Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1 | /* |
Caesar Wang | 678065d | 2016-04-18 11:35:58 +0800 | [diff] [blame] | 2 | * Copyright (c) 2014-2016, Fuzhou Rockchip Electronics Co., Ltd |
Caesar Wang | 20f0af7 | 2015-11-09 12:48:59 +0800 | [diff] [blame] | 3 | * Caesar Wang <wxt@rock-chips.com> |
| 4 | * |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms and conditions of the GNU General Public License, |
| 7 | * version 2, as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | */ |
| 14 | |
| 15 | #include <linux/clk.h> |
| 16 | #include <linux/delay.h> |
| 17 | #include <linux/interrupt.h> |
| 18 | #include <linux/io.h> |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/of.h> |
| 21 | #include <linux/of_address.h> |
| 22 | #include <linux/of_irq.h> |
| 23 | #include <linux/platform_device.h> |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 24 | #include <linux/regmap.h> |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 25 | #include <linux/reset.h> |
| 26 | #include <linux/thermal.h> |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 27 | #include <linux/mfd/syscon.h> |
Caesar Wang | c970872 | 2015-11-11 19:43:11 -0800 | [diff] [blame] | 28 | #include <linux/pinctrl/consumer.h> |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 29 | |
| 30 | /** |
| 31 | * If the temperature over a period of time High, |
| 32 | * the resulting TSHUT gave CRU module,let it reset the entire chip, |
| 33 | * or via GPIO give PMIC. |
| 34 | */ |
| 35 | enum tshut_mode { |
| 36 | TSHUT_MODE_CRU = 0, |
| 37 | TSHUT_MODE_GPIO, |
| 38 | }; |
| 39 | |
| 40 | /** |
Caesar Wang | 13c1cfd | 2015-12-03 16:48:39 +0800 | [diff] [blame] | 41 | * The system Temperature Sensors tshut(tshut) polarity |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 42 | * the bit 8 is tshut polarity. |
| 43 | * 0: low active, 1: high active |
| 44 | */ |
| 45 | enum tshut_polarity { |
| 46 | TSHUT_LOW_ACTIVE = 0, |
| 47 | TSHUT_HIGH_ACTIVE, |
| 48 | }; |
| 49 | |
| 50 | /** |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 51 | * The system has two Temperature Sensors. |
| 52 | * sensor0 is for CPU, and sensor1 is for GPU. |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 53 | */ |
| 54 | enum sensor_id { |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 55 | SENSOR_CPU = 0, |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 56 | SENSOR_GPU, |
| 57 | }; |
| 58 | |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 59 | /** |
Caesar Wang | 13c1cfd | 2015-12-03 16:48:39 +0800 | [diff] [blame] | 60 | * The conversion table has the adc value and temperature. |
Caesar Wang | 952418a | 2016-02-15 15:33:30 +0800 | [diff] [blame] | 61 | * ADC_DECREMENT: the adc value is of diminishing.(e.g. rk3288_code_table) |
| 62 | * ADC_INCREMENT: the adc value is incremental.(e.g. rk3368_code_table) |
Caesar Wang | 13c1cfd | 2015-12-03 16:48:39 +0800 | [diff] [blame] | 63 | */ |
Caesar Wang | 020ba95 | 2015-11-09 12:48:57 +0800 | [diff] [blame] | 64 | enum adc_sort_mode { |
| 65 | ADC_DECREMENT = 0, |
| 66 | ADC_INCREMENT, |
| 67 | }; |
| 68 | |
| 69 | /** |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 70 | * The max sensors is two in rockchip SoCs. |
| 71 | * Two sensors: CPU and GPU sensor. |
| 72 | */ |
| 73 | #define SOC_MAX_SENSORS 2 |
| 74 | |
Caesar Wang | 13c1cfd | 2015-12-03 16:48:39 +0800 | [diff] [blame] | 75 | /** |
Caesar Wang | 678065d | 2016-04-18 11:35:58 +0800 | [diff] [blame] | 76 | * struct chip_tsadc_table - hold information about chip-specific differences |
Caesar Wang | 13c1cfd | 2015-12-03 16:48:39 +0800 | [diff] [blame] | 77 | * @id: conversion table |
| 78 | * @length: size of conversion table |
| 79 | * @data_mask: mask to apply on data inputs |
| 80 | * @mode: sort mode of this adc variant (incrementing or decrementing) |
| 81 | */ |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 82 | struct chip_tsadc_table { |
| 83 | const struct tsadc_table *id; |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 84 | unsigned int length; |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 85 | u32 data_mask; |
Caesar Wang | 020ba95 | 2015-11-09 12:48:57 +0800 | [diff] [blame] | 86 | enum adc_sort_mode mode; |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 87 | }; |
| 88 | |
Caesar Wang | 678065d | 2016-04-18 11:35:58 +0800 | [diff] [blame] | 89 | /** |
| 90 | * struct rockchip_tsadc_chip - hold the private data of tsadc chip |
| 91 | * @chn_id[SOC_MAX_SENSORS]: the sensor id of chip correspond to the channel |
| 92 | * @chn_num: the channel number of tsadc chip |
| 93 | * @tshut_temp: the hardware-controlled shutdown temperature value |
| 94 | * @tshut_mode: the hardware-controlled shutdown mode (0:CRU 1:GPIO) |
| 95 | * @tshut_polarity: the hardware-controlled active polarity (0:LOW 1:HIGH) |
| 96 | * @initialize: SoC special initialize tsadc controller method |
| 97 | * @irq_ack: clear the interrupt |
| 98 | * @get_temp: get the temperature |
Caesar Wang | 1484850 | 2016-06-22 16:42:05 +0800 | [diff] [blame^] | 99 | * @set_alarm_temp: set the high temperature interrupt |
Caesar Wang | 678065d | 2016-04-18 11:35:58 +0800 | [diff] [blame] | 100 | * @set_tshut_temp: set the hardware-controlled shutdown temperature |
| 101 | * @set_tshut_mode: set the hardware-controlled shutdown mode |
| 102 | * @table: the chip-specific conversion table |
| 103 | */ |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 104 | struct rockchip_tsadc_chip { |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 105 | /* The sensor id of chip correspond to the ADC channel */ |
| 106 | int chn_id[SOC_MAX_SENSORS]; |
| 107 | int chn_num; |
| 108 | |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 109 | /* The hardware-controlled tshut property */ |
Caesar Wang | 437df21 | 2015-11-09 12:48:58 +0800 | [diff] [blame] | 110 | int tshut_temp; |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 111 | enum tshut_mode tshut_mode; |
| 112 | enum tshut_polarity tshut_polarity; |
| 113 | |
| 114 | /* Chip-wide methods */ |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 115 | void (*initialize)(struct regmap *grf, |
| 116 | void __iomem *reg, enum tshut_polarity p); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 117 | void (*irq_ack)(void __iomem *reg); |
| 118 | void (*control)(void __iomem *reg, bool on); |
| 119 | |
| 120 | /* Per-sensor methods */ |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 121 | int (*get_temp)(struct chip_tsadc_table table, |
| 122 | int chn, void __iomem *reg, int *temp); |
Caesar Wang | 1484850 | 2016-06-22 16:42:05 +0800 | [diff] [blame^] | 123 | void (*set_alarm_temp)(struct chip_tsadc_table table, |
| 124 | int chn, void __iomem *reg, int temp); |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 125 | void (*set_tshut_temp)(struct chip_tsadc_table table, |
Caesar Wang | 437df21 | 2015-11-09 12:48:58 +0800 | [diff] [blame] | 126 | int chn, void __iomem *reg, int temp); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 127 | void (*set_tshut_mode)(int chn, void __iomem *reg, enum tshut_mode m); |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 128 | |
| 129 | /* Per-table methods */ |
| 130 | struct chip_tsadc_table table; |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 131 | }; |
| 132 | |
Caesar Wang | 678065d | 2016-04-18 11:35:58 +0800 | [diff] [blame] | 133 | /** |
| 134 | * struct rockchip_thermal_sensor - hold the information of thermal sensor |
| 135 | * @thermal: pointer to the platform/configuration data |
| 136 | * @tzd: pointer to a thermal zone |
| 137 | * @id: identifier of the thermal sensor |
| 138 | */ |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 139 | struct rockchip_thermal_sensor { |
| 140 | struct rockchip_thermal_data *thermal; |
| 141 | struct thermal_zone_device *tzd; |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 142 | int id; |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 143 | }; |
| 144 | |
Caesar Wang | 678065d | 2016-04-18 11:35:58 +0800 | [diff] [blame] | 145 | /** |
| 146 | * struct rockchip_thermal_data - hold the private data of thermal driver |
| 147 | * @chip: pointer to the platform/configuration data |
| 148 | * @pdev: platform device of thermal |
| 149 | * @reset: the reset controller of tsadc |
| 150 | * @sensors[SOC_MAX_SENSORS]: the thermal sensor |
| 151 | * @clk: the controller clock is divided by the exteral 24MHz |
| 152 | * @pclk: the advanced peripherals bus clock |
| 153 | * @grf: the general register file will be used to do static set by software |
| 154 | * @regs: the base address of tsadc controller |
| 155 | * @tshut_temp: the hardware-controlled shutdown temperature value |
| 156 | * @tshut_mode: the hardware-controlled shutdown mode (0:CRU 1:GPIO) |
| 157 | * @tshut_polarity: the hardware-controlled active polarity (0:LOW 1:HIGH) |
| 158 | */ |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 159 | struct rockchip_thermal_data { |
| 160 | const struct rockchip_tsadc_chip *chip; |
| 161 | struct platform_device *pdev; |
| 162 | struct reset_control *reset; |
| 163 | |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 164 | struct rockchip_thermal_sensor sensors[SOC_MAX_SENSORS]; |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 165 | |
| 166 | struct clk *clk; |
| 167 | struct clk *pclk; |
| 168 | |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 169 | struct regmap *grf; |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 170 | void __iomem *regs; |
| 171 | |
Caesar Wang | 437df21 | 2015-11-09 12:48:58 +0800 | [diff] [blame] | 172 | int tshut_temp; |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 173 | enum tshut_mode tshut_mode; |
| 174 | enum tshut_polarity tshut_polarity; |
| 175 | }; |
| 176 | |
Caesar Wang | 952418a | 2016-02-15 15:33:30 +0800 | [diff] [blame] | 177 | /** |
| 178 | * TSADC Sensor Register description: |
| 179 | * |
| 180 | * TSADCV2_* are used for RK3288 SoCs, the other chips can reuse it. |
| 181 | * TSADCV3_* are used for newer SoCs than RK3288. (e.g: RK3228, RK3399) |
| 182 | * |
| 183 | */ |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 184 | #define TSADCV2_USER_CON 0x00 |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 185 | #define TSADCV2_AUTO_CON 0x04 |
| 186 | #define TSADCV2_INT_EN 0x08 |
| 187 | #define TSADCV2_INT_PD 0x0c |
| 188 | #define TSADCV2_DATA(chn) (0x20 + (chn) * 0x04) |
Caesar Wang | 1484850 | 2016-06-22 16:42:05 +0800 | [diff] [blame^] | 189 | #define TSADCV2_COMP_INT(chn) (0x30 + (chn) * 0x04) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 190 | #define TSADCV2_COMP_SHUT(chn) (0x40 + (chn) * 0x04) |
| 191 | #define TSADCV2_HIGHT_INT_DEBOUNCE 0x60 |
| 192 | #define TSADCV2_HIGHT_TSHUT_DEBOUNCE 0x64 |
| 193 | #define TSADCV2_AUTO_PERIOD 0x68 |
| 194 | #define TSADCV2_AUTO_PERIOD_HT 0x6c |
| 195 | |
| 196 | #define TSADCV2_AUTO_EN BIT(0) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 197 | #define TSADCV2_AUTO_SRC_EN(chn) BIT(4 + (chn)) |
| 198 | #define TSADCV2_AUTO_TSHUT_POLARITY_HIGH BIT(8) |
Caesar Wang | 678065d | 2016-04-18 11:35:58 +0800 | [diff] [blame] | 199 | |
Caesar Wang | 7ea38c6 | 2016-02-15 15:33:31 +0800 | [diff] [blame] | 200 | #define TSADCV3_AUTO_Q_SEL_EN BIT(1) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 201 | |
| 202 | #define TSADCV2_INT_SRC_EN(chn) BIT(chn) |
| 203 | #define TSADCV2_SHUT_2GPIO_SRC_EN(chn) BIT(4 + (chn)) |
| 204 | #define TSADCV2_SHUT_2CRU_SRC_EN(chn) BIT(8 + (chn)) |
| 205 | |
Dmitry Torokhov | 452e01b | 2015-08-07 14:00:52 -0700 | [diff] [blame] | 206 | #define TSADCV2_INT_PD_CLEAR_MASK ~BIT(8) |
Caesar Wang | 952418a | 2016-02-15 15:33:30 +0800 | [diff] [blame] | 207 | #define TSADCV3_INT_PD_CLEAR_MASK ~BIT(16) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 208 | |
| 209 | #define TSADCV2_DATA_MASK 0xfff |
Caesar Wang | 20f0af7 | 2015-11-09 12:48:59 +0800 | [diff] [blame] | 210 | #define TSADCV3_DATA_MASK 0x3ff |
| 211 | |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 212 | #define TSADCV2_HIGHT_INT_DEBOUNCE_COUNT 4 |
| 213 | #define TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT 4 |
| 214 | #define TSADCV2_AUTO_PERIOD_TIME 250 /* msec */ |
| 215 | #define TSADCV2_AUTO_PERIOD_HT_TIME 50 /* msec */ |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 216 | #define TSADCV2_USER_INTER_PD_SOC 0x340 /* 13 clocks */ |
| 217 | |
| 218 | #define GRF_SARADC_TESTBIT 0x0e644 |
| 219 | #define GRF_TSADC_TESTBIT_L 0x0e648 |
| 220 | #define GRF_TSADC_TESTBIT_H 0x0e64c |
| 221 | |
| 222 | #define GRF_TSADC_TSEN_PD_ON (0x30003 << 0) |
| 223 | #define GRF_TSADC_TSEN_PD_OFF (0x30000 << 0) |
| 224 | #define GRF_SARADC_TESTBIT_ON (0x10001 << 2) |
| 225 | #define GRF_TSADC_TESTBIT_H_ON (0x10001 << 2) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 226 | |
Caesar Wang | 678065d | 2016-04-18 11:35:58 +0800 | [diff] [blame] | 227 | /** |
| 228 | * struct tsadc_table - code to temperature conversion table |
| 229 | * @code: the value of adc channel |
| 230 | * @temp: the temperature |
| 231 | * Note: |
| 232 | * code to temperature mapping of the temperature sensor is a piece wise linear |
| 233 | * curve.Any temperature, code faling between to 2 give temperatures can be |
| 234 | * linearly interpolated. |
| 235 | * Code to Temperature mapping should be updated based on manufacturer results. |
| 236 | */ |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 237 | struct tsadc_table { |
Dmitry Torokhov | d9a241c | 2015-08-07 13:59:23 -0700 | [diff] [blame] | 238 | u32 code; |
Caesar Wang | 437df21 | 2015-11-09 12:48:58 +0800 | [diff] [blame] | 239 | int temp; |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 240 | }; |
| 241 | |
Caesar Wang | 952418a | 2016-02-15 15:33:30 +0800 | [diff] [blame] | 242 | static const struct tsadc_table rk3228_code_table[] = { |
Caesar Wang | 7ea38c6 | 2016-02-15 15:33:31 +0800 | [diff] [blame] | 243 | {0, -40000}, |
| 244 | {588, -40000}, |
| 245 | {593, -35000}, |
| 246 | {598, -30000}, |
| 247 | {603, -25000}, |
| 248 | {608, -20000}, |
| 249 | {613, -15000}, |
| 250 | {618, -10000}, |
| 251 | {623, -5000}, |
| 252 | {629, 0}, |
| 253 | {634, 5000}, |
| 254 | {639, 10000}, |
| 255 | {644, 15000}, |
| 256 | {649, 20000}, |
| 257 | {654, 25000}, |
| 258 | {660, 30000}, |
| 259 | {665, 35000}, |
| 260 | {670, 40000}, |
| 261 | {675, 45000}, |
| 262 | {681, 50000}, |
| 263 | {686, 55000}, |
| 264 | {691, 60000}, |
| 265 | {696, 65000}, |
| 266 | {702, 70000}, |
| 267 | {707, 75000}, |
| 268 | {712, 80000}, |
| 269 | {717, 85000}, |
| 270 | {723, 90000}, |
| 271 | {728, 95000}, |
| 272 | {733, 100000}, |
| 273 | {738, 105000}, |
| 274 | {744, 110000}, |
| 275 | {749, 115000}, |
| 276 | {754, 120000}, |
| 277 | {760, 125000}, |
| 278 | {TSADCV2_DATA_MASK, 125000}, |
Caesar Wang | 7b02a5e | 2015-12-03 16:48:42 +0800 | [diff] [blame] | 279 | }; |
| 280 | |
Caesar Wang | 952418a | 2016-02-15 15:33:30 +0800 | [diff] [blame] | 281 | static const struct tsadc_table rk3288_code_table[] = { |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 282 | {TSADCV2_DATA_MASK, -40000}, |
| 283 | {3800, -40000}, |
| 284 | {3792, -35000}, |
| 285 | {3783, -30000}, |
| 286 | {3774, -25000}, |
| 287 | {3765, -20000}, |
| 288 | {3756, -15000}, |
| 289 | {3747, -10000}, |
| 290 | {3737, -5000}, |
| 291 | {3728, 0}, |
| 292 | {3718, 5000}, |
| 293 | {3708, 10000}, |
| 294 | {3698, 15000}, |
| 295 | {3688, 20000}, |
| 296 | {3678, 25000}, |
| 297 | {3667, 30000}, |
| 298 | {3656, 35000}, |
| 299 | {3645, 40000}, |
| 300 | {3634, 45000}, |
| 301 | {3623, 50000}, |
| 302 | {3611, 55000}, |
| 303 | {3600, 60000}, |
| 304 | {3588, 65000}, |
| 305 | {3575, 70000}, |
| 306 | {3563, 75000}, |
| 307 | {3550, 80000}, |
| 308 | {3537, 85000}, |
| 309 | {3524, 90000}, |
| 310 | {3510, 95000}, |
| 311 | {3496, 100000}, |
| 312 | {3482, 105000}, |
| 313 | {3467, 110000}, |
| 314 | {3452, 115000}, |
| 315 | {3437, 120000}, |
| 316 | {3421, 125000}, |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 317 | }; |
| 318 | |
Caesar Wang | 952418a | 2016-02-15 15:33:30 +0800 | [diff] [blame] | 319 | static const struct tsadc_table rk3368_code_table[] = { |
Caesar Wang | 20f0af7 | 2015-11-09 12:48:59 +0800 | [diff] [blame] | 320 | {0, -40000}, |
| 321 | {106, -40000}, |
| 322 | {108, -35000}, |
| 323 | {110, -30000}, |
| 324 | {112, -25000}, |
| 325 | {114, -20000}, |
| 326 | {116, -15000}, |
| 327 | {118, -10000}, |
| 328 | {120, -5000}, |
| 329 | {122, 0}, |
| 330 | {124, 5000}, |
| 331 | {126, 10000}, |
| 332 | {128, 15000}, |
| 333 | {130, 20000}, |
| 334 | {132, 25000}, |
| 335 | {134, 30000}, |
| 336 | {136, 35000}, |
| 337 | {138, 40000}, |
| 338 | {140, 45000}, |
| 339 | {142, 50000}, |
| 340 | {144, 55000}, |
| 341 | {146, 60000}, |
| 342 | {148, 65000}, |
| 343 | {150, 70000}, |
| 344 | {152, 75000}, |
| 345 | {154, 80000}, |
| 346 | {156, 85000}, |
| 347 | {158, 90000}, |
| 348 | {160, 95000}, |
| 349 | {162, 100000}, |
| 350 | {163, 105000}, |
| 351 | {165, 110000}, |
| 352 | {167, 115000}, |
| 353 | {169, 120000}, |
| 354 | {171, 125000}, |
| 355 | {TSADCV3_DATA_MASK, 125000}, |
| 356 | }; |
| 357 | |
Caesar Wang | 952418a | 2016-02-15 15:33:30 +0800 | [diff] [blame] | 358 | static const struct tsadc_table rk3399_code_table[] = { |
Caesar Wang | 7ea38c6 | 2016-02-15 15:33:31 +0800 | [diff] [blame] | 359 | {0, -40000}, |
Caesar Wang | f762a35 | 2016-04-18 11:35:55 +0800 | [diff] [blame] | 360 | {402, -40000}, |
| 361 | {410, -35000}, |
| 362 | {419, -30000}, |
| 363 | {427, -25000}, |
| 364 | {436, -20000}, |
| 365 | {444, -15000}, |
| 366 | {453, -10000}, |
| 367 | {461, -5000}, |
| 368 | {470, 0}, |
| 369 | {478, 5000}, |
| 370 | {487, 10000}, |
| 371 | {496, 15000}, |
| 372 | {504, 20000}, |
| 373 | {513, 25000}, |
| 374 | {521, 30000}, |
| 375 | {530, 35000}, |
| 376 | {538, 40000}, |
| 377 | {547, 45000}, |
| 378 | {555, 50000}, |
| 379 | {564, 55000}, |
| 380 | {573, 60000}, |
| 381 | {581, 65000}, |
| 382 | {590, 70000}, |
| 383 | {599, 75000}, |
| 384 | {607, 80000}, |
| 385 | {616, 85000}, |
| 386 | {624, 90000}, |
| 387 | {633, 95000}, |
| 388 | {642, 100000}, |
| 389 | {650, 105000}, |
| 390 | {659, 110000}, |
| 391 | {668, 115000}, |
| 392 | {677, 120000}, |
| 393 | {685, 125000}, |
Caesar Wang | 7ea38c6 | 2016-02-15 15:33:31 +0800 | [diff] [blame] | 394 | {TSADCV3_DATA_MASK, 125000}, |
Caesar Wang | b0d7033 | 2015-12-03 16:48:43 +0800 | [diff] [blame] | 395 | }; |
| 396 | |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 397 | static u32 rk_tsadcv2_temp_to_code(struct chip_tsadc_table table, |
Caesar Wang | 437df21 | 2015-11-09 12:48:58 +0800 | [diff] [blame] | 398 | int temp) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 399 | { |
| 400 | int high, low, mid; |
| 401 | |
| 402 | low = 0; |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 403 | high = table.length - 1; |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 404 | mid = (high + low) / 2; |
| 405 | |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 406 | if (temp < table.id[low].temp || temp > table.id[high].temp) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 407 | return 0; |
| 408 | |
| 409 | while (low <= high) { |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 410 | if (temp == table.id[mid].temp) |
| 411 | return table.id[mid].code; |
| 412 | else if (temp < table.id[mid].temp) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 413 | high = mid - 1; |
| 414 | else |
| 415 | low = mid + 1; |
| 416 | mid = (low + high) / 2; |
| 417 | } |
| 418 | |
| 419 | return 0; |
| 420 | } |
| 421 | |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 422 | static int rk_tsadcv2_code_to_temp(struct chip_tsadc_table table, u32 code, |
| 423 | int *temp) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 424 | { |
Dmitry Torokhov | d9a241c | 2015-08-07 13:59:23 -0700 | [diff] [blame] | 425 | unsigned int low = 1; |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 426 | unsigned int high = table.length - 1; |
Caesar Wang | 1e9a1ae | 2015-01-25 10:11:11 +0800 | [diff] [blame] | 427 | unsigned int mid = (low + high) / 2; |
| 428 | unsigned int num; |
| 429 | unsigned long denom; |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 430 | |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 431 | WARN_ON(table.length < 2); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 432 | |
Caesar Wang | 020ba95 | 2015-11-09 12:48:57 +0800 | [diff] [blame] | 433 | switch (table.mode) { |
| 434 | case ADC_DECREMENT: |
| 435 | code &= table.data_mask; |
| 436 | if (code < table.id[high].code) |
| 437 | return -EAGAIN; /* Incorrect reading */ |
Dmitry Torokhov | d9a241c | 2015-08-07 13:59:23 -0700 | [diff] [blame] | 438 | |
Caesar Wang | 020ba95 | 2015-11-09 12:48:57 +0800 | [diff] [blame] | 439 | while (low <= high) { |
| 440 | if (code >= table.id[mid].code && |
| 441 | code < table.id[mid - 1].code) |
| 442 | break; |
| 443 | else if (code < table.id[mid].code) |
| 444 | low = mid + 1; |
| 445 | else |
| 446 | high = mid - 1; |
| 447 | |
| 448 | mid = (low + high) / 2; |
| 449 | } |
| 450 | break; |
| 451 | case ADC_INCREMENT: |
| 452 | code &= table.data_mask; |
| 453 | if (code < table.id[low].code) |
| 454 | return -EAGAIN; /* Incorrect reading */ |
| 455 | |
| 456 | while (low <= high) { |
Caesar Wang | a87dd79 | 2016-04-18 11:35:54 +0800 | [diff] [blame] | 457 | if (code <= table.id[mid].code && |
| 458 | code > table.id[mid - 1].code) |
Caesar Wang | 020ba95 | 2015-11-09 12:48:57 +0800 | [diff] [blame] | 459 | break; |
| 460 | else if (code > table.id[mid].code) |
| 461 | low = mid + 1; |
| 462 | else |
| 463 | high = mid - 1; |
| 464 | |
| 465 | mid = (low + high) / 2; |
| 466 | } |
| 467 | break; |
| 468 | default: |
| 469 | pr_err("Invalid the conversion table\n"); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 470 | } |
| 471 | |
Caesar Wang | 1e9a1ae | 2015-01-25 10:11:11 +0800 | [diff] [blame] | 472 | /* |
| 473 | * The 5C granularity provided by the table is too much. Let's |
| 474 | * assume that the relationship between sensor readings and |
| 475 | * temperature between 2 table entries is linear and interpolate |
| 476 | * to produce less granular result. |
| 477 | */ |
Elaine Zhang | 1d37a03 | 2016-02-15 15:33:29 +0800 | [diff] [blame] | 478 | num = table.id[mid].temp - table.id[mid - 1].temp; |
Caesar Wang | 020ba95 | 2015-11-09 12:48:57 +0800 | [diff] [blame] | 479 | num *= abs(table.id[mid - 1].code - code); |
| 480 | denom = abs(table.id[mid - 1].code - table.id[mid].code); |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 481 | *temp = table.id[mid - 1].temp + (num / denom); |
Dmitry Torokhov | d9a241c | 2015-08-07 13:59:23 -0700 | [diff] [blame] | 482 | |
| 483 | return 0; |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 484 | } |
| 485 | |
| 486 | /** |
Caesar Wang | 144c556 | 2015-11-05 13:17:59 +0800 | [diff] [blame] | 487 | * rk_tsadcv2_initialize - initialize TASDC Controller. |
| 488 | * |
| 489 | * (1) Set TSADC_V2_AUTO_PERIOD: |
| 490 | * Configure the interleave between every two accessing of |
| 491 | * TSADC in normal operation. |
| 492 | * |
| 493 | * (2) Set TSADCV2_AUTO_PERIOD_HT: |
| 494 | * Configure the interleave between every two accessing of |
| 495 | * TSADC after the temperature is higher than COM_SHUT or COM_INT. |
| 496 | * |
| 497 | * (3) Set TSADCV2_HIGH_INT_DEBOUNCE and TSADC_HIGHT_TSHUT_DEBOUNCE: |
| 498 | * If the temperature is higher than COMP_INT or COMP_SHUT for |
| 499 | * "debounce" times, TSADC controller will generate interrupt or TSHUT. |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 500 | */ |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 501 | static void rk_tsadcv2_initialize(struct regmap *grf, void __iomem *regs, |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 502 | enum tshut_polarity tshut_polarity) |
| 503 | { |
| 504 | if (tshut_polarity == TSHUT_HIGH_ACTIVE) |
Dmitry Torokhov | 452e01b | 2015-08-07 14:00:52 -0700 | [diff] [blame] | 505 | writel_relaxed(0U | TSADCV2_AUTO_TSHUT_POLARITY_HIGH, |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 506 | regs + TSADCV2_AUTO_CON); |
| 507 | else |
Dmitry Torokhov | 452e01b | 2015-08-07 14:00:52 -0700 | [diff] [blame] | 508 | writel_relaxed(0U & ~TSADCV2_AUTO_TSHUT_POLARITY_HIGH, |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 509 | regs + TSADCV2_AUTO_CON); |
| 510 | |
| 511 | writel_relaxed(TSADCV2_AUTO_PERIOD_TIME, regs + TSADCV2_AUTO_PERIOD); |
| 512 | writel_relaxed(TSADCV2_HIGHT_INT_DEBOUNCE_COUNT, |
| 513 | regs + TSADCV2_HIGHT_INT_DEBOUNCE); |
| 514 | writel_relaxed(TSADCV2_AUTO_PERIOD_HT_TIME, |
| 515 | regs + TSADCV2_AUTO_PERIOD_HT); |
| 516 | writel_relaxed(TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT, |
| 517 | regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE); |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 518 | |
| 519 | if (IS_ERR(grf)) { |
| 520 | pr_warn("%s: Missing rockchip,grf property\n", __func__); |
| 521 | return; |
| 522 | } |
| 523 | } |
| 524 | |
| 525 | /** |
| 526 | * rk_tsadcv3_initialize - initialize TASDC Controller. |
Caesar Wang | 678065d | 2016-04-18 11:35:58 +0800 | [diff] [blame] | 527 | * |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 528 | * (1) The tsadc control power sequence. |
| 529 | * |
| 530 | * (2) Set TSADC_V2_AUTO_PERIOD: |
| 531 | * Configure the interleave between every two accessing of |
| 532 | * TSADC in normal operation. |
| 533 | * |
| 534 | * (2) Set TSADCV2_AUTO_PERIOD_HT: |
| 535 | * Configure the interleave between every two accessing of |
| 536 | * TSADC after the temperature is higher than COM_SHUT or COM_INT. |
| 537 | * |
| 538 | * (3) Set TSADCV2_HIGH_INT_DEBOUNCE and TSADC_HIGHT_TSHUT_DEBOUNCE: |
| 539 | * If the temperature is higher than COMP_INT or COMP_SHUT for |
| 540 | * "debounce" times, TSADC controller will generate interrupt or TSHUT. |
| 541 | */ |
| 542 | static void rk_tsadcv3_initialize(struct regmap *grf, void __iomem *regs, |
| 543 | enum tshut_polarity tshut_polarity) |
| 544 | { |
| 545 | /* The tsadc control power sequence */ |
| 546 | if (IS_ERR(grf)) { |
| 547 | /* Set interleave value to workround ic time sync issue */ |
| 548 | writel_relaxed(TSADCV2_USER_INTER_PD_SOC, regs + |
| 549 | TSADCV2_USER_CON); |
| 550 | } else { |
| 551 | regmap_write(grf, GRF_TSADC_TESTBIT_L, GRF_TSADC_TSEN_PD_ON); |
| 552 | mdelay(10); |
| 553 | regmap_write(grf, GRF_TSADC_TESTBIT_L, GRF_TSADC_TSEN_PD_OFF); |
Caesar Wang | 2fe5c1b | 2016-05-03 10:23:50 +0800 | [diff] [blame] | 554 | usleep_range(15, 100); /* The spec note says at least 15 us */ |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 555 | regmap_write(grf, GRF_SARADC_TESTBIT, GRF_SARADC_TESTBIT_ON); |
| 556 | regmap_write(grf, GRF_TSADC_TESTBIT_H, GRF_TSADC_TESTBIT_H_ON); |
Caesar Wang | 2fe5c1b | 2016-05-03 10:23:50 +0800 | [diff] [blame] | 557 | usleep_range(90, 200); /* The spec note says at least 90 us */ |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 558 | } |
| 559 | |
| 560 | if (tshut_polarity == TSHUT_HIGH_ACTIVE) |
| 561 | writel_relaxed(0U | TSADCV2_AUTO_TSHUT_POLARITY_HIGH, |
| 562 | regs + TSADCV2_AUTO_CON); |
| 563 | else |
| 564 | writel_relaxed(0U & ~TSADCV2_AUTO_TSHUT_POLARITY_HIGH, |
| 565 | regs + TSADCV2_AUTO_CON); |
| 566 | |
| 567 | writel_relaxed(TSADCV2_AUTO_PERIOD_TIME, regs + TSADCV2_AUTO_PERIOD); |
| 568 | writel_relaxed(TSADCV2_HIGHT_INT_DEBOUNCE_COUNT, |
| 569 | regs + TSADCV2_HIGHT_INT_DEBOUNCE); |
| 570 | writel_relaxed(TSADCV2_AUTO_PERIOD_HT_TIME, |
| 571 | regs + TSADCV2_AUTO_PERIOD_HT); |
| 572 | writel_relaxed(TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT, |
| 573 | regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 574 | } |
| 575 | |
| 576 | static void rk_tsadcv2_irq_ack(void __iomem *regs) |
| 577 | { |
| 578 | u32 val; |
| 579 | |
| 580 | val = readl_relaxed(regs + TSADCV2_INT_PD); |
Dmitry Torokhov | 452e01b | 2015-08-07 14:00:52 -0700 | [diff] [blame] | 581 | writel_relaxed(val & TSADCV2_INT_PD_CLEAR_MASK, regs + TSADCV2_INT_PD); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 582 | } |
| 583 | |
Caesar Wang | 952418a | 2016-02-15 15:33:30 +0800 | [diff] [blame] | 584 | static void rk_tsadcv3_irq_ack(void __iomem *regs) |
| 585 | { |
| 586 | u32 val; |
| 587 | |
| 588 | val = readl_relaxed(regs + TSADCV2_INT_PD); |
| 589 | writel_relaxed(val & TSADCV3_INT_PD_CLEAR_MASK, regs + TSADCV2_INT_PD); |
| 590 | } |
| 591 | |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 592 | static void rk_tsadcv2_control(void __iomem *regs, bool enable) |
| 593 | { |
| 594 | u32 val; |
| 595 | |
| 596 | val = readl_relaxed(regs + TSADCV2_AUTO_CON); |
| 597 | if (enable) |
| 598 | val |= TSADCV2_AUTO_EN; |
| 599 | else |
| 600 | val &= ~TSADCV2_AUTO_EN; |
| 601 | |
| 602 | writel_relaxed(val, regs + TSADCV2_AUTO_CON); |
| 603 | } |
| 604 | |
Caesar Wang | 7ea38c6 | 2016-02-15 15:33:31 +0800 | [diff] [blame] | 605 | /** |
Caesar Wang | 678065d | 2016-04-18 11:35:58 +0800 | [diff] [blame] | 606 | * rk_tsadcv3_control - the tsadc controller is enabled or disabled. |
| 607 | * |
| 608 | * NOTE: TSADC controller works at auto mode, and some SoCs need set the |
| 609 | * tsadc_q_sel bit on TSADCV2_AUTO_CON[1]. The (1024 - tsadc_q) as output |
| 610 | * adc value if setting this bit to enable. |
Caesar Wang | 7ea38c6 | 2016-02-15 15:33:31 +0800 | [diff] [blame] | 611 | */ |
| 612 | static void rk_tsadcv3_control(void __iomem *regs, bool enable) |
| 613 | { |
| 614 | u32 val; |
| 615 | |
| 616 | val = readl_relaxed(regs + TSADCV2_AUTO_CON); |
| 617 | if (enable) |
| 618 | val |= TSADCV2_AUTO_EN | TSADCV3_AUTO_Q_SEL_EN; |
| 619 | else |
| 620 | val &= ~TSADCV2_AUTO_EN; |
| 621 | |
| 622 | writel_relaxed(val, regs + TSADCV2_AUTO_CON); |
| 623 | } |
| 624 | |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 625 | static int rk_tsadcv2_get_temp(struct chip_tsadc_table table, |
| 626 | int chn, void __iomem *regs, int *temp) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 627 | { |
| 628 | u32 val; |
| 629 | |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 630 | val = readl_relaxed(regs + TSADCV2_DATA(chn)); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 631 | |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 632 | return rk_tsadcv2_code_to_temp(table, val, temp); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 633 | } |
| 634 | |
Caesar Wang | 1484850 | 2016-06-22 16:42:05 +0800 | [diff] [blame^] | 635 | static void rk_tsadcv2_alarm_temp(struct chip_tsadc_table table, |
| 636 | int chn, void __iomem *regs, int temp) |
| 637 | { |
| 638 | u32 alarm_value, int_en; |
| 639 | |
| 640 | alarm_value = rk_tsadcv2_temp_to_code(table, temp); |
| 641 | writel_relaxed(alarm_value & table.data_mask, |
| 642 | regs + TSADCV2_COMP_INT(chn)); |
| 643 | |
| 644 | int_en = readl_relaxed(regs + TSADCV2_INT_EN); |
| 645 | int_en |= TSADCV2_INT_SRC_EN(chn); |
| 646 | writel_relaxed(int_en, regs + TSADCV2_INT_EN); |
| 647 | } |
| 648 | |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 649 | static void rk_tsadcv2_tshut_temp(struct chip_tsadc_table table, |
Caesar Wang | 437df21 | 2015-11-09 12:48:58 +0800 | [diff] [blame] | 650 | int chn, void __iomem *regs, int temp) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 651 | { |
| 652 | u32 tshut_value, val; |
| 653 | |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 654 | tshut_value = rk_tsadcv2_temp_to_code(table, temp); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 655 | writel_relaxed(tshut_value, regs + TSADCV2_COMP_SHUT(chn)); |
| 656 | |
| 657 | /* TSHUT will be valid */ |
| 658 | val = readl_relaxed(regs + TSADCV2_AUTO_CON); |
| 659 | writel_relaxed(val | TSADCV2_AUTO_SRC_EN(chn), regs + TSADCV2_AUTO_CON); |
| 660 | } |
| 661 | |
| 662 | static void rk_tsadcv2_tshut_mode(int chn, void __iomem *regs, |
| 663 | enum tshut_mode mode) |
| 664 | { |
| 665 | u32 val; |
| 666 | |
| 667 | val = readl_relaxed(regs + TSADCV2_INT_EN); |
| 668 | if (mode == TSHUT_MODE_GPIO) { |
| 669 | val &= ~TSADCV2_SHUT_2CRU_SRC_EN(chn); |
| 670 | val |= TSADCV2_SHUT_2GPIO_SRC_EN(chn); |
| 671 | } else { |
| 672 | val &= ~TSADCV2_SHUT_2GPIO_SRC_EN(chn); |
| 673 | val |= TSADCV2_SHUT_2CRU_SRC_EN(chn); |
| 674 | } |
| 675 | |
| 676 | writel_relaxed(val, regs + TSADCV2_INT_EN); |
| 677 | } |
| 678 | |
Caesar Wang | 7b02a5e | 2015-12-03 16:48:42 +0800 | [diff] [blame] | 679 | static const struct rockchip_tsadc_chip rk3228_tsadc_data = { |
| 680 | .chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */ |
| 681 | .chn_num = 1, /* one channel for tsadc */ |
| 682 | |
| 683 | .tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */ |
| 684 | .tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */ |
| 685 | .tshut_temp = 95000, |
| 686 | |
| 687 | .initialize = rk_tsadcv2_initialize, |
Caesar Wang | 952418a | 2016-02-15 15:33:30 +0800 | [diff] [blame] | 688 | .irq_ack = rk_tsadcv3_irq_ack, |
Caesar Wang | 7ea38c6 | 2016-02-15 15:33:31 +0800 | [diff] [blame] | 689 | .control = rk_tsadcv3_control, |
Caesar Wang | 7b02a5e | 2015-12-03 16:48:42 +0800 | [diff] [blame] | 690 | .get_temp = rk_tsadcv2_get_temp, |
Caesar Wang | 1484850 | 2016-06-22 16:42:05 +0800 | [diff] [blame^] | 691 | .set_alarm_temp = rk_tsadcv2_alarm_temp, |
Caesar Wang | 7b02a5e | 2015-12-03 16:48:42 +0800 | [diff] [blame] | 692 | .set_tshut_temp = rk_tsadcv2_tshut_temp, |
| 693 | .set_tshut_mode = rk_tsadcv2_tshut_mode, |
| 694 | |
| 695 | .table = { |
Caesar Wang | 952418a | 2016-02-15 15:33:30 +0800 | [diff] [blame] | 696 | .id = rk3228_code_table, |
| 697 | .length = ARRAY_SIZE(rk3228_code_table), |
Caesar Wang | 7b02a5e | 2015-12-03 16:48:42 +0800 | [diff] [blame] | 698 | .data_mask = TSADCV3_DATA_MASK, |
Caesar Wang | 7ea38c6 | 2016-02-15 15:33:31 +0800 | [diff] [blame] | 699 | .mode = ADC_INCREMENT, |
Caesar Wang | 7b02a5e | 2015-12-03 16:48:42 +0800 | [diff] [blame] | 700 | }, |
| 701 | }; |
| 702 | |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 703 | static const struct rockchip_tsadc_chip rk3288_tsadc_data = { |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 704 | .chn_id[SENSOR_CPU] = 1, /* cpu sensor is channel 1 */ |
| 705 | .chn_id[SENSOR_GPU] = 2, /* gpu sensor is channel 2 */ |
| 706 | .chn_num = 2, /* two channels for tsadc */ |
| 707 | |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 708 | .tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */ |
| 709 | .tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */ |
| 710 | .tshut_temp = 95000, |
| 711 | |
| 712 | .initialize = rk_tsadcv2_initialize, |
| 713 | .irq_ack = rk_tsadcv2_irq_ack, |
| 714 | .control = rk_tsadcv2_control, |
| 715 | .get_temp = rk_tsadcv2_get_temp, |
Caesar Wang | 1484850 | 2016-06-22 16:42:05 +0800 | [diff] [blame^] | 716 | .set_alarm_temp = rk_tsadcv2_alarm_temp, |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 717 | .set_tshut_temp = rk_tsadcv2_tshut_temp, |
| 718 | .set_tshut_mode = rk_tsadcv2_tshut_mode, |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 719 | |
| 720 | .table = { |
Caesar Wang | 952418a | 2016-02-15 15:33:30 +0800 | [diff] [blame] | 721 | .id = rk3288_code_table, |
| 722 | .length = ARRAY_SIZE(rk3288_code_table), |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 723 | .data_mask = TSADCV2_DATA_MASK, |
Caesar Wang | 020ba95 | 2015-11-09 12:48:57 +0800 | [diff] [blame] | 724 | .mode = ADC_DECREMENT, |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 725 | }, |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 726 | }; |
| 727 | |
Elaine Zhang | 1cd60269 | 2016-04-18 11:35:57 +0800 | [diff] [blame] | 728 | static const struct rockchip_tsadc_chip rk3366_tsadc_data = { |
| 729 | .chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */ |
| 730 | .chn_id[SENSOR_GPU] = 1, /* gpu sensor is channel 1 */ |
| 731 | .chn_num = 2, /* two channels for tsadc */ |
| 732 | |
| 733 | .tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */ |
| 734 | .tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */ |
| 735 | .tshut_temp = 95000, |
| 736 | |
| 737 | .initialize = rk_tsadcv3_initialize, |
| 738 | .irq_ack = rk_tsadcv3_irq_ack, |
| 739 | .control = rk_tsadcv3_control, |
| 740 | .get_temp = rk_tsadcv2_get_temp, |
Caesar Wang | 1484850 | 2016-06-22 16:42:05 +0800 | [diff] [blame^] | 741 | .set_alarm_temp = rk_tsadcv2_alarm_temp, |
Elaine Zhang | 1cd60269 | 2016-04-18 11:35:57 +0800 | [diff] [blame] | 742 | .set_tshut_temp = rk_tsadcv2_tshut_temp, |
| 743 | .set_tshut_mode = rk_tsadcv2_tshut_mode, |
| 744 | |
| 745 | .table = { |
| 746 | .id = rk3228_code_table, |
| 747 | .length = ARRAY_SIZE(rk3228_code_table), |
| 748 | .data_mask = TSADCV3_DATA_MASK, |
| 749 | .mode = ADC_INCREMENT, |
| 750 | }, |
| 751 | }; |
| 752 | |
Caesar Wang | 20f0af7 | 2015-11-09 12:48:59 +0800 | [diff] [blame] | 753 | static const struct rockchip_tsadc_chip rk3368_tsadc_data = { |
| 754 | .chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */ |
| 755 | .chn_id[SENSOR_GPU] = 1, /* gpu sensor is channel 1 */ |
| 756 | .chn_num = 2, /* two channels for tsadc */ |
| 757 | |
| 758 | .tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */ |
| 759 | .tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */ |
| 760 | .tshut_temp = 95000, |
| 761 | |
| 762 | .initialize = rk_tsadcv2_initialize, |
| 763 | .irq_ack = rk_tsadcv2_irq_ack, |
| 764 | .control = rk_tsadcv2_control, |
| 765 | .get_temp = rk_tsadcv2_get_temp, |
Caesar Wang | 1484850 | 2016-06-22 16:42:05 +0800 | [diff] [blame^] | 766 | .set_alarm_temp = rk_tsadcv2_alarm_temp, |
Caesar Wang | 20f0af7 | 2015-11-09 12:48:59 +0800 | [diff] [blame] | 767 | .set_tshut_temp = rk_tsadcv2_tshut_temp, |
| 768 | .set_tshut_mode = rk_tsadcv2_tshut_mode, |
| 769 | |
| 770 | .table = { |
Caesar Wang | 952418a | 2016-02-15 15:33:30 +0800 | [diff] [blame] | 771 | .id = rk3368_code_table, |
| 772 | .length = ARRAY_SIZE(rk3368_code_table), |
Caesar Wang | 20f0af7 | 2015-11-09 12:48:59 +0800 | [diff] [blame] | 773 | .data_mask = TSADCV3_DATA_MASK, |
| 774 | .mode = ADC_INCREMENT, |
| 775 | }, |
| 776 | }; |
| 777 | |
Caesar Wang | b0d7033 | 2015-12-03 16:48:43 +0800 | [diff] [blame] | 778 | static const struct rockchip_tsadc_chip rk3399_tsadc_data = { |
| 779 | .chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */ |
| 780 | .chn_id[SENSOR_GPU] = 1, /* gpu sensor is channel 1 */ |
| 781 | .chn_num = 2, /* two channels for tsadc */ |
| 782 | |
| 783 | .tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */ |
| 784 | .tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */ |
| 785 | .tshut_temp = 95000, |
| 786 | |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 787 | .initialize = rk_tsadcv3_initialize, |
Caesar Wang | 952418a | 2016-02-15 15:33:30 +0800 | [diff] [blame] | 788 | .irq_ack = rk_tsadcv3_irq_ack, |
Caesar Wang | 7ea38c6 | 2016-02-15 15:33:31 +0800 | [diff] [blame] | 789 | .control = rk_tsadcv3_control, |
Caesar Wang | b0d7033 | 2015-12-03 16:48:43 +0800 | [diff] [blame] | 790 | .get_temp = rk_tsadcv2_get_temp, |
Caesar Wang | 1484850 | 2016-06-22 16:42:05 +0800 | [diff] [blame^] | 791 | .set_alarm_temp = rk_tsadcv2_alarm_temp, |
Caesar Wang | b0d7033 | 2015-12-03 16:48:43 +0800 | [diff] [blame] | 792 | .set_tshut_temp = rk_tsadcv2_tshut_temp, |
| 793 | .set_tshut_mode = rk_tsadcv2_tshut_mode, |
| 794 | |
| 795 | .table = { |
Caesar Wang | 952418a | 2016-02-15 15:33:30 +0800 | [diff] [blame] | 796 | .id = rk3399_code_table, |
| 797 | .length = ARRAY_SIZE(rk3399_code_table), |
Caesar Wang | b0d7033 | 2015-12-03 16:48:43 +0800 | [diff] [blame] | 798 | .data_mask = TSADCV3_DATA_MASK, |
Caesar Wang | 7ea38c6 | 2016-02-15 15:33:31 +0800 | [diff] [blame] | 799 | .mode = ADC_INCREMENT, |
Caesar Wang | b0d7033 | 2015-12-03 16:48:43 +0800 | [diff] [blame] | 800 | }, |
| 801 | }; |
| 802 | |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 803 | static const struct of_device_id of_rockchip_thermal_match[] = { |
| 804 | { |
Caesar Wang | 7b02a5e | 2015-12-03 16:48:42 +0800 | [diff] [blame] | 805 | .compatible = "rockchip,rk3228-tsadc", |
| 806 | .data = (void *)&rk3228_tsadc_data, |
| 807 | }, |
| 808 | { |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 809 | .compatible = "rockchip,rk3288-tsadc", |
| 810 | .data = (void *)&rk3288_tsadc_data, |
| 811 | }, |
Caesar Wang | 20f0af7 | 2015-11-09 12:48:59 +0800 | [diff] [blame] | 812 | { |
Elaine Zhang | 1cd60269 | 2016-04-18 11:35:57 +0800 | [diff] [blame] | 813 | .compatible = "rockchip,rk3366-tsadc", |
| 814 | .data = (void *)&rk3366_tsadc_data, |
| 815 | }, |
| 816 | { |
Caesar Wang | 20f0af7 | 2015-11-09 12:48:59 +0800 | [diff] [blame] | 817 | .compatible = "rockchip,rk3368-tsadc", |
| 818 | .data = (void *)&rk3368_tsadc_data, |
| 819 | }, |
Caesar Wang | b0d7033 | 2015-12-03 16:48:43 +0800 | [diff] [blame] | 820 | { |
| 821 | .compatible = "rockchip,rk3399-tsadc", |
| 822 | .data = (void *)&rk3399_tsadc_data, |
| 823 | }, |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 824 | { /* end */ }, |
| 825 | }; |
| 826 | MODULE_DEVICE_TABLE(of, of_rockchip_thermal_match); |
| 827 | |
| 828 | static void |
| 829 | rockchip_thermal_toggle_sensor(struct rockchip_thermal_sensor *sensor, bool on) |
| 830 | { |
| 831 | struct thermal_zone_device *tzd = sensor->tzd; |
| 832 | |
| 833 | tzd->ops->set_mode(tzd, |
| 834 | on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED); |
| 835 | } |
| 836 | |
| 837 | static irqreturn_t rockchip_thermal_alarm_irq_thread(int irq, void *dev) |
| 838 | { |
| 839 | struct rockchip_thermal_data *thermal = dev; |
| 840 | int i; |
| 841 | |
| 842 | dev_dbg(&thermal->pdev->dev, "thermal alarm\n"); |
| 843 | |
| 844 | thermal->chip->irq_ack(thermal->regs); |
| 845 | |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 846 | for (i = 0; i < thermal->chip->chn_num; i++) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 847 | thermal_zone_device_update(thermal->sensors[i].tzd); |
| 848 | |
| 849 | return IRQ_HANDLED; |
| 850 | } |
| 851 | |
Caesar Wang | 1484850 | 2016-06-22 16:42:05 +0800 | [diff] [blame^] | 852 | static int rockchip_thermal_set_trips(void *_sensor, int low, int high) |
| 853 | { |
| 854 | struct rockchip_thermal_sensor *sensor = _sensor; |
| 855 | struct rockchip_thermal_data *thermal = sensor->thermal; |
| 856 | const struct rockchip_tsadc_chip *tsadc = thermal->chip; |
| 857 | |
| 858 | dev_dbg(&thermal->pdev->dev, "%s: sensor %d: low: %d, high %d\n", |
| 859 | __func__, sensor->id, low, high); |
| 860 | |
| 861 | tsadc->set_alarm_temp(tsadc->table, |
| 862 | sensor->id, thermal->regs, high); |
| 863 | |
| 864 | return 0; |
| 865 | } |
| 866 | |
Sascha Hauer | 17e8351 | 2015-07-24 08:12:54 +0200 | [diff] [blame] | 867 | static int rockchip_thermal_get_temp(void *_sensor, int *out_temp) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 868 | { |
| 869 | struct rockchip_thermal_sensor *sensor = _sensor; |
| 870 | struct rockchip_thermal_data *thermal = sensor->thermal; |
| 871 | const struct rockchip_tsadc_chip *tsadc = sensor->thermal->chip; |
| 872 | int retval; |
| 873 | |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 874 | retval = tsadc->get_temp(tsadc->table, |
| 875 | sensor->id, thermal->regs, out_temp); |
Sascha Hauer | 17e8351 | 2015-07-24 08:12:54 +0200 | [diff] [blame] | 876 | dev_dbg(&thermal->pdev->dev, "sensor %d - temp: %d, retval: %d\n", |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 877 | sensor->id, *out_temp, retval); |
| 878 | |
| 879 | return retval; |
| 880 | } |
| 881 | |
| 882 | static const struct thermal_zone_of_device_ops rockchip_of_thermal_ops = { |
| 883 | .get_temp = rockchip_thermal_get_temp, |
Caesar Wang | 1484850 | 2016-06-22 16:42:05 +0800 | [diff] [blame^] | 884 | .set_trips = rockchip_thermal_set_trips, |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 885 | }; |
| 886 | |
| 887 | static int rockchip_configure_from_dt(struct device *dev, |
| 888 | struct device_node *np, |
| 889 | struct rockchip_thermal_data *thermal) |
| 890 | { |
| 891 | u32 shut_temp, tshut_mode, tshut_polarity; |
| 892 | |
| 893 | if (of_property_read_u32(np, "rockchip,hw-tshut-temp", &shut_temp)) { |
| 894 | dev_warn(dev, |
Caesar Wang | 437df21 | 2015-11-09 12:48:58 +0800 | [diff] [blame] | 895 | "Missing tshut temp property, using default %d\n", |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 896 | thermal->chip->tshut_temp); |
| 897 | thermal->tshut_temp = thermal->chip->tshut_temp; |
| 898 | } else { |
Caesar Wang | 43b4eb9 | 2016-02-15 15:33:28 +0800 | [diff] [blame] | 899 | if (shut_temp > INT_MAX) { |
| 900 | dev_err(dev, "Invalid tshut temperature specified: %d\n", |
| 901 | shut_temp); |
| 902 | return -ERANGE; |
| 903 | } |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 904 | thermal->tshut_temp = shut_temp; |
| 905 | } |
| 906 | |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 907 | if (of_property_read_u32(np, "rockchip,hw-tshut-mode", &tshut_mode)) { |
| 908 | dev_warn(dev, |
| 909 | "Missing tshut mode property, using default (%s)\n", |
| 910 | thermal->chip->tshut_mode == TSHUT_MODE_GPIO ? |
| 911 | "gpio" : "cru"); |
| 912 | thermal->tshut_mode = thermal->chip->tshut_mode; |
| 913 | } else { |
| 914 | thermal->tshut_mode = tshut_mode; |
| 915 | } |
| 916 | |
| 917 | if (thermal->tshut_mode > 1) { |
| 918 | dev_err(dev, "Invalid tshut mode specified: %d\n", |
| 919 | thermal->tshut_mode); |
| 920 | return -EINVAL; |
| 921 | } |
| 922 | |
| 923 | if (of_property_read_u32(np, "rockchip,hw-tshut-polarity", |
| 924 | &tshut_polarity)) { |
| 925 | dev_warn(dev, |
| 926 | "Missing tshut-polarity property, using default (%s)\n", |
| 927 | thermal->chip->tshut_polarity == TSHUT_LOW_ACTIVE ? |
| 928 | "low" : "high"); |
| 929 | thermal->tshut_polarity = thermal->chip->tshut_polarity; |
| 930 | } else { |
| 931 | thermal->tshut_polarity = tshut_polarity; |
| 932 | } |
| 933 | |
| 934 | if (thermal->tshut_polarity > 1) { |
| 935 | dev_err(dev, "Invalid tshut-polarity specified: %d\n", |
| 936 | thermal->tshut_polarity); |
| 937 | return -EINVAL; |
| 938 | } |
| 939 | |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 940 | /* The tsadc wont to handle the error in here since some SoCs didn't |
| 941 | * need this property. |
| 942 | */ |
| 943 | thermal->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf"); |
| 944 | |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 945 | return 0; |
| 946 | } |
| 947 | |
| 948 | static int |
| 949 | rockchip_thermal_register_sensor(struct platform_device *pdev, |
| 950 | struct rockchip_thermal_data *thermal, |
| 951 | struct rockchip_thermal_sensor *sensor, |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 952 | int id) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 953 | { |
| 954 | const struct rockchip_tsadc_chip *tsadc = thermal->chip; |
| 955 | int error; |
| 956 | |
| 957 | tsadc->set_tshut_mode(id, thermal->regs, thermal->tshut_mode); |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 958 | tsadc->set_tshut_temp(tsadc->table, id, thermal->regs, |
| 959 | thermal->tshut_temp); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 960 | |
| 961 | sensor->thermal = thermal; |
| 962 | sensor->id = id; |
Eduardo Valentin | 2633ad1 | 2016-03-09 13:10:28 -0800 | [diff] [blame] | 963 | sensor->tzd = devm_thermal_zone_of_sensor_register(&pdev->dev, id, |
| 964 | sensor, &rockchip_of_thermal_ops); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 965 | if (IS_ERR(sensor->tzd)) { |
| 966 | error = PTR_ERR(sensor->tzd); |
| 967 | dev_err(&pdev->dev, "failed to register sensor %d: %d\n", |
| 968 | id, error); |
| 969 | return error; |
| 970 | } |
| 971 | |
| 972 | return 0; |
| 973 | } |
| 974 | |
Caesar Wang | 13c1cfd | 2015-12-03 16:48:39 +0800 | [diff] [blame] | 975 | /** |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 976 | * Reset TSADC Controller, reset all tsadc registers. |
| 977 | */ |
| 978 | static void rockchip_thermal_reset_controller(struct reset_control *reset) |
| 979 | { |
| 980 | reset_control_assert(reset); |
| 981 | usleep_range(10, 20); |
| 982 | reset_control_deassert(reset); |
| 983 | } |
| 984 | |
| 985 | static int rockchip_thermal_probe(struct platform_device *pdev) |
| 986 | { |
| 987 | struct device_node *np = pdev->dev.of_node; |
| 988 | struct rockchip_thermal_data *thermal; |
| 989 | const struct of_device_id *match; |
| 990 | struct resource *res; |
| 991 | int irq; |
Eduardo Valentin | 2633ad1 | 2016-03-09 13:10:28 -0800 | [diff] [blame] | 992 | int i; |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 993 | int error; |
| 994 | |
| 995 | match = of_match_node(of_rockchip_thermal_match, np); |
| 996 | if (!match) |
| 997 | return -ENXIO; |
| 998 | |
| 999 | irq = platform_get_irq(pdev, 0); |
| 1000 | if (irq < 0) { |
| 1001 | dev_err(&pdev->dev, "no irq resource?\n"); |
| 1002 | return -EINVAL; |
| 1003 | } |
| 1004 | |
| 1005 | thermal = devm_kzalloc(&pdev->dev, sizeof(struct rockchip_thermal_data), |
| 1006 | GFP_KERNEL); |
| 1007 | if (!thermal) |
| 1008 | return -ENOMEM; |
| 1009 | |
| 1010 | thermal->pdev = pdev; |
| 1011 | |
| 1012 | thermal->chip = (const struct rockchip_tsadc_chip *)match->data; |
| 1013 | if (!thermal->chip) |
| 1014 | return -EINVAL; |
| 1015 | |
| 1016 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 1017 | thermal->regs = devm_ioremap_resource(&pdev->dev, res); |
| 1018 | if (IS_ERR(thermal->regs)) |
| 1019 | return PTR_ERR(thermal->regs); |
| 1020 | |
| 1021 | thermal->reset = devm_reset_control_get(&pdev->dev, "tsadc-apb"); |
| 1022 | if (IS_ERR(thermal->reset)) { |
| 1023 | error = PTR_ERR(thermal->reset); |
| 1024 | dev_err(&pdev->dev, "failed to get tsadc reset: %d\n", error); |
| 1025 | return error; |
| 1026 | } |
| 1027 | |
| 1028 | thermal->clk = devm_clk_get(&pdev->dev, "tsadc"); |
| 1029 | if (IS_ERR(thermal->clk)) { |
| 1030 | error = PTR_ERR(thermal->clk); |
| 1031 | dev_err(&pdev->dev, "failed to get tsadc clock: %d\n", error); |
| 1032 | return error; |
| 1033 | } |
| 1034 | |
| 1035 | thermal->pclk = devm_clk_get(&pdev->dev, "apb_pclk"); |
| 1036 | if (IS_ERR(thermal->pclk)) { |
Dan Carpenter | 0d0a2bf | 2015-04-21 12:34:10 +0300 | [diff] [blame] | 1037 | error = PTR_ERR(thermal->pclk); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1038 | dev_err(&pdev->dev, "failed to get apb_pclk clock: %d\n", |
| 1039 | error); |
| 1040 | return error; |
| 1041 | } |
| 1042 | |
| 1043 | error = clk_prepare_enable(thermal->clk); |
| 1044 | if (error) { |
| 1045 | dev_err(&pdev->dev, "failed to enable converter clock: %d\n", |
| 1046 | error); |
| 1047 | return error; |
| 1048 | } |
| 1049 | |
| 1050 | error = clk_prepare_enable(thermal->pclk); |
| 1051 | if (error) { |
| 1052 | dev_err(&pdev->dev, "failed to enable pclk: %d\n", error); |
| 1053 | goto err_disable_clk; |
| 1054 | } |
| 1055 | |
| 1056 | rockchip_thermal_reset_controller(thermal->reset); |
| 1057 | |
| 1058 | error = rockchip_configure_from_dt(&pdev->dev, np, thermal); |
| 1059 | if (error) { |
| 1060 | dev_err(&pdev->dev, "failed to parse device tree data: %d\n", |
| 1061 | error); |
| 1062 | goto err_disable_pclk; |
| 1063 | } |
| 1064 | |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 1065 | thermal->chip->initialize(thermal->grf, thermal->regs, |
| 1066 | thermal->tshut_polarity); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1067 | |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 1068 | for (i = 0; i < thermal->chip->chn_num; i++) { |
| 1069 | error = rockchip_thermal_register_sensor(pdev, thermal, |
| 1070 | &thermal->sensors[i], |
| 1071 | thermal->chip->chn_id[i]); |
| 1072 | if (error) { |
| 1073 | dev_err(&pdev->dev, |
| 1074 | "failed to register sensor[%d] : error = %d\n", |
| 1075 | i, error); |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 1076 | goto err_disable_pclk; |
| 1077 | } |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1078 | } |
| 1079 | |
| 1080 | error = devm_request_threaded_irq(&pdev->dev, irq, NULL, |
| 1081 | &rockchip_thermal_alarm_irq_thread, |
| 1082 | IRQF_ONESHOT, |
| 1083 | "rockchip_thermal", thermal); |
| 1084 | if (error) { |
| 1085 | dev_err(&pdev->dev, |
| 1086 | "failed to request tsadc irq: %d\n", error); |
Eduardo Valentin | 2633ad1 | 2016-03-09 13:10:28 -0800 | [diff] [blame] | 1087 | goto err_disable_pclk; |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1088 | } |
| 1089 | |
| 1090 | thermal->chip->control(thermal->regs, true); |
| 1091 | |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 1092 | for (i = 0; i < thermal->chip->chn_num; i++) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1093 | rockchip_thermal_toggle_sensor(&thermal->sensors[i], true); |
| 1094 | |
| 1095 | platform_set_drvdata(pdev, thermal); |
| 1096 | |
| 1097 | return 0; |
| 1098 | |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1099 | err_disable_pclk: |
| 1100 | clk_disable_unprepare(thermal->pclk); |
| 1101 | err_disable_clk: |
| 1102 | clk_disable_unprepare(thermal->clk); |
| 1103 | |
| 1104 | return error; |
| 1105 | } |
| 1106 | |
| 1107 | static int rockchip_thermal_remove(struct platform_device *pdev) |
| 1108 | { |
| 1109 | struct rockchip_thermal_data *thermal = platform_get_drvdata(pdev); |
| 1110 | int i; |
| 1111 | |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 1112 | for (i = 0; i < thermal->chip->chn_num; i++) { |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1113 | struct rockchip_thermal_sensor *sensor = &thermal->sensors[i]; |
| 1114 | |
| 1115 | rockchip_thermal_toggle_sensor(sensor, false); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1116 | } |
| 1117 | |
| 1118 | thermal->chip->control(thermal->regs, false); |
| 1119 | |
| 1120 | clk_disable_unprepare(thermal->pclk); |
| 1121 | clk_disable_unprepare(thermal->clk); |
| 1122 | |
| 1123 | return 0; |
| 1124 | } |
| 1125 | |
| 1126 | static int __maybe_unused rockchip_thermal_suspend(struct device *dev) |
| 1127 | { |
| 1128 | struct platform_device *pdev = to_platform_device(dev); |
| 1129 | struct rockchip_thermal_data *thermal = platform_get_drvdata(pdev); |
| 1130 | int i; |
| 1131 | |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 1132 | for (i = 0; i < thermal->chip->chn_num; i++) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1133 | rockchip_thermal_toggle_sensor(&thermal->sensors[i], false); |
| 1134 | |
| 1135 | thermal->chip->control(thermal->regs, false); |
| 1136 | |
| 1137 | clk_disable(thermal->pclk); |
| 1138 | clk_disable(thermal->clk); |
| 1139 | |
Caesar Wang | 7e38a5b | 2015-10-23 19:25:27 +0800 | [diff] [blame] | 1140 | pinctrl_pm_select_sleep_state(dev); |
| 1141 | |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1142 | return 0; |
| 1143 | } |
| 1144 | |
| 1145 | static int __maybe_unused rockchip_thermal_resume(struct device *dev) |
| 1146 | { |
| 1147 | struct platform_device *pdev = to_platform_device(dev); |
| 1148 | struct rockchip_thermal_data *thermal = platform_get_drvdata(pdev); |
| 1149 | int i; |
| 1150 | int error; |
| 1151 | |
| 1152 | error = clk_enable(thermal->clk); |
| 1153 | if (error) |
| 1154 | return error; |
| 1155 | |
| 1156 | error = clk_enable(thermal->pclk); |
Shawn Lin | ab5b52f | 2016-04-18 11:35:53 +0800 | [diff] [blame] | 1157 | if (error) { |
| 1158 | clk_disable(thermal->clk); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1159 | return error; |
Shawn Lin | ab5b52f | 2016-04-18 11:35:53 +0800 | [diff] [blame] | 1160 | } |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1161 | |
| 1162 | rockchip_thermal_reset_controller(thermal->reset); |
| 1163 | |
Caesar Wang | b948476 | 2016-04-18 11:35:56 +0800 | [diff] [blame] | 1164 | thermal->chip->initialize(thermal->grf, thermal->regs, |
| 1165 | thermal->tshut_polarity); |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1166 | |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 1167 | for (i = 0; i < thermal->chip->chn_num; i++) { |
| 1168 | int id = thermal->sensors[i].id; |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1169 | |
| 1170 | thermal->chip->set_tshut_mode(id, thermal->regs, |
| 1171 | thermal->tshut_mode); |
Caesar Wang | ce74110 | 2015-11-09 12:48:56 +0800 | [diff] [blame] | 1172 | thermal->chip->set_tshut_temp(thermal->chip->table, |
| 1173 | id, thermal->regs, |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1174 | thermal->tshut_temp); |
| 1175 | } |
| 1176 | |
| 1177 | thermal->chip->control(thermal->regs, true); |
| 1178 | |
Caesar Wang | 1d98b61 | 2015-11-05 13:17:58 +0800 | [diff] [blame] | 1179 | for (i = 0; i < thermal->chip->chn_num; i++) |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1180 | rockchip_thermal_toggle_sensor(&thermal->sensors[i], true); |
| 1181 | |
Caesar Wang | 7e38a5b | 2015-10-23 19:25:27 +0800 | [diff] [blame] | 1182 | pinctrl_pm_select_default_state(dev); |
| 1183 | |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1184 | return 0; |
| 1185 | } |
| 1186 | |
| 1187 | static SIMPLE_DEV_PM_OPS(rockchip_thermal_pm_ops, |
| 1188 | rockchip_thermal_suspend, rockchip_thermal_resume); |
| 1189 | |
| 1190 | static struct platform_driver rockchip_thermal_driver = { |
| 1191 | .driver = { |
| 1192 | .name = "rockchip-thermal", |
Caesar Wang | cbac8f63 | 2014-11-24 12:58:59 +0800 | [diff] [blame] | 1193 | .pm = &rockchip_thermal_pm_ops, |
| 1194 | .of_match_table = of_rockchip_thermal_match, |
| 1195 | }, |
| 1196 | .probe = rockchip_thermal_probe, |
| 1197 | .remove = rockchip_thermal_remove, |
| 1198 | }; |
| 1199 | |
| 1200 | module_platform_driver(rockchip_thermal_driver); |
| 1201 | |
| 1202 | MODULE_DESCRIPTION("ROCKCHIP THERMAL Driver"); |
| 1203 | MODULE_AUTHOR("Rockchip, Inc."); |
| 1204 | MODULE_LICENSE("GPL v2"); |
| 1205 | MODULE_ALIAS("platform:rockchip-thermal"); |