Siddartha Mohanadoss | cb813fd | 2017-12-20 15:06:42 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #define pr_fmt(fmt) "%s: " fmt, __func__ |
| 15 | |
| 16 | #include <linux/kernel.h> |
| 17 | #include <linux/regmap.h> |
| 18 | #include <linux/of.h> |
| 19 | #include <linux/err.h> |
| 20 | #include <linux/init.h> |
| 21 | #include <linux/slab.h> |
| 22 | #include <linux/delay.h> |
| 23 | #include <linux/mutex.h> |
| 24 | #include <linux/types.h> |
| 25 | #include <linux/hwmon.h> |
| 26 | #include <linux/module.h> |
| 27 | #include <linux/debugfs.h> |
| 28 | #include <linux/spmi.h> |
| 29 | #include <linux/platform_device.h> |
| 30 | #include <linux/of_irq.h> |
| 31 | #include <linux/interrupt.h> |
| 32 | #include <linux/completion.h> |
| 33 | #include <linux/hwmon-sysfs.h> |
| 34 | #include <linux/qpnp/qpnp-adc.h> |
| 35 | #include <linux/thermal.h> |
| 36 | #include <linux/platform_device.h> |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 37 | #include "thermal_core.h" |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 38 | |
| 39 | /* QPNP VADC TM register definition */ |
| 40 | #define QPNP_REVISION3 0x2 |
| 41 | #define QPNP_PERPH_SUBTYPE 0x5 |
| 42 | #define QPNP_PERPH_TYPE2 0x2 |
| 43 | #define QPNP_REVISION_EIGHT_CHANNEL_SUPPORT 2 |
| 44 | #define QPNP_PERPH_SUBTYPE_TWO_CHANNEL_SUPPORT 0x22 |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 45 | #define QPNP_STATUS1 0x8 |
| 46 | #define QPNP_STATUS1_OP_MODE 4 |
| 47 | #define QPNP_STATUS1_MEAS_INTERVAL_EN_STS BIT(2) |
| 48 | #define QPNP_STATUS1_REQ_STS BIT(1) |
| 49 | #define QPNP_STATUS1_EOC BIT(0) |
| 50 | #define QPNP_STATUS2 0x9 |
| 51 | #define QPNP_STATUS2_CONV_SEQ_STATE 6 |
| 52 | #define QPNP_STATUS2_FIFO_NOT_EMPTY_FLAG BIT(1) |
| 53 | #define QPNP_STATUS2_CONV_SEQ_TIMEOUT_STS BIT(0) |
| 54 | #define QPNP_CONV_TIMEOUT_ERR 2 |
| 55 | |
| 56 | #define QPNP_MODE_CTL 0x40 |
| 57 | #define QPNP_OP_MODE_SHIFT 3 |
| 58 | #define QPNP_VREF_XO_THM_FORCE BIT(2) |
| 59 | #define QPNP_AMUX_TRIM_EN BIT(1) |
| 60 | #define QPNP_ADC_TRIM_EN BIT(0) |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 61 | #define QPNP_EN_CTL1 0x46 |
| 62 | #define QPNP_ADC_TM_EN BIT(7) |
| 63 | #define QPNP_BTM_CONV_REQ 0x47 |
| 64 | #define QPNP_ADC_CONV_REQ_EN BIT(7) |
| 65 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 66 | #define QPNP_ADC_DIG_PARAM 0x50 |
| 67 | #define QPNP_ADC_DIG_DEC_RATIO_SEL_SHIFT 3 |
| 68 | #define QPNP_HW_SETTLE_DELAY 0x51 |
| 69 | #define QPNP_CONV_SEQ_CTL 0x54 |
| 70 | #define QPNP_CONV_SEQ_HOLDOFF_SHIFT 4 |
| 71 | #define QPNP_CONV_SEQ_TRIG_CTL 0x55 |
| 72 | #define QPNP_ADC_TM_MEAS_INTERVAL_CTL 0x57 |
| 73 | #define QPNP_ADC_TM_MEAS_INTERVAL_TIME_SHIFT 0x3 |
| 74 | #define QPNP_ADC_TM_MEAS_INTERVAL_CTL2 0x58 |
| 75 | #define QPNP_ADC_TM_MEAS_INTERVAL_CTL2_SHIFT 0x4 |
| 76 | #define QPNP_ADC_TM_MEAS_INTERVAL_CTL2_MASK 0xf0 |
| 77 | #define QPNP_ADC_TM_MEAS_INTERVAL_CTL3_MASK 0xf |
| 78 | |
| 79 | #define QPNP_ADC_MEAS_INTERVAL_OP_CTL 0x59 |
| 80 | #define QPNP_ADC_MEAS_INTERVAL_OP BIT(7) |
| 81 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 82 | #define QPNP_OP_MODE_SHIFT 3 |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 83 | #define QPNP_CONV_REQ 0x52 |
| 84 | #define QPNP_CONV_REQ_SET BIT(7) |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 85 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 86 | #define QPNP_FAST_AVG_CTL 0x5a |
| 87 | #define QPNP_FAST_AVG_EN 0x5b |
| 88 | #define QPNP_FAST_AVG_ENABLED BIT(7) |
| 89 | |
| 90 | #define QPNP_M0_LOW_THR_LSB 0x5c |
| 91 | #define QPNP_M0_LOW_THR_MSB 0x5d |
| 92 | #define QPNP_M0_HIGH_THR_LSB 0x5e |
| 93 | #define QPNP_M0_HIGH_THR_MSB 0x5f |
| 94 | #define QPNP_M1_ADC_CH_SEL_CTL 0x68 |
| 95 | #define QPNP_M1_LOW_THR_LSB 0x69 |
| 96 | #define QPNP_M1_LOW_THR_MSB 0x6a |
| 97 | #define QPNP_M1_HIGH_THR_LSB 0x6b |
| 98 | #define QPNP_M1_HIGH_THR_MSB 0x6c |
| 99 | #define QPNP_M2_ADC_CH_SEL_CTL 0x70 |
| 100 | #define QPNP_M2_LOW_THR_LSB 0x71 |
| 101 | #define QPNP_M2_LOW_THR_MSB 0x72 |
| 102 | #define QPNP_M2_HIGH_THR_LSB 0x73 |
| 103 | #define QPNP_M2_HIGH_THR_MSB 0x74 |
| 104 | #define QPNP_M3_ADC_CH_SEL_CTL 0x78 |
| 105 | #define QPNP_M3_LOW_THR_LSB 0x79 |
| 106 | #define QPNP_M3_LOW_THR_MSB 0x7a |
| 107 | #define QPNP_M3_HIGH_THR_LSB 0x7b |
| 108 | #define QPNP_M3_HIGH_THR_MSB 0x7c |
| 109 | #define QPNP_M4_ADC_CH_SEL_CTL 0x80 |
| 110 | #define QPNP_M4_LOW_THR_LSB 0x81 |
| 111 | #define QPNP_M4_LOW_THR_MSB 0x82 |
| 112 | #define QPNP_M4_HIGH_THR_LSB 0x83 |
| 113 | #define QPNP_M4_HIGH_THR_MSB 0x84 |
| 114 | #define QPNP_M5_ADC_CH_SEL_CTL 0x88 |
| 115 | #define QPNP_M5_LOW_THR_LSB 0x89 |
| 116 | #define QPNP_M5_LOW_THR_MSB 0x8a |
| 117 | #define QPNP_M5_HIGH_THR_LSB 0x8b |
| 118 | #define QPNP_M5_HIGH_THR_MSB 0x8c |
| 119 | #define QPNP_M6_ADC_CH_SEL_CTL 0x90 |
| 120 | #define QPNP_M6_LOW_THR_LSB 0x91 |
| 121 | #define QPNP_M6_LOW_THR_MSB 0x92 |
| 122 | #define QPNP_M6_HIGH_THR_LSB 0x93 |
| 123 | #define QPNP_M6_HIGH_THR_MSB 0x94 |
| 124 | #define QPNP_M7_ADC_CH_SEL_CTL 0x98 |
| 125 | #define QPNP_M7_LOW_THR_LSB 0x99 |
| 126 | #define QPNP_M7_LOW_THR_MSB 0x9a |
| 127 | #define QPNP_M7_HIGH_THR_LSB 0x9b |
| 128 | #define QPNP_M7_HIGH_THR_MSB 0x9c |
| 129 | |
| 130 | #define QPNP_ADC_TM_MULTI_MEAS_EN 0x41 |
| 131 | #define QPNP_ADC_TM_MULTI_MEAS_EN_M0 BIT(0) |
| 132 | #define QPNP_ADC_TM_MULTI_MEAS_EN_M1 BIT(1) |
| 133 | #define QPNP_ADC_TM_MULTI_MEAS_EN_M2 BIT(2) |
| 134 | #define QPNP_ADC_TM_MULTI_MEAS_EN_M3 BIT(3) |
| 135 | #define QPNP_ADC_TM_MULTI_MEAS_EN_M4 BIT(4) |
| 136 | #define QPNP_ADC_TM_MULTI_MEAS_EN_M5 BIT(5) |
| 137 | #define QPNP_ADC_TM_MULTI_MEAS_EN_M6 BIT(6) |
| 138 | #define QPNP_ADC_TM_MULTI_MEAS_EN_M7 BIT(7) |
| 139 | #define QPNP_ADC_TM_LOW_THR_INT_EN 0x42 |
| 140 | #define QPNP_ADC_TM_LOW_THR_INT_EN_M0 BIT(0) |
| 141 | #define QPNP_ADC_TM_LOW_THR_INT_EN_M1 BIT(1) |
| 142 | #define QPNP_ADC_TM_LOW_THR_INT_EN_M2 BIT(2) |
| 143 | #define QPNP_ADC_TM_LOW_THR_INT_EN_M3 BIT(3) |
| 144 | #define QPNP_ADC_TM_LOW_THR_INT_EN_M4 BIT(4) |
| 145 | #define QPNP_ADC_TM_LOW_THR_INT_EN_M5 BIT(5) |
| 146 | #define QPNP_ADC_TM_LOW_THR_INT_EN_M6 BIT(6) |
| 147 | #define QPNP_ADC_TM_LOW_THR_INT_EN_M7 BIT(7) |
| 148 | #define QPNP_ADC_TM_HIGH_THR_INT_EN 0x43 |
| 149 | #define QPNP_ADC_TM_HIGH_THR_INT_EN_M0 BIT(0) |
| 150 | #define QPNP_ADC_TM_HIGH_THR_INT_EN_M1 BIT(1) |
| 151 | #define QPNP_ADC_TM_HIGH_THR_INT_EN_M2 BIT(2) |
| 152 | #define QPNP_ADC_TM_HIGH_THR_INT_EN_M3 BIT(3) |
| 153 | #define QPNP_ADC_TM_HIGH_THR_INT_EN_M4 BIT(4) |
| 154 | #define QPNP_ADC_TM_HIGH_THR_INT_EN_M5 BIT(5) |
| 155 | #define QPNP_ADC_TM_HIGH_THR_INT_EN_M6 BIT(6) |
| 156 | #define QPNP_ADC_TM_HIGH_THR_INT_EN_M7 BIT(7) |
| 157 | |
| 158 | #define QPNP_ADC_TM_M0_MEAS_INTERVAL_CTL 0x59 |
| 159 | #define QPNP_ADC_TM_M1_MEAS_INTERVAL_CTL 0x6d |
| 160 | #define QPNP_ADC_TM_M2_MEAS_INTERVAL_CTL 0x75 |
| 161 | #define QPNP_ADC_TM_M3_MEAS_INTERVAL_CTL 0x7d |
| 162 | #define QPNP_ADC_TM_M4_MEAS_INTERVAL_CTL 0x85 |
| 163 | #define QPNP_ADC_TM_M5_MEAS_INTERVAL_CTL 0x8d |
| 164 | #define QPNP_ADC_TM_M6_MEAS_INTERVAL_CTL 0x95 |
| 165 | #define QPNP_ADC_TM_M7_MEAS_INTERVAL_CTL 0x9d |
| 166 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 167 | #define QPNP_ADC_TM_STATUS1 0x8 |
| 168 | #define QPNP_ADC_TM_STATUS_LOW 0xa |
| 169 | #define QPNP_ADC_TM_STATUS_HIGH 0xb |
| 170 | |
| 171 | #define QPNP_ADC_TM_M0_LOW_THR 0x5d5c |
| 172 | #define QPNP_ADC_TM_M0_HIGH_THR 0x5f5e |
| 173 | #define QPNP_ADC_TM_MEAS_INTERVAL 0x0 |
| 174 | |
| 175 | #define QPNP_ADC_TM_THR_LSB_MASK(val) (val & 0xff) |
| 176 | #define QPNP_ADC_TM_THR_MSB_MASK(val) ((val & 0xff00) >> 8) |
| 177 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 178 | #define QPNP_MIN_TIME 2000 |
| 179 | #define QPNP_MAX_TIME 2100 |
| 180 | #define QPNP_RETRY 1000 |
| 181 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 182 | /* QPNP ADC TM HC start */ |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 183 | #define QPNP_BTM_HC_STATUS1 0x08 |
| 184 | #define QPNP_BTM_HC_STATUS_LOW 0x0a |
| 185 | #define QPNP_BTM_HC_STATUS_HIGH 0x0b |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 186 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 187 | #define QPNP_BTM_HC_ADC_DIG_PARAM 0x42 |
| 188 | #define QPNP_BTM_HC_FAST_AVG_CTL 0x43 |
| 189 | #define QPNP_BTM_EN_CTL1 0x46 |
| 190 | #define QPNP_BTM_CONV_REQ 0x47 |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 191 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 192 | #define QPNP_BTM_MEAS_INTERVAL_CTL 0x50 |
| 193 | #define QPNP_BTM_MEAS_INTERVAL_CTL2 0x51 |
| 194 | #define QPNP_ADC_TM_MEAS_INTERVAL_TIME_SHIFT 0x3 |
| 195 | #define QPNP_ADC_TM_MEAS_INTERVAL_CTL2_SHIFT 0x4 |
| 196 | #define QPNP_ADC_TM_MEAS_INTERVAL_CTL2_MASK 0xf0 |
| 197 | #define QPNP_ADC_TM_MEAS_INTERVAL_CTL3_MASK 0xf |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 198 | |
| 199 | #define QPNP_BTM_Mn_ADC_CH_SEL_CTL(n) ((n * 8) + 0x60) |
| 200 | #define QPNP_BTM_Mn_LOW_THR0(n) ((n * 8) + 0x61) |
| 201 | #define QPNP_BTM_Mn_LOW_THR1(n) ((n * 8) + 0x62) |
| 202 | #define QPNP_BTM_Mn_HIGH_THR0(n) ((n * 8) + 0x63) |
| 203 | #define QPNP_BTM_Mn_HIGH_THR1(n) ((n * 8) + 0x64) |
| 204 | #define QPNP_BTM_Mn_MEAS_INTERVAL_CTL(n) ((n * 8) + 0x65) |
| 205 | #define QPNP_BTM_Mn_CTL(n) ((n * 8) + 0x66) |
| 206 | #define QPNP_BTM_CTL_HW_SETTLE_DELAY_MASK 0xf |
| 207 | #define QPNP_BTM_CTL_CAL_SEL 0x30 |
| 208 | #define QPNP_BTM_CTL_CAL_SEL_MASK_SHIFT 4 |
| 209 | #define QPNP_BTM_CTL_CAL_VAL 0x40 |
| 210 | |
| 211 | #define QPNP_BTM_Mn_EN(n) ((n * 8) + 0x67) |
| 212 | #define QPNP_BTM_Mn_MEAS_EN BIT(7) |
| 213 | #define QPNP_BTM_Mn_HIGH_THR_INT_EN BIT(1) |
| 214 | #define QPNP_BTM_Mn_LOW_THR_INT_EN BIT(0) |
| 215 | |
| 216 | #define QPNP_BTM_Mn_DATA0(n) ((n * 2) + 0xa0) |
| 217 | #define QPNP_BTM_Mn_DATA1(n) ((n * 2) + 0xa1) |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 218 | #define QPNP_BTM_CHANNELS 8 |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 219 | |
| 220 | /* QPNP ADC TM HC end */ |
| 221 | |
| 222 | struct qpnp_adc_thr_info { |
| 223 | u8 status_low; |
| 224 | u8 status_high; |
| 225 | u8 qpnp_adc_tm_meas_en; |
| 226 | u8 adc_tm_low_enable; |
| 227 | u8 adc_tm_high_enable; |
| 228 | u8 adc_tm_low_thr_set; |
| 229 | u8 adc_tm_high_thr_set; |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 230 | spinlock_t adc_tm_low_lock; |
| 231 | spinlock_t adc_tm_high_lock; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 232 | }; |
| 233 | |
| 234 | struct qpnp_adc_thr_client_info { |
| 235 | struct list_head list; |
| 236 | struct qpnp_adc_tm_btm_param *btm_param; |
| 237 | int32_t low_thr_requested; |
| 238 | int32_t high_thr_requested; |
| 239 | enum qpnp_state_request state_requested; |
| 240 | enum qpnp_state_request state_req_copy; |
| 241 | bool low_thr_set; |
| 242 | bool high_thr_set; |
| 243 | bool notify_low_thr; |
| 244 | bool notify_high_thr; |
| 245 | }; |
| 246 | |
| 247 | struct qpnp_adc_tm_sensor { |
| 248 | struct thermal_zone_device *tz_dev; |
| 249 | struct qpnp_adc_tm_chip *chip; |
| 250 | enum thermal_device_mode mode; |
| 251 | uint32_t sensor_num; |
| 252 | enum qpnp_adc_meas_timer_select timer_select; |
| 253 | uint32_t meas_interval; |
| 254 | uint32_t low_thr; |
| 255 | uint32_t high_thr; |
| 256 | uint32_t btm_channel_num; |
| 257 | uint32_t vadc_channel_num; |
| 258 | struct workqueue_struct *req_wq; |
| 259 | struct work_struct work; |
| 260 | bool thermal_node; |
| 261 | uint32_t scale_type; |
| 262 | struct list_head thr_list; |
| 263 | bool high_thr_triggered; |
| 264 | bool low_thr_triggered; |
| 265 | }; |
| 266 | |
| 267 | struct qpnp_adc_tm_chip { |
| 268 | struct device *dev; |
| 269 | struct qpnp_adc_drv *adc; |
| 270 | struct list_head list; |
| 271 | bool adc_tm_initialized; |
| 272 | bool adc_tm_recalib_check; |
| 273 | int max_channels_available; |
| 274 | atomic_t wq_cnt; |
| 275 | struct qpnp_vadc_chip *vadc_dev; |
| 276 | struct workqueue_struct *high_thr_wq; |
| 277 | struct workqueue_struct *low_thr_wq; |
| 278 | struct workqueue_struct *thr_wq; |
| 279 | struct work_struct trigger_high_thr_work; |
| 280 | struct work_struct trigger_low_thr_work; |
| 281 | struct work_struct trigger_thr_work; |
| 282 | bool adc_vote_enable; |
| 283 | struct qpnp_adc_thr_info th_info; |
| 284 | bool adc_tm_hc; |
| 285 | struct qpnp_adc_tm_sensor sensor[0]; |
| 286 | }; |
| 287 | |
| 288 | LIST_HEAD(qpnp_adc_tm_device_list); |
| 289 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 290 | struct qpnp_adc_tm_trip_reg_type { |
| 291 | enum qpnp_adc_tm_channel_select btm_amux_chan; |
| 292 | uint16_t low_thr_lsb_addr; |
| 293 | uint16_t low_thr_msb_addr; |
| 294 | uint16_t high_thr_lsb_addr; |
| 295 | uint16_t high_thr_msb_addr; |
| 296 | u8 multi_meas_en; |
| 297 | u8 low_thr_int_chan_en; |
| 298 | u8 high_thr_int_chan_en; |
| 299 | u8 meas_interval_ctl; |
| 300 | }; |
| 301 | |
| 302 | static struct qpnp_adc_tm_trip_reg_type adc_tm_data[] = { |
| 303 | [QPNP_ADC_TM_CHAN0] = {QPNP_ADC_TM_M0_ADC_CH_SEL_CTL, |
| 304 | QPNP_M0_LOW_THR_LSB, |
| 305 | QPNP_M0_LOW_THR_MSB, QPNP_M0_HIGH_THR_LSB, |
| 306 | QPNP_M0_HIGH_THR_MSB, QPNP_ADC_TM_MULTI_MEAS_EN_M0, |
| 307 | QPNP_ADC_TM_LOW_THR_INT_EN_M0, QPNP_ADC_TM_HIGH_THR_INT_EN_M0, |
| 308 | QPNP_ADC_TM_M0_MEAS_INTERVAL_CTL}, |
| 309 | [QPNP_ADC_TM_CHAN1] = {QPNP_ADC_TM_M1_ADC_CH_SEL_CTL, |
| 310 | QPNP_M1_LOW_THR_LSB, |
| 311 | QPNP_M1_LOW_THR_MSB, QPNP_M1_HIGH_THR_LSB, |
| 312 | QPNP_M1_HIGH_THR_MSB, QPNP_ADC_TM_MULTI_MEAS_EN_M1, |
| 313 | QPNP_ADC_TM_LOW_THR_INT_EN_M1, QPNP_ADC_TM_HIGH_THR_INT_EN_M1, |
| 314 | QPNP_ADC_TM_M1_MEAS_INTERVAL_CTL}, |
| 315 | [QPNP_ADC_TM_CHAN2] = {QPNP_ADC_TM_M2_ADC_CH_SEL_CTL, |
| 316 | QPNP_M2_LOW_THR_LSB, |
| 317 | QPNP_M2_LOW_THR_MSB, QPNP_M2_HIGH_THR_LSB, |
| 318 | QPNP_M2_HIGH_THR_MSB, QPNP_ADC_TM_MULTI_MEAS_EN_M2, |
| 319 | QPNP_ADC_TM_LOW_THR_INT_EN_M2, QPNP_ADC_TM_HIGH_THR_INT_EN_M2, |
| 320 | QPNP_ADC_TM_M2_MEAS_INTERVAL_CTL}, |
| 321 | [QPNP_ADC_TM_CHAN3] = {QPNP_ADC_TM_M3_ADC_CH_SEL_CTL, |
| 322 | QPNP_M3_LOW_THR_LSB, |
| 323 | QPNP_M3_LOW_THR_MSB, QPNP_M3_HIGH_THR_LSB, |
| 324 | QPNP_M3_HIGH_THR_MSB, QPNP_ADC_TM_MULTI_MEAS_EN_M3, |
| 325 | QPNP_ADC_TM_LOW_THR_INT_EN_M3, QPNP_ADC_TM_HIGH_THR_INT_EN_M3, |
| 326 | QPNP_ADC_TM_M3_MEAS_INTERVAL_CTL}, |
| 327 | [QPNP_ADC_TM_CHAN4] = {QPNP_ADC_TM_M4_ADC_CH_SEL_CTL, |
| 328 | QPNP_M4_LOW_THR_LSB, |
| 329 | QPNP_M4_LOW_THR_MSB, QPNP_M4_HIGH_THR_LSB, |
| 330 | QPNP_M4_HIGH_THR_MSB, QPNP_ADC_TM_MULTI_MEAS_EN_M4, |
| 331 | QPNP_ADC_TM_LOW_THR_INT_EN_M4, QPNP_ADC_TM_HIGH_THR_INT_EN_M4, |
| 332 | QPNP_ADC_TM_M4_MEAS_INTERVAL_CTL}, |
| 333 | [QPNP_ADC_TM_CHAN5] = {QPNP_ADC_TM_M5_ADC_CH_SEL_CTL, |
| 334 | QPNP_M5_LOW_THR_LSB, |
| 335 | QPNP_M5_LOW_THR_MSB, QPNP_M5_HIGH_THR_LSB, |
| 336 | QPNP_M5_HIGH_THR_MSB, QPNP_ADC_TM_MULTI_MEAS_EN_M5, |
| 337 | QPNP_ADC_TM_LOW_THR_INT_EN_M5, QPNP_ADC_TM_HIGH_THR_INT_EN_M5, |
| 338 | QPNP_ADC_TM_M5_MEAS_INTERVAL_CTL}, |
| 339 | [QPNP_ADC_TM_CHAN6] = {QPNP_ADC_TM_M6_ADC_CH_SEL_CTL, |
| 340 | QPNP_M6_LOW_THR_LSB, |
| 341 | QPNP_M6_LOW_THR_MSB, QPNP_M6_HIGH_THR_LSB, |
| 342 | QPNP_M6_HIGH_THR_MSB, QPNP_ADC_TM_MULTI_MEAS_EN_M6, |
| 343 | QPNP_ADC_TM_LOW_THR_INT_EN_M6, QPNP_ADC_TM_HIGH_THR_INT_EN_M6, |
| 344 | QPNP_ADC_TM_M6_MEAS_INTERVAL_CTL}, |
| 345 | [QPNP_ADC_TM_CHAN7] = {QPNP_ADC_TM_M7_ADC_CH_SEL_CTL, |
| 346 | QPNP_M7_LOW_THR_LSB, |
| 347 | QPNP_M7_LOW_THR_MSB, QPNP_M7_HIGH_THR_LSB, |
| 348 | QPNP_M7_HIGH_THR_MSB, QPNP_ADC_TM_MULTI_MEAS_EN_M7, |
| 349 | QPNP_ADC_TM_LOW_THR_INT_EN_M7, QPNP_ADC_TM_HIGH_THR_INT_EN_M7, |
| 350 | QPNP_ADC_TM_M7_MEAS_INTERVAL_CTL}, |
| 351 | }; |
| 352 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 353 | static struct qpnp_adc_tm_reverse_scale_fn adc_tm_rscale_fn[] = { |
| 354 | [SCALE_R_VBATT] = {qpnp_adc_vbatt_rscaler}, |
| 355 | [SCALE_RBATT_THERM] = {qpnp_adc_btm_scaler}, |
| 356 | [SCALE_R_USB_ID] = {qpnp_adc_usb_scaler}, |
| 357 | [SCALE_RPMIC_THERM] = {qpnp_adc_scale_millidegc_pmic_voltage_thr}, |
| 358 | [SCALE_R_SMB_BATT_THERM] = {qpnp_adc_smb_btm_rscaler}, |
| 359 | [SCALE_R_ABSOLUTE] = {qpnp_adc_absolute_rthr}, |
| 360 | [SCALE_QRD_SKUH_RBATT_THERM] = {qpnp_adc_qrd_skuh_btm_scaler}, |
| 361 | [SCALE_QRD_SKUT1_RBATT_THERM] = {qpnp_adc_qrd_skut1_btm_scaler}, |
| 362 | }; |
| 363 | |
| 364 | static int32_t qpnp_adc_tm_read_reg(struct qpnp_adc_tm_chip *chip, |
| 365 | int16_t reg, u8 *data, int len) |
| 366 | { |
| 367 | int rc = 0; |
| 368 | |
| 369 | rc = regmap_bulk_read(chip->adc->regmap, (chip->adc->offset + reg), |
| 370 | data, len); |
| 371 | if (rc < 0) |
| 372 | pr_err("adc-tm read reg %d failed with %d\n", reg, rc); |
| 373 | |
| 374 | return rc; |
| 375 | } |
| 376 | |
| 377 | static int32_t qpnp_adc_tm_write_reg(struct qpnp_adc_tm_chip *chip, |
| 378 | int16_t reg, u8 data, int len) |
| 379 | { |
| 380 | int rc = 0; |
| 381 | u8 *buf; |
| 382 | |
| 383 | buf = &data; |
| 384 | |
| 385 | rc = regmap_bulk_write(chip->adc->regmap, (chip->adc->offset + reg), |
| 386 | buf, len); |
| 387 | if (rc < 0) |
| 388 | pr_err("adc-tm write reg %d failed with %d\n", reg, rc); |
| 389 | |
| 390 | return rc; |
| 391 | } |
| 392 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 393 | static int32_t qpnp_adc_tm_fast_avg_en(struct qpnp_adc_tm_chip *chip, |
| 394 | uint32_t *fast_avg_sample) |
| 395 | { |
| 396 | int rc = 0, version = 0; |
| 397 | u8 fast_avg_en = 0; |
| 398 | |
| 399 | version = qpnp_adc_get_revid_version(chip->dev); |
| 400 | if (!((version == QPNP_REV_ID_8916_1_0) || |
| 401 | (version == QPNP_REV_ID_8916_1_1) || |
| 402 | (version == QPNP_REV_ID_8916_2_0))) { |
| 403 | pr_debug("fast-avg-en not required for this version\n"); |
| 404 | return rc; |
| 405 | } |
| 406 | |
| 407 | fast_avg_en = QPNP_FAST_AVG_ENABLED; |
| 408 | rc = qpnp_adc_tm_write_reg(chip, QPNP_FAST_AVG_EN, fast_avg_en, 1); |
| 409 | if (rc < 0) { |
| 410 | pr_err("adc-tm fast-avg enable err\n"); |
| 411 | return rc; |
| 412 | } |
| 413 | |
| 414 | if (*fast_avg_sample >= 3) |
| 415 | *fast_avg_sample = 2; |
| 416 | |
| 417 | return rc; |
| 418 | } |
| 419 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 420 | static int qpnp_adc_tm_check_vreg_vote(struct qpnp_adc_tm_chip *chip) |
| 421 | { |
| 422 | int rc = 0; |
| 423 | |
| 424 | if (!chip->adc_vote_enable) { |
| 425 | if (chip->adc->hkadc_ldo && chip->adc->hkadc_ldo_ok) { |
| 426 | rc = qpnp_adc_enable_voltage(chip->adc); |
| 427 | if (rc) { |
| 428 | pr_err("failed enabling VADC LDO\n"); |
| 429 | return rc; |
| 430 | } |
| 431 | chip->adc_vote_enable = true; |
| 432 | } |
| 433 | } |
| 434 | |
| 435 | return rc; |
| 436 | } |
| 437 | |
| 438 | static int32_t qpnp_adc_tm_enable(struct qpnp_adc_tm_chip *chip) |
| 439 | { |
| 440 | int rc = 0; |
| 441 | u8 data = 0; |
| 442 | |
| 443 | rc = qpnp_adc_tm_check_vreg_vote(chip); |
| 444 | if (rc) { |
| 445 | pr_err("ADC TM VREG enable failed:%d\n", rc); |
| 446 | return rc; |
| 447 | } |
| 448 | |
| 449 | data = QPNP_ADC_TM_EN; |
| 450 | rc = qpnp_adc_tm_write_reg(chip, QPNP_EN_CTL1, data, 1); |
| 451 | if (rc < 0) { |
| 452 | pr_err("adc-tm enable failed\n"); |
| 453 | return rc; |
| 454 | } |
| 455 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 456 | if (chip->adc_tm_hc) { |
| 457 | data = QPNP_ADC_CONV_REQ_EN; |
| 458 | rc = qpnp_adc_tm_write_reg(chip, QPNP_BTM_CONV_REQ, data, 1); |
| 459 | if (rc < 0) { |
| 460 | pr_err("adc-tm enable failed\n"); |
| 461 | return rc; |
| 462 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 463 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 464 | return rc; |
| 465 | } |
| 466 | |
| 467 | static int32_t qpnp_adc_tm_disable(struct qpnp_adc_tm_chip *chip) |
| 468 | { |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 469 | u8 data = 0; |
| 470 | int rc = 0; |
| 471 | |
| 472 | if (chip->adc_tm_hc) { |
| 473 | rc = qpnp_adc_tm_write_reg(chip, QPNP_BTM_CONV_REQ, data, 1); |
| 474 | if (rc < 0) { |
| 475 | pr_err("adc-tm enable failed\n"); |
| 476 | return rc; |
| 477 | } |
| 478 | } |
| 479 | |
| 480 | rc = qpnp_adc_tm_write_reg(chip, QPNP_EN_CTL1, data, 1); |
| 481 | if (rc < 0) { |
| 482 | pr_err("adc-tm disable failed\n"); |
| 483 | return rc; |
| 484 | } |
| 485 | |
| 486 | return rc; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 487 | } |
| 488 | |
| 489 | static int qpnp_adc_tm_is_valid(struct qpnp_adc_tm_chip *chip) |
| 490 | { |
| 491 | struct qpnp_adc_tm_chip *adc_tm_chip = NULL; |
| 492 | |
| 493 | list_for_each_entry(adc_tm_chip, &qpnp_adc_tm_device_list, list) |
| 494 | if (chip == adc_tm_chip) |
| 495 | return 0; |
| 496 | |
| 497 | return -EINVAL; |
| 498 | } |
| 499 | |
| 500 | static int32_t qpnp_adc_tm_rc_check_channel_en(struct qpnp_adc_tm_chip *chip) |
| 501 | { |
| 502 | u8 adc_tm_ctl = 0, status_low = 0, status_high = 0; |
| 503 | int rc = 0, i = 0; |
| 504 | bool ldo_en = false; |
| 505 | |
| 506 | for (i = 0; i < chip->max_channels_available; i++) { |
| 507 | rc = qpnp_adc_tm_read_reg(chip, QPNP_BTM_Mn_CTL(i), |
| 508 | &adc_tm_ctl, 1); |
| 509 | if (rc) { |
| 510 | pr_err("adc-tm-tm read ctl failed with %d\n", rc); |
| 511 | return rc; |
| 512 | } |
| 513 | |
| 514 | adc_tm_ctl &= QPNP_BTM_Mn_MEAS_EN; |
| 515 | status_low = adc_tm_ctl & QPNP_BTM_Mn_LOW_THR_INT_EN; |
| 516 | status_high = adc_tm_ctl & QPNP_BTM_Mn_HIGH_THR_INT_EN; |
| 517 | |
| 518 | /* Enable only if there are pending measurement requests */ |
| 519 | if ((adc_tm_ctl && status_high) || |
| 520 | (adc_tm_ctl && status_low)) { |
| 521 | qpnp_adc_tm_enable(chip); |
| 522 | ldo_en = true; |
| 523 | |
| 524 | /* Request conversion */ |
| 525 | rc = qpnp_adc_tm_write_reg(chip, QPNP_CONV_REQ, |
| 526 | QPNP_CONV_REQ_SET, 1); |
| 527 | if (rc < 0) { |
| 528 | pr_err("adc-tm request conversion failed\n"); |
| 529 | return rc; |
| 530 | } |
| 531 | } |
| 532 | break; |
| 533 | } |
| 534 | |
| 535 | if (!ldo_en) { |
| 536 | /* disable the vote if applicable */ |
| 537 | if (chip->adc_vote_enable && chip->adc->hkadc_ldo && |
| 538 | chip->adc->hkadc_ldo_ok) { |
| 539 | qpnp_adc_disable_voltage(chip->adc); |
| 540 | chip->adc_vote_enable = false; |
| 541 | } |
| 542 | } |
| 543 | |
| 544 | return rc; |
| 545 | } |
| 546 | |
| 547 | static int32_t qpnp_adc_tm_enable_if_channel_meas( |
| 548 | struct qpnp_adc_tm_chip *chip) |
| 549 | { |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 550 | u8 adc_tm_meas_en = 0, status_low = 0, status_high = 0; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 551 | int rc = 0; |
| 552 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 553 | if (chip->adc_tm_hc) { |
| 554 | rc = qpnp_adc_tm_rc_check_channel_en(chip); |
| 555 | if (rc) { |
| 556 | pr_err("adc_tm channel check failed\n"); |
| 557 | return rc; |
| 558 | } |
| 559 | } else { |
| 560 | /* Check if a measurement request is still required */ |
| 561 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_MULTI_MEAS_EN, |
| 562 | &adc_tm_meas_en, 1); |
| 563 | if (rc) { |
| 564 | pr_err("read status high failed with %d\n", rc); |
| 565 | return rc; |
| 566 | } |
| 567 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_LOW_THR_INT_EN, |
| 568 | &status_low, 1); |
| 569 | if (rc) { |
| 570 | pr_err("read status low failed with %d\n", rc); |
| 571 | return rc; |
| 572 | } |
| 573 | |
| 574 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_HIGH_THR_INT_EN, |
| 575 | &status_high, 1); |
| 576 | if (rc) { |
| 577 | pr_err("read status high failed with %d\n", rc); |
| 578 | return rc; |
| 579 | } |
| 580 | |
| 581 | /* Enable only if there are pending measurement requests */ |
| 582 | if ((adc_tm_meas_en && status_high) || |
| 583 | (adc_tm_meas_en && status_low)) { |
| 584 | qpnp_adc_tm_enable(chip); |
| 585 | /* Request conversion */ |
| 586 | rc = qpnp_adc_tm_write_reg(chip, QPNP_CONV_REQ, |
| 587 | QPNP_CONV_REQ_SET, 1); |
| 588 | if (rc < 0) { |
| 589 | pr_err("adc-tm request conversion failed\n"); |
| 590 | return rc; |
| 591 | } |
| 592 | } else { |
| 593 | /* disable the vote if applicable */ |
| 594 | if (chip->adc_vote_enable && chip->adc->hkadc_ldo && |
| 595 | chip->adc->hkadc_ldo_ok) { |
| 596 | qpnp_adc_disable_voltage(chip->adc); |
| 597 | chip->adc_vote_enable = false; |
| 598 | } |
| 599 | } |
| 600 | } |
| 601 | return rc; |
| 602 | } |
| 603 | |
| 604 | static int32_t qpnp_adc_tm_mode_select(struct qpnp_adc_tm_chip *chip, |
| 605 | u8 mode_ctl) |
| 606 | { |
| 607 | int rc; |
| 608 | |
| 609 | mode_ctl |= (QPNP_ADC_TRIM_EN | QPNP_AMUX_TRIM_EN); |
| 610 | |
| 611 | /* VADC_BTM current sets mode to recurring measurements */ |
| 612 | rc = qpnp_adc_tm_write_reg(chip, QPNP_MODE_CTL, mode_ctl, 1); |
| 613 | if (rc < 0) |
| 614 | pr_err("adc-tm write mode selection err\n"); |
| 615 | |
| 616 | return rc; |
| 617 | } |
| 618 | |
| 619 | static int32_t qpnp_adc_tm_req_sts_check(struct qpnp_adc_tm_chip *chip) |
| 620 | { |
| 621 | u8 status1 = 0, mode_ctl = 0; |
| 622 | int rc, count = 0; |
| 623 | |
| 624 | /* Re-enable the peripheral */ |
| 625 | rc = qpnp_adc_tm_enable(chip); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 626 | if (rc) { |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 627 | pr_err("adc-tm re-enable peripheral failed\n"); |
| 628 | return rc; |
| 629 | } |
| 630 | |
| 631 | /* The VADC_TM bank needs to be disabled for new conversion request */ |
| 632 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_STATUS1, &status1, 1); |
| 633 | if (rc) { |
| 634 | pr_err("adc-tm read status1 failed\n"); |
| 635 | return rc; |
| 636 | } |
| 637 | |
| 638 | /* Disable the bank if a conversion is occurring */ |
| 639 | while (status1 & QPNP_STATUS1_REQ_STS) { |
| 640 | if (count > QPNP_RETRY) { |
| 641 | pr_err("retry error=%d with 0x%x\n", count, status1); |
| 642 | break; |
| 643 | } |
| 644 | /* |
| 645 | * Wait time is based on the optimum sampling rate |
| 646 | * and adding enough time buffer to account for ADC conversions |
| 647 | * occurring on different peripheral banks |
| 648 | */ |
| 649 | usleep_range(QPNP_MIN_TIME, QPNP_MAX_TIME); |
| 650 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_STATUS1, |
| 651 | &status1, 1); |
| 652 | if (rc < 0) { |
| 653 | pr_err("adc-tm disable failed\n"); |
| 654 | return rc; |
| 655 | } |
| 656 | count++; |
| 657 | } |
| 658 | |
| 659 | if (!chip->adc_tm_hc) { |
| 660 | /* Change the mode back to recurring measurement mode */ |
| 661 | mode_ctl = ADC_OP_MEASUREMENT_INTERVAL << QPNP_OP_MODE_SHIFT; |
| 662 | rc = qpnp_adc_tm_mode_select(chip, mode_ctl); |
| 663 | if (rc < 0) { |
| 664 | pr_err("adc-tm mode change to recurring failed\n"); |
| 665 | return rc; |
| 666 | } |
| 667 | } |
| 668 | |
| 669 | /* Disable the peripheral */ |
| 670 | rc = qpnp_adc_tm_disable(chip); |
| 671 | if (rc < 0) { |
| 672 | pr_err("adc-tm peripheral disable failed\n"); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 673 | return rc; |
| 674 | } |
| 675 | |
| 676 | return rc; |
| 677 | } |
| 678 | |
| 679 | static int32_t qpnp_adc_tm_get_btm_idx(struct qpnp_adc_tm_chip *chip, |
| 680 | uint32_t btm_chan, uint32_t *btm_chan_idx) |
| 681 | { |
| 682 | int rc = 0, i; |
| 683 | bool chan_found = false; |
| 684 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 685 | if (!chip->adc_tm_hc) { |
| 686 | for (i = 0; i < QPNP_ADC_TM_CHAN_NONE; i++) { |
| 687 | if (adc_tm_data[i].btm_amux_chan == btm_chan) { |
| 688 | *btm_chan_idx = i; |
| 689 | chan_found = true; |
| 690 | } |
| 691 | } |
| 692 | } else { |
| 693 | for (i = 0; i < chip->max_channels_available; i++) { |
| 694 | if (chip->sensor[i].btm_channel_num == btm_chan) { |
| 695 | *btm_chan_idx = i; |
| 696 | chan_found = true; |
| 697 | break; |
| 698 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 699 | } |
| 700 | } |
| 701 | |
| 702 | if (!chan_found) |
| 703 | return -EINVAL; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 704 | return rc; |
| 705 | } |
| 706 | |
| 707 | static int32_t qpnp_adc_tm_check_revision(struct qpnp_adc_tm_chip *chip, |
| 708 | uint32_t btm_chan_num) |
| 709 | { |
| 710 | u8 rev, perph_subtype; |
| 711 | int rc = 0; |
| 712 | |
| 713 | rc = qpnp_adc_tm_read_reg(chip, QPNP_REVISION3, &rev, 1); |
| 714 | if (rc) { |
| 715 | pr_err("adc-tm revision read failed\n"); |
| 716 | return rc; |
| 717 | } |
| 718 | |
| 719 | rc = qpnp_adc_tm_read_reg(chip, QPNP_PERPH_SUBTYPE, &perph_subtype, 1); |
| 720 | if (rc) { |
| 721 | pr_err("adc-tm perph_subtype read failed\n"); |
| 722 | return rc; |
| 723 | } |
| 724 | |
| 725 | if (perph_subtype == QPNP_PERPH_TYPE2) { |
| 726 | if ((rev < QPNP_REVISION_EIGHT_CHANNEL_SUPPORT) && |
| 727 | (btm_chan_num > QPNP_ADC_TM_M4_ADC_CH_SEL_CTL)) { |
| 728 | pr_debug("Version does not support more than 5 channels\n"); |
| 729 | return -EINVAL; |
| 730 | } |
| 731 | } |
| 732 | |
| 733 | if (perph_subtype == QPNP_PERPH_SUBTYPE_TWO_CHANNEL_SUPPORT) { |
| 734 | if (btm_chan_num > QPNP_ADC_TM_M1_ADC_CH_SEL_CTL) { |
| 735 | pr_debug("Version does not support more than 2 channels\n"); |
| 736 | return -EINVAL; |
| 737 | } |
| 738 | } |
| 739 | |
| 740 | return rc; |
| 741 | } |
| 742 | |
| 743 | static int32_t qpnp_adc_tm_timer_interval_select( |
| 744 | struct qpnp_adc_tm_chip *chip, uint32_t btm_chan, |
| 745 | struct qpnp_vadc_chan_properties *chan_prop) |
| 746 | { |
| 747 | int rc, chan_idx = 0, i = 0; |
| 748 | bool chan_found = false; |
| 749 | u8 meas_interval_timer2 = 0, timer_interval_store = 0; |
| 750 | uint32_t btm_chan_idx = 0; |
| 751 | |
| 752 | while (i < chip->max_channels_available) { |
| 753 | if (chip->sensor[i].btm_channel_num == btm_chan) { |
| 754 | chan_idx = i; |
| 755 | chan_found = true; |
| 756 | i++; |
| 757 | } else |
| 758 | i++; |
| 759 | } |
| 760 | |
| 761 | if (!chan_found) { |
| 762 | pr_err("Channel not found\n"); |
| 763 | return -EINVAL; |
| 764 | } |
| 765 | |
| 766 | switch (chip->sensor[chan_idx].timer_select) { |
| 767 | case ADC_MEAS_TIMER_SELECT1: |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 768 | if (!chip->adc_tm_hc) |
| 769 | rc = qpnp_adc_tm_write_reg(chip, |
| 770 | QPNP_ADC_TM_MEAS_INTERVAL_CTL, |
| 771 | chip->sensor[chan_idx].meas_interval, 1); |
| 772 | else |
| 773 | rc = qpnp_adc_tm_write_reg(chip, |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 774 | QPNP_BTM_MEAS_INTERVAL_CTL, |
| 775 | chip->sensor[chan_idx].meas_interval, 1); |
| 776 | if (rc < 0) { |
| 777 | pr_err("timer1 configure failed\n"); |
| 778 | return rc; |
| 779 | } |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 780 | break; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 781 | case ADC_MEAS_TIMER_SELECT2: |
| 782 | /* Thermal channels uses timer2, default to 1 second */ |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 783 | if (!chip->adc_tm_hc) |
| 784 | rc = qpnp_adc_tm_read_reg(chip, |
| 785 | QPNP_ADC_TM_MEAS_INTERVAL_CTL2, |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 786 | &meas_interval_timer2, 1); |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 787 | else |
| 788 | rc = qpnp_adc_tm_read_reg(chip, |
| 789 | QPNP_BTM_MEAS_INTERVAL_CTL2, |
| 790 | &meas_interval_timer2, 1); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 791 | if (rc < 0) { |
| 792 | pr_err("timer2 configure read failed\n"); |
| 793 | return rc; |
| 794 | } |
| 795 | timer_interval_store = chip->sensor[chan_idx].meas_interval; |
| 796 | timer_interval_store <<= QPNP_ADC_TM_MEAS_INTERVAL_CTL2_SHIFT; |
| 797 | timer_interval_store &= QPNP_ADC_TM_MEAS_INTERVAL_CTL2_MASK; |
| 798 | meas_interval_timer2 |= timer_interval_store; |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 799 | if (!chip->adc_tm_hc) |
| 800 | rc = qpnp_adc_tm_write_reg(chip, |
| 801 | QPNP_ADC_TM_MEAS_INTERVAL_CTL2, |
| 802 | meas_interval_timer2, 1); |
| 803 | else |
| 804 | rc = qpnp_adc_tm_write_reg(chip, |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 805 | QPNP_BTM_MEAS_INTERVAL_CTL2, |
| 806 | meas_interval_timer2, 1); |
| 807 | if (rc < 0) { |
| 808 | pr_err("timer2 configure failed\n"); |
| 809 | return rc; |
| 810 | } |
| 811 | break; |
| 812 | case ADC_MEAS_TIMER_SELECT3: |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 813 | if (!chip->adc_tm_hc) |
| 814 | rc = qpnp_adc_tm_read_reg(chip, |
| 815 | QPNP_ADC_TM_MEAS_INTERVAL_CTL2, |
| 816 | &meas_interval_timer2, 1); |
| 817 | else |
| 818 | rc = qpnp_adc_tm_read_reg(chip, |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 819 | QPNP_BTM_MEAS_INTERVAL_CTL2, |
| 820 | &meas_interval_timer2, 1); |
| 821 | if (rc < 0) { |
| 822 | pr_err("timer3 read failed\n"); |
| 823 | return rc; |
| 824 | } |
| 825 | timer_interval_store = chip->sensor[chan_idx].meas_interval; |
| 826 | timer_interval_store &= QPNP_ADC_TM_MEAS_INTERVAL_CTL3_MASK; |
| 827 | meas_interval_timer2 |= timer_interval_store; |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 828 | if (!chip->adc_tm_hc) |
| 829 | rc = qpnp_adc_tm_write_reg(chip, |
| 830 | QPNP_ADC_TM_MEAS_INTERVAL_CTL2, |
| 831 | meas_interval_timer2, 1); |
| 832 | else |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 833 | rc = qpnp_adc_tm_write_reg(chip, |
| 834 | QPNP_BTM_MEAS_INTERVAL_CTL2, |
| 835 | meas_interval_timer2, 1); |
| 836 | if (rc < 0) { |
| 837 | pr_err("timer3 configure failed\n"); |
| 838 | return rc; |
| 839 | } |
| 840 | break; |
| 841 | default: |
| 842 | pr_err("Invalid timer selection\n"); |
| 843 | return -EINVAL; |
| 844 | } |
| 845 | |
| 846 | /* Select the timer to use for the corresponding channel */ |
| 847 | rc = qpnp_adc_tm_get_btm_idx(chip, btm_chan, &btm_chan_idx); |
| 848 | if (rc < 0) { |
| 849 | pr_err("Invalid btm channel idx\n"); |
| 850 | return rc; |
| 851 | } |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 852 | if (!chip->adc_tm_hc) |
| 853 | rc = qpnp_adc_tm_write_reg(chip, |
| 854 | adc_tm_data[btm_chan_idx].meas_interval_ctl, |
| 855 | chip->sensor[chan_idx].timer_select, 1); |
| 856 | else |
| 857 | rc = qpnp_adc_tm_write_reg(chip, |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 858 | QPNP_BTM_Mn_MEAS_INTERVAL_CTL(btm_chan_idx), |
| 859 | chip->sensor[chan_idx].timer_select, 1); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 860 | if (rc < 0) { |
| 861 | pr_err("TM channel timer configure failed\n"); |
| 862 | return rc; |
| 863 | } |
| 864 | |
| 865 | pr_debug("timer select:%d, timer_value_within_select:%d, channel:%x\n", |
| 866 | chip->sensor[chan_idx].timer_select, |
| 867 | chip->sensor[chan_idx].meas_interval, |
| 868 | btm_chan); |
| 869 | |
| 870 | return rc; |
| 871 | } |
| 872 | |
| 873 | static int32_t qpnp_adc_tm_add_to_list(struct qpnp_adc_tm_chip *chip, |
| 874 | uint32_t dt_index, |
| 875 | struct qpnp_adc_tm_btm_param *param, |
| 876 | struct qpnp_vadc_chan_properties *chan_prop) |
| 877 | { |
| 878 | struct qpnp_adc_thr_client_info *client_info = NULL; |
| 879 | bool client_info_exists = false; |
| 880 | |
| 881 | list_for_each_entry(client_info, |
| 882 | &chip->sensor[dt_index].thr_list, list) { |
| 883 | if (client_info->btm_param == param) { |
| 884 | client_info->low_thr_requested = chan_prop->low_thr; |
| 885 | client_info->high_thr_requested = chan_prop->high_thr; |
| 886 | client_info->state_requested = param->state_request; |
| 887 | client_info->state_req_copy = param->state_request; |
| 888 | client_info->notify_low_thr = false; |
| 889 | client_info->notify_high_thr = false; |
| 890 | client_info_exists = true; |
| 891 | pr_debug("client found\n"); |
| 892 | } |
| 893 | } |
| 894 | |
| 895 | if (!client_info_exists) { |
| 896 | client_info = devm_kzalloc(chip->dev, |
| 897 | sizeof(struct qpnp_adc_thr_client_info), GFP_KERNEL); |
| 898 | if (!client_info) |
| 899 | return -ENOMEM; |
| 900 | |
| 901 | pr_debug("new client\n"); |
| 902 | client_info->btm_param = param; |
| 903 | client_info->low_thr_requested = chan_prop->low_thr; |
| 904 | client_info->high_thr_requested = chan_prop->high_thr; |
| 905 | client_info->state_requested = param->state_request; |
| 906 | client_info->state_req_copy = param->state_request; |
| 907 | |
| 908 | list_add_tail(&client_info->list, |
| 909 | &chip->sensor[dt_index].thr_list); |
| 910 | } |
| 911 | |
| 912 | return 0; |
| 913 | } |
| 914 | |
| 915 | static int32_t qpnp_adc_tm_reg_update(struct qpnp_adc_tm_chip *chip, |
| 916 | uint16_t addr, u8 mask, bool state) |
| 917 | { |
| 918 | u8 reg_value = 0; |
| 919 | int rc = 0; |
| 920 | |
| 921 | rc = qpnp_adc_tm_read_reg(chip, addr, ®_value, 1); |
| 922 | if (rc < 0) { |
| 923 | pr_err("read failed for addr:0x%x\n", addr); |
| 924 | return rc; |
| 925 | } |
| 926 | |
| 927 | reg_value = reg_value & ~mask; |
| 928 | if (state) |
| 929 | reg_value |= mask; |
| 930 | |
| 931 | pr_debug("state:%d, reg:0x%x with bits:0x%x and mask:0x%x\n", |
| 932 | state, addr, reg_value, ~mask); |
| 933 | rc = qpnp_adc_tm_write_reg(chip, addr, reg_value, 1); |
| 934 | if (rc < 0) { |
| 935 | pr_err("write failed for addr:%x\n", addr); |
| 936 | return rc; |
| 937 | } |
| 938 | |
| 939 | return rc; |
| 940 | } |
| 941 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 942 | static int32_t qpnp_adc_tm_read_thr_value(struct qpnp_adc_tm_chip *chip, |
| 943 | uint32_t btm_chan) |
| 944 | { |
| 945 | int rc = 0; |
| 946 | u8 data_lsb = 0, data_msb = 0; |
| 947 | uint32_t btm_chan_idx = 0; |
| 948 | int32_t low_thr = 0, high_thr = 0; |
| 949 | |
| 950 | if (!chip->adc_tm_hc) { |
| 951 | pr_err("Not applicable for VADC HC peripheral\n"); |
| 952 | return -EINVAL; |
| 953 | } |
| 954 | |
| 955 | rc = qpnp_adc_tm_get_btm_idx(chip, btm_chan, &btm_chan_idx); |
| 956 | if (rc < 0) { |
| 957 | pr_err("Invalid btm channel idx\n"); |
| 958 | return rc; |
| 959 | } |
| 960 | |
| 961 | rc = qpnp_adc_tm_read_reg(chip, |
| 962 | adc_tm_data[btm_chan_idx].low_thr_lsb_addr, |
| 963 | &data_lsb, 1); |
| 964 | if (rc < 0) { |
| 965 | pr_err("low threshold lsb setting failed\n"); |
| 966 | return rc; |
| 967 | } |
| 968 | |
| 969 | rc = qpnp_adc_tm_read_reg(chip, |
| 970 | adc_tm_data[btm_chan_idx].low_thr_msb_addr, |
| 971 | &data_msb, 1); |
| 972 | if (rc < 0) { |
| 973 | pr_err("low threshold msb setting failed\n"); |
| 974 | return rc; |
| 975 | } |
| 976 | |
| 977 | low_thr = (data_msb << 8) | data_lsb; |
| 978 | |
| 979 | rc = qpnp_adc_tm_read_reg(chip, |
| 980 | adc_tm_data[btm_chan_idx].high_thr_lsb_addr, |
| 981 | &data_lsb, 1); |
| 982 | if (rc < 0) { |
| 983 | pr_err("high threshold lsb setting failed\n"); |
| 984 | return rc; |
| 985 | } |
| 986 | |
| 987 | rc = qpnp_adc_tm_read_reg(chip, |
| 988 | adc_tm_data[btm_chan_idx].high_thr_msb_addr, |
| 989 | &data_msb, 1); |
| 990 | if (rc < 0) { |
| 991 | pr_err("high threshold msb setting failed\n"); |
| 992 | return rc; |
| 993 | } |
| 994 | |
| 995 | high_thr = (data_msb << 8) | data_lsb; |
| 996 | |
| 997 | pr_debug("configured thresholds high:0x%x and low:0x%x\n", |
| 998 | high_thr, low_thr); |
| 999 | |
| 1000 | return rc; |
| 1001 | } |
| 1002 | |
| 1003 | |
| 1004 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1005 | static int32_t qpnp_adc_tm_thr_update(struct qpnp_adc_tm_chip *chip, |
| 1006 | uint32_t btm_chan, int32_t high_thr, int32_t low_thr) |
| 1007 | { |
| 1008 | int rc = 0; |
| 1009 | uint32_t btm_chan_idx = 0; |
| 1010 | |
| 1011 | rc = qpnp_adc_tm_get_btm_idx(chip, btm_chan, &btm_chan_idx); |
| 1012 | if (rc < 0) { |
| 1013 | pr_err("Invalid btm channel idx\n"); |
| 1014 | return rc; |
| 1015 | } |
| 1016 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1017 | if (!chip->adc_tm_hc) { |
| 1018 | rc = qpnp_adc_tm_write_reg(chip, |
| 1019 | adc_tm_data[btm_chan_idx].low_thr_lsb_addr, |
| 1020 | QPNP_ADC_TM_THR_LSB_MASK(low_thr), 1); |
| 1021 | if (rc < 0) { |
| 1022 | pr_err("low threshold lsb setting failed\n"); |
| 1023 | return rc; |
| 1024 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1025 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1026 | rc = qpnp_adc_tm_write_reg(chip, |
| 1027 | adc_tm_data[btm_chan_idx].low_thr_msb_addr, |
| 1028 | QPNP_ADC_TM_THR_MSB_MASK(low_thr), 1); |
| 1029 | if (rc < 0) { |
| 1030 | pr_err("low threshold msb setting failed\n"); |
| 1031 | return rc; |
| 1032 | } |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1033 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1034 | rc = qpnp_adc_tm_write_reg(chip, |
| 1035 | adc_tm_data[btm_chan_idx].high_thr_lsb_addr, |
| 1036 | QPNP_ADC_TM_THR_LSB_MASK(high_thr), 1); |
| 1037 | if (rc < 0) { |
| 1038 | pr_err("high threshold lsb setting failed\n"); |
| 1039 | return rc; |
| 1040 | } |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1041 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1042 | rc = qpnp_adc_tm_write_reg(chip, |
| 1043 | adc_tm_data[btm_chan_idx].high_thr_msb_addr, |
| 1044 | QPNP_ADC_TM_THR_MSB_MASK(high_thr), 1); |
| 1045 | if (rc < 0) |
| 1046 | pr_err("high threshold msb setting failed\n"); |
| 1047 | } else { |
| 1048 | rc = qpnp_adc_tm_write_reg(chip, |
| 1049 | QPNP_BTM_Mn_LOW_THR0(btm_chan_idx), |
| 1050 | QPNP_ADC_TM_THR_LSB_MASK(low_thr), 1); |
| 1051 | if (rc < 0) { |
| 1052 | pr_err("low threshold lsb setting failed\n"); |
| 1053 | return rc; |
| 1054 | } |
| 1055 | |
| 1056 | rc = qpnp_adc_tm_write_reg(chip, |
| 1057 | QPNP_BTM_Mn_LOW_THR1(btm_chan_idx), |
| 1058 | QPNP_ADC_TM_THR_MSB_MASK(low_thr), 1); |
| 1059 | if (rc < 0) { |
| 1060 | pr_err("low threshold msb setting failed\n"); |
| 1061 | return rc; |
| 1062 | } |
| 1063 | |
| 1064 | rc = qpnp_adc_tm_write_reg(chip, |
| 1065 | QPNP_BTM_Mn_HIGH_THR0(btm_chan_idx), |
| 1066 | QPNP_ADC_TM_THR_LSB_MASK(high_thr), 1); |
| 1067 | if (rc < 0) { |
| 1068 | pr_err("high threshold lsb setting failed\n"); |
| 1069 | return rc; |
| 1070 | } |
| 1071 | |
| 1072 | rc = qpnp_adc_tm_write_reg(chip, |
| 1073 | QPNP_BTM_Mn_HIGH_THR1(btm_chan_idx), |
| 1074 | QPNP_ADC_TM_THR_MSB_MASK(high_thr), 1); |
| 1075 | if (rc < 0) |
| 1076 | pr_err("high threshold msb setting failed\n"); |
| 1077 | |
| 1078 | } |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1079 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1080 | pr_debug("client requested high:%d and low:%d\n", |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1081 | high_thr, low_thr); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1082 | |
| 1083 | return rc; |
| 1084 | } |
| 1085 | |
| 1086 | static int32_t qpnp_adc_tm_manage_thresholds(struct qpnp_adc_tm_chip *chip, |
| 1087 | uint32_t dt_index, uint32_t btm_chan) |
| 1088 | { |
| 1089 | struct qpnp_adc_thr_client_info *client_info = NULL; |
| 1090 | struct list_head *thr_list; |
| 1091 | int high_thr = 0, low_thr = 0, rc = 0; |
| 1092 | |
| 1093 | |
| 1094 | /* |
| 1095 | * high_thr/low_thr starting point and reset the high_thr_set and |
| 1096 | * low_thr_set back to reset since the thresholds will be |
| 1097 | * recomputed. |
| 1098 | */ |
| 1099 | list_for_each(thr_list, |
| 1100 | &chip->sensor[dt_index].thr_list) { |
| 1101 | client_info = list_entry(thr_list, |
| 1102 | struct qpnp_adc_thr_client_info, list); |
| 1103 | high_thr = client_info->high_thr_requested; |
| 1104 | low_thr = client_info->low_thr_requested; |
| 1105 | client_info->high_thr_set = false; |
| 1106 | client_info->low_thr_set = false; |
| 1107 | } |
| 1108 | |
| 1109 | pr_debug("init threshold is high:%d and low:%d\n", high_thr, low_thr); |
| 1110 | |
| 1111 | /* Find the min of high_thr and max of low_thr */ |
| 1112 | list_for_each(thr_list, |
| 1113 | &chip->sensor[dt_index].thr_list) { |
| 1114 | client_info = list_entry(thr_list, |
| 1115 | struct qpnp_adc_thr_client_info, list); |
| 1116 | if ((client_info->state_req_copy == ADC_TM_HIGH_THR_ENABLE) || |
| 1117 | (client_info->state_req_copy == |
| 1118 | ADC_TM_HIGH_LOW_THR_ENABLE)) |
| 1119 | if (client_info->high_thr_requested < high_thr) |
| 1120 | high_thr = client_info->high_thr_requested; |
| 1121 | |
| 1122 | if ((client_info->state_req_copy == ADC_TM_LOW_THR_ENABLE) || |
| 1123 | (client_info->state_req_copy == |
| 1124 | ADC_TM_HIGH_LOW_THR_ENABLE)) |
| 1125 | if (client_info->low_thr_requested > low_thr) |
| 1126 | low_thr = client_info->low_thr_requested; |
| 1127 | |
| 1128 | pr_debug("threshold compared is high:%d and low:%d\n", |
| 1129 | client_info->high_thr_requested, |
| 1130 | client_info->low_thr_requested); |
| 1131 | pr_debug("current threshold is high:%d and low:%d\n", |
| 1132 | high_thr, low_thr); |
| 1133 | } |
| 1134 | |
| 1135 | /* Check which of the high_thr and low_thr got set */ |
| 1136 | list_for_each(thr_list, |
| 1137 | &chip->sensor[dt_index].thr_list) { |
| 1138 | client_info = list_entry(thr_list, |
| 1139 | struct qpnp_adc_thr_client_info, list); |
| 1140 | if ((client_info->state_req_copy == ADC_TM_HIGH_THR_ENABLE) || |
| 1141 | (client_info->state_req_copy == |
| 1142 | ADC_TM_HIGH_LOW_THR_ENABLE)) |
| 1143 | if (high_thr == client_info->high_thr_requested) |
| 1144 | client_info->high_thr_set = true; |
| 1145 | |
| 1146 | if ((client_info->state_req_copy == ADC_TM_LOW_THR_ENABLE) || |
| 1147 | (client_info->state_req_copy == |
| 1148 | ADC_TM_HIGH_LOW_THR_ENABLE)) |
| 1149 | if (low_thr == client_info->low_thr_requested) |
| 1150 | client_info->low_thr_set = true; |
| 1151 | } |
| 1152 | |
| 1153 | rc = qpnp_adc_tm_thr_update(chip, btm_chan, high_thr, low_thr); |
| 1154 | if (rc < 0) |
| 1155 | pr_err("setting chan:%d threshold failed\n", btm_chan); |
| 1156 | |
| 1157 | pr_debug("threshold written is high:%d and low:%d\n", |
| 1158 | high_thr, low_thr); |
| 1159 | |
| 1160 | return 0; |
| 1161 | } |
| 1162 | |
| 1163 | static int32_t qpnp_adc_tm_channel_configure(struct qpnp_adc_tm_chip *chip, |
| 1164 | uint32_t btm_chan, |
| 1165 | struct qpnp_vadc_chan_properties *chan_prop, |
| 1166 | uint32_t amux_channel) |
| 1167 | { |
| 1168 | int rc = 0, i = 0, chan_idx = 0; |
| 1169 | bool chan_found = false, high_thr_set = false, low_thr_set = false; |
| 1170 | u8 sensor_mask = 0; |
| 1171 | struct qpnp_adc_thr_client_info *client_info = NULL; |
| 1172 | uint32_t btm_chan_idx = 0; |
| 1173 | |
| 1174 | while (i < chip->max_channels_available) { |
| 1175 | if (chip->sensor[i].btm_channel_num == btm_chan) { |
| 1176 | chan_idx = i; |
| 1177 | chan_found = true; |
| 1178 | i++; |
| 1179 | } else |
| 1180 | i++; |
| 1181 | } |
| 1182 | |
| 1183 | if (!chan_found) { |
| 1184 | pr_err("Channel not found\n"); |
| 1185 | return -EINVAL; |
| 1186 | } |
| 1187 | |
| 1188 | rc = qpnp_adc_tm_get_btm_idx(chip, btm_chan, &btm_chan_idx); |
| 1189 | if (rc < 0) { |
| 1190 | pr_err("Invalid btm channel idx\n"); |
| 1191 | return rc; |
| 1192 | } |
| 1193 | |
| 1194 | sensor_mask = 1 << chan_idx; |
| 1195 | if (!chip->sensor[chan_idx].thermal_node) { |
| 1196 | /* Update low and high notification thresholds */ |
| 1197 | rc = qpnp_adc_tm_manage_thresholds(chip, chan_idx, |
| 1198 | btm_chan); |
| 1199 | if (rc < 0) { |
| 1200 | pr_err("setting chan:%d threshold failed\n", btm_chan); |
| 1201 | return rc; |
| 1202 | } |
| 1203 | |
| 1204 | list_for_each_entry(client_info, |
| 1205 | &chip->sensor[chan_idx].thr_list, list) { |
| 1206 | if (client_info->high_thr_set == true) |
| 1207 | high_thr_set = true; |
| 1208 | if (client_info->low_thr_set == true) |
| 1209 | low_thr_set = true; |
| 1210 | } |
| 1211 | |
| 1212 | if (low_thr_set) { |
| 1213 | pr_debug("low sensor mask:%x with state:%d\n", |
| 1214 | sensor_mask, chan_prop->state_request); |
| 1215 | /* Enable low threshold's interrupt */ |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1216 | if (!chip->adc_tm_hc) |
| 1217 | rc = qpnp_adc_tm_reg_update(chip, |
| 1218 | QPNP_ADC_TM_LOW_THR_INT_EN, |
| 1219 | sensor_mask, true); |
| 1220 | else |
| 1221 | rc = qpnp_adc_tm_reg_update(chip, |
| 1222 | QPNP_BTM_Mn_EN(btm_chan_idx), |
| 1223 | QPNP_BTM_Mn_LOW_THR_INT_EN, true); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1224 | if (rc < 0) { |
| 1225 | pr_err("low thr enable err:%d\n", btm_chan); |
| 1226 | return rc; |
| 1227 | } |
| 1228 | } |
| 1229 | |
| 1230 | if (high_thr_set) { |
| 1231 | /* Enable high threshold's interrupt */ |
| 1232 | pr_debug("high sensor mask:%x\n", sensor_mask); |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1233 | if (!chip->adc_tm_hc) |
| 1234 | rc = qpnp_adc_tm_reg_update(chip, |
| 1235 | QPNP_ADC_TM_HIGH_THR_INT_EN, |
| 1236 | sensor_mask, true); |
| 1237 | else |
| 1238 | rc = qpnp_adc_tm_reg_update(chip, |
| 1239 | QPNP_BTM_Mn_EN(btm_chan_idx), |
| 1240 | QPNP_BTM_Mn_HIGH_THR_INT_EN, true); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1241 | if (rc < 0) { |
| 1242 | pr_err("high thr enable err:%d\n", btm_chan); |
| 1243 | return rc; |
| 1244 | } |
| 1245 | } |
| 1246 | } |
| 1247 | |
| 1248 | /* Enable corresponding BTM channel measurement */ |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1249 | if (!chip->adc_tm_hc) |
| 1250 | rc = qpnp_adc_tm_reg_update(chip, |
| 1251 | QPNP_ADC_TM_MULTI_MEAS_EN, sensor_mask, true); |
| 1252 | else |
| 1253 | rc = qpnp_adc_tm_reg_update(chip, QPNP_BTM_Mn_EN(btm_chan_idx), |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1254 | QPNP_BTM_Mn_MEAS_EN, true); |
| 1255 | if (rc < 0) { |
| 1256 | pr_err("multi measurement en failed\n"); |
| 1257 | return rc; |
| 1258 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1259 | return rc; |
| 1260 | } |
| 1261 | |
| 1262 | static int32_t qpnp_adc_tm_hc_configure(struct qpnp_adc_tm_chip *chip, |
| 1263 | struct qpnp_adc_amux_properties *chan_prop) |
| 1264 | { |
| 1265 | u8 decimation = 0, fast_avg_ctl = 0; |
| 1266 | u8 buf[8]; |
| 1267 | int rc = 0; |
| 1268 | uint32_t btm_chan = 0, cal_type = 0, btm_chan_idx = 0; |
| 1269 | |
| 1270 | /* Disable bank */ |
| 1271 | rc = qpnp_adc_tm_disable(chip); |
| 1272 | if (rc) |
| 1273 | return rc; |
| 1274 | |
| 1275 | /* Decimation setup */ |
| 1276 | decimation = chan_prop->decimation; |
| 1277 | rc = qpnp_adc_tm_write_reg(chip, QPNP_BTM_HC_ADC_DIG_PARAM, |
| 1278 | decimation, 1); |
| 1279 | if (rc < 0) { |
| 1280 | pr_err("adc-tm digital parameter setup err\n"); |
| 1281 | return rc; |
| 1282 | } |
| 1283 | |
| 1284 | /* Fast averaging setup/enable */ |
| 1285 | rc = qpnp_adc_tm_read_reg(chip, QPNP_BTM_HC_FAST_AVG_CTL, |
| 1286 | &fast_avg_ctl, 1); |
| 1287 | if (rc < 0) { |
| 1288 | pr_err("adc-tm fast-avg enable read err\n"); |
| 1289 | return rc; |
| 1290 | } |
| 1291 | fast_avg_ctl |= chan_prop->fast_avg_setup; |
| 1292 | rc = qpnp_adc_tm_write_reg(chip, QPNP_BTM_HC_FAST_AVG_CTL, |
| 1293 | fast_avg_ctl, 1); |
| 1294 | if (rc < 0) { |
| 1295 | pr_err("adc-tm fast-avg enable write err\n"); |
| 1296 | return rc; |
| 1297 | } |
| 1298 | |
| 1299 | /* Read block registers for respective BTM channel */ |
| 1300 | btm_chan = chan_prop->chan_prop->tm_channel_select; |
| 1301 | rc = qpnp_adc_tm_get_btm_idx(chip, btm_chan, &btm_chan_idx); |
| 1302 | if (rc < 0) { |
| 1303 | pr_err("Invalid btm channel idx\n"); |
| 1304 | return rc; |
| 1305 | } |
| 1306 | |
| 1307 | rc = qpnp_adc_tm_read_reg(chip, |
| 1308 | QPNP_BTM_Mn_ADC_CH_SEL_CTL(btm_chan_idx), buf, 8); |
| 1309 | if (rc < 0) { |
| 1310 | pr_err("qpnp adc configure block read failed\n"); |
| 1311 | return rc; |
| 1312 | } |
| 1313 | |
| 1314 | /* Update ADC channel sel */ |
| 1315 | rc = qpnp_adc_tm_write_reg(chip, |
| 1316 | QPNP_BTM_Mn_ADC_CH_SEL_CTL(btm_chan_idx), |
| 1317 | chan_prop->amux_channel, 1); |
| 1318 | if (rc < 0) { |
| 1319 | pr_err("adc-tm channel amux select failed\n"); |
| 1320 | return rc; |
| 1321 | } |
| 1322 | |
| 1323 | /* Manage thresholds */ |
| 1324 | rc = qpnp_adc_tm_channel_configure(chip, btm_chan, |
| 1325 | chan_prop->chan_prop, chan_prop->amux_channel); |
| 1326 | if (rc < 0) { |
| 1327 | pr_err("adc-tm channel threshold configure failed\n"); |
| 1328 | return rc; |
| 1329 | } |
| 1330 | |
| 1331 | /* Measurement interval setup */ |
| 1332 | rc = qpnp_adc_tm_timer_interval_select(chip, btm_chan, |
| 1333 | chan_prop->chan_prop); |
| 1334 | if (rc < 0) { |
| 1335 | pr_err("adc-tm timer select failed\n"); |
| 1336 | return rc; |
| 1337 | } |
| 1338 | |
| 1339 | /* Set calibration select, hw_settle delay */ |
| 1340 | cal_type |= (chan_prop->calib_type << QPNP_BTM_CTL_CAL_SEL_MASK_SHIFT); |
| 1341 | buf[6] &= ~QPNP_BTM_CTL_HW_SETTLE_DELAY_MASK; |
| 1342 | buf[6] |= chan_prop->hw_settle_time; |
| 1343 | buf[6] &= ~QPNP_BTM_CTL_CAL_SEL; |
| 1344 | buf[6] |= cal_type; |
| 1345 | rc = qpnp_adc_tm_write_reg(chip, QPNP_BTM_Mn_CTL(btm_chan_idx), |
| 1346 | buf[6], 1); |
| 1347 | if (rc < 0) { |
| 1348 | pr_err("adc-tm hw-settle, calib sel failed\n"); |
| 1349 | return rc; |
| 1350 | } |
| 1351 | |
| 1352 | /* Enable bank */ |
| 1353 | rc = qpnp_adc_tm_enable(chip); |
| 1354 | if (rc) |
| 1355 | return rc; |
| 1356 | |
| 1357 | /* Request conversion */ |
| 1358 | rc = qpnp_adc_tm_write_reg(chip, QPNP_CONV_REQ, QPNP_CONV_REQ_SET, 1); |
| 1359 | if (rc < 0) { |
| 1360 | pr_err("adc-tm request conversion failed\n"); |
| 1361 | return rc; |
| 1362 | } |
| 1363 | |
| 1364 | return 0; |
| 1365 | } |
| 1366 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1367 | static int32_t qpnp_adc_tm_configure(struct qpnp_adc_tm_chip *chip, |
| 1368 | struct qpnp_adc_amux_properties *chan_prop) |
| 1369 | { |
| 1370 | u8 decimation = 0, op_cntrl = 0, mode_ctl = 0; |
| 1371 | int rc = 0; |
| 1372 | uint32_t btm_chan = 0; |
| 1373 | |
| 1374 | /* Set measurement in single measurement mode */ |
| 1375 | mode_ctl = ADC_OP_NORMAL_MODE << QPNP_OP_MODE_SHIFT; |
| 1376 | rc = qpnp_adc_tm_mode_select(chip, mode_ctl); |
| 1377 | if (rc < 0) { |
| 1378 | pr_err("adc-tm single mode select failed\n"); |
| 1379 | return rc; |
| 1380 | } |
| 1381 | |
| 1382 | /* Disable bank */ |
| 1383 | rc = qpnp_adc_tm_disable(chip); |
| 1384 | if (rc) |
| 1385 | return rc; |
| 1386 | |
| 1387 | /* Check if a conversion is in progress */ |
| 1388 | rc = qpnp_adc_tm_req_sts_check(chip); |
| 1389 | if (rc < 0) { |
| 1390 | pr_err("adc-tm req_sts check failed\n"); |
| 1391 | return rc; |
| 1392 | } |
| 1393 | |
| 1394 | /* Configure AMUX channel select for the corresponding BTM channel*/ |
| 1395 | btm_chan = chan_prop->chan_prop->tm_channel_select; |
| 1396 | rc = qpnp_adc_tm_write_reg(chip, btm_chan, chan_prop->amux_channel, 1); |
| 1397 | if (rc < 0) { |
| 1398 | pr_err("adc-tm channel selection err\n"); |
| 1399 | return rc; |
| 1400 | } |
| 1401 | |
| 1402 | /* Digital parameter setup */ |
| 1403 | decimation |= chan_prop->decimation << |
| 1404 | QPNP_ADC_DIG_DEC_RATIO_SEL_SHIFT; |
| 1405 | rc = qpnp_adc_tm_write_reg(chip, QPNP_ADC_DIG_PARAM, decimation, 1); |
| 1406 | if (rc < 0) { |
| 1407 | pr_err("adc-tm digital parameter setup err\n"); |
| 1408 | return rc; |
| 1409 | } |
| 1410 | |
| 1411 | /* Hardware setting time */ |
| 1412 | rc = qpnp_adc_tm_write_reg(chip, QPNP_HW_SETTLE_DELAY, |
| 1413 | chan_prop->hw_settle_time, 1); |
| 1414 | if (rc < 0) { |
| 1415 | pr_err("adc-tm hw settling time setup err\n"); |
| 1416 | return rc; |
| 1417 | } |
| 1418 | |
| 1419 | /* Fast averaging setup/enable */ |
| 1420 | rc = qpnp_adc_tm_fast_avg_en(chip, &chan_prop->fast_avg_setup); |
| 1421 | if (rc < 0) { |
| 1422 | pr_err("adc-tm fast-avg enable err\n"); |
| 1423 | return rc; |
| 1424 | } |
| 1425 | |
| 1426 | rc = qpnp_adc_tm_write_reg(chip, QPNP_FAST_AVG_CTL, |
| 1427 | chan_prop->fast_avg_setup, 1); |
| 1428 | if (rc < 0) { |
| 1429 | pr_err("adc-tm fast-avg setup err\n"); |
| 1430 | return rc; |
| 1431 | } |
| 1432 | |
| 1433 | /* Measurement interval setup */ |
| 1434 | rc = qpnp_adc_tm_timer_interval_select(chip, btm_chan, |
| 1435 | chan_prop->chan_prop); |
| 1436 | if (rc < 0) { |
| 1437 | pr_err("adc-tm timer select failed\n"); |
| 1438 | return rc; |
| 1439 | } |
| 1440 | |
| 1441 | /* Channel configuration setup */ |
| 1442 | rc = qpnp_adc_tm_channel_configure(chip, btm_chan, |
| 1443 | chan_prop->chan_prop, chan_prop->amux_channel); |
| 1444 | if (rc < 0) { |
| 1445 | pr_err("adc-tm channel configure failed\n"); |
| 1446 | return rc; |
| 1447 | } |
| 1448 | |
| 1449 | /* Recurring interval measurement enable */ |
| 1450 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_MEAS_INTERVAL_OP_CTL, |
| 1451 | &op_cntrl, 1); |
| 1452 | op_cntrl |= QPNP_ADC_MEAS_INTERVAL_OP; |
| 1453 | rc = qpnp_adc_tm_reg_update(chip, QPNP_ADC_MEAS_INTERVAL_OP_CTL, |
| 1454 | op_cntrl, true); |
| 1455 | if (rc < 0) { |
| 1456 | pr_err("adc-tm meas interval op configure failed\n"); |
| 1457 | return rc; |
| 1458 | } |
| 1459 | |
| 1460 | /* Enable bank */ |
| 1461 | rc = qpnp_adc_tm_enable(chip); |
| 1462 | if (rc) |
| 1463 | return rc; |
| 1464 | |
| 1465 | /* Request conversion */ |
| 1466 | rc = qpnp_adc_tm_write_reg(chip, QPNP_CONV_REQ, QPNP_CONV_REQ_SET, 1); |
| 1467 | if (rc < 0) { |
| 1468 | pr_err("adc-tm request conversion failed\n"); |
| 1469 | return rc; |
| 1470 | } |
| 1471 | |
| 1472 | return 0; |
| 1473 | } |
| 1474 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1475 | static int qpnp_adc_tm_set_mode(struct qpnp_adc_tm_sensor *adc_tm, |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1476 | enum thermal_device_mode mode) |
| 1477 | { |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1478 | struct qpnp_adc_tm_chip *chip = adc_tm->chip; |
| 1479 | int rc = 0, channel; |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1480 | u8 sensor_mask = 0, mode_ctl = 0; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1481 | uint32_t btm_chan_idx = 0, btm_chan = 0; |
| 1482 | |
| 1483 | if (qpnp_adc_tm_is_valid(chip)) { |
| 1484 | pr_err("invalid device\n"); |
| 1485 | return -ENODEV; |
| 1486 | } |
| 1487 | |
| 1488 | if (qpnp_adc_tm_check_revision(chip, adc_tm->btm_channel_num)) |
| 1489 | return -EINVAL; |
| 1490 | |
| 1491 | mutex_lock(&chip->adc->adc_lock); |
| 1492 | |
| 1493 | btm_chan = adc_tm->btm_channel_num; |
| 1494 | rc = qpnp_adc_tm_get_btm_idx(chip, btm_chan, &btm_chan_idx); |
| 1495 | if (rc < 0) { |
| 1496 | pr_err("Invalid btm channel idx\n"); |
| 1497 | goto fail; |
| 1498 | } |
| 1499 | |
| 1500 | if (mode == THERMAL_DEVICE_ENABLED) { |
| 1501 | chip->adc->amux_prop->amux_channel = |
| 1502 | adc_tm->vadc_channel_num; |
| 1503 | channel = adc_tm->sensor_num; |
| 1504 | chip->adc->amux_prop->decimation = |
| 1505 | chip->adc->adc_channels[channel].adc_decimation; |
| 1506 | chip->adc->amux_prop->hw_settle_time = |
| 1507 | chip->adc->adc_channels[channel].hw_settle_time; |
| 1508 | chip->adc->amux_prop->fast_avg_setup = |
| 1509 | chip->adc->adc_channels[channel].fast_avg_setup; |
| 1510 | chip->adc->amux_prop->mode_sel = |
| 1511 | ADC_OP_MEASUREMENT_INTERVAL << QPNP_OP_MODE_SHIFT; |
| 1512 | chip->adc->amux_prop->chan_prop->low_thr = adc_tm->low_thr; |
| 1513 | chip->adc->amux_prop->chan_prop->high_thr = adc_tm->high_thr; |
| 1514 | chip->adc->amux_prop->chan_prop->tm_channel_select = |
| 1515 | adc_tm->btm_channel_num; |
| 1516 | chip->adc->amux_prop->calib_type = |
| 1517 | chip->adc->adc_channels[channel].calib_type; |
| 1518 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1519 | if (!chip->adc_tm_hc) { |
| 1520 | rc = qpnp_adc_tm_configure(chip, chip->adc->amux_prop); |
| 1521 | if (rc) { |
| 1522 | pr_err("adc-tm configure failed with %d\n", rc); |
| 1523 | goto fail; |
| 1524 | } |
| 1525 | } else { |
| 1526 | rc = qpnp_adc_tm_hc_configure(chip, |
| 1527 | chip->adc->amux_prop); |
| 1528 | if (rc) { |
| 1529 | pr_err("hc configure failed with %d\n", rc); |
| 1530 | goto fail; |
| 1531 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1532 | } |
| 1533 | } else if (mode == THERMAL_DEVICE_DISABLED) { |
| 1534 | sensor_mask = 1 << adc_tm->sensor_num; |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1535 | if (!chip->adc_tm_hc) { |
| 1536 | mode_ctl = ADC_OP_NORMAL_MODE << QPNP_OP_MODE_SHIFT; |
| 1537 | rc = qpnp_adc_tm_mode_select(chip, mode_ctl); |
| 1538 | if (rc < 0) { |
| 1539 | pr_err("adc-tm single mode select failed\n"); |
| 1540 | goto fail; |
| 1541 | } |
| 1542 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1543 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1544 | /* Disable bank */ |
| 1545 | rc = qpnp_adc_tm_disable(chip); |
| 1546 | if (rc < 0) { |
| 1547 | pr_err("adc-tm disable failed\n"); |
| 1548 | goto fail; |
| 1549 | } |
| 1550 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1551 | if (!chip->adc_tm_hc) { |
| 1552 | /* Check if a conversion is in progress */ |
| 1553 | rc = qpnp_adc_tm_req_sts_check(chip); |
| 1554 | if (rc < 0) { |
| 1555 | pr_err("adc-tm req_sts check failed\n"); |
| 1556 | goto fail; |
| 1557 | } |
| 1558 | rc = qpnp_adc_tm_reg_update(chip, |
| 1559 | QPNP_ADC_TM_MULTI_MEAS_EN, |
| 1560 | sensor_mask, false); |
| 1561 | if (rc < 0) { |
| 1562 | pr_err("multi measurement update failed\n"); |
| 1563 | goto fail; |
| 1564 | } |
| 1565 | } else { |
| 1566 | rc = qpnp_adc_tm_reg_update(chip, |
| 1567 | QPNP_BTM_Mn_EN(btm_chan_idx), |
| 1568 | QPNP_BTM_Mn_MEAS_EN, false); |
| 1569 | if (rc < 0) { |
| 1570 | pr_err("multi measurement disable failed\n"); |
| 1571 | goto fail; |
| 1572 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1573 | } |
| 1574 | |
| 1575 | rc = qpnp_adc_tm_enable_if_channel_meas(chip); |
| 1576 | if (rc < 0) { |
| 1577 | pr_err("re-enabling measurement failed\n"); |
| 1578 | goto fail; |
| 1579 | } |
| 1580 | } |
| 1581 | |
| 1582 | adc_tm->mode = mode; |
| 1583 | |
| 1584 | fail: |
| 1585 | mutex_unlock(&chip->adc->adc_lock); |
| 1586 | |
| 1587 | return 0; |
| 1588 | } |
| 1589 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1590 | static int qpnp_adc_tm_activate_trip_type(struct qpnp_adc_tm_sensor *adc_tm, |
| 1591 | int trip, enum thermal_trip_activation_mode mode) |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1592 | { |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1593 | struct qpnp_adc_tm_chip *chip = adc_tm->chip; |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1594 | int rc = 0, sensor_mask = 0; |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1595 | u8 thr_int_en = 0; |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1596 | bool state = false; |
| 1597 | uint32_t btm_chan_idx = 0, btm_chan = 0; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1598 | |
| 1599 | if (qpnp_adc_tm_is_valid(chip)) |
| 1600 | return -ENODEV; |
| 1601 | |
| 1602 | if (qpnp_adc_tm_check_revision(chip, adc_tm->btm_channel_num)) |
| 1603 | return -EINVAL; |
| 1604 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1605 | if (mode == THERMAL_TRIP_ACTIVATION_ENABLED) |
| 1606 | state = true; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1607 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1608 | sensor_mask = 1 << adc_tm->sensor_num; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1609 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1610 | pr_debug("Sensor number:%x with state:%d\n", |
| 1611 | adc_tm->sensor_num, state); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1612 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1613 | btm_chan = adc_tm->btm_channel_num; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1614 | rc = qpnp_adc_tm_get_btm_idx(chip, btm_chan, &btm_chan_idx); |
| 1615 | if (rc < 0) { |
| 1616 | pr_err("Invalid btm channel idx\n"); |
| 1617 | return rc; |
| 1618 | } |
| 1619 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1620 | switch (trip) { |
| 1621 | case ADC_TM_TRIP_HIGH_WARM: |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1622 | /* low_thr (lower voltage) for higher temp */ |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1623 | thr_int_en = adc_tm_data[btm_chan_idx].low_thr_int_chan_en; |
| 1624 | if (!chip->adc_tm_hc) |
| 1625 | rc = qpnp_adc_tm_reg_update(chip, |
| 1626 | QPNP_ADC_TM_LOW_THR_INT_EN, |
| 1627 | sensor_mask, state); |
| 1628 | else |
| 1629 | rc = qpnp_adc_tm_reg_update(chip, |
| 1630 | QPNP_BTM_Mn_EN(btm_chan_idx), |
| 1631 | QPNP_BTM_Mn_LOW_THR_INT_EN, state); |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1632 | if (rc) |
| 1633 | pr_err("channel:%x failed\n", btm_chan); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1634 | break; |
| 1635 | case ADC_TM_TRIP_LOW_COOL: |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1636 | /* high_thr (higher voltage) for cooler temp */ |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1637 | thr_int_en = adc_tm_data[btm_chan_idx].high_thr_int_chan_en; |
| 1638 | if (!chip->adc_tm_hc) |
| 1639 | rc = qpnp_adc_tm_reg_update(chip, |
| 1640 | QPNP_ADC_TM_HIGH_THR_INT_EN, |
| 1641 | sensor_mask, state); |
| 1642 | else |
| 1643 | rc = qpnp_adc_tm_reg_update(chip, |
| 1644 | QPNP_BTM_Mn_EN(btm_chan_idx), |
| 1645 | QPNP_BTM_Mn_HIGH_THR_INT_EN, state); |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1646 | if (rc) |
| 1647 | pr_err("channel:%x failed\n", btm_chan); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1648 | break; |
| 1649 | default: |
| 1650 | return -EINVAL; |
| 1651 | } |
| 1652 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1653 | return rc; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1654 | } |
| 1655 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1656 | static int qpnp_adc_tm_set_trip_temp(void *data, int low_temp, int high_temp) |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1657 | { |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1658 | struct qpnp_adc_tm_sensor *adc_tm = data; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1659 | struct qpnp_adc_tm_chip *chip = adc_tm->chip; |
| 1660 | struct qpnp_adc_tm_config tm_config; |
| 1661 | u8 trip_cool_thr0, trip_cool_thr1, trip_warm_thr0, trip_warm_thr1; |
| 1662 | uint16_t reg_low_thr_lsb, reg_low_thr_msb; |
| 1663 | uint16_t reg_high_thr_lsb, reg_high_thr_msb; |
| 1664 | int rc = 0; |
| 1665 | uint32_t btm_chan = 0, btm_chan_idx = 0; |
| 1666 | |
| 1667 | if (qpnp_adc_tm_is_valid(chip)) |
| 1668 | return -ENODEV; |
| 1669 | |
| 1670 | if (qpnp_adc_tm_check_revision(chip, adc_tm->btm_channel_num)) |
| 1671 | return -EINVAL; |
| 1672 | |
| 1673 | tm_config.channel = adc_tm->vadc_channel_num; |
| 1674 | tm_config.high_thr_temp = tm_config.low_thr_temp = 0; |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1675 | if (high_temp != INT_MAX) |
| 1676 | tm_config.high_thr_temp = high_temp; |
| 1677 | if (low_temp != INT_MIN) |
| 1678 | tm_config.low_thr_temp = low_temp; |
| 1679 | |
| 1680 | if ((high_temp == INT_MAX) && (low_temp == INT_MIN)) { |
| 1681 | pr_err("No trips to set\n"); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1682 | return -EINVAL; |
| 1683 | } |
| 1684 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1685 | pr_debug("requested a high - %d and low - %d\n", |
| 1686 | tm_config.high_thr_temp, tm_config.low_thr_temp); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1687 | rc = qpnp_adc_tm_scale_therm_voltage_pu2(chip->vadc_dev, |
| 1688 | chip->adc->adc_prop, &tm_config); |
| 1689 | if (rc < 0) { |
| 1690 | pr_err("Failed to lookup the adc-tm thresholds\n"); |
| 1691 | return rc; |
| 1692 | } |
| 1693 | |
| 1694 | trip_warm_thr0 = ((tm_config.low_thr_voltage << 24) >> 24); |
| 1695 | trip_warm_thr1 = ((tm_config.low_thr_voltage << 16) >> 24); |
| 1696 | trip_cool_thr0 = ((tm_config.high_thr_voltage << 24) >> 24); |
| 1697 | trip_cool_thr1 = ((tm_config.high_thr_voltage << 16) >> 24); |
| 1698 | |
| 1699 | pr_debug("low_thr:0x%llx, high_thr:0x%llx\n", tm_config.low_thr_voltage, |
| 1700 | tm_config.high_thr_voltage); |
| 1701 | |
| 1702 | btm_chan = adc_tm->btm_channel_num; |
| 1703 | rc = qpnp_adc_tm_get_btm_idx(chip, btm_chan, &btm_chan_idx); |
| 1704 | if (rc < 0) { |
| 1705 | pr_err("Invalid btm channel idx\n"); |
| 1706 | return rc; |
| 1707 | } |
| 1708 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1709 | if (!chip->adc_tm_hc) { |
| 1710 | reg_low_thr_lsb = adc_tm_data[btm_chan_idx].low_thr_lsb_addr; |
| 1711 | reg_low_thr_msb = adc_tm_data[btm_chan_idx].low_thr_msb_addr; |
| 1712 | reg_high_thr_lsb = adc_tm_data[btm_chan_idx].high_thr_lsb_addr; |
| 1713 | reg_high_thr_msb = adc_tm_data[btm_chan_idx].high_thr_msb_addr; |
| 1714 | } else { |
| 1715 | reg_low_thr_lsb = QPNP_BTM_Mn_LOW_THR0(btm_chan_idx); |
| 1716 | reg_low_thr_msb = QPNP_BTM_Mn_LOW_THR1(btm_chan_idx); |
| 1717 | reg_high_thr_lsb = QPNP_BTM_Mn_HIGH_THR0(btm_chan_idx); |
| 1718 | reg_high_thr_msb = QPNP_BTM_Mn_HIGH_THR1(btm_chan_idx); |
| 1719 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1720 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1721 | if (high_temp != INT_MAX) { |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1722 | rc = qpnp_adc_tm_write_reg(chip, reg_low_thr_lsb, |
| 1723 | trip_cool_thr0, 1); |
| 1724 | if (rc) { |
| 1725 | pr_err("adc-tm_tm read threshold err\n"); |
| 1726 | return rc; |
| 1727 | } |
| 1728 | |
| 1729 | rc = qpnp_adc_tm_write_reg(chip, reg_low_thr_msb, |
| 1730 | trip_cool_thr1, 1); |
| 1731 | if (rc) { |
| 1732 | pr_err("adc-tm_tm read threshold err\n"); |
| 1733 | return rc; |
| 1734 | } |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1735 | adc_tm->low_thr = tm_config.high_thr_voltage; |
| 1736 | |
| 1737 | rc = qpnp_adc_tm_activate_trip_type(adc_tm, |
| 1738 | ADC_TM_TRIP_HIGH_WARM, |
| 1739 | THERMAL_TRIP_ACTIVATION_ENABLED); |
| 1740 | if (rc) { |
| 1741 | pr_err("adc-tm warm activation failed\n"); |
| 1742 | return rc; |
| 1743 | } |
| 1744 | } else { |
| 1745 | rc = qpnp_adc_tm_activate_trip_type(adc_tm, |
| 1746 | ADC_TM_TRIP_HIGH_WARM, |
| 1747 | THERMAL_TRIP_ACTIVATION_DISABLED); |
| 1748 | if (rc) { |
| 1749 | pr_err("adc-tm warm deactivation failed\n"); |
| 1750 | return rc; |
| 1751 | } |
| 1752 | } |
| 1753 | |
| 1754 | if (low_temp != INT_MIN) { |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1755 | rc = qpnp_adc_tm_write_reg(chip, reg_high_thr_lsb, |
| 1756 | trip_warm_thr0, 1); |
| 1757 | if (rc) { |
| 1758 | pr_err("adc-tm_tm read threshold err\n"); |
| 1759 | return rc; |
| 1760 | } |
| 1761 | |
| 1762 | rc = qpnp_adc_tm_write_reg(chip, reg_high_thr_msb, |
| 1763 | trip_warm_thr1, 1); |
| 1764 | if (rc) { |
| 1765 | pr_err("adc-tm_tm read threshold err\n"); |
| 1766 | return rc; |
| 1767 | } |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1768 | adc_tm->high_thr = tm_config.low_thr_voltage; |
| 1769 | |
| 1770 | rc = qpnp_adc_tm_activate_trip_type(adc_tm, |
| 1771 | ADC_TM_TRIP_LOW_COOL, |
| 1772 | THERMAL_TRIP_ACTIVATION_ENABLED); |
| 1773 | if (rc) { |
| 1774 | pr_err("adc-tm cool activation failed\n"); |
| 1775 | return rc; |
| 1776 | } |
| 1777 | } else { |
| 1778 | rc = qpnp_adc_tm_activate_trip_type(adc_tm, |
| 1779 | ADC_TM_TRIP_LOW_COOL, |
| 1780 | THERMAL_TRIP_ACTIVATION_DISABLED); |
| 1781 | if (rc) { |
| 1782 | pr_err("adc-tm cool deactivation failed\n"); |
| 1783 | return rc; |
| 1784 | } |
| 1785 | } |
| 1786 | |
| 1787 | if ((high_temp != INT_MAX) || (low_temp != INT_MIN)) { |
| 1788 | rc = qpnp_adc_tm_set_mode(adc_tm, THERMAL_DEVICE_ENABLED); |
| 1789 | if (rc) { |
| 1790 | pr_err("sensor enabled failed\n"); |
| 1791 | return rc; |
| 1792 | } |
| 1793 | } else { |
| 1794 | rc = qpnp_adc_tm_set_mode(adc_tm, THERMAL_DEVICE_DISABLED); |
| 1795 | if (rc) { |
| 1796 | pr_err("sensor disable failed\n"); |
| 1797 | return rc; |
| 1798 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1799 | } |
| 1800 | |
| 1801 | return 0; |
| 1802 | } |
| 1803 | |
| 1804 | static void notify_battery_therm(struct qpnp_adc_tm_sensor *adc_tm) |
| 1805 | { |
| 1806 | struct qpnp_adc_thr_client_info *client_info = NULL; |
| 1807 | |
| 1808 | list_for_each_entry(client_info, |
| 1809 | &adc_tm->thr_list, list) { |
| 1810 | /* Batt therm's warm temperature translates to low voltage */ |
| 1811 | if (client_info->notify_low_thr) { |
| 1812 | /* HIGH_STATE = WARM_TEMP for battery client */ |
| 1813 | client_info->btm_param->threshold_notification( |
| 1814 | ADC_TM_WARM_STATE, client_info->btm_param->btm_ctx); |
| 1815 | client_info->notify_low_thr = false; |
| 1816 | } |
| 1817 | |
| 1818 | /* Batt therm's cool temperature translates to high voltage */ |
| 1819 | if (client_info->notify_high_thr) { |
| 1820 | /* LOW_STATE = COOL_TEMP for battery client */ |
| 1821 | client_info->btm_param->threshold_notification( |
| 1822 | ADC_TM_COOL_STATE, client_info->btm_param->btm_ctx); |
| 1823 | client_info->notify_high_thr = false; |
| 1824 | } |
| 1825 | } |
| 1826 | } |
| 1827 | |
| 1828 | static void notify_clients(struct qpnp_adc_tm_sensor *adc_tm) |
| 1829 | { |
| 1830 | struct qpnp_adc_thr_client_info *client_info = NULL; |
| 1831 | |
| 1832 | list_for_each_entry(client_info, |
| 1833 | &adc_tm->thr_list, list) { |
| 1834 | /* For non batt therm clients */ |
| 1835 | if (client_info->notify_low_thr) { |
| 1836 | if (client_info->btm_param->threshold_notification |
| 1837 | != NULL) { |
| 1838 | pr_debug("notify kernel with low state\n"); |
| 1839 | client_info->btm_param->threshold_notification( |
| 1840 | ADC_TM_LOW_STATE, |
| 1841 | client_info->btm_param->btm_ctx); |
| 1842 | client_info->notify_low_thr = false; |
| 1843 | } |
| 1844 | } |
| 1845 | |
| 1846 | if (client_info->notify_high_thr) { |
| 1847 | if (client_info->btm_param->threshold_notification |
| 1848 | != NULL) { |
| 1849 | pr_debug("notify kernel with high state\n"); |
| 1850 | client_info->btm_param->threshold_notification( |
| 1851 | ADC_TM_HIGH_STATE, |
| 1852 | client_info->btm_param->btm_ctx); |
| 1853 | client_info->notify_high_thr = false; |
| 1854 | } |
| 1855 | } |
| 1856 | } |
| 1857 | } |
| 1858 | |
| 1859 | static void notify_adc_tm_fn(struct work_struct *work) |
| 1860 | { |
| 1861 | struct qpnp_adc_tm_sensor *adc_tm = container_of(work, |
| 1862 | struct qpnp_adc_tm_sensor, work); |
| 1863 | struct qpnp_adc_tm_chip *chip = adc_tm->chip; |
| 1864 | |
| 1865 | if (adc_tm->thermal_node) { |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1866 | pr_debug("notifying uspace client\n"); |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 1867 | of_thermal_handle_trip(adc_tm->tz_dev); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 1868 | } else { |
| 1869 | if (adc_tm->scale_type == SCALE_RBATT_THERM) |
| 1870 | notify_battery_therm(adc_tm); |
| 1871 | else |
| 1872 | notify_clients(adc_tm); |
| 1873 | } |
| 1874 | |
| 1875 | atomic_dec(&chip->wq_cnt); |
| 1876 | } |
| 1877 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 1878 | static int qpnp_adc_tm_recalib_request_check(struct qpnp_adc_tm_chip *chip, |
| 1879 | int sensor_num, u8 status_high, u8 *notify_check) |
| 1880 | { |
| 1881 | int rc = 0; |
| 1882 | u8 sensor_mask = 0, mode_ctl = 0; |
| 1883 | int32_t old_thr = 0, new_thr = 0; |
| 1884 | uint32_t channel, btm_chan_num, scale_type; |
| 1885 | struct qpnp_vadc_result result; |
| 1886 | struct qpnp_adc_thr_client_info *client_info = NULL; |
| 1887 | struct list_head *thr_list; |
| 1888 | bool status = false; |
| 1889 | |
| 1890 | if (!chip->adc_tm_recalib_check) { |
| 1891 | *notify_check = 1; |
| 1892 | return rc; |
| 1893 | } |
| 1894 | |
| 1895 | list_for_each(thr_list, &chip->sensor[sensor_num].thr_list) { |
| 1896 | client_info = list_entry(thr_list, |
| 1897 | struct qpnp_adc_thr_client_info, list); |
| 1898 | channel = client_info->btm_param->channel; |
| 1899 | btm_chan_num = chip->sensor[sensor_num].btm_channel_num; |
| 1900 | sensor_mask = 1 << sensor_num; |
| 1901 | |
| 1902 | rc = qpnp_vadc_read(chip->vadc_dev, channel, &result); |
| 1903 | if (rc < 0) { |
| 1904 | pr_err("failure to read vadc channel=%d\n", |
| 1905 | client_info->btm_param->channel); |
| 1906 | goto fail; |
| 1907 | } |
| 1908 | new_thr = result.physical; |
| 1909 | |
| 1910 | if (status_high) |
| 1911 | old_thr = client_info->btm_param->high_thr; |
| 1912 | else |
| 1913 | old_thr = client_info->btm_param->low_thr; |
| 1914 | |
| 1915 | if (new_thr > old_thr) |
| 1916 | status = (status_high) ? true : false; |
| 1917 | else |
| 1918 | status = (status_high) ? false : true; |
| 1919 | |
| 1920 | pr_debug( |
| 1921 | "recalib:sen=%d, new_thr=%d, new_thr_adc_code=0x%x, old_thr=%d status=%d valid_status=%d\n", |
| 1922 | sensor_num, new_thr, result.adc_code, |
| 1923 | old_thr, status_high, status); |
| 1924 | |
| 1925 | rc = qpnp_adc_tm_read_thr_value(chip, btm_chan_num); |
| 1926 | if (rc < 0) { |
| 1927 | pr_err("adc-tm thresholds read failed\n"); |
| 1928 | goto fail; |
| 1929 | } |
| 1930 | |
| 1931 | if (status) { |
| 1932 | *notify_check = 1; |
| 1933 | pr_debug("Client can be notify\n"); |
| 1934 | return rc; |
| 1935 | } |
| 1936 | |
| 1937 | pr_debug("Client can not be notify, restart measurement\n"); |
| 1938 | /* Set measurement in single measurement mode */ |
| 1939 | mode_ctl = ADC_OP_NORMAL_MODE << QPNP_OP_MODE_SHIFT; |
| 1940 | rc = qpnp_adc_tm_mode_select(chip, mode_ctl); |
| 1941 | if (rc < 0) { |
| 1942 | pr_err("adc-tm single mode select failed\n"); |
| 1943 | goto fail; |
| 1944 | } |
| 1945 | |
| 1946 | /* Disable bank */ |
| 1947 | rc = qpnp_adc_tm_disable(chip); |
| 1948 | if (rc < 0) { |
| 1949 | pr_err("adc-tm disable failed\n"); |
| 1950 | goto fail; |
| 1951 | } |
| 1952 | |
| 1953 | /* Check if a conversion is in progress */ |
| 1954 | rc = qpnp_adc_tm_req_sts_check(chip); |
| 1955 | if (rc < 0) { |
| 1956 | pr_err("adc-tm req_sts check failed\n"); |
| 1957 | goto fail; |
| 1958 | } |
| 1959 | |
| 1960 | rc = qpnp_adc_tm_reg_update(chip, QPNP_ADC_TM_LOW_THR_INT_EN, |
| 1961 | sensor_mask, false); |
| 1962 | if (rc < 0) { |
| 1963 | pr_err("low threshold int write failed\n"); |
| 1964 | goto fail; |
| 1965 | } |
| 1966 | |
| 1967 | rc = qpnp_adc_tm_reg_update(chip, QPNP_ADC_TM_HIGH_THR_INT_EN, |
| 1968 | sensor_mask, false); |
| 1969 | if (rc < 0) { |
| 1970 | pr_err("high threshold int enable failed\n"); |
| 1971 | goto fail; |
| 1972 | } |
| 1973 | |
| 1974 | rc = qpnp_adc_tm_reg_update(chip, QPNP_ADC_TM_MULTI_MEAS_EN, |
| 1975 | sensor_mask, false); |
| 1976 | if (rc < 0) { |
| 1977 | pr_err("multi measurement en failed\n"); |
| 1978 | goto fail; |
| 1979 | } |
| 1980 | |
| 1981 | /* restart measurement */ |
| 1982 | scale_type = chip->sensor[sensor_num].scale_type; |
| 1983 | chip->adc->amux_prop->amux_channel = channel; |
| 1984 | chip->adc->amux_prop->decimation = |
| 1985 | chip->adc->adc_channels[sensor_num].adc_decimation; |
| 1986 | chip->adc->amux_prop->hw_settle_time = |
| 1987 | chip->adc->adc_channels[sensor_num].hw_settle_time; |
| 1988 | chip->adc->amux_prop->fast_avg_setup = |
| 1989 | chip->adc->adc_channels[sensor_num].fast_avg_setup; |
| 1990 | chip->adc->amux_prop->mode_sel = |
| 1991 | ADC_OP_MEASUREMENT_INTERVAL << QPNP_OP_MODE_SHIFT; |
| 1992 | adc_tm_rscale_fn[scale_type].chan(chip->vadc_dev, |
| 1993 | client_info->btm_param, |
| 1994 | &chip->adc->amux_prop->chan_prop->low_thr, |
| 1995 | &chip->adc->amux_prop->chan_prop->high_thr); |
| 1996 | qpnp_adc_tm_add_to_list(chip, sensor_num, |
| 1997 | client_info->btm_param, |
| 1998 | chip->adc->amux_prop->chan_prop); |
| 1999 | chip->adc->amux_prop->chan_prop->tm_channel_select = |
| 2000 | chip->sensor[sensor_num].btm_channel_num; |
| 2001 | chip->adc->amux_prop->chan_prop->state_request = |
| 2002 | client_info->btm_param->state_request; |
| 2003 | |
| 2004 | rc = qpnp_adc_tm_configure(chip, chip->adc->amux_prop); |
| 2005 | if (rc) { |
| 2006 | pr_err("adc-tm configure failed with %d\n", rc); |
| 2007 | goto fail; |
| 2008 | } |
| 2009 | *notify_check = 0; |
| 2010 | pr_debug("BTM channel reconfigured for measuremnt\n"); |
| 2011 | } |
| 2012 | fail: |
| 2013 | return rc; |
| 2014 | } |
| 2015 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2016 | static int qpnp_adc_tm_disable_rearm_high_thresholds( |
| 2017 | struct qpnp_adc_tm_chip *chip, int sensor_num) |
| 2018 | { |
| 2019 | |
| 2020 | struct qpnp_adc_thr_client_info *client_info = NULL; |
| 2021 | struct list_head *thr_list; |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2022 | uint32_t btm_chan_num = 0, btm_chan_idx = 0; |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2023 | u8 sensor_mask = 0, notify_check = 0; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2024 | int rc = 0; |
| 2025 | |
| 2026 | btm_chan_num = chip->sensor[sensor_num].btm_channel_num; |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2027 | rc = qpnp_adc_tm_get_btm_idx(chip, btm_chan_num, &btm_chan_idx); |
| 2028 | if (rc < 0) { |
| 2029 | pr_err("Invalid btm channel idx\n"); |
| 2030 | return rc; |
| 2031 | } |
| 2032 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2033 | pr_debug("high:sen:%d, hs:0x%x, ls:0x%x, meas_en:0x%x\n", |
| 2034 | sensor_num, chip->th_info.adc_tm_high_enable, |
| 2035 | chip->th_info.adc_tm_low_enable, |
| 2036 | chip->th_info.qpnp_adc_tm_meas_en); |
| 2037 | if (!chip->sensor[sensor_num].thermal_node) { |
| 2038 | /* |
| 2039 | * For non thermal registered clients such as usb_id, |
| 2040 | * vbatt, pmic_therm |
| 2041 | */ |
| 2042 | sensor_mask = 1 << sensor_num; |
| 2043 | pr_debug("non thermal node - mask:%x\n", sensor_mask); |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2044 | if (!chip->adc_tm_hc) { |
| 2045 | rc = qpnp_adc_tm_recalib_request_check(chip, |
| 2046 | sensor_num, true, ¬ify_check); |
| 2047 | if (rc < 0 || !notify_check) { |
| 2048 | pr_debug("Calib recheck re-armed rc=%d\n", rc); |
| 2049 | chip->th_info.adc_tm_high_enable = 0; |
| 2050 | return rc; |
| 2051 | } |
| 2052 | } else { |
| 2053 | rc = qpnp_adc_tm_reg_update(chip, |
| 2054 | QPNP_BTM_Mn_EN(btm_chan_idx), |
| 2055 | QPNP_BTM_Mn_HIGH_THR_INT_EN, false); |
| 2056 | if (rc < 0) { |
| 2057 | pr_err("high threshold int update failed\n"); |
| 2058 | return rc; |
| 2059 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2060 | } |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2061 | } else { |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2062 | /* |
| 2063 | * Uses the thermal sysfs registered device to disable |
| 2064 | * the corresponding high voltage threshold which |
| 2065 | * is triggered by low temp |
| 2066 | */ |
| 2067 | sensor_mask = 1 << sensor_num; |
| 2068 | pr_debug("thermal node with mask:%x\n", sensor_mask); |
| 2069 | rc = qpnp_adc_tm_activate_trip_type( |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2070 | &chip->sensor[sensor_num], |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2071 | ADC_TM_TRIP_LOW_COOL, |
| 2072 | THERMAL_TRIP_ACTIVATION_DISABLED); |
| 2073 | if (rc < 0) { |
| 2074 | pr_err("notify error:%d\n", sensor_num); |
| 2075 | return rc; |
| 2076 | } |
| 2077 | } |
| 2078 | list_for_each(thr_list, &chip->sensor[sensor_num].thr_list) { |
| 2079 | client_info = list_entry(thr_list, |
| 2080 | struct qpnp_adc_thr_client_info, list); |
| 2081 | if (client_info->high_thr_set) { |
| 2082 | client_info->high_thr_set = false; |
| 2083 | client_info->notify_high_thr = true; |
| 2084 | if (client_info->state_req_copy == |
| 2085 | ADC_TM_HIGH_LOW_THR_ENABLE) |
| 2086 | client_info->state_req_copy = |
| 2087 | ADC_TM_LOW_THR_ENABLE; |
| 2088 | else |
| 2089 | client_info->state_req_copy = |
| 2090 | ADC_TM_HIGH_THR_DISABLE; |
| 2091 | } |
| 2092 | } |
| 2093 | qpnp_adc_tm_manage_thresholds(chip, sensor_num, btm_chan_num); |
| 2094 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2095 | if (!chip->adc_tm_hc) { |
| 2096 | rc = qpnp_adc_tm_reg_update(chip, |
| 2097 | QPNP_ADC_TM_MULTI_MEAS_EN, |
| 2098 | sensor_mask, false); |
| 2099 | if (rc < 0) { |
| 2100 | pr_err("multi meas disable failed\n"); |
| 2101 | return rc; |
| 2102 | } |
| 2103 | } else { |
| 2104 | rc = qpnp_adc_tm_reg_update(chip, |
| 2105 | QPNP_BTM_Mn_EN(sensor_num), |
| 2106 | QPNP_BTM_Mn_MEAS_EN, false); |
| 2107 | if (rc < 0) { |
| 2108 | pr_err("multi meas disable failed\n"); |
| 2109 | return rc; |
| 2110 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2111 | } |
| 2112 | |
| 2113 | rc = qpnp_adc_tm_enable_if_channel_meas(chip); |
| 2114 | if (rc < 0) { |
| 2115 | pr_err("re-enabling measurement failed\n"); |
| 2116 | return rc; |
| 2117 | } |
| 2118 | |
Siddartha Mohanadoss | 336fff4 | 2017-12-11 16:51:00 -0800 | [diff] [blame] | 2119 | if (!queue_work(chip->sensor[sensor_num].req_wq, |
| 2120 | &chip->sensor[sensor_num].work)) { |
| 2121 | /* The item is already queued, reduce the count */ |
| 2122 | atomic_dec(&chip->wq_cnt); |
| 2123 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2124 | |
| 2125 | return rc; |
| 2126 | } |
| 2127 | |
| 2128 | static int qpnp_adc_tm_disable_rearm_low_thresholds( |
| 2129 | struct qpnp_adc_tm_chip *chip, int sensor_num) |
| 2130 | { |
| 2131 | struct qpnp_adc_thr_client_info *client_info = NULL; |
| 2132 | struct list_head *thr_list; |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2133 | uint32_t btm_chan_num = 0, btm_chan_idx = 0; |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2134 | u8 sensor_mask = 0, notify_check = 0; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2135 | int rc = 0; |
| 2136 | |
| 2137 | btm_chan_num = chip->sensor[sensor_num].btm_channel_num; |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2138 | rc = qpnp_adc_tm_get_btm_idx(chip, btm_chan_num, &btm_chan_idx); |
| 2139 | if (rc < 0) { |
| 2140 | pr_err("Invalid btm channel idx\n"); |
| 2141 | return rc; |
| 2142 | } |
| 2143 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2144 | pr_debug("low:sen:%d, hs:0x%x, ls:0x%x, meas_en:0x%x\n", |
| 2145 | sensor_num, chip->th_info.adc_tm_high_enable, |
| 2146 | chip->th_info.adc_tm_low_enable, |
| 2147 | chip->th_info.qpnp_adc_tm_meas_en); |
| 2148 | if (!chip->sensor[sensor_num].thermal_node) { |
| 2149 | /* |
| 2150 | * For non thermal registered clients such as usb_id, |
| 2151 | * vbatt, pmic_therm |
| 2152 | */ |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2153 | sensor_mask = 1 << sensor_num; |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2154 | pr_debug("non thermal node - mask:%x\n", sensor_mask); |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2155 | if (!chip->adc_tm_hc) { |
| 2156 | rc = qpnp_adc_tm_recalib_request_check(chip, |
| 2157 | sensor_num, false, ¬ify_check); |
| 2158 | if (rc < 0 || !notify_check) { |
| 2159 | pr_debug("Calib recheck re-armed rc=%d\n", rc); |
| 2160 | chip->th_info.adc_tm_low_enable = 0; |
| 2161 | return rc; |
| 2162 | } |
| 2163 | } else { |
| 2164 | rc = qpnp_adc_tm_reg_update(chip, |
| 2165 | QPNP_BTM_Mn_EN(btm_chan_idx), |
| 2166 | QPNP_BTM_Mn_LOW_THR_INT_EN, false); |
| 2167 | if (rc < 0) { |
| 2168 | pr_err("low threshold int update failed\n"); |
| 2169 | return rc; |
| 2170 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2171 | } |
| 2172 | } else { |
| 2173 | /* |
| 2174 | * Uses the thermal sysfs registered device to disable |
| 2175 | * the corresponding high voltage threshold which |
| 2176 | * is triggered by low temp |
| 2177 | */ |
| 2178 | sensor_mask = 1 << sensor_num; |
| 2179 | pr_debug("thermal node with mask:%x\n", sensor_mask); |
| 2180 | rc = qpnp_adc_tm_activate_trip_type( |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2181 | &chip->sensor[sensor_num], |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2182 | ADC_TM_TRIP_HIGH_WARM, |
| 2183 | THERMAL_TRIP_ACTIVATION_DISABLED); |
| 2184 | if (rc < 0) { |
| 2185 | pr_err("notify error:%d\n", sensor_num); |
| 2186 | return rc; |
| 2187 | } |
| 2188 | } |
| 2189 | list_for_each(thr_list, &chip->sensor[sensor_num].thr_list) { |
| 2190 | client_info = list_entry(thr_list, |
| 2191 | struct qpnp_adc_thr_client_info, list); |
| 2192 | if (client_info->low_thr_set) { |
| 2193 | client_info->low_thr_set = false; |
| 2194 | client_info->notify_low_thr = true; |
| 2195 | if (client_info->state_req_copy == |
| 2196 | ADC_TM_HIGH_LOW_THR_ENABLE) |
| 2197 | client_info->state_req_copy = |
| 2198 | ADC_TM_HIGH_THR_ENABLE; |
| 2199 | else |
| 2200 | client_info->state_req_copy = |
| 2201 | ADC_TM_LOW_THR_DISABLE; |
| 2202 | } |
| 2203 | } |
| 2204 | qpnp_adc_tm_manage_thresholds(chip, sensor_num, btm_chan_num); |
| 2205 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2206 | if (!chip->adc_tm_hc) { |
| 2207 | rc = qpnp_adc_tm_reg_update(chip, |
| 2208 | QPNP_ADC_TM_MULTI_MEAS_EN, |
| 2209 | sensor_mask, false); |
| 2210 | if (rc < 0) { |
| 2211 | pr_err("multi meas disable failed\n"); |
| 2212 | return rc; |
| 2213 | } |
| 2214 | } else { |
| 2215 | rc = qpnp_adc_tm_reg_update(chip, |
| 2216 | QPNP_BTM_Mn_EN(sensor_num), |
| 2217 | QPNP_BTM_Mn_MEAS_EN, false); |
| 2218 | if (rc < 0) { |
| 2219 | pr_err("multi meas disable failed\n"); |
| 2220 | return rc; |
| 2221 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2222 | } |
| 2223 | |
| 2224 | rc = qpnp_adc_tm_enable_if_channel_meas(chip); |
| 2225 | if (rc < 0) { |
| 2226 | pr_err("re-enabling measurement failed\n"); |
| 2227 | return rc; |
| 2228 | } |
| 2229 | |
Siddartha Mohanadoss | 336fff4 | 2017-12-11 16:51:00 -0800 | [diff] [blame] | 2230 | if (!queue_work(chip->sensor[sensor_num].req_wq, |
| 2231 | &chip->sensor[sensor_num].work)) { |
| 2232 | /* The item is already queued, reduce the count */ |
| 2233 | atomic_dec(&chip->wq_cnt); |
| 2234 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2235 | |
| 2236 | return rc; |
| 2237 | } |
| 2238 | |
| 2239 | static int qpnp_adc_tm_read_status(struct qpnp_adc_tm_chip *chip) |
| 2240 | { |
| 2241 | int rc = 0, sensor_num = 0; |
| 2242 | |
| 2243 | if (qpnp_adc_tm_is_valid(chip)) |
| 2244 | return -ENODEV; |
| 2245 | |
| 2246 | pr_debug("%s\n", __func__); |
| 2247 | |
| 2248 | mutex_lock(&chip->adc->adc_lock); |
| 2249 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2250 | if (!chip->adc_tm_hc) { |
| 2251 | rc = qpnp_adc_tm_req_sts_check(chip); |
| 2252 | if (rc) { |
| 2253 | pr_err("adc-tm-tm req sts check failed with %d\n", rc); |
| 2254 | goto fail; |
| 2255 | } |
| 2256 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2257 | while (sensor_num < chip->max_channels_available) { |
| 2258 | if (chip->sensor[sensor_num].high_thr_triggered) { |
| 2259 | rc = qpnp_adc_tm_disable_rearm_high_thresholds( |
| 2260 | chip, sensor_num); |
| 2261 | if (rc) { |
| 2262 | pr_err("rearm threshold failed\n"); |
| 2263 | goto fail; |
| 2264 | } |
| 2265 | chip->sensor[sensor_num].high_thr_triggered = false; |
| 2266 | } |
| 2267 | sensor_num++; |
| 2268 | } |
| 2269 | |
| 2270 | sensor_num = 0; |
| 2271 | while (sensor_num < chip->max_channels_available) { |
| 2272 | if (chip->sensor[sensor_num].low_thr_triggered) { |
| 2273 | rc = qpnp_adc_tm_disable_rearm_low_thresholds( |
| 2274 | chip, sensor_num); |
| 2275 | if (rc) { |
| 2276 | pr_err("rearm threshold failed\n"); |
| 2277 | goto fail; |
| 2278 | } |
| 2279 | chip->sensor[sensor_num].low_thr_triggered = false; |
| 2280 | } |
| 2281 | sensor_num++; |
| 2282 | } |
| 2283 | |
| 2284 | fail: |
| 2285 | mutex_unlock(&chip->adc->adc_lock); |
| 2286 | |
| 2287 | if (rc < 0 || (!chip->th_info.adc_tm_high_enable && |
| 2288 | !chip->th_info.adc_tm_low_enable)) |
| 2289 | atomic_dec(&chip->wq_cnt); |
| 2290 | |
| 2291 | return rc; |
| 2292 | } |
| 2293 | |
| 2294 | static void qpnp_adc_tm_high_thr_work(struct work_struct *work) |
| 2295 | { |
| 2296 | struct qpnp_adc_tm_chip *chip = container_of(work, |
| 2297 | struct qpnp_adc_tm_chip, trigger_high_thr_work); |
| 2298 | int rc; |
| 2299 | |
| 2300 | /* disable the vote if applicable */ |
| 2301 | if (chip->adc_vote_enable && chip->adc->hkadc_ldo && |
| 2302 | chip->adc->hkadc_ldo_ok) { |
| 2303 | qpnp_adc_disable_voltage(chip->adc); |
| 2304 | chip->adc_vote_enable = false; |
| 2305 | } |
| 2306 | |
| 2307 | pr_debug("thr:0x%x\n", chip->th_info.adc_tm_high_enable); |
| 2308 | |
| 2309 | rc = qpnp_adc_tm_read_status(chip); |
| 2310 | if (rc < 0) |
| 2311 | pr_err("adc-tm high thr work failed\n"); |
| 2312 | } |
| 2313 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2314 | static irqreturn_t qpnp_adc_tm_high_thr_isr(int irq, void *data) |
| 2315 | { |
| 2316 | struct qpnp_adc_tm_chip *chip = data; |
| 2317 | u8 mode_ctl = 0, status1 = 0, sensor_mask = 0; |
| 2318 | int rc = 0, sensor_notify_num = 0, i = 0, sensor_num = 0; |
| 2319 | |
| 2320 | mode_ctl = ADC_OP_NORMAL_MODE << QPNP_OP_MODE_SHIFT; |
| 2321 | /* Set measurement in single measurement mode */ |
| 2322 | qpnp_adc_tm_mode_select(chip, mode_ctl); |
| 2323 | |
| 2324 | qpnp_adc_tm_disable(chip); |
| 2325 | |
| 2326 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_STATUS1, &status1, 1); |
| 2327 | if (rc) { |
| 2328 | pr_err("adc-tm read status1 failed\n"); |
| 2329 | return IRQ_HANDLED; |
| 2330 | } |
| 2331 | |
| 2332 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_STATUS_HIGH, |
| 2333 | &chip->th_info.status_high, 1); |
| 2334 | if (rc) { |
| 2335 | pr_err("adc-tm-tm read status high failed with %d\n", rc); |
| 2336 | return IRQ_HANDLED; |
| 2337 | } |
| 2338 | |
| 2339 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_HIGH_THR_INT_EN, |
| 2340 | &chip->th_info.adc_tm_high_thr_set, 1); |
| 2341 | if (rc) { |
| 2342 | pr_err("adc-tm-tm read high thr failed with %d\n", rc); |
| 2343 | return IRQ_HANDLED; |
| 2344 | } |
| 2345 | |
| 2346 | /* Check which interrupt threshold is lower and measure against the |
| 2347 | * enabled channel |
| 2348 | */ |
| 2349 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_MULTI_MEAS_EN, |
| 2350 | &chip->th_info.qpnp_adc_tm_meas_en, 1); |
| 2351 | if (rc) { |
| 2352 | pr_err("adc-tm-tm read status high failed with %d\n", rc); |
| 2353 | return IRQ_HANDLED; |
| 2354 | } |
| 2355 | |
| 2356 | chip->th_info.adc_tm_high_enable = chip->th_info.qpnp_adc_tm_meas_en & |
| 2357 | chip->th_info.status_high; |
| 2358 | chip->th_info.adc_tm_high_enable &= chip->th_info.adc_tm_high_thr_set; |
| 2359 | |
| 2360 | sensor_notify_num = chip->th_info.adc_tm_high_enable; |
| 2361 | while (i < chip->max_channels_available) { |
| 2362 | if ((sensor_notify_num & 0x1) == 1) |
| 2363 | sensor_num = i; |
| 2364 | sensor_notify_num >>= 1; |
| 2365 | i++; |
| 2366 | } |
| 2367 | |
| 2368 | if (!chip->sensor[sensor_num].thermal_node) { |
| 2369 | sensor_mask = 1 << sensor_num; |
| 2370 | rc = qpnp_adc_tm_reg_update(chip, |
| 2371 | QPNP_ADC_TM_HIGH_THR_INT_EN, |
| 2372 | sensor_mask, false); |
| 2373 | if (rc < 0) { |
| 2374 | pr_err("high threshold int read failed\n"); |
| 2375 | return IRQ_HANDLED; |
| 2376 | } |
| 2377 | } else { |
| 2378 | /* |
| 2379 | * Uses the thermal sysfs registered device to disable |
| 2380 | * the corresponding high voltage threshold which |
| 2381 | * is triggered by low temp |
| 2382 | */ |
| 2383 | pr_debug("thermal node with mask:%x\n", sensor_mask); |
| 2384 | rc = qpnp_adc_tm_activate_trip_type( |
| 2385 | &chip->sensor[sensor_num], |
| 2386 | ADC_TM_TRIP_LOW_COOL, |
| 2387 | THERMAL_TRIP_ACTIVATION_DISABLED); |
| 2388 | if (rc < 0) { |
| 2389 | pr_err("notify error:%d\n", sensor_num); |
| 2390 | return IRQ_HANDLED; |
| 2391 | } |
| 2392 | } |
| 2393 | |
| 2394 | atomic_inc(&chip->wq_cnt); |
| 2395 | queue_work(chip->high_thr_wq, &chip->trigger_high_thr_work); |
| 2396 | |
| 2397 | return IRQ_HANDLED; |
| 2398 | } |
| 2399 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2400 | static void qpnp_adc_tm_low_thr_work(struct work_struct *work) |
| 2401 | { |
| 2402 | struct qpnp_adc_tm_chip *chip = container_of(work, |
| 2403 | struct qpnp_adc_tm_chip, trigger_low_thr_work); |
| 2404 | int rc; |
| 2405 | |
| 2406 | /* disable the vote if applicable */ |
| 2407 | if (chip->adc_vote_enable && chip->adc->hkadc_ldo && |
| 2408 | chip->adc->hkadc_ldo_ok) { |
| 2409 | qpnp_adc_disable_voltage(chip->adc); |
| 2410 | chip->adc_vote_enable = false; |
| 2411 | } |
| 2412 | |
| 2413 | pr_debug("thr:0x%x\n", chip->th_info.adc_tm_low_enable); |
| 2414 | |
| 2415 | rc = qpnp_adc_tm_read_status(chip); |
| 2416 | if (rc < 0) |
| 2417 | pr_err("adc-tm low thr work failed\n"); |
| 2418 | } |
| 2419 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2420 | static irqreturn_t qpnp_adc_tm_low_thr_isr(int irq, void *data) |
| 2421 | { |
| 2422 | struct qpnp_adc_tm_chip *chip = data; |
| 2423 | u8 mode_ctl = 0, status1 = 0, sensor_mask = 0; |
| 2424 | int rc = 0, sensor_notify_num = 0, i = 0, sensor_num = 0; |
| 2425 | |
| 2426 | mode_ctl = ADC_OP_NORMAL_MODE << QPNP_OP_MODE_SHIFT; |
| 2427 | /* Set measurement in single measurement mode */ |
| 2428 | qpnp_adc_tm_mode_select(chip, mode_ctl); |
| 2429 | |
| 2430 | qpnp_adc_tm_disable(chip); |
| 2431 | |
| 2432 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_STATUS1, &status1, 1); |
| 2433 | if (rc) { |
| 2434 | pr_err("adc-tm read status1 failed\n"); |
| 2435 | return IRQ_HANDLED; |
| 2436 | } |
| 2437 | |
| 2438 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_STATUS_LOW, |
| 2439 | &chip->th_info.status_low, 1); |
| 2440 | if (rc) { |
| 2441 | pr_err("adc-tm-tm read status low failed with %d\n", rc); |
| 2442 | return IRQ_HANDLED; |
| 2443 | } |
| 2444 | |
| 2445 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_LOW_THR_INT_EN, |
| 2446 | &chip->th_info.adc_tm_low_thr_set, 1); |
| 2447 | if (rc) { |
| 2448 | pr_err("adc-tm-tm read low thr failed with %d\n", rc); |
| 2449 | return IRQ_HANDLED; |
| 2450 | } |
| 2451 | |
| 2452 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_MULTI_MEAS_EN, |
| 2453 | &chip->th_info.qpnp_adc_tm_meas_en, 1); |
| 2454 | if (rc) { |
| 2455 | pr_err("adc-tm-tm read status high failed with %d\n", rc); |
| 2456 | return IRQ_HANDLED; |
| 2457 | } |
| 2458 | |
| 2459 | chip->th_info.adc_tm_low_enable = chip->th_info.qpnp_adc_tm_meas_en & |
| 2460 | chip->th_info.status_low; |
| 2461 | chip->th_info.adc_tm_low_enable &= chip->th_info.adc_tm_low_thr_set; |
| 2462 | |
| 2463 | sensor_notify_num = chip->th_info.adc_tm_low_enable; |
| 2464 | while (i < chip->max_channels_available) { |
| 2465 | if ((sensor_notify_num & 0x1) == 1) |
| 2466 | sensor_num = i; |
| 2467 | sensor_notify_num >>= 1; |
| 2468 | i++; |
| 2469 | } |
| 2470 | |
| 2471 | if (!chip->sensor[sensor_num].thermal_node) { |
| 2472 | sensor_mask = 1 << sensor_num; |
| 2473 | rc = qpnp_adc_tm_reg_update(chip, |
| 2474 | QPNP_ADC_TM_LOW_THR_INT_EN, |
| 2475 | sensor_mask, false); |
| 2476 | if (rc < 0) { |
| 2477 | pr_err("low threshold int read failed\n"); |
| 2478 | return IRQ_HANDLED; |
| 2479 | } |
| 2480 | } else { |
| 2481 | /* |
| 2482 | * Uses the thermal sysfs registered device to disable |
| 2483 | * the corresponding low voltage threshold which |
| 2484 | * is triggered by high temp |
| 2485 | */ |
| 2486 | pr_debug("thermal node with mask:%x\n", sensor_mask); |
| 2487 | rc = qpnp_adc_tm_activate_trip_type( |
| 2488 | &chip->sensor[sensor_num], |
| 2489 | ADC_TM_TRIP_HIGH_WARM, |
| 2490 | THERMAL_TRIP_ACTIVATION_DISABLED); |
| 2491 | if (rc < 0) { |
| 2492 | pr_err("notify error:%d\n", sensor_num); |
| 2493 | return IRQ_HANDLED; |
| 2494 | } |
| 2495 | } |
| 2496 | |
| 2497 | atomic_inc(&chip->wq_cnt); |
| 2498 | queue_work(chip->low_thr_wq, &chip->trigger_low_thr_work); |
| 2499 | |
| 2500 | return IRQ_HANDLED; |
| 2501 | } |
| 2502 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2503 | static int qpnp_adc_tm_rc_check_sensor_trip(struct qpnp_adc_tm_chip *chip, |
| 2504 | u8 status_low, u8 status_high, int i, |
| 2505 | int *sensor_low_notify_num, int *sensor_high_notify_num) |
| 2506 | { |
| 2507 | int rc = 0; |
| 2508 | u8 ctl = 0, sensor_mask = 0; |
| 2509 | |
| 2510 | if (((status_low & 0x1) == 1) || ((status_high & 0x1) == 1)) { |
| 2511 | rc = qpnp_adc_tm_read_reg(chip, |
| 2512 | QPNP_BTM_Mn_EN(i), &ctl, 1); |
| 2513 | if (rc) { |
| 2514 | pr_err("ctl read failed with %d\n", rc); |
| 2515 | return IRQ_HANDLED; |
| 2516 | } |
| 2517 | |
| 2518 | if ((status_low & 0x1) && (ctl & QPNP_BTM_Mn_MEAS_EN) |
| 2519 | && (ctl & QPNP_BTM_Mn_LOW_THR_INT_EN)) { |
| 2520 | /* Mask the corresponding low threshold interrupt en */ |
| 2521 | if (!chip->sensor[i].thermal_node) { |
| 2522 | rc = qpnp_adc_tm_reg_update(chip, |
| 2523 | QPNP_BTM_Mn_EN(i), |
| 2524 | QPNP_BTM_Mn_LOW_THR_INT_EN, false); |
| 2525 | if (rc < 0) { |
| 2526 | pr_err("low thr_int en failed\n"); |
| 2527 | return IRQ_HANDLED; |
| 2528 | } |
| 2529 | } else { |
| 2530 | /* |
| 2531 | * Uses the thermal sysfs registered device to disable |
| 2532 | * the corresponding low voltage threshold which |
| 2533 | * is triggered by high temp |
| 2534 | */ |
| 2535 | pr_debug("thermal node with mask:%x\n", sensor_mask); |
| 2536 | rc = qpnp_adc_tm_activate_trip_type( |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2537 | &chip->sensor[i], |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2538 | ADC_TM_TRIP_HIGH_WARM, |
| 2539 | THERMAL_TRIP_ACTIVATION_DISABLED); |
| 2540 | if (rc < 0) { |
| 2541 | pr_err("notify error:%d\n", i); |
| 2542 | return IRQ_HANDLED; |
| 2543 | } |
| 2544 | } |
| 2545 | *sensor_low_notify_num |= (status_low & 0x1); |
| 2546 | chip->sensor[i].low_thr_triggered = true; |
| 2547 | } |
| 2548 | |
| 2549 | if ((status_high & 0x1) && (ctl & QPNP_BTM_Mn_MEAS_EN) && |
| 2550 | (ctl & QPNP_BTM_Mn_HIGH_THR_INT_EN)) { |
| 2551 | /* Mask the corresponding high threshold interrupt en */ |
| 2552 | if (!chip->sensor[i].thermal_node) { |
| 2553 | rc = qpnp_adc_tm_reg_update(chip, |
| 2554 | QPNP_BTM_Mn_EN(i), |
| 2555 | QPNP_BTM_Mn_HIGH_THR_INT_EN, false); |
| 2556 | if (rc < 0) { |
| 2557 | pr_err("high thr_int en failed\n"); |
| 2558 | return IRQ_HANDLED; |
| 2559 | } |
| 2560 | } else { |
| 2561 | /* |
| 2562 | * Uses the thermal sysfs registered device to disable |
| 2563 | * the corresponding high voltage threshold which |
| 2564 | * is triggered by low temp |
| 2565 | */ |
| 2566 | pr_debug("thermal node with mask:%x\n", i); |
| 2567 | rc = qpnp_adc_tm_activate_trip_type( |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2568 | &chip->sensor[i], |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2569 | ADC_TM_TRIP_LOW_COOL, |
| 2570 | THERMAL_TRIP_ACTIVATION_DISABLED); |
| 2571 | if (rc < 0) { |
| 2572 | pr_err("notify error:%d\n", i); |
| 2573 | return IRQ_HANDLED; |
| 2574 | } |
| 2575 | } |
| 2576 | *sensor_high_notify_num |= (status_high & 0x1); |
| 2577 | chip->sensor[i].high_thr_triggered = true; |
| 2578 | } |
| 2579 | } |
| 2580 | |
| 2581 | return rc; |
| 2582 | } |
| 2583 | |
| 2584 | static irqreturn_t qpnp_adc_tm_rc_thr_isr(int irq, void *data) |
| 2585 | { |
| 2586 | struct qpnp_adc_tm_chip *chip = data; |
| 2587 | u8 status_low = 0, status_high = 0; |
| 2588 | int rc = 0, sensor_low_notify_num = 0, i = 0; |
| 2589 | int sensor_high_notify_num = 0; |
| 2590 | |
| 2591 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_STATUS_LOW, |
| 2592 | &status_low, 1); |
| 2593 | if (rc) { |
| 2594 | pr_err("adc-tm-tm read status low failed with %d\n", rc); |
| 2595 | return IRQ_HANDLED; |
| 2596 | } |
| 2597 | |
| 2598 | if (status_low) |
| 2599 | chip->th_info.adc_tm_low_enable = status_low; |
| 2600 | |
| 2601 | rc = qpnp_adc_tm_read_reg(chip, QPNP_ADC_TM_STATUS_HIGH, |
| 2602 | &status_high, 1); |
| 2603 | if (rc) { |
| 2604 | pr_err("adc-tm-tm read status high failed with %d\n", rc); |
| 2605 | return IRQ_HANDLED; |
| 2606 | } |
| 2607 | |
| 2608 | if (status_high) |
| 2609 | chip->th_info.adc_tm_high_enable = status_high; |
| 2610 | |
| 2611 | while (i < chip->max_channels_available) { |
| 2612 | rc = qpnp_adc_tm_rc_check_sensor_trip(chip, |
| 2613 | status_low, status_high, i, |
| 2614 | &sensor_low_notify_num, |
| 2615 | &sensor_high_notify_num); |
| 2616 | if (rc) { |
| 2617 | pr_err("Sensor trip read failed\n"); |
| 2618 | return IRQ_HANDLED; |
| 2619 | } |
| 2620 | status_low >>= 1; |
| 2621 | status_high >>= 1; |
| 2622 | i++; |
| 2623 | } |
| 2624 | |
| 2625 | if (sensor_low_notify_num) { |
Siddartha Mohanadoss | 336fff4 | 2017-12-11 16:51:00 -0800 | [diff] [blame] | 2626 | if (queue_work(chip->low_thr_wq, &chip->trigger_low_thr_work)) |
| 2627 | atomic_inc(&chip->wq_cnt); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2628 | } |
| 2629 | |
| 2630 | if (sensor_high_notify_num) { |
Siddartha Mohanadoss | 336fff4 | 2017-12-11 16:51:00 -0800 | [diff] [blame] | 2631 | if (queue_work(chip->high_thr_wq, |
| 2632 | &chip->trigger_high_thr_work)) |
| 2633 | atomic_inc(&chip->wq_cnt); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2634 | } |
| 2635 | |
| 2636 | return IRQ_HANDLED; |
| 2637 | } |
| 2638 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2639 | static int qpnp_adc_read_temp(void *data, int *temp) |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2640 | { |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2641 | struct qpnp_adc_tm_sensor *adc_tm_sensor = data; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2642 | struct qpnp_adc_tm_chip *chip = adc_tm_sensor->chip; |
| 2643 | struct qpnp_vadc_result result; |
| 2644 | int rc = 0; |
| 2645 | |
| 2646 | rc = qpnp_vadc_read(chip->vadc_dev, |
| 2647 | adc_tm_sensor->vadc_channel_num, &result); |
| 2648 | if (rc) |
| 2649 | return rc; |
| 2650 | |
| 2651 | *temp = result.physical; |
| 2652 | |
| 2653 | return rc; |
| 2654 | } |
| 2655 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2656 | static struct thermal_zone_of_device_ops qpnp_adc_tm_thermal_ops = { |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2657 | .get_temp = qpnp_adc_read_temp, |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2658 | .set_trips = qpnp_adc_tm_set_trip_temp, |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2659 | }; |
| 2660 | |
| 2661 | int32_t qpnp_adc_tm_channel_measure(struct qpnp_adc_tm_chip *chip, |
| 2662 | struct qpnp_adc_tm_btm_param *param) |
| 2663 | { |
| 2664 | uint32_t channel, amux_prescaling, dt_index = 0, scale_type = 0; |
| 2665 | int rc = 0, i = 0, version = 0; |
| 2666 | bool chan_found = false; |
| 2667 | |
| 2668 | if (qpnp_adc_tm_is_valid(chip)) { |
| 2669 | pr_err("chip not valid\n"); |
| 2670 | return -ENODEV; |
| 2671 | } |
| 2672 | |
| 2673 | if (param->threshold_notification == NULL) { |
| 2674 | pr_debug("No notification for high/low temp??\n"); |
| 2675 | return -EINVAL; |
| 2676 | } |
| 2677 | |
| 2678 | mutex_lock(&chip->adc->adc_lock); |
| 2679 | |
| 2680 | channel = param->channel; |
| 2681 | |
| 2682 | if (channel == VSYS) { |
| 2683 | version = qpnp_adc_get_revid_version(chip->dev); |
| 2684 | if (version == QPNP_REV_ID_PM8950_1_0) { |
| 2685 | pr_debug("Channel not supported\n"); |
| 2686 | rc = -EINVAL; |
| 2687 | goto fail_unlock; |
| 2688 | } |
| 2689 | } |
| 2690 | |
| 2691 | while (i < chip->max_channels_available) { |
| 2692 | if (chip->adc->adc_channels[i].channel_num == |
| 2693 | channel) { |
| 2694 | dt_index = i; |
| 2695 | chan_found = true; |
| 2696 | i++; |
| 2697 | } else |
| 2698 | i++; |
| 2699 | } |
| 2700 | |
| 2701 | if (!chan_found) { |
| 2702 | pr_err("not a valid ADC_TM channel\n"); |
| 2703 | rc = -EINVAL; |
| 2704 | goto fail_unlock; |
| 2705 | } |
| 2706 | |
| 2707 | rc = qpnp_adc_tm_check_revision(chip, |
| 2708 | chip->sensor[dt_index].btm_channel_num); |
| 2709 | if (rc < 0) |
| 2710 | goto fail_unlock; |
| 2711 | |
| 2712 | scale_type = chip->adc->adc_channels[dt_index].adc_scale_fn; |
| 2713 | if (scale_type >= SCALE_RSCALE_NONE) { |
| 2714 | rc = -EBADF; |
| 2715 | goto fail_unlock; |
| 2716 | } |
| 2717 | |
| 2718 | |
| 2719 | amux_prescaling = |
| 2720 | chip->adc->adc_channels[dt_index].chan_path_prescaling; |
| 2721 | |
| 2722 | if (amux_prescaling >= PATH_SCALING_NONE) { |
| 2723 | rc = -EINVAL; |
| 2724 | goto fail_unlock; |
| 2725 | } |
| 2726 | |
| 2727 | pr_debug("channel:%d, scale_type:%d, dt_idx:%d", |
| 2728 | channel, scale_type, dt_index); |
| 2729 | param->gain_num = qpnp_vadc_amux_scaling_ratio[amux_prescaling].num; |
| 2730 | param->gain_den = qpnp_vadc_amux_scaling_ratio[amux_prescaling].den; |
| 2731 | param->adc_tm_hc = chip->adc_tm_hc; |
Siddartha Mohanadoss | d9e74fe | 2017-10-13 15:27:55 -0700 | [diff] [blame] | 2732 | param->full_scale_code = chip->adc->adc_prop->full_scale_code; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2733 | chip->adc->amux_prop->amux_channel = channel; |
| 2734 | chip->adc->amux_prop->decimation = |
| 2735 | chip->adc->adc_channels[dt_index].adc_decimation; |
| 2736 | chip->adc->amux_prop->hw_settle_time = |
| 2737 | chip->adc->adc_channels[dt_index].hw_settle_time; |
| 2738 | chip->adc->amux_prop->fast_avg_setup = |
| 2739 | chip->adc->adc_channels[dt_index].fast_avg_setup; |
| 2740 | chip->adc->amux_prop->mode_sel = |
| 2741 | ADC_OP_MEASUREMENT_INTERVAL << QPNP_OP_MODE_SHIFT; |
| 2742 | adc_tm_rscale_fn[scale_type].chan(chip->vadc_dev, param, |
| 2743 | &chip->adc->amux_prop->chan_prop->low_thr, |
| 2744 | &chip->adc->amux_prop->chan_prop->high_thr); |
| 2745 | qpnp_adc_tm_add_to_list(chip, dt_index, param, |
| 2746 | chip->adc->amux_prop->chan_prop); |
| 2747 | chip->adc->amux_prop->chan_prop->tm_channel_select = |
| 2748 | chip->sensor[dt_index].btm_channel_num; |
| 2749 | chip->adc->amux_prop->chan_prop->state_request = |
| 2750 | param->state_request; |
| 2751 | chip->adc->amux_prop->calib_type = |
| 2752 | chip->adc->adc_channels[dt_index].calib_type; |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2753 | if (!chip->adc_tm_hc) { |
| 2754 | rc = qpnp_adc_tm_configure(chip, chip->adc->amux_prop); |
| 2755 | if (rc) { |
| 2756 | pr_err("adc-tm configure failed with %d\n", rc); |
| 2757 | goto fail_unlock; |
| 2758 | } |
| 2759 | } else { |
| 2760 | rc = qpnp_adc_tm_hc_configure(chip, chip->adc->amux_prop); |
| 2761 | if (rc) { |
| 2762 | pr_err("adc-tm hc configure failed with %d\n", rc); |
| 2763 | goto fail_unlock; |
| 2764 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2765 | } |
| 2766 | |
| 2767 | chip->sensor[dt_index].scale_type = scale_type; |
| 2768 | |
| 2769 | fail_unlock: |
| 2770 | mutex_unlock(&chip->adc->adc_lock); |
| 2771 | |
| 2772 | return rc; |
| 2773 | } |
| 2774 | EXPORT_SYMBOL(qpnp_adc_tm_channel_measure); |
| 2775 | |
| 2776 | int32_t qpnp_adc_tm_disable_chan_meas(struct qpnp_adc_tm_chip *chip, |
| 2777 | struct qpnp_adc_tm_btm_param *param) |
| 2778 | { |
| 2779 | uint32_t channel, dt_index = 0, btm_chan_num; |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2780 | u8 sensor_mask = 0, mode_ctl = 0; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2781 | int rc = 0; |
| 2782 | |
| 2783 | if (qpnp_adc_tm_is_valid(chip)) |
| 2784 | return -ENODEV; |
| 2785 | |
| 2786 | mutex_lock(&chip->adc->adc_lock); |
| 2787 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2788 | if (!chip->adc_tm_hc) { |
| 2789 | /* Set measurement in single measurement mode */ |
| 2790 | mode_ctl = ADC_OP_NORMAL_MODE << QPNP_OP_MODE_SHIFT; |
| 2791 | rc = qpnp_adc_tm_mode_select(chip, mode_ctl); |
| 2792 | if (rc < 0) { |
| 2793 | pr_err("adc-tm single mode select failed\n"); |
| 2794 | goto fail; |
| 2795 | } |
| 2796 | } |
| 2797 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2798 | /* Disable bank */ |
| 2799 | rc = qpnp_adc_tm_disable(chip); |
| 2800 | if (rc < 0) { |
| 2801 | pr_err("adc-tm disable failed\n"); |
| 2802 | goto fail; |
| 2803 | } |
| 2804 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2805 | if (!chip->adc_tm_hc) { |
| 2806 | /* Check if a conversion is in progress */ |
| 2807 | rc = qpnp_adc_tm_req_sts_check(chip); |
| 2808 | if (rc < 0) { |
| 2809 | pr_err("adc-tm req_sts check failed\n"); |
| 2810 | goto fail; |
| 2811 | } |
| 2812 | } |
| 2813 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2814 | channel = param->channel; |
| 2815 | while ((chip->adc->adc_channels[dt_index].channel_num |
| 2816 | != channel) && (dt_index < chip->max_channels_available)) |
| 2817 | dt_index++; |
| 2818 | |
| 2819 | if (dt_index >= chip->max_channels_available) { |
| 2820 | pr_err("not a valid ADC_TMN channel\n"); |
| 2821 | rc = -EINVAL; |
| 2822 | goto fail; |
| 2823 | } |
| 2824 | |
| 2825 | btm_chan_num = chip->sensor[dt_index].btm_channel_num; |
| 2826 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2827 | if (!chip->adc_tm_hc) { |
| 2828 | sensor_mask = 1 << chip->sensor[dt_index].sensor_num; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2829 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2830 | rc = qpnp_adc_tm_reg_update(chip, QPNP_ADC_TM_LOW_THR_INT_EN, |
| 2831 | sensor_mask, false); |
| 2832 | if (rc < 0) { |
| 2833 | pr_err("high threshold int enable failed\n"); |
| 2834 | goto fail; |
| 2835 | } |
| 2836 | |
| 2837 | rc = qpnp_adc_tm_reg_update(chip, QPNP_ADC_TM_MULTI_MEAS_EN, |
| 2838 | sensor_mask, false); |
| 2839 | if (rc < 0) { |
| 2840 | pr_err("multi measurement en failed\n"); |
| 2841 | goto fail; |
| 2842 | } |
| 2843 | } else { |
| 2844 | rc = qpnp_adc_tm_reg_update(chip, QPNP_BTM_Mn_EN(btm_chan_num), |
| 2845 | QPNP_BTM_Mn_HIGH_THR_INT_EN, false); |
| 2846 | if (rc < 0) { |
| 2847 | pr_err("high thr disable err:%d\n", btm_chan_num); |
| 2848 | return rc; |
| 2849 | } |
| 2850 | |
| 2851 | rc = qpnp_adc_tm_reg_update(chip, QPNP_BTM_Mn_EN(btm_chan_num), |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2852 | QPNP_BTM_Mn_LOW_THR_INT_EN, false); |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2853 | if (rc < 0) { |
| 2854 | pr_err("low thr disable err:%d\n", btm_chan_num); |
| 2855 | return rc; |
| 2856 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2857 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2858 | rc = qpnp_adc_tm_reg_update(chip, QPNP_BTM_Mn_EN(btm_chan_num), |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 2859 | QPNP_BTM_Mn_MEAS_EN, false); |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2860 | if (rc < 0) { |
| 2861 | pr_err("multi measurement disable failed\n"); |
| 2862 | return rc; |
| 2863 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2864 | } |
| 2865 | |
| 2866 | rc = qpnp_adc_tm_enable_if_channel_meas(chip); |
| 2867 | if (rc < 0) |
| 2868 | pr_err("re-enabling measurement failed\n"); |
| 2869 | |
| 2870 | fail: |
| 2871 | mutex_unlock(&chip->adc->adc_lock); |
| 2872 | |
| 2873 | return rc; |
| 2874 | } |
| 2875 | EXPORT_SYMBOL(qpnp_adc_tm_disable_chan_meas); |
| 2876 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2877 | struct qpnp_adc_tm_chip *qpnp_get_adc_tm(struct device *dev, const char *name) |
| 2878 | { |
| 2879 | struct qpnp_adc_tm_chip *chip; |
| 2880 | struct device_node *node = NULL; |
| 2881 | char prop_name[QPNP_MAX_PROP_NAME_LEN]; |
| 2882 | |
| 2883 | snprintf(prop_name, QPNP_MAX_PROP_NAME_LEN, "qcom,%s-adc_tm", name); |
| 2884 | |
| 2885 | node = of_parse_phandle(dev->of_node, prop_name, 0); |
| 2886 | if (node == NULL) |
| 2887 | return ERR_PTR(-ENODEV); |
| 2888 | |
| 2889 | list_for_each_entry(chip, &qpnp_adc_tm_device_list, list) |
| 2890 | if (chip->adc->pdev->dev.of_node == node) |
| 2891 | return chip; |
| 2892 | |
| 2893 | return ERR_PTR(-EPROBE_DEFER); |
| 2894 | } |
| 2895 | EXPORT_SYMBOL(qpnp_get_adc_tm); |
| 2896 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2897 | static int qpnp_adc_tm_initial_setup(struct qpnp_adc_tm_chip *chip) |
| 2898 | { |
| 2899 | u8 thr_init = 0; |
| 2900 | int rc = 0; |
| 2901 | |
| 2902 | rc = qpnp_adc_tm_write_reg(chip, QPNP_ADC_TM_HIGH_THR_INT_EN, |
| 2903 | thr_init, 1); |
| 2904 | if (rc < 0) { |
| 2905 | pr_err("high thr init failed\n"); |
| 2906 | return rc; |
| 2907 | } |
| 2908 | |
| 2909 | rc = qpnp_adc_tm_write_reg(chip, QPNP_ADC_TM_LOW_THR_INT_EN, |
| 2910 | thr_init, 1); |
| 2911 | if (rc < 0) { |
| 2912 | pr_err("low thr init failed\n"); |
| 2913 | return rc; |
| 2914 | } |
| 2915 | |
| 2916 | rc = qpnp_adc_tm_write_reg(chip, QPNP_ADC_TM_MULTI_MEAS_EN, |
| 2917 | thr_init, 1); |
| 2918 | if (rc < 0) { |
| 2919 | pr_err("multi meas en failed\n"); |
| 2920 | return rc; |
| 2921 | } |
| 2922 | |
| 2923 | return rc; |
| 2924 | } |
| 2925 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2926 | static const struct of_device_id qpnp_adc_tm_match_table[] = { |
| 2927 | { .compatible = "qcom,qpnp-adc-tm" }, |
| 2928 | { .compatible = "qcom,qpnp-adc-tm-hc" }, |
| 2929 | {} |
| 2930 | }; |
| 2931 | |
| 2932 | static int qpnp_adc_tm_probe(struct platform_device *pdev) |
| 2933 | { |
| 2934 | struct device_node *node = pdev->dev.of_node, *child; |
| 2935 | struct qpnp_adc_tm_chip *chip; |
| 2936 | struct qpnp_adc_drv *adc_qpnp; |
| 2937 | int32_t count_adc_channel_list = 0, rc, sen_idx = 0, i = 0; |
| 2938 | bool thermal_node = false; |
| 2939 | const struct of_device_id *id; |
| 2940 | |
| 2941 | for_each_child_of_node(node, child) |
| 2942 | count_adc_channel_list++; |
| 2943 | |
| 2944 | if (!count_adc_channel_list) { |
| 2945 | pr_err("No channel listing\n"); |
| 2946 | return -EINVAL; |
| 2947 | } |
| 2948 | |
| 2949 | id = of_match_node(qpnp_adc_tm_match_table, node); |
| 2950 | if (id == NULL) { |
| 2951 | pr_err("qpnp_adc_tm_match of_node prop not present\n"); |
| 2952 | return -ENODEV; |
| 2953 | } |
| 2954 | |
| 2955 | chip = devm_kzalloc(&pdev->dev, sizeof(struct qpnp_adc_tm_chip) + |
| 2956 | (count_adc_channel_list * |
| 2957 | sizeof(struct qpnp_adc_tm_sensor)), |
| 2958 | GFP_KERNEL); |
| 2959 | if (!chip) |
| 2960 | return -ENOMEM; |
| 2961 | |
| 2962 | adc_qpnp = devm_kzalloc(&pdev->dev, sizeof(struct qpnp_adc_drv), |
| 2963 | GFP_KERNEL); |
| 2964 | if (!adc_qpnp) { |
| 2965 | rc = -ENOMEM; |
| 2966 | goto fail; |
| 2967 | } |
| 2968 | |
| 2969 | chip->dev = &(pdev->dev); |
| 2970 | chip->adc = adc_qpnp; |
| 2971 | chip->adc->regmap = dev_get_regmap(pdev->dev.parent, NULL); |
| 2972 | if (!chip->adc->regmap) { |
| 2973 | dev_err(&pdev->dev, "Couldn't get parent's regmap\n"); |
| 2974 | rc = -EINVAL; |
| 2975 | goto fail; |
| 2976 | } |
| 2977 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2978 | if (of_device_is_compatible(node, "qcom,qpnp-adc-tm-hc")) { |
| 2979 | chip->adc_tm_hc = true; |
| 2980 | chip->adc->adc_hc = true; |
| 2981 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 2982 | |
| 2983 | rc = qpnp_adc_get_devicetree_data(pdev, chip->adc); |
| 2984 | if (rc) { |
| 2985 | dev_err(&pdev->dev, "failed to read device tree\n"); |
| 2986 | goto fail; |
| 2987 | } |
| 2988 | mutex_init(&chip->adc->adc_lock); |
| 2989 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 2990 | /* Register the ADC peripheral interrupt */ |
| 2991 | if (!chip->adc_tm_hc) { |
| 2992 | chip->adc->adc_high_thr_irq = platform_get_irq_byname(pdev, |
| 2993 | "high-thr-en-set"); |
| 2994 | if (chip->adc->adc_high_thr_irq < 0) { |
| 2995 | pr_err("Invalid irq\n"); |
| 2996 | rc = -ENXIO; |
| 2997 | goto fail; |
| 2998 | } |
| 2999 | |
| 3000 | chip->adc->adc_low_thr_irq = platform_get_irq_byname(pdev, |
| 3001 | "low-thr-en-set"); |
| 3002 | if (chip->adc->adc_low_thr_irq < 0) { |
| 3003 | pr_err("Invalid irq\n"); |
| 3004 | rc = -ENXIO; |
| 3005 | goto fail; |
| 3006 | } |
| 3007 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 3008 | chip->vadc_dev = qpnp_get_vadc(&pdev->dev, "adc_tm"); |
| 3009 | if (IS_ERR(chip->vadc_dev)) { |
| 3010 | rc = PTR_ERR(chip->vadc_dev); |
| 3011 | if (rc != -EPROBE_DEFER) |
| 3012 | pr_err("vadc property missing, rc=%d\n", rc); |
| 3013 | goto fail; |
| 3014 | } |
| 3015 | |
| 3016 | chip->adc_tm_recalib_check = of_property_read_bool(node, |
| 3017 | "qcom,adc-tm-recalib-check"); |
| 3018 | |
| 3019 | for_each_child_of_node(node, child) { |
| 3020 | char name[25]; |
| 3021 | int btm_channel_num, timer_select = 0; |
| 3022 | |
| 3023 | rc = of_property_read_u32(child, |
| 3024 | "qcom,btm-channel-number", &btm_channel_num); |
| 3025 | if (rc) { |
| 3026 | pr_err("Invalid btm channel number\n"); |
| 3027 | goto fail; |
| 3028 | } |
| 3029 | rc = of_property_read_u32(child, |
| 3030 | "qcom,meas-interval-timer-idx", &timer_select); |
| 3031 | if (rc) { |
| 3032 | pr_debug("Default to timer2 with interval of 1 sec\n"); |
| 3033 | chip->sensor[sen_idx].timer_select = |
| 3034 | ADC_MEAS_TIMER_SELECT2; |
| 3035 | chip->sensor[sen_idx].meas_interval = |
| 3036 | ADC_MEAS2_INTERVAL_1S; |
| 3037 | } else { |
| 3038 | if (timer_select >= ADC_MEAS_TIMER_NUM) { |
| 3039 | pr_err("Invalid timer selection number\n"); |
| 3040 | goto fail; |
| 3041 | } |
| 3042 | chip->sensor[sen_idx].timer_select = timer_select; |
| 3043 | if (timer_select == ADC_MEAS_TIMER_SELECT1) |
| 3044 | chip->sensor[sen_idx].meas_interval = |
| 3045 | ADC_MEAS1_INTERVAL_3P9MS; |
| 3046 | else if (timer_select == ADC_MEAS_TIMER_SELECT3) |
| 3047 | chip->sensor[sen_idx].meas_interval = |
| 3048 | ADC_MEAS3_INTERVAL_4S; |
| 3049 | else if (timer_select == ADC_MEAS_TIMER_SELECT2) |
| 3050 | chip->sensor[sen_idx].meas_interval = |
| 3051 | ADC_MEAS2_INTERVAL_1S; |
| 3052 | } |
| 3053 | |
| 3054 | chip->sensor[sen_idx].btm_channel_num = btm_channel_num; |
| 3055 | chip->sensor[sen_idx].vadc_channel_num = |
| 3056 | chip->adc->adc_channels[sen_idx].channel_num; |
| 3057 | chip->sensor[sen_idx].sensor_num = sen_idx; |
| 3058 | chip->sensor[sen_idx].chip = chip; |
| 3059 | pr_debug("btm_chan:%x, vadc_chan:%x\n", btm_channel_num, |
| 3060 | chip->adc->adc_channels[sen_idx].channel_num); |
| 3061 | thermal_node = of_property_read_bool(child, |
| 3062 | "qcom,thermal-node"); |
| 3063 | if (thermal_node) { |
| 3064 | /* Register with the thermal zone */ |
| 3065 | pr_debug("thermal node%x\n", btm_channel_num); |
| 3066 | chip->sensor[sen_idx].mode = THERMAL_DEVICE_DISABLED; |
| 3067 | chip->sensor[sen_idx].thermal_node = true; |
| 3068 | snprintf(name, sizeof(name), "%s", |
| 3069 | chip->adc->adc_channels[sen_idx].name); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 3070 | chip->sensor[sen_idx].low_thr = |
| 3071 | QPNP_ADC_TM_M0_LOW_THR; |
| 3072 | chip->sensor[sen_idx].high_thr = |
| 3073 | QPNP_ADC_TM_M0_HIGH_THR; |
| 3074 | chip->sensor[sen_idx].tz_dev = |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 3075 | devm_thermal_zone_of_sensor_register( |
| 3076 | chip->dev, |
| 3077 | chip->sensor[sen_idx].vadc_channel_num, |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 3078 | &chip->sensor[sen_idx], |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 3079 | &qpnp_adc_tm_thermal_ops); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 3080 | if (IS_ERR(chip->sensor[sen_idx].tz_dev)) |
| 3081 | pr_err("thermal device register failed.\n"); |
| 3082 | } |
| 3083 | chip->sensor[sen_idx].req_wq = alloc_workqueue( |
| 3084 | "qpnp_adc_notify_wq", WQ_HIGHPRI, 0); |
| 3085 | if (!chip->sensor[sen_idx].req_wq) { |
| 3086 | pr_err("Requesting priority wq failed\n"); |
| 3087 | goto fail; |
| 3088 | } |
| 3089 | INIT_WORK(&chip->sensor[sen_idx].work, notify_adc_tm_fn); |
| 3090 | INIT_LIST_HEAD(&chip->sensor[sen_idx].thr_list); |
| 3091 | sen_idx++; |
| 3092 | } |
| 3093 | chip->max_channels_available = count_adc_channel_list; |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 3094 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 3095 | chip->high_thr_wq = alloc_workqueue("qpnp_adc_tm_high_thr_wq", |
| 3096 | WQ_HIGHPRI, 0); |
| 3097 | if (!chip->high_thr_wq) { |
| 3098 | pr_err("Requesting high thr priority wq failed\n"); |
| 3099 | goto fail; |
| 3100 | } |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 3101 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 3102 | chip->low_thr_wq = alloc_workqueue("qpnp_adc_tm_low_thr_wq", |
| 3103 | WQ_HIGHPRI, 0); |
| 3104 | if (!chip->low_thr_wq) { |
| 3105 | pr_err("Requesting low thr priority wq failed\n"); |
| 3106 | goto fail; |
| 3107 | } |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 3108 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 3109 | chip->thr_wq = alloc_workqueue("qpnp_adc_tm_thr_wq", |
| 3110 | WQ_HIGHPRI, 0); |
| 3111 | if (!chip->thr_wq) { |
| 3112 | pr_err("Requesting thr priority wq failed\n"); |
| 3113 | goto fail; |
| 3114 | } |
| 3115 | |
| 3116 | INIT_WORK(&chip->trigger_high_thr_work, qpnp_adc_tm_high_thr_work); |
| 3117 | INIT_WORK(&chip->trigger_low_thr_work, qpnp_adc_tm_low_thr_work); |
| 3118 | atomic_set(&chip->wq_cnt, 0); |
| 3119 | |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 3120 | if (!chip->adc_tm_hc) { |
| 3121 | rc = qpnp_adc_tm_initial_setup(chip); |
| 3122 | if (rc) |
| 3123 | goto fail; |
| 3124 | rc = devm_request_irq(&pdev->dev, chip->adc->adc_high_thr_irq, |
| 3125 | qpnp_adc_tm_high_thr_isr, |
| 3126 | IRQF_TRIGGER_RISING, "qpnp_adc_tm_high_interrupt", chip); |
| 3127 | if (rc) { |
| 3128 | dev_err(&pdev->dev, "failed to request adc irq\n"); |
| 3129 | goto fail; |
| 3130 | } else { |
| 3131 | enable_irq_wake(chip->adc->adc_high_thr_irq); |
| 3132 | } |
| 3133 | |
| 3134 | rc = devm_request_irq(&pdev->dev, chip->adc->adc_low_thr_irq, |
| 3135 | qpnp_adc_tm_low_thr_isr, |
| 3136 | IRQF_TRIGGER_RISING, |
| 3137 | "qpnp_adc_tm_low_interrupt", chip); |
| 3138 | if (rc) { |
| 3139 | dev_err(&pdev->dev, "failed to request adc irq\n"); |
| 3140 | goto fail; |
| 3141 | } else { |
| 3142 | enable_irq_wake(chip->adc->adc_low_thr_irq); |
| 3143 | } |
| 3144 | } else { |
| 3145 | rc = devm_request_irq(&pdev->dev, chip->adc->adc_irq_eoc, |
| 3146 | qpnp_adc_tm_rc_thr_isr, |
| 3147 | IRQF_TRIGGER_HIGH, "qpnp_adc_tm_interrupt", chip); |
| 3148 | if (rc) |
| 3149 | dev_err(&pdev->dev, "failed to request adc irq\n"); |
| 3150 | else |
| 3151 | enable_irq_wake(chip->adc->adc_irq_eoc); |
| 3152 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 3153 | |
| 3154 | chip->adc_vote_enable = false; |
| 3155 | dev_set_drvdata(&pdev->dev, chip); |
| 3156 | list_add(&chip->list, &qpnp_adc_tm_device_list); |
Prasad Malisetty | 358dda3 | 2018-02-20 06:14:26 +0530 | [diff] [blame^] | 3157 | spin_lock_init(&chip->th_info.adc_tm_low_lock); |
| 3158 | spin_lock_init(&chip->th_info.adc_tm_high_lock); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 3159 | |
| 3160 | pr_debug("OK\n"); |
| 3161 | return 0; |
| 3162 | fail: |
| 3163 | for_each_child_of_node(node, child) { |
| 3164 | thermal_node = of_property_read_bool(child, |
| 3165 | "qcom,thermal-node"); |
| 3166 | if (thermal_node) { |
| 3167 | thermal_zone_device_unregister(chip->sensor[i].tz_dev); |
| 3168 | if (chip->sensor[i].req_wq) |
| 3169 | destroy_workqueue(chip->sensor[sen_idx].req_wq); |
| 3170 | } |
| 3171 | } |
| 3172 | if (chip->high_thr_wq) |
| 3173 | destroy_workqueue(chip->high_thr_wq); |
| 3174 | if (chip->low_thr_wq) |
| 3175 | destroy_workqueue(chip->low_thr_wq); |
| 3176 | dev_set_drvdata(&pdev->dev, NULL); |
| 3177 | return rc; |
| 3178 | } |
| 3179 | |
| 3180 | static int qpnp_adc_tm_remove(struct platform_device *pdev) |
| 3181 | { |
| 3182 | struct qpnp_adc_tm_chip *chip = dev_get_drvdata(&pdev->dev); |
| 3183 | struct device_node *node = pdev->dev.of_node, *child; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 3184 | int i = 0; |
| 3185 | |
| 3186 | for_each_child_of_node(node, child) { |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 3187 | if (chip->sensor[i].req_wq) |
| 3188 | destroy_workqueue(chip->sensor[i].req_wq); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 3189 | i++; |
| 3190 | } |
| 3191 | |
| 3192 | if (chip->high_thr_wq) |
| 3193 | destroy_workqueue(chip->high_thr_wq); |
| 3194 | if (chip->low_thr_wq) |
| 3195 | destroy_workqueue(chip->low_thr_wq); |
| 3196 | if (chip->adc->hkadc_ldo && chip->adc->hkadc_ldo_ok) |
| 3197 | qpnp_adc_free_voltage_resource(chip->adc); |
| 3198 | dev_set_drvdata(&pdev->dev, NULL); |
| 3199 | |
| 3200 | return 0; |
| 3201 | } |
| 3202 | |
| 3203 | static void qpnp_adc_tm_shutdown(struct platform_device *pdev) |
| 3204 | { |
| 3205 | struct qpnp_adc_tm_chip *chip = dev_get_drvdata(&pdev->dev); |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 3206 | int rc = 0, i = 0; |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 3207 | |
| 3208 | /* Disable bank */ |
| 3209 | rc = qpnp_adc_tm_disable(chip); |
| 3210 | if (rc < 0) |
| 3211 | pr_err("adc-tm disable failed\n"); |
| 3212 | |
Siddartha Mohanadoss | 697fe0d | 2017-04-26 17:10:11 -0700 | [diff] [blame] | 3213 | for (i = 0; i < QPNP_BTM_CHANNELS; i++) { |
| 3214 | rc = qpnp_adc_tm_reg_update(chip, |
| 3215 | QPNP_BTM_Mn_EN(i), |
| 3216 | QPNP_BTM_Mn_MEAS_EN, false); |
| 3217 | if (rc < 0) |
| 3218 | pr_err("multi measurement disable failed\n"); |
| 3219 | } |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 3220 | } |
| 3221 | |
| 3222 | static int qpnp_adc_tm_suspend_noirq(struct device *dev) |
| 3223 | { |
| 3224 | struct qpnp_adc_tm_chip *chip = dev_get_drvdata(dev); |
| 3225 | |
| 3226 | if (atomic_read(&chip->wq_cnt) != 0) { |
| 3227 | pr_err( |
| 3228 | "Aborting suspend, adc_tm notification running while suspending\n"); |
| 3229 | return -EBUSY; |
| 3230 | } |
| 3231 | return 0; |
| 3232 | } |
| 3233 | |
| 3234 | static const struct dev_pm_ops qpnp_adc_tm_pm_ops = { |
| 3235 | .suspend_noirq = qpnp_adc_tm_suspend_noirq, |
| 3236 | }; |
| 3237 | |
| 3238 | static struct platform_driver qpnp_adc_tm_driver = { |
| 3239 | .driver = { |
| 3240 | .name = "qcom,qpnp-adc-tm", |
| 3241 | .of_match_table = qpnp_adc_tm_match_table, |
| 3242 | .pm = &qpnp_adc_tm_pm_ops, |
| 3243 | }, |
| 3244 | .probe = qpnp_adc_tm_probe, |
| 3245 | .remove = qpnp_adc_tm_remove, |
| 3246 | .shutdown = qpnp_adc_tm_shutdown, |
| 3247 | }; |
| 3248 | |
| 3249 | static int __init qpnp_adc_tm_init(void) |
| 3250 | { |
| 3251 | return platform_driver_register(&qpnp_adc_tm_driver); |
| 3252 | } |
| 3253 | module_init(qpnp_adc_tm_init); |
| 3254 | |
| 3255 | static void __exit qpnp_adc_tm_exit(void) |
| 3256 | { |
| 3257 | platform_driver_unregister(&qpnp_adc_tm_driver); |
| 3258 | } |
| 3259 | module_exit(qpnp_adc_tm_exit); |
| 3260 | |
| 3261 | MODULE_DESCRIPTION("QPNP PMIC ADC Threshold Monitoring driver"); |
| 3262 | MODULE_LICENSE("GPL v2"); |