 | } |
| 622 | |
| 623 | void audio_ref_clk_platform_exit(void) |
| 624 | { |
| 625 | platform_driver_unregister(&audio_ref_clk_driver); |
| 626 | } |
| 627 | |
| 628 | MODULE_DESCRIPTION("Audio Ref Up Clock module platform driver"); |
| 629 | MODULE_LICENSE("GPL v2"); |