From 5e3aac197a74914ccec2732a89c29d960730d28f Mon Sep 17 00:00:00 2001 From: Balsam CHIHI Date: Thu, 9 Feb 2023 11:56:23 +0100 Subject: [PATCH 05/42] thermal/drivers/mediatek: Relocate driver to mediatek folder Add MediaTek proprietary folder to upstream more thermal zone and cooler drivers, relocate the original thermal controller driver to it, and rename it as "auxadc_thermal.c" to show its purpose more clearly. Signed-off-by: Balsam CHIHI Reviewed-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/20230209105628.50294-2-bchihi@baylibre.com Signed-off-by: Daniel Lezcano Signed-off-by: Rafael J. Wysocki --- drivers/thermal/Kconfig | 14 ++++--------- drivers/thermal/Makefile | 2 +- drivers/thermal/mediatek/Kconfig | 21 +++++++++++++++++++ drivers/thermal/mediatek/Makefile | 1 + .../auxadc_thermal.c} | 2 +- 5 files changed, 28 insertions(+), 12 deletions(-) create mode 100644 drivers/thermal/mediatek/Kconfig create mode 100644 drivers/thermal/mediatek/Makefile rename drivers/thermal/{mtk_thermal.c => mediatek/auxadc_thermal.c} (99%) --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -412,16 +412,10 @@ config DA9062_THERMAL zone. Compatible with the DA9062 and DA9061 PMICs. -config MTK_THERMAL - tristate "Temperature sensor driver for mediatek SoCs" - depends on ARCH_MEDIATEK || COMPILE_TEST - depends on HAS_IOMEM - depends on NVMEM || NVMEM=n - depends on RESET_CONTROLLER - default y - help - Enable this option if you want to have support for thermal management - controller present in Mediatek SoCs +menu "Mediatek thermal drivers" +depends on ARCH_MEDIATEK || COMPILE_TEST +source "drivers/thermal/mediatek/Kconfig" +endmenu config AMLOGIC_THERMAL tristate "Amlogic Thermal Support" --- a/drivers/thermal/Makefile +++ b/drivers/thermal/Makefile @@ -55,7 +55,7 @@ obj-y += st/ obj-y += qcom/ obj-y += tegra/ obj-$(CONFIG_HISI_THERMAL) += hisi_thermal.o -obj-$(CONFIG_MTK_THERMAL) += mtk_thermal.o +obj-y += mediatek/ obj-$(CONFIG_GENERIC_ADC_THERMAL) += thermal-generic-adc.o obj-$(CONFIG_UNIPHIER_THERMAL) += uniphier_thermal.o obj-$(CONFIG_AMLOGIC_THERMAL) += amlogic_thermal.o --- /dev/null +++ b/drivers/thermal/mediatek/Kconfig @@ -0,0 +1,21 @@ +config MTK_THERMAL + tristate "MediaTek thermal drivers" + depends on THERMAL_OF + help + This is the option for MediaTek thermal software solutions. + Please enable corresponding options to get temperature + information from thermal sensors or turn on throttle + mechaisms for thermal mitigation. + +if MTK_THERMAL + +config MTK_SOC_THERMAL + tristate "AUXADC temperature sensor driver for MediaTek SoCs" + depends on HAS_IOMEM + help + Enable this option if you want to get SoC temperature + information for MediaTek platforms. + This driver configures thermal controllers to collect + temperature via AUXADC interface. + +endif --- /dev/null +++ b/drivers/thermal/mediatek/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_MTK_SOC_THERMAL) += auxadc_thermal.o --- a/drivers/thermal/mtk_thermal.c +++ /dev/null @@ -1,1254 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (c) 2015 MediaTek Inc. - * Author: Hanyi Wu - * Sascha Hauer - * Dawei Chien - * Louis Yu - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "thermal_hwmon.h" - -/* AUXADC Registers */ -#define AUXADC_CON1_SET_V 0x008 -#define AUXADC_CON1_CLR_V 0x00c -#define AUXADC_CON2_V 0x010 -#define AUXADC_DATA(channel) (0x14 + (channel) * 4) - -#define APMIXED_SYS_TS_CON1 0x604 - -/* Thermal Controller Registers */ -#define TEMP_MONCTL0 0x000 -#define TEMP_MONCTL1 0x004 -#define TEMP_MONCTL2 0x008 -#define TEMP_MONIDET0 0x014 -#define TEMP_MONIDET1 0x018 -#define TEMP_MSRCTL0 0x038 -#define TEMP_MSRCTL1 0x03c -#define TEMP_AHBPOLL 0x040 -#define TEMP_AHBTO 0x044 -#define TEMP_ADCPNP0 0x048 -#define TEMP_ADCPNP1 0x04c -#define TEMP_ADCPNP2 0x050 -#define TEMP_ADCPNP3 0x0b4 - -#define TEMP_ADCMUX 0x054 -#define TEMP_ADCEN 0x060 -#define TEMP_PNPMUXADDR 0x064 -#define TEMP_ADCMUXADDR 0x068 -#define TEMP_ADCENADDR 0x074 -#define TEMP_ADCVALIDADDR 0x078 -#define TEMP_ADCVOLTADDR 0x07c -#define TEMP_RDCTRL 0x080 -#define TEMP_ADCVALIDMASK 0x084 -#define TEMP_ADCVOLTAGESHIFT 0x088 -#define TEMP_ADCWRITECTRL 0x08c -#define TEMP_MSR0 0x090 -#define TEMP_MSR1 0x094 -#define TEMP_MSR2 0x098 -#define TEMP_MSR3 0x0B8 - -#define TEMP_SPARE0 0x0f0 - -#define TEMP_ADCPNP0_1 0x148 -#define TEMP_ADCPNP1_1 0x14c -#define TEMP_ADCPNP2_1 0x150 -#define TEMP_MSR0_1 0x190 -#define TEMP_MSR1_1 0x194 -#define TEMP_MSR2_1 0x198 -#define TEMP_ADCPNP3_1 0x1b4 -#define TEMP_MSR3_1 0x1B8 - -#define PTPCORESEL 0x400 - -#define TEMP_MONCTL1_PERIOD_UNIT(x) ((x) & 0x3ff) - -#define TEMP_MONCTL2_FILTER_INTERVAL(x) (((x) & 0x3ff) << 16) -#define TEMP_MONCTL2_SENSOR_INTERVAL(x) ((x) & 0x3ff) - -#define TEMP_AHBPOLL_ADC_POLL_INTERVAL(x) (x) - -#define TEMP_ADCWRITECTRL_ADC_PNP_WRITE BIT(0) -#define TEMP_ADCWRITECTRL_ADC_MUX_WRITE BIT(1) - -#define TEMP_ADCVALIDMASK_VALID_HIGH BIT(5) -#define TEMP_ADCVALIDMASK_VALID_POS(bit) (bit) - -/* MT8173 thermal sensors */ -#define MT8173_TS1 0 -#define MT8173_TS2 1 -#define MT8173_TS3 2 -#define MT8173_TS4 3 -#define MT8173_TSABB 4 - -/* AUXADC channel 11 is used for the temperature sensors */ -#define MT8173_TEMP_AUXADC_CHANNEL 11 - -/* The total number of temperature sensors in the MT8173 */ -#define MT8173_NUM_SENSORS 5 - -/* The number of banks in the MT8173 */ -#define MT8173_NUM_ZONES 4 - -/* The number of sensing points per bank */ -#define MT8173_NUM_SENSORS_PER_ZONE 4 - -/* The number of controller in the MT8173 */ -#define MT8173_NUM_CONTROLLER 1 - -/* The calibration coefficient of sensor */ -#define MT8173_CALIBRATION 165 - -/* - * Layout of the fuses providing the calibration data - * These macros could be used for MT8183, MT8173, MT2701, and MT2712. - * MT8183 has 6 sensors and needs 6 VTS calibration data. - * MT8173 has 5 sensors and needs 5 VTS calibration data. - * MT2701 has 3 sensors and needs 3 VTS calibration data. - * MT2712 has 4 sensors and needs 4 VTS calibration data. - */ -#define CALIB_BUF0_VALID_V1 BIT(0) -#define CALIB_BUF1_ADC_GE_V1(x) (((x) >> 22) & 0x3ff) -#define CALIB_BUF0_VTS_TS1_V1(x) (((x) >> 17) & 0x1ff) -#define CALIB_BUF0_VTS_TS2_V1(x) (((x) >> 8) & 0x1ff) -#define CALIB_BUF1_VTS_TS3_V1(x) (((x) >> 0) & 0x1ff) -#define CALIB_BUF2_VTS_TS4_V1(x) (((x) >> 23) & 0x1ff) -#define CALIB_BUF2_VTS_TS5_V1(x) (((x) >> 5) & 0x1ff) -#define CALIB_BUF2_VTS_TSABB_V1(x) (((x) >> 14) & 0x1ff) -#define CALIB_BUF0_DEGC_CALI_V1(x) (((x) >> 1) & 0x3f) -#define CALIB_BUF0_O_SLOPE_V1(x) (((x) >> 26) & 0x3f) -#define CALIB_BUF0_O_SLOPE_SIGN_V1(x) (((x) >> 7) & 0x1) -#define CALIB_BUF1_ID_V1(x) (((x) >> 9) & 0x1) - -/* - * Layout of the fuses providing the calibration data - * These macros could be used for MT7622. - */ -#define CALIB_BUF0_ADC_OE_V2(x) (((x) >> 22) & 0x3ff) -#define CALIB_BUF0_ADC_GE_V2(x) (((x) >> 12) & 0x3ff) -#define CALIB_BUF0_DEGC_CALI_V2(x) (((x) >> 6) & 0x3f) -#define CALIB_BUF0_O_SLOPE_V2(x) (((x) >> 0) & 0x3f) -#define CALIB_BUF1_VTS_TS1_V2(x) (((x) >> 23) & 0x1ff) -#define CALIB_BUF1_VTS_TS2_V2(x) (((x) >> 14) & 0x1ff) -#define CALIB_BUF1_VTS_TSABB_V2(x) (((x) >> 5) & 0x1ff) -#define CALIB_BUF1_VALID_V2(x) (((x) >> 4) & 0x1) -#define CALIB_BUF1_O_SLOPE_SIGN_V2(x) (((x) >> 3) & 0x1) - -/* - * Layout of the fuses providing the calibration data - * These macros can be used for MT7981 and MT7986. - */ -#define CALIB_BUF0_ADC_GE_V3(x) (((x) >> 0) & 0x3ff) -#define CALIB_BUF0_DEGC_CALI_V3(x) (((x) >> 20) & 0x3f) -#define CALIB_BUF0_O_SLOPE_V3(x) (((x) >> 26) & 0x3f) -#define CALIB_BUF1_VTS_TS1_V3(x) (((x) >> 0) & 0x1ff) -#define CALIB_BUF1_VTS_TS2_V3(x) (((x) >> 21) & 0x1ff) -#define CALIB_BUF1_VTS_TSABB_V3(x) (((x) >> 9) & 0x1ff) -#define CALIB_BUF1_VALID_V3(x) (((x) >> 18) & 0x1) -#define CALIB_BUF1_O_SLOPE_SIGN_V3(x) (((x) >> 19) & 0x1) -#define CALIB_BUF1_ID_V3(x) (((x) >> 20) & 0x1) - -enum { - VTS1, - VTS2, - VTS3, - VTS4, - VTS5, - VTSABB, - MAX_NUM_VTS, -}; - -enum mtk_thermal_version { - MTK_THERMAL_V1 = 1, - MTK_THERMAL_V2, - MTK_THERMAL_V3, -}; - -/* MT2701 thermal sensors */ -#define MT2701_TS1 0 -#define MT2701_TS2 1 -#define MT2701_TSABB 2 - -/* AUXADC channel 11 is used for the temperature sensors */ -#define MT2701_TEMP_AUXADC_CHANNEL 11 - -/* The total number of temperature sensors in the MT2701 */ -#define MT2701_NUM_SENSORS 3 - -/* The number of sensing points per bank */ -#define MT2701_NUM_SENSORS_PER_ZONE 3 - -/* The number of controller in the MT2701 */ -#define MT2701_NUM_CONTROLLER 1 - -/* The calibration coefficient of sensor */ -#define MT2701_CALIBRATION 165 - -/* MT2712 thermal sensors */ -#define MT2712_TS1 0 -#define MT2712_TS2 1 -#define MT2712_TS3 2 -#define MT2712_TS4 3 - -/* AUXADC channel 11 is used for the temperature sensors */ -#define MT2712_TEMP_AUXADC_CHANNEL 11 - -/* The total number of temperature sensors in the MT2712 */ -#define MT2712_NUM_SENSORS 4 - -/* The number of sensing points per bank */ -#define MT2712_NUM_SENSORS_PER_ZONE 4 - -/* The number of controller in the MT2712 */ -#define MT2712_NUM_CONTROLLER 1 - -/* The calibration coefficient of sensor */ -#define MT2712_CALIBRATION 165 - -#define MT7622_TEMP_AUXADC_CHANNEL 11 -#define MT7622_NUM_SENSORS 1 -#define MT7622_NUM_ZONES 1 -#define MT7622_NUM_SENSORS_PER_ZONE 1 -#define MT7622_TS1 0 -#define MT7622_NUM_CONTROLLER 1 - -/* The maximum number of banks */ -#define MAX_NUM_ZONES 8 - -/* The calibration coefficient of sensor */ -#define MT7622_CALIBRATION 165 - -/* MT8183 thermal sensors */ -#define MT8183_TS1 0 -#define MT8183_TS2 1 -#define MT8183_TS3 2 -#define MT8183_TS4 3 -#define MT8183_TS5 4 -#define MT8183_TSABB 5 - -/* AUXADC channel is used for the temperature sensors */ -#define MT8183_TEMP_AUXADC_CHANNEL 11 - -/* The total number of temperature sensors in the MT8183 */ -#define MT8183_NUM_SENSORS 6 - -/* The number of banks in the MT8183 */ -#define MT8183_NUM_ZONES 1 - -/* The number of sensing points per bank */ -#define MT8183_NUM_SENSORS_PER_ZONE 6 - -/* The number of controller in the MT8183 */ -#define MT8183_NUM_CONTROLLER 2 - -/* The calibration coefficient of sensor */ -#define MT8183_CALIBRATION 153 - -/* AUXADC channel 11 is used for the temperature sensors */ -#define MT7986_TEMP_AUXADC_CHANNEL 11 - -/* The total number of temperature sensors in the MT7986 */ -#define MT7986_NUM_SENSORS 1 - -/* The number of banks in the MT7986 */ -#define MT7986_NUM_ZONES 1 - -/* The number of sensing points per bank */ -#define MT7986_NUM_SENSORS_PER_ZONE 1 - -/* MT7986 thermal sensors */ -#define MT7986_TS1 0 - -/* The number of controller in the MT7986 */ -#define MT7986_NUM_CONTROLLER 1 - -/* The calibration coefficient of sensor */ -#define MT7986_CALIBRATION 165 - -struct mtk_thermal; - -struct thermal_bank_cfg { - unsigned int num_sensors; - const int *sensors; -}; - -struct mtk_thermal_bank { - struct mtk_thermal *mt; - int id; -}; - -struct mtk_thermal_data { - s32 num_banks; - s32 num_sensors; - s32 auxadc_channel; - const int *vts_index; - const int *sensor_mux_values; - const int *msr; - const int *adcpnp; - const int cali_val; - const int num_controller; - const int *controller_offset; - bool need_switch_bank; - struct thermal_bank_cfg bank_data[MAX_NUM_ZONES]; - enum mtk_thermal_version version; -}; - -struct mtk_thermal { - struct device *dev; - void __iomem *thermal_base; - - struct clk *clk_peri_therm; - struct clk *clk_auxadc; - /* lock: for getting and putting banks */ - struct mutex lock; - - /* Calibration values */ - s32 adc_ge; - s32 adc_oe; - s32 degc_cali; - s32 o_slope; - s32 o_slope_sign; - s32 vts[MAX_NUM_VTS]; - - const struct mtk_thermal_data *conf; - struct mtk_thermal_bank banks[MAX_NUM_ZONES]; - - int (*raw_to_mcelsius)(struct mtk_thermal *mt, int sensno, s32 raw); -}; - -/* MT8183 thermal sensor data */ -static const int mt8183_bank_data[MT8183_NUM_SENSORS] = { - MT8183_TS1, MT8183_TS2, MT8183_TS3, MT8183_TS4, MT8183_TS5, MT8183_TSABB -}; - -static const int mt8183_msr[MT8183_NUM_SENSORS_PER_ZONE] = { - TEMP_MSR0_1, TEMP_MSR1_1, TEMP_MSR2_1, TEMP_MSR1, TEMP_MSR0, TEMP_MSR3_1 -}; - -static const int mt8183_adcpnp[MT8183_NUM_SENSORS_PER_ZONE] = { - TEMP_ADCPNP0_1, TEMP_ADCPNP1_1, TEMP_ADCPNP2_1, - TEMP_ADCPNP1, TEMP_ADCPNP0, TEMP_ADCPNP3_1 -}; - -static const int mt8183_mux_values[MT8183_NUM_SENSORS] = { 0, 1, 2, 3, 4, 0 }; -static const int mt8183_tc_offset[MT8183_NUM_CONTROLLER] = {0x0, 0x100}; - -static const int mt8183_vts_index[MT8183_NUM_SENSORS] = { - VTS1, VTS2, VTS3, VTS4, VTS5, VTSABB -}; - -/* MT8173 thermal sensor data */ -static const int mt8173_bank_data[MT8173_NUM_ZONES][3] = { - { MT8173_TS2, MT8173_TS3 }, - { MT8173_TS2, MT8173_TS4 }, - { MT8173_TS1, MT8173_TS2, MT8173_TSABB }, - { MT8173_TS2 }, -}; - -static const int mt8173_msr[MT8173_NUM_SENSORS_PER_ZONE] = { - TEMP_MSR0, TEMP_MSR1, TEMP_MSR2, TEMP_MSR3 -}; - -static const int mt8173_adcpnp[MT8173_NUM_SENSORS_PER_ZONE] = { - TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2, TEMP_ADCPNP3 -}; - -static const int mt8173_mux_values[MT8173_NUM_SENSORS] = { 0, 1, 2, 3, 16 }; -static const int mt8173_tc_offset[MT8173_NUM_CONTROLLER] = { 0x0, }; - -static const int mt8173_vts_index[MT8173_NUM_SENSORS] = { - VTS1, VTS2, VTS3, VTS4, VTSABB -}; - -/* MT2701 thermal sensor data */ -static const int mt2701_bank_data[MT2701_NUM_SENSORS] = { - MT2701_TS1, MT2701_TS2, MT2701_TSABB -}; - -static const int mt2701_msr[MT2701_NUM_SENSORS_PER_ZONE] = { - TEMP_MSR0, TEMP_MSR1, TEMP_MSR2 -}; - -static const int mt2701_adcpnp[MT2701_NUM_SENSORS_PER_ZONE] = { - TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2 -}; - -static const int mt2701_mux_values[MT2701_NUM_SENSORS] = { 0, 1, 16 }; -static const int mt2701_tc_offset[MT2701_NUM_CONTROLLER] = { 0x0, }; - -static const int mt2701_vts_index[MT2701_NUM_SENSORS] = { - VTS1, VTS2, VTS3 -}; - -/* MT2712 thermal sensor data */ -static const int mt2712_bank_data[MT2712_NUM_SENSORS] = { - MT2712_TS1, MT2712_TS2, MT2712_TS3, MT2712_TS4 -}; - -static const int mt2712_msr[MT2712_NUM_SENSORS_PER_ZONE] = { - TEMP_MSR0, TEMP_MSR1, TEMP_MSR2, TEMP_MSR3 -}; - -static const int mt2712_adcpnp[MT2712_NUM_SENSORS_PER_ZONE] = { - TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2, TEMP_ADCPNP3 -}; - -static const int mt2712_mux_values[MT2712_NUM_SENSORS] = { 0, 1, 2, 3 }; -static const int mt2712_tc_offset[MT2712_NUM_CONTROLLER] = { 0x0, }; - -static const int mt2712_vts_index[MT2712_NUM_SENSORS] = { - VTS1, VTS2, VTS3, VTS4 -}; - -/* MT7622 thermal sensor data */ -static const int mt7622_bank_data[MT7622_NUM_SENSORS] = { MT7622_TS1, }; -static const int mt7622_msr[MT7622_NUM_SENSORS_PER_ZONE] = { TEMP_MSR0, }; -static const int mt7622_adcpnp[MT7622_NUM_SENSORS_PER_ZONE] = { TEMP_ADCPNP0, }; -static const int mt7622_mux_values[MT7622_NUM_SENSORS] = { 0, }; -static const int mt7622_vts_index[MT7622_NUM_SENSORS] = { VTS1 }; -static const int mt7622_tc_offset[MT7622_NUM_CONTROLLER] = { 0x0, }; - -/* MT7986 thermal sensor data */ -static const int mt7986_bank_data[MT7986_NUM_SENSORS] = { MT7986_TS1, }; -static const int mt7986_msr[MT7986_NUM_SENSORS_PER_ZONE] = { TEMP_MSR0, }; -static const int mt7986_adcpnp[MT7986_NUM_SENSORS_PER_ZONE] = { TEMP_ADCPNP0, }; -static const int mt7986_mux_values[MT7986_NUM_SENSORS] = { 0, }; -static const int mt7986_vts_index[MT7986_NUM_SENSORS] = { VTS1 }; -static const int mt7986_tc_offset[MT7986_NUM_CONTROLLER] = { 0x0, }; - -/* - * The MT8173 thermal controller has four banks. Each bank can read up to - * four temperature sensors simultaneously. The MT8173 has a total of 5 - * temperature sensors. We use each bank to measure a certain area of the - * SoC. Since TS2 is located centrally in the SoC it is influenced by multiple - * areas, hence is used in different banks. - * - * The thermal core only gets the maximum temperature of all banks, so - * the bank concept wouldn't be necessary here. However, the SVS (Smart - * Voltage Scaling) unit makes its decisions based on the same bank - * data, and this indeed needs the temperatures of the individual banks - * for making better decisions. - */ -static const struct mtk_thermal_data mt8173_thermal_data = { - .auxadc_channel = MT8173_TEMP_AUXADC_CHANNEL, - .num_banks = MT8173_NUM_ZONES, - .num_sensors = MT8173_NUM_SENSORS, - .vts_index = mt8173_vts_index, - .cali_val = MT8173_CALIBRATION, - .num_controller = MT8173_NUM_CONTROLLER, - .controller_offset = mt8173_tc_offset, - .need_switch_bank = true, - .bank_data = { - { - .num_sensors = 2, - .sensors = mt8173_bank_data[0], - }, { - .num_sensors = 2, - .sensors = mt8173_bank_data[1], - }, { - .num_sensors = 3, - .sensors = mt8173_bank_data[2], - }, { - .num_sensors = 1, - .sensors = mt8173_bank_data[3], - }, - }, - .msr = mt8173_msr, - .adcpnp = mt8173_adcpnp, - .sensor_mux_values = mt8173_mux_values, - .version = MTK_THERMAL_V1, -}; - -/* - * The MT2701 thermal controller has one bank, which can read up to - * three temperature sensors simultaneously. The MT2701 has a total of 3 - * temperature sensors. - * - * The thermal core only gets the maximum temperature of this one bank, - * so the bank concept wouldn't be necessary here. However, the SVS (Smart - * Voltage Scaling) unit makes its decisions based on the same bank - * data. - */ -static const struct mtk_thermal_data mt2701_thermal_data = { - .auxadc_channel = MT2701_TEMP_AUXADC_CHANNEL, - .num_banks = 1, - .num_sensors = MT2701_NUM_SENSORS, - .vts_index = mt2701_vts_index, - .cali_val = MT2701_CALIBRATION, - .num_controller = MT2701_NUM_CONTROLLER, - .controller_offset = mt2701_tc_offset, - .need_switch_bank = true, - .bank_data = { - { - .num_sensors = 3, - .sensors = mt2701_bank_data, - }, - }, - .msr = mt2701_msr, - .adcpnp = mt2701_adcpnp, - .sensor_mux_values = mt2701_mux_values, - .version = MTK_THERMAL_V1, -}; - -/* - * The MT2712 thermal controller has one bank, which can read up to - * four temperature sensors simultaneously. The MT2712 has a total of 4 - * temperature sensors. - * - * The thermal core only gets the maximum temperature of this one bank, - * so the bank concept wouldn't be necessary here. However, the SVS (Smart - * Voltage Scaling) unit makes its decisions based on the same bank - * data. - */ -static const struct mtk_thermal_data mt2712_thermal_data = { - .auxadc_channel = MT2712_TEMP_AUXADC_CHANNEL, - .num_banks = 1, - .num_sensors = MT2712_NUM_SENSORS, - .vts_index = mt2712_vts_index, - .cali_val = MT2712_CALIBRATION, - .num_controller = MT2712_NUM_CONTROLLER, - .controller_offset = mt2712_tc_offset, - .need_switch_bank = true, - .bank_data = { - { - .num_sensors = 4, - .sensors = mt2712_bank_data, - }, - }, - .msr = mt2712_msr, - .adcpnp = mt2712_adcpnp, - .sensor_mux_values = mt2712_mux_values, - .version = MTK_THERMAL_V1, -}; - -/* - * MT7622 have only one sensing point which uses AUXADC Channel 11 for raw data - * access. - */ -static const struct mtk_thermal_data mt7622_thermal_data = { - .auxadc_channel = MT7622_TEMP_AUXADC_CHANNEL, - .num_banks = MT7622_NUM_ZONES, - .num_sensors = MT7622_NUM_SENSORS, - .vts_index = mt7622_vts_index, - .cali_val = MT7622_CALIBRATION, - .num_controller = MT7622_NUM_CONTROLLER, - .controller_offset = mt7622_tc_offset, - .need_switch_bank = true, - .bank_data = { - { - .num_sensors = 1, - .sensors = mt7622_bank_data, - }, - }, - .msr = mt7622_msr, - .adcpnp = mt7622_adcpnp, - .sensor_mux_values = mt7622_mux_values, - .version = MTK_THERMAL_V2, -}; - -/* - * The MT8183 thermal controller has one bank for the current SW framework. - * The MT8183 has a total of 6 temperature sensors. - * There are two thermal controller to control the six sensor. - * The first one bind 2 sensor, and the other bind 4 sensors. - * The thermal core only gets the maximum temperature of all sensor, so - * the bank concept wouldn't be necessary here. However, the SVS (Smart - * Voltage Scaling) unit makes its decisions based on the same bank - * data, and this indeed needs the temperatures of the individual banks - * for making better decisions. - */ -static const struct mtk_thermal_data mt8183_thermal_data = { - .auxadc_channel = MT8183_TEMP_AUXADC_CHANNEL, - .num_banks = MT8183_NUM_ZONES, - .num_sensors = MT8183_NUM_SENSORS, - .vts_index = mt8183_vts_index, - .cali_val = MT8183_CALIBRATION, - .num_controller = MT8183_NUM_CONTROLLER, - .controller_offset = mt8183_tc_offset, - .need_switch_bank = false, - .bank_data = { - { - .num_sensors = 6, - .sensors = mt8183_bank_data, - }, - }, - - .msr = mt8183_msr, - .adcpnp = mt8183_adcpnp, - .sensor_mux_values = mt8183_mux_values, - .version = MTK_THERMAL_V1, -}; - -/* - * MT7986 uses AUXADC Channel 11 for raw data access. - */ -static const struct mtk_thermal_data mt7986_thermal_data = { - .auxadc_channel = MT7986_TEMP_AUXADC_CHANNEL, - .num_banks = MT7986_NUM_ZONES, - .num_sensors = MT7986_NUM_SENSORS, - .vts_index = mt7986_vts_index, - .cali_val = MT7986_CALIBRATION, - .num_controller = MT7986_NUM_CONTROLLER, - .controller_offset = mt7986_tc_offset, - .need_switch_bank = true, - .bank_data = { - { - .num_sensors = 1, - .sensors = mt7986_bank_data, - }, - }, - .msr = mt7986_msr, - .adcpnp = mt7986_adcpnp, - .sensor_mux_values = mt7986_mux_values, - .version = MTK_THERMAL_V3, -}; - -/** - * raw_to_mcelsius_v1 - convert a raw ADC value to mcelsius - * @mt: The thermal controller - * @sensno: sensor number - * @raw: raw ADC value - * - * This converts the raw ADC value to mcelsius using the SoC specific - * calibration constants - */ -static int raw_to_mcelsius_v1(struct mtk_thermal *mt, int sensno, s32 raw) -{ - s32 tmp; - - raw &= 0xfff; - - tmp = 203450520 << 3; - tmp /= mt->conf->cali_val + mt->o_slope; - tmp /= 10000 + mt->adc_ge; - tmp *= raw - mt->vts[sensno] - 3350; - tmp >>= 3; - - return mt->degc_cali * 500 - tmp; -} - -static int raw_to_mcelsius_v2(struct mtk_thermal *mt, int sensno, s32 raw) -{ - s32 format_1; - s32 format_2; - s32 g_oe; - s32 g_gain; - s32 g_x_roomt; - s32 tmp; - - if (raw == 0) - return 0; - - raw &= 0xfff; - g_gain = 10000 + (((mt->adc_ge - 512) * 10000) >> 12); - g_oe = mt->adc_oe - 512; - format_1 = mt->vts[VTS2] + 3105 - g_oe; - format_2 = (mt->degc_cali * 10) >> 1; - g_x_roomt = (((format_1 * 10000) >> 12) * 10000) / g_gain; - - tmp = (((((raw - g_oe) * 10000) >> 12) * 10000) / g_gain) - g_x_roomt; - tmp = tmp * 10 * 100 / 11; - - if (mt->o_slope_sign == 0) - tmp = tmp / (165 - mt->o_slope); - else - tmp = tmp / (165 + mt->o_slope); - - return (format_2 - tmp) * 100; -} - -static int raw_to_mcelsius_v3(struct mtk_thermal *mt, int sensno, s32 raw) -{ - s32 tmp; - - if (raw == 0) - return 0; - - raw &= 0xfff; - tmp = 100000 * 15 / 16 * 10000; - tmp /= 4096 - 512 + mt->adc_ge; - tmp /= 1490; - tmp *= raw - mt->vts[sensno] - 2900; - - return mt->degc_cali * 500 - tmp; -} - -/** - * mtk_thermal_get_bank - get bank - * @bank: The bank - * - * The bank registers are banked, we have to select a bank in the - * PTPCORESEL register to access it. - */ -static void mtk_thermal_get_bank(struct mtk_thermal_bank *bank) -{ - struct mtk_thermal *mt = bank->mt; - u32 val; - - if (mt->conf->need_switch_bank) { - mutex_lock(&mt->lock); - - val = readl(mt->thermal_base + PTPCORESEL); - val &= ~0xf; - val |= bank->id; - writel(val, mt->thermal_base + PTPCORESEL); - } -} - -/** - * mtk_thermal_put_bank - release bank - * @bank: The bank - * - * release a bank previously taken with mtk_thermal_get_bank, - */ -static void mtk_thermal_put_bank(struct mtk_thermal_bank *bank) -{ - struct mtk_thermal *mt = bank->mt; - - if (mt->conf->need_switch_bank) - mutex_unlock(&mt->lock); -} - -/** - * mtk_thermal_bank_temperature - get the temperature of a bank - * @bank: The bank - * - * The temperature of a bank is considered the maximum temperature of - * the sensors associated to the bank. - */ -static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank) -{ - struct mtk_thermal *mt = bank->mt; - const struct mtk_thermal_data *conf = mt->conf; - int i, temp = INT_MIN, max = INT_MIN; - u32 raw; - - for (i = 0; i < conf->bank_data[bank->id].num_sensors; i++) { - raw = readl(mt->thermal_base + conf->msr[i]); - - temp = mt->raw_to_mcelsius( - mt, conf->bank_data[bank->id].sensors[i], raw); - - - /* - * The first read of a sensor often contains very high bogus - * temperature value. Filter these out so that the system does - * not immediately shut down. - */ - if (temp > 200000) - temp = 0; - - if (temp > max) - max = temp; - } - - return max; -} - -static int mtk_read_temp(struct thermal_zone_device *tz, int *temperature) -{ - struct mtk_thermal *mt = tz->devdata; - int i; - int tempmax = INT_MIN; - - for (i = 0; i < mt->conf->num_banks; i++) { - struct mtk_thermal_bank *bank = &mt->banks[i]; - - mtk_thermal_get_bank(bank); - - tempmax = max(tempmax, mtk_thermal_bank_temperature(bank)); - - mtk_thermal_put_bank(bank); - } - - *temperature = tempmax; - - return 0; -} - -static const struct thermal_zone_device_ops mtk_thermal_ops = { - .get_temp = mtk_read_temp, -}; - -static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num, - u32 apmixed_phys_base, u32 auxadc_phys_base, - int ctrl_id) -{ - struct mtk_thermal_bank *bank = &mt->banks[num]; - const struct mtk_thermal_data *conf = mt->conf; - int i; - - int offset = mt->conf->controller_offset[ctrl_id]; - void __iomem *controller_base = mt->thermal_base + offset; - - bank->id = num; - bank->mt = mt; - - mtk_thermal_get_bank(bank); - - /* bus clock 66M counting unit is 12 * 15.15ns * 256 = 46.540us */ - writel(TEMP_MONCTL1_PERIOD_UNIT(12), controller_base + TEMP_MONCTL1); - - /* - * filt interval is 1 * 46.540us = 46.54us, - * sen interval is 429 * 46.540us = 19.96ms - */ - writel(TEMP_MONCTL2_FILTER_INTERVAL(1) | - TEMP_MONCTL2_SENSOR_INTERVAL(429), - controller_base + TEMP_MONCTL2); - - /* poll is set to 10u */ - writel(TEMP_AHBPOLL_ADC_POLL_INTERVAL(768), - controller_base + TEMP_AHBPOLL); - - /* temperature sampling control, 1 sample */ - writel(0x0, controller_base + TEMP_MSRCTL0); - - /* exceed this polling time, IRQ would be inserted */ - writel(0xffffffff, controller_base + TEMP_AHBTO); - - /* number of interrupts per event, 1 is enough */ - writel(0x0, controller_base + TEMP_MONIDET0); - writel(0x0, controller_base + TEMP_MONIDET1); - - /* - * The MT8173 thermal controller does not have its own ADC. Instead it - * uses AHB bus accesses to control the AUXADC. To do this the thermal - * controller has to be programmed with the physical addresses of the - * AUXADC registers and with the various bit positions in the AUXADC. - * Also the thermal controller controls a mux in the APMIXEDSYS register - * space. - */ - - /* - * this value will be stored to TEMP_PNPMUXADDR (TEMP_SPARE0) - * automatically by hw - */ - writel(BIT(conf->auxadc_channel), controller_base + TEMP_ADCMUX); - - /* AHB address for auxadc mux selection */ - writel(auxadc_phys_base + AUXADC_CON1_CLR_V, - controller_base + TEMP_ADCMUXADDR); - - if (mt->conf->version == MTK_THERMAL_V1) { - /* AHB address for pnp sensor mux selection */ - writel(apmixed_phys_base + APMIXED_SYS_TS_CON1, - controller_base + TEMP_PNPMUXADDR); - } - - /* AHB value for auxadc enable */ - writel(BIT(conf->auxadc_channel), controller_base + TEMP_ADCEN); - - /* AHB address for auxadc enable (channel 0 immediate mode selected) */ - writel(auxadc_phys_base + AUXADC_CON1_SET_V, - controller_base + TEMP_ADCENADDR); - - /* AHB address for auxadc valid bit */ - writel(auxadc_phys_base + AUXADC_DATA(conf->auxadc_channel), - controller_base + TEMP_ADCVALIDADDR); - - /* AHB address for auxadc voltage output */ - writel(auxadc_phys_base + AUXADC_DATA(conf->auxadc_channel), - controller_base + TEMP_ADCVOLTADDR); - - /* read valid & voltage are at the same register */ - writel(0x0, controller_base + TEMP_RDCTRL); - - /* indicate where the valid bit is */ - writel(TEMP_ADCVALIDMASK_VALID_HIGH | TEMP_ADCVALIDMASK_VALID_POS(12), - controller_base + TEMP_ADCVALIDMASK); - - /* no shift */ - writel(0x0, controller_base + TEMP_ADCVOLTAGESHIFT); - - /* enable auxadc mux write transaction */ - writel(TEMP_ADCWRITECTRL_ADC_MUX_WRITE, - controller_base + TEMP_ADCWRITECTRL); - - for (i = 0; i < conf->bank_data[num].num_sensors; i++) - writel(conf->sensor_mux_values[conf->bank_data[num].sensors[i]], - mt->thermal_base + conf->adcpnp[i]); - - writel((1 << conf->bank_data[num].num_sensors) - 1, - controller_base + TEMP_MONCTL0); - - writel(TEMP_ADCWRITECTRL_ADC_PNP_WRITE | - TEMP_ADCWRITECTRL_ADC_MUX_WRITE, - controller_base + TEMP_ADCWRITECTRL); - - mtk_thermal_put_bank(bank); -} - -static u64 of_get_phys_base(struct device_node *np) -{ - u64 size64; - const __be32 *regaddr_p; - - regaddr_p = of_get_address(np, 0, &size64, NULL); - if (!regaddr_p) - return OF_BAD_ADDR; - - return of_translate_address(np, regaddr_p); -} - -static int mtk_thermal_extract_efuse_v1(struct mtk_thermal *mt, u32 *buf) -{ - int i; - - if (!(buf[0] & CALIB_BUF0_VALID_V1)) - return -EINVAL; - - mt->adc_ge = CALIB_BUF1_ADC_GE_V1(buf[1]); - - for (i = 0; i < mt->conf->num_sensors; i++) { - switch (mt->conf->vts_index[i]) { - case VTS1: - mt->vts[VTS1] = CALIB_BUF0_VTS_TS1_V1(buf[0]); - break; - case VTS2: - mt->vts[VTS2] = CALIB_BUF0_VTS_TS2_V1(buf[0]); - break; - case VTS3: - mt->vts[VTS3] = CALIB_BUF1_VTS_TS3_V1(buf[1]); - break; - case VTS4: - mt->vts[VTS4] = CALIB_BUF2_VTS_TS4_V1(buf[2]); - break; - case VTS5: - mt->vts[VTS5] = CALIB_BUF2_VTS_TS5_V1(buf[2]); - break; - case VTSABB: - mt->vts[VTSABB] = - CALIB_BUF2_VTS_TSABB_V1(buf[2]); - break; - default: - break; - } - } - - mt->degc_cali = CALIB_BUF0_DEGC_CALI_V1(buf[0]); - if (CALIB_BUF1_ID_V1(buf[1]) & - CALIB_BUF0_O_SLOPE_SIGN_V1(buf[0])) - mt->o_slope = -CALIB_BUF0_O_SLOPE_V1(buf[0]); - else - mt->o_slope = CALIB_BUF0_O_SLOPE_V1(buf[0]); - - return 0; -} - -static int mtk_thermal_extract_efuse_v2(struct mtk_thermal *mt, u32 *buf) -{ - if (!CALIB_BUF1_VALID_V2(buf[1])) - return -EINVAL; - - mt->adc_oe = CALIB_BUF0_ADC_OE_V2(buf[0]); - mt->adc_ge = CALIB_BUF0_ADC_GE_V2(buf[0]); - mt->degc_cali = CALIB_BUF0_DEGC_CALI_V2(buf[0]); - mt->o_slope = CALIB_BUF0_O_SLOPE_V2(buf[0]); - mt->vts[VTS1] = CALIB_BUF1_VTS_TS1_V2(buf[1]); - mt->vts[VTS2] = CALIB_BUF1_VTS_TS2_V2(buf[1]); - mt->vts[VTSABB] = CALIB_BUF1_VTS_TSABB_V2(buf[1]); - mt->o_slope_sign = CALIB_BUF1_O_SLOPE_SIGN_V2(buf[1]); - - return 0; -} - -static int mtk_thermal_extract_efuse_v3(struct mtk_thermal *mt, u32 *buf) -{ - if (!CALIB_BUF1_VALID_V3(buf[1])) - return -EINVAL; - - mt->adc_ge = CALIB_BUF0_ADC_GE_V3(buf[0]); - mt->degc_cali = CALIB_BUF0_DEGC_CALI_V3(buf[0]); - mt->o_slope = CALIB_BUF0_O_SLOPE_V3(buf[0]); - mt->vts[VTS1] = CALIB_BUF1_VTS_TS1_V3(buf[1]); - mt->vts[VTS2] = CALIB_BUF1_VTS_TS2_V3(buf[1]); - mt->vts[VTSABB] = CALIB_BUF1_VTS_TSABB_V3(buf[1]); - mt->o_slope_sign = CALIB_BUF1_O_SLOPE_SIGN_V3(buf[1]); - - if (CALIB_BUF1_ID_V3(buf[1]) == 0) - mt->o_slope = 0; - - return 0; -} - -static int mtk_thermal_get_calibration_data(struct device *dev, - struct mtk_thermal *mt) -{ - struct nvmem_cell *cell; - u32 *buf; - size_t len; - int i, ret = 0; - - /* Start with default values */ - mt->adc_ge = 512; - mt->adc_oe = 512; - for (i = 0; i < mt->conf->num_sensors; i++) - mt->vts[i] = 260; - mt->degc_cali = 40; - mt->o_slope = 0; - - cell = nvmem_cell_get(dev, "calibration-data"); - if (IS_ERR(cell)) { - if (PTR_ERR(cell) == -EPROBE_DEFER) - return PTR_ERR(cell); - return 0; - } - - buf = (u32 *)nvmem_cell_read(cell, &len); - - nvmem_cell_put(cell); - - if (IS_ERR(buf)) - return PTR_ERR(buf); - - if (len < 3 * sizeof(u32)) { - dev_warn(dev, "invalid calibration data\n"); - ret = -EINVAL; - goto out; - } - - switch (mt->conf->version) { - case MTK_THERMAL_V1: - ret = mtk_thermal_extract_efuse_v1(mt, buf); - break; - case MTK_THERMAL_V2: - ret = mtk_thermal_extract_efuse_v2(mt, buf); - break; - case MTK_THERMAL_V3: - ret = mtk_thermal_extract_efuse_v3(mt, buf); - break; - default: - ret = -EINVAL; - break; - } - - if (ret) { - dev_info(dev, "Device not calibrated, using default calibration values\n"); - ret = 0; - } - -out: - kfree(buf); - - return ret; -} - -static const struct of_device_id mtk_thermal_of_match[] = { - { - .compatible = "mediatek,mt8173-thermal", - .data = (void *)&mt8173_thermal_data, - }, - { - .compatible = "mediatek,mt2701-thermal", - .data = (void *)&mt2701_thermal_data, - }, - { - .compatible = "mediatek,mt2712-thermal", - .data = (void *)&mt2712_thermal_data, - }, - { - .compatible = "mediatek,mt7622-thermal", - .data = (void *)&mt7622_thermal_data, - }, - { - .compatible = "mediatek,mt7986-thermal", - .data = (void *)&mt7986_thermal_data, - }, - { - .compatible = "mediatek,mt8183-thermal", - .data = (void *)&mt8183_thermal_data, - }, { - }, -}; -MODULE_DEVICE_TABLE(of, mtk_thermal_of_match); - -static void mtk_thermal_turn_on_buffer(void __iomem *apmixed_base) -{ - int tmp; - - tmp = readl(apmixed_base + APMIXED_SYS_TS_CON1); - tmp &= ~(0x37); - tmp |= 0x1; - writel(tmp, apmixed_base + APMIXED_SYS_TS_CON1); - udelay(200); -} - -static void mtk_thermal_release_periodic_ts(struct mtk_thermal *mt, - void __iomem *auxadc_base) -{ - int tmp; - - writel(0x800, auxadc_base + AUXADC_CON1_SET_V); - writel(0x1, mt->thermal_base + TEMP_MONCTL0); - tmp = readl(mt->thermal_base + TEMP_MSRCTL1); - writel((tmp & (~0x10e)), mt->thermal_base + TEMP_MSRCTL1); -} - -static int mtk_thermal_probe(struct platform_device *pdev) -{ - int ret, i, ctrl_id; - struct device_node *auxadc, *apmixedsys, *np = pdev->dev.of_node; - struct mtk_thermal *mt; - u64 auxadc_phys_base, apmixed_phys_base; - struct thermal_zone_device *tzdev; - void __iomem *apmixed_base, *auxadc_base; - - mt = devm_kzalloc(&pdev->dev, sizeof(*mt), GFP_KERNEL); - if (!mt) - return -ENOMEM; - - mt->conf = of_device_get_match_data(&pdev->dev); - - mt->clk_peri_therm = devm_clk_get(&pdev->dev, "therm"); - if (IS_ERR(mt->clk_peri_therm)) - return PTR_ERR(mt->clk_peri_therm); - - mt->clk_auxadc = devm_clk_get(&pdev->dev, "auxadc"); - if (IS_ERR(mt->clk_auxadc)) - return PTR_ERR(mt->clk_auxadc); - - mt->thermal_base = devm_platform_get_and_ioremap_resource(pdev, 0, NULL); - if (IS_ERR(mt->thermal_base)) - return PTR_ERR(mt->thermal_base); - - ret = mtk_thermal_get_calibration_data(&pdev->dev, mt); - if (ret) - return ret; - - mutex_init(&mt->lock); - - mt->dev = &pdev->dev; - - auxadc = of_parse_phandle(np, "mediatek,auxadc", 0); - if (!auxadc) { - dev_err(&pdev->dev, "missing auxadc node\n"); - return -ENODEV; - } - - auxadc_base = of_iomap(auxadc, 0); - auxadc_phys_base = of_get_phys_base(auxadc); - - of_node_put(auxadc); - - if (auxadc_phys_base == OF_BAD_ADDR) { - dev_err(&pdev->dev, "Can't get auxadc phys address\n"); - return -EINVAL; - } - - apmixedsys = of_parse_phandle(np, "mediatek,apmixedsys", 0); - if (!apmixedsys) { - dev_err(&pdev->dev, "missing apmixedsys node\n"); - return -ENODEV; - } - - apmixed_base = of_iomap(apmixedsys, 0); - apmixed_phys_base = of_get_phys_base(apmixedsys); - - of_node_put(apmixedsys); - - if (apmixed_phys_base == OF_BAD_ADDR) { - dev_err(&pdev->dev, "Can't get auxadc phys address\n"); - return -EINVAL; - } - - ret = device_reset_optional(&pdev->dev); - if (ret) - return ret; - - ret = clk_prepare_enable(mt->clk_auxadc); - if (ret) { - dev_err(&pdev->dev, "Can't enable auxadc clk: %d\n", ret); - return ret; - } - - ret = clk_prepare_enable(mt->clk_peri_therm); - if (ret) { - dev_err(&pdev->dev, "Can't enable peri clk: %d\n", ret); - goto err_disable_clk_auxadc; - } - - if (mt->conf->version != MTK_THERMAL_V1) { - mtk_thermal_turn_on_buffer(apmixed_base); - mtk_thermal_release_periodic_ts(mt, auxadc_base); - } - - if (mt->conf->version == MTK_THERMAL_V1) - mt->raw_to_mcelsius = raw_to_mcelsius_v1; - else if (mt->conf->version == MTK_THERMAL_V2) - mt->raw_to_mcelsius = raw_to_mcelsius_v2; - else - mt->raw_to_mcelsius = raw_to_mcelsius_v3; - - for (ctrl_id = 0; ctrl_id < mt->conf->num_controller ; ctrl_id++) - for (i = 0; i < mt->conf->num_banks; i++) - mtk_thermal_init_bank(mt, i, apmixed_phys_base, - auxadc_phys_base, ctrl_id); - - platform_set_drvdata(pdev, mt); - - tzdev = devm_thermal_of_zone_register(&pdev->dev, 0, mt, - &mtk_thermal_ops); - if (IS_ERR(tzdev)) { - ret = PTR_ERR(tzdev); - goto err_disable_clk_peri_therm; - } - - ret = devm_thermal_add_hwmon_sysfs(tzdev); - if (ret) - dev_warn(&pdev->dev, "error in thermal_add_hwmon_sysfs"); - - return 0; - -err_disable_clk_peri_therm: - clk_disable_unprepare(mt->clk_peri_therm); -err_disable_clk_auxadc: - clk_disable_unprepare(mt->clk_auxadc); - - return ret; -} - -static int mtk_thermal_remove(struct platform_device *pdev) -{ - struct mtk_thermal *mt = platform_get_drvdata(pdev); - - clk_disable_unprepare(mt->clk_peri_therm); - clk_disable_unprepare(mt->clk_auxadc); - - return 0; -} - -static struct platform_driver mtk_thermal_driver = { - .probe = mtk_thermal_probe, - .remove = mtk_thermal_remove, - .driver = { - .name = "mtk-thermal", - .of_match_table = mtk_thermal_of_match, - }, -}; - -module_platform_driver(mtk_thermal_driver); - -MODULE_AUTHOR("Michael Kao "); -MODULE_AUTHOR("Louis Yu "); -MODULE_AUTHOR("Dawei Chien "); -MODULE_AUTHOR("Sascha Hauer "); -MODULE_AUTHOR("Hanyi Wu "); -MODULE_DESCRIPTION("Mediatek thermal driver"); -MODULE_LICENSE("GPL v2"); --- /dev/null +++ b/drivers/thermal/mediatek/auxadc_thermal.c @@ -0,0 +1,1254 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2015 MediaTek Inc. + * Author: Hanyi Wu + * Sascha Hauer + * Dawei Chien + * Louis Yu + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "../thermal_hwmon.h" + +/* AUXADC Registers */ +#define AUXADC_CON1_SET_V 0x008 +#define AUXADC_CON1_CLR_V 0x00c +#define AUXADC_CON2_V 0x010 +#define AUXADC_DATA(channel) (0x14 + (channel) * 4) + +#define APMIXED_SYS_TS_CON1 0x604 + +/* Thermal Controller Registers */ +#define TEMP_MONCTL0 0x000 +#define TEMP_MONCTL1 0x004 +#define TEMP_MONCTL2 0x008 +#define TEMP_MONIDET0 0x014 +#define TEMP_MONIDET1 0x018 +#define TEMP_MSRCTL0 0x038 +#define TEMP_MSRCTL1 0x03c +#define TEMP_AHBPOLL 0x040 +#define TEMP_AHBTO 0x044 +#define TEMP_ADCPNP0 0x048 +#define TEMP_ADCPNP1 0x04c +#define TEMP_ADCPNP2 0x050 +#define TEMP_ADCPNP3 0x0b4 + +#define TEMP_ADCMUX 0x054 +#define TEMP_ADCEN 0x060 +#define TEMP_PNPMUXADDR 0x064 +#define TEMP_ADCMUXADDR 0x068 +#define TEMP_ADCENADDR 0x074 +#define TEMP_ADCVALIDADDR 0x078 +#define TEMP_ADCVOLTADDR 0x07c +#define TEMP_RDCTRL 0x080 +#define TEMP_ADCVALIDMASK 0x084 +#define TEMP_ADCVOLTAGESHIFT 0x088 +#define TEMP_ADCWRITECTRL 0x08c +#define TEMP_MSR0 0x090 +#define TEMP_MSR1 0x094 +#define TEMP_MSR2 0x098 +#define TEMP_MSR3 0x0B8 + +#define TEMP_SPARE0 0x0f0 + +#define TEMP_ADCPNP0_1 0x148 +#define TEMP_ADCPNP1_1 0x14c +#define TEMP_ADCPNP2_1 0x150 +#define TEMP_MSR0_1 0x190 +#define TEMP_MSR1_1 0x194 +#define TEMP_MSR2_1 0x198 +#define TEMP_ADCPNP3_1 0x1b4 +#define TEMP_MSR3_1 0x1B8 + +#define PTPCORESEL 0x400 + +#define TEMP_MONCTL1_PERIOD_UNIT(x) ((x) & 0x3ff) + +#define TEMP_MONCTL2_FILTER_INTERVAL(x) (((x) & 0x3ff) << 16) +#define TEMP_MONCTL2_SENSOR_INTERVAL(x) ((x) & 0x3ff) + +#define TEMP_AHBPOLL_ADC_POLL_INTERVAL(x) (x) + +#define TEMP_ADCWRITECTRL_ADC_PNP_WRITE BIT(0) +#define TEMP_ADCWRITECTRL_ADC_MUX_WRITE BIT(1) + +#define TEMP_ADCVALIDMASK_VALID_HIGH BIT(5) +#define TEMP_ADCVALIDMASK_VALID_POS(bit) (bit) + +/* MT8173 thermal sensors */ +#define MT8173_TS1 0 +#define MT8173_TS2 1 +#define MT8173_TS3 2 +#define MT8173_TS4 3 +#define MT8173_TSABB 4 + +/* AUXADC channel 11 is used for the temperature sensors */ +#define MT8173_TEMP_AUXADC_CHANNEL 11 + +/* The total number of temperature sensors in the MT8173 */ +#define MT8173_NUM_SENSORS 5 + +/* The number of banks in the MT8173 */ +#define MT8173_NUM_ZONES 4 + +/* The number of sensing points per bank */ +#define MT8173_NUM_SENSORS_PER_ZONE 4 + +/* The number of controller in the MT8173 */ +#define MT8173_NUM_CONTROLLER 1 + +/* The calibration coefficient of sensor */ +#define MT8173_CALIBRATION 165 + +/* + * Layout of the fuses providing the calibration data + * These macros could be used for MT8183, MT8173, MT2701, and MT2712. + * MT8183 has 6 sensors and needs 6 VTS calibration data. + * MT8173 has 5 sensors and needs 5 VTS calibration data. + * MT2701 has 3 sensors and needs 3 VTS calibration data. + * MT2712 has 4 sensors and needs 4 VTS calibration data. + */ +#define CALIB_BUF0_VALID_V1 BIT(0) +#define CALIB_BUF1_ADC_GE_V1(x) (((x) >> 22) & 0x3ff) +#define CALIB_BUF0_VTS_TS1_V1(x) (((x) >> 17) & 0x1ff) +#define CALIB_BUF0_VTS_TS2_V1(x) (((x) >> 8) & 0x1ff) +#define CALIB_BUF1_VTS_TS3_V1(x) (((x) >> 0) & 0x1ff) +#define CALIB_BUF2_VTS_TS4_V1(x) (((x) >> 23) & 0x1ff) +#define CALIB_BUF2_VTS_TS5_V1(x) (((x) >> 5) & 0x1ff) +#define CALIB_BUF2_VTS_TSABB_V1(x) (((x) >> 14) & 0x1ff) +#define CALIB_BUF0_DEGC_CALI_V1(x) (((x) >> 1) & 0x3f) +#define CALIB_BUF0_O_SLOPE_V1(x) (((x) >> 26) & 0x3f) +#define CALIB_BUF0_O_SLOPE_SIGN_V1(x) (((x) >> 7) & 0x1) +#define CALIB_BUF1_ID_V1(x) (((x) >> 9) & 0x1) + +/* + * Layout of the fuses providing the calibration data + * These macros could be used for MT7622. + */ +#define CALIB_BUF0_ADC_OE_V2(x) (((x) >> 22) & 0x3ff) +#define CALIB_BUF0_ADC_GE_V2(x) (((x) >> 12) & 0x3ff) +#define CALIB_BUF0_DEGC_CALI_V2(x) (((x) >> 6) & 0x3f) +#define CALIB_BUF0_O_SLOPE_V2(x) (((x) >> 0) & 0x3f) +#define CALIB_BUF1_VTS_TS1_V2(x) (((x) >> 23) & 0x1ff) +#define CALIB_BUF1_VTS_TS2_V2(x) (((x) >> 14) & 0x1ff) +#define CALIB_BUF1_VTS_TSABB_V2(x) (((x) >> 5) & 0x1ff) +#define CALIB_BUF1_VALID_V2(x) (((x) >> 4) & 0x1) +#define CALIB_BUF1_O_SLOPE_SIGN_V2(x) (((x) >> 3) & 0x1) + +/* + * Layout of the fuses providing the calibration data + * These macros can be used for MT7981 and MT7986. + */ +#define CALIB_BUF0_ADC_GE_V3(x) (((x) >> 0) & 0x3ff) +#define CALIB_BUF0_DEGC_CALI_V3(x) (((x) >> 20) & 0x3f) +#define CALIB_BUF0_O_SLOPE_V3(x) (((x) >> 26) & 0x3f) +#define CALIB_BUF1_VTS_TS1_V3(x) (((x) >> 0) & 0x1ff) +#define CALIB_BUF1_VTS_TS2_V3(x) (((x) >> 21) & 0x1ff) +#define CALIB_BUF1_VTS_TSABB_V3(x) (((x) >> 9) & 0x1ff) +#define CALIB_BUF1_VALID_V3(x) (((x) >> 18) & 0x1) +#define CALIB_BUF1_O_SLOPE_SIGN_V3(x) (((x) >> 19) & 0x1) +#define CALIB_BUF1_ID_V3(x) (((x) >> 20) & 0x1) + +enum { + VTS1, + VTS2, + VTS3, + VTS4, + VTS5, + VTSABB, + MAX_NUM_VTS, +}; + +enum mtk_thermal_version { + MTK_THERMAL_V1 = 1, + MTK_THERMAL_V2, + MTK_THERMAL_V3, +}; + +/* MT2701 thermal sensors */ +#define MT2701_TS1 0 +#define MT2701_TS2 1 +#define MT2701_TSABB 2 + +/* AUXADC channel 11 is used for the temperature sensors */ +#define MT2701_TEMP_AUXADC_CHANNEL 11 + +/* The total number of temperature sensors in the MT2701 */ +#define MT2701_NUM_SENSORS 3 + +/* The number of sensing points per bank */ +#define MT2701_NUM_SENSORS_PER_ZONE 3 + +/* The number of controller in the MT2701 */ +#define MT2701_NUM_CONTROLLER 1 + +/* The calibration coefficient of sensor */ +#define MT2701_CALIBRATION 165 + +/* MT2712 thermal sensors */ +#define MT2712_TS1 0 +#define MT2712_TS2 1 +#define MT2712_TS3 2 +#define MT2712_TS4 3 + +/* AUXADC channel 11 is used for the temperature sensors */ +#define MT2712_TEMP_AUXADC_CHANNEL 11 + +/* The total number of temperature sensors in the MT2712 */ +#define MT2712_NUM_SENSORS 4 + +/* The number of sensing points per bank */ +#define MT2712_NUM_SENSORS_PER_ZONE 4 + +/* The number of controller in the MT2712 */ +#define MT2712_NUM_CONTROLLER 1 + +/* The calibration coefficient of sensor */ +#define MT2712_CALIBRATION 165 + +#define MT7622_TEMP_AUXADC_CHANNEL 11 +#define MT7622_NUM_SENSORS 1 +#define MT7622_NUM_ZONES 1 +#define MT7622_NUM_SENSORS_PER_ZONE 1 +#define MT7622_TS1 0 +#define MT7622_NUM_CONTROLLER 1 + +/* The maximum number of banks */ +#define MAX_NUM_ZONES 8 + +/* The calibration coefficient of sensor */ +#define MT7622_CALIBRATION 165 + +/* MT8183 thermal sensors */ +#define MT8183_TS1 0 +#define MT8183_TS2 1 +#define MT8183_TS3 2 +#define MT8183_TS4 3 +#define MT8183_TS5 4 +#define MT8183_TSABB 5 + +/* AUXADC channel is used for the temperature sensors */ +#define MT8183_TEMP_AUXADC_CHANNEL 11 + +/* The total number of temperature sensors in the MT8183 */ +#define MT8183_NUM_SENSORS 6 + +/* The number of banks in the MT8183 */ +#define MT8183_NUM_ZONES 1 + +/* The number of sensing points per bank */ +#define MT8183_NUM_SENSORS_PER_ZONE 6 + +/* The number of controller in the MT8183 */ +#define MT8183_NUM_CONTROLLER 2 + +/* The calibration coefficient of sensor */ +#define MT8183_CALIBRATION 153 + +/* AUXADC channel 11 is used for the temperature sensors */ +#define MT7986_TEMP_AUXADC_CHANNEL 11 + +/* The total number of temperature sensors in the MT7986 */ +#define MT7986_NUM_SENSORS 1 + +/* The number of banks in the MT7986 */ +#define MT7986_NUM_ZONES 1 + +/* The number of sensing points per bank */ +#define MT7986_NUM_SENSORS_PER_ZONE 1 + +/* MT7986 thermal sensors */ +#define MT7986_TS1 0 + +/* The number of controller in the MT7986 */ +#define MT7986_NUM_CONTROLLER 1 + +/* The calibration coefficient of sensor */ +#define MT7986_CALIBRATION 165 + +struct mtk_thermal; + +struct thermal_bank_cfg { + unsigned int num_sensors; + const int *sensors; +}; + +struct mtk_thermal_bank { + struct mtk_thermal *mt; + int id; +}; + +struct mtk_thermal_data { + s32 num_banks; + s32 num_sensors; + s32 auxadc_channel; + const int *vts_index; + const int *sensor_mux_values; + const int *msr; + const int *adcpnp; + const int cali_val; + const int num_controller; + const int *controller_offset; + bool need_switch_bank; + struct thermal_bank_cfg bank_data[MAX_NUM_ZONES]; + enum mtk_thermal_version version; +}; + +struct mtk_thermal { + struct device *dev; + void __iomem *thermal_base; + + struct clk *clk_peri_therm; + struct clk *clk_auxadc; + /* lock: for getting and putting banks */ + struct mutex lock; + + /* Calibration values */ + s32 adc_ge; + s32 adc_oe; + s32 degc_cali; + s32 o_slope; + s32 o_slope_sign; + s32 vts[MAX_NUM_VTS]; + + const struct mtk_thermal_data *conf; + struct mtk_thermal_bank banks[MAX_NUM_ZONES]; + + int (*raw_to_mcelsius)(struct mtk_thermal *mt, int sensno, s32 raw); +}; + +/* MT8183 thermal sensor data */ +static const int mt8183_bank_data[MT8183_NUM_SENSORS] = { + MT8183_TS1, MT8183_TS2, MT8183_TS3, MT8183_TS4, MT8183_TS5, MT8183_TSABB +}; + +static const int mt8183_msr[MT8183_NUM_SENSORS_PER_ZONE] = { + TEMP_MSR0_1, TEMP_MSR1_1, TEMP_MSR2_1, TEMP_MSR1, TEMP_MSR0, TEMP_MSR3_1 +}; + +static const int mt8183_adcpnp[MT8183_NUM_SENSORS_PER_ZONE] = { + TEMP_ADCPNP0_1, TEMP_ADCPNP1_1, TEMP_ADCPNP2_1, + TEMP_ADCPNP1, TEMP_ADCPNP0, TEMP_ADCPNP3_1 +}; + +static const int mt8183_mux_values[MT8183_NUM_SENSORS] = { 0, 1, 2, 3, 4, 0 }; +static const int mt8183_tc_offset[MT8183_NUM_CONTROLLER] = {0x0, 0x100}; + +static const int mt8183_vts_index[MT8183_NUM_SENSORS] = { + VTS1, VTS2, VTS3, VTS4, VTS5, VTSABB +}; + +/* MT8173 thermal sensor data */ +static const int mt8173_bank_data[MT8173_NUM_ZONES][3] = { + { MT8173_TS2, MT8173_TS3 }, + { MT8173_TS2, MT8173_TS4 }, + { MT8173_TS1, MT8173_TS2, MT8173_TSABB }, + { MT8173_TS2 }, +}; + +static const int mt8173_msr[MT8173_NUM_SENSORS_PER_ZONE] = { + TEMP_MSR0, TEMP_MSR1, TEMP_MSR2, TEMP_MSR3 +}; + +static const int mt8173_adcpnp[MT8173_NUM_SENSORS_PER_ZONE] = { + TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2, TEMP_ADCPNP3 +}; + +static const int mt8173_mux_values[MT8173_NUM_SENSORS] = { 0, 1, 2, 3, 16 }; +static const int mt8173_tc_offset[MT8173_NUM_CONTROLLER] = { 0x0, }; + +static const int mt8173_vts_index[MT8173_NUM_SENSORS] = { + VTS1, VTS2, VTS3, VTS4, VTSABB +}; + +/* MT2701 thermal sensor data */ +static const int mt2701_bank_data[MT2701_NUM_SENSORS] = { + MT2701_TS1, MT2701_TS2, MT2701_TSABB +}; + +static const int mt2701_msr[MT2701_NUM_SENSORS_PER_ZONE] = { + TEMP_MSR0, TEMP_MSR1, TEMP_MSR2 +}; + +static const int mt2701_adcpnp[MT2701_NUM_SENSORS_PER_ZONE] = { + TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2 +}; + +static const int mt2701_mux_values[MT2701_NUM_SENSORS] = { 0, 1, 16 }; +static const int mt2701_tc_offset[MT2701_NUM_CONTROLLER] = { 0x0, }; + +static const int mt2701_vts_index[MT2701_NUM_SENSORS] = { + VTS1, VTS2, VTS3 +}; + +/* MT2712 thermal sensor data */ +static const int mt2712_bank_data[MT2712_NUM_SENSORS] = { + MT2712_TS1, MT2712_TS2, MT2712_TS3, MT2712_TS4 +}; + +static const int mt2712_msr[MT2712_NUM_SENSORS_PER_ZONE] = { + TEMP_MSR0, TEMP_MSR1, TEMP_MSR2, TEMP_MSR3 +}; + +static const int mt2712_adcpnp[MT2712_NUM_SENSORS_PER_ZONE] = { + TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2, TEMP_ADCPNP3 +}; + +static const int mt2712_mux_values[MT2712_NUM_SENSORS] = { 0, 1, 2, 3 }; +static const int mt2712_tc_offset[MT2712_NUM_CONTROLLER] = { 0x0, }; + +static const int mt2712_vts_index[MT2712_NUM_SENSORS] = { + VTS1, VTS2, VTS3, VTS4 +}; + +/* MT7622 thermal sensor data */ +static const int mt7622_bank_data[MT7622_NUM_SENSORS] = { MT7622_TS1, }; +static const int mt7622_msr[MT7622_NUM_SENSORS_PER_ZONE] = { TEMP_MSR0, }; +static const int mt7622_adcpnp[MT7622_NUM_SENSORS_PER_ZONE] = { TEMP_ADCPNP0, }; +static const int mt7622_mux_values[MT7622_NUM_SENSORS] = { 0, }; +static const int mt7622_vts_index[MT7622_NUM_SENSORS] = { VTS1 }; +static const int mt7622_tc_offset[MT7622_NUM_CONTROLLER] = { 0x0, }; + +/* MT7986 thermal sensor data */ +static const int mt7986_bank_data[MT7986_NUM_SENSORS] = { MT7986_TS1, }; +static const int mt7986_msr[MT7986_NUM_SENSORS_PER_ZONE] = { TEMP_MSR0, }; +static const int mt7986_adcpnp[MT7986_NUM_SENSORS_PER_ZONE] = { TEMP_ADCPNP0, }; +static const int mt7986_mux_values[MT7986_NUM_SENSORS] = { 0, }; +static const int mt7986_vts_index[MT7986_NUM_SENSORS] = { VTS1 }; +static const int mt7986_tc_offset[MT7986_NUM_CONTROLLER] = { 0x0, }; + +/* + * The MT8173 thermal controller has four banks. Each bank can read up to + * four temperature sensors simultaneously. The MT8173 has a total of 5 + * temperature sensors. We use each bank to measure a certain area of the + * SoC. Since TS2 is located centrally in the SoC it is influenced by multiple + * areas, hence is used in different banks. + * + * The thermal core only gets the maximum temperature of all banks, so + * the bank concept wouldn't be necessary here. However, the SVS (Smart + * Voltage Scaling) unit makes its decisions based on the same bank + * data, and this indeed needs the temperatures of the individual banks + * for making better decisions. + */ +static const struct mtk_thermal_data mt8173_thermal_data = { + .auxadc_channel = MT8173_TEMP_AUXADC_CHANNEL, + .num_banks = MT8173_NUM_ZONES, + .num_sensors = MT8173_NUM_SENSORS, + .vts_index = mt8173_vts_index, + .cali_val = MT8173_CALIBRATION, + .num_controller = MT8173_NUM_CONTROLLER, + .controller_offset = mt8173_tc_offset, + .need_switch_bank = true, + .bank_data = { + { + .num_sensors = 2, + .sensors = mt8173_bank_data[0], + }, { + .num_sensors = 2, + .sensors = mt8173_bank_data[1], + }, { + .num_sensors = 3, + .sensors = mt8173_bank_data[2], + }, { + .num_sensors = 1, + .sensors = mt8173_bank_data[3], + }, + }, + .msr = mt8173_msr, + .adcpnp = mt8173_adcpnp, + .sensor_mux_values = mt8173_mux_values, + .version = MTK_THERMAL_V1, +}; + +/* + * The MT2701 thermal controller has one bank, which can read up to + * three temperature sensors simultaneously. The MT2701 has a total of 3 + * temperature sensors. + * + * The thermal core only gets the maximum temperature of this one bank, + * so the bank concept wouldn't be necessary here. However, the SVS (Smart + * Voltage Scaling) unit makes its decisions based on the same bank + * data. + */ +static const struct mtk_thermal_data mt2701_thermal_data = { + .auxadc_channel = MT2701_TEMP_AUXADC_CHANNEL, + .num_banks = 1, + .num_sensors = MT2701_NUM_SENSORS, + .vts_index = mt2701_vts_index, + .cali_val = MT2701_CALIBRATION, + .num_controller = MT2701_NUM_CONTROLLER, + .controller_offset = mt2701_tc_offset, + .need_switch_bank = true, + .bank_data = { + { + .num_sensors = 3, + .sensors = mt2701_bank_data, + }, + }, + .msr = mt2701_msr, + .adcpnp = mt2701_adcpnp, + .sensor_mux_values = mt2701_mux_values, + .version = MTK_THERMAL_V1, +}; + +/* + * The MT2712 thermal controller has one bank, which can read up to + * four temperature sensors simultaneously. The MT2712 has a total of 4 + * temperature sensors. + * + * The thermal core only gets the maximum temperature of this one bank, + * so the bank concept wouldn't be necessary here. However, the SVS (Smart + * Voltage Scaling) unit makes its decisions based on the same bank + * data. + */ +static const struct mtk_thermal_data mt2712_thermal_data = { + .auxadc_channel = MT2712_TEMP_AUXADC_CHANNEL, + .num_banks = 1, + .num_sensors = MT2712_NUM_SENSORS, + .vts_index = mt2712_vts_index, + .cali_val = MT2712_CALIBRATION, + .num_controller = MT2712_NUM_CONTROLLER, + .controller_offset = mt2712_tc_offset, + .need_switch_bank = true, + .bank_data = { + { + .num_sensors = 4, + .sensors = mt2712_bank_data, + }, + }, + .msr = mt2712_msr, + .adcpnp = mt2712_adcpnp, + .sensor_mux_values = mt2712_mux_values, + .version = MTK_THERMAL_V1, +}; + +/* + * MT7622 have only one sensing point which uses AUXADC Channel 11 for raw data + * access. + */ +static const struct mtk_thermal_data mt7622_thermal_data = { + .auxadc_channel = MT7622_TEMP_AUXADC_CHANNEL, + .num_banks = MT7622_NUM_ZONES, + .num_sensors = MT7622_NUM_SENSORS, + .vts_index = mt7622_vts_index, + .cali_val = MT7622_CALIBRATION, + .num_controller = MT7622_NUM_CONTROLLER, + .controller_offset = mt7622_tc_offset, + .need_switch_bank = true, + .bank_data = { + { + .num_sensors = 1, + .sensors = mt7622_bank_data, + }, + }, + .msr = mt7622_msr, + .adcpnp = mt7622_adcpnp, + .sensor_mux_values = mt7622_mux_values, + .version = MTK_THERMAL_V2, +}; + +/* + * The MT8183 thermal controller has one bank for the current SW framework. + * The MT8183 has a total of 6 temperature sensors. + * There are two thermal controller to control the six sensor. + * The first one bind 2 sensor, and the other bind 4 sensors. + * The thermal core only gets the maximum temperature of all sensor, so + * the bank concept wouldn't be necessary here. However, the SVS (Smart + * Voltage Scaling) unit makes its decisions based on the same bank + * data, and this indeed needs the temperatures of the individual banks + * for making better decisions. + */ +static const struct mtk_thermal_data mt8183_thermal_data = { + .auxadc_channel = MT8183_TEMP_AUXADC_CHANNEL, + .num_banks = MT8183_NUM_ZONES, + .num_sensors = MT8183_NUM_SENSORS, + .vts_index = mt8183_vts_index, + .cali_val = MT8183_CALIBRATION, + .num_controller = MT8183_NUM_CONTROLLER, + .controller_offset = mt8183_tc_offset, + .need_switch_bank = false, + .bank_data = { + { + .num_sensors = 6, + .sensors = mt8183_bank_data, + }, + }, + + .msr = mt8183_msr, + .adcpnp = mt8183_adcpnp, + .sensor_mux_values = mt8183_mux_values, + .version = MTK_THERMAL_V1, +}; + +/* + * MT7986 uses AUXADC Channel 11 for raw data access. + */ +static const struct mtk_thermal_data mt7986_thermal_data = { + .auxadc_channel = MT7986_TEMP_AUXADC_CHANNEL, + .num_banks = MT7986_NUM_ZONES, + .num_sensors = MT7986_NUM_SENSORS, + .vts_index = mt7986_vts_index, + .cali_val = MT7986_CALIBRATION, + .num_controller = MT7986_NUM_CONTROLLER, + .controller_offset = mt7986_tc_offset, + .need_switch_bank = true, + .bank_data = { + { + .num_sensors = 1, + .sensors = mt7986_bank_data, + }, + }, + .msr = mt7986_msr, + .adcpnp = mt7986_adcpnp, + .sensor_mux_values = mt7986_mux_values, + .version = MTK_THERMAL_V3, +}; + +/** + * raw_to_mcelsius_v1 - convert a raw ADC value to mcelsius + * @mt: The thermal controller + * @sensno: sensor number + * @raw: raw ADC value + * + * This converts the raw ADC value to mcelsius using the SoC specific + * calibration constants + */ +static int raw_to_mcelsius_v1(struct mtk_thermal *mt, int sensno, s32 raw) +{ + s32 tmp; + + raw &= 0xfff; + + tmp = 203450520 << 3; + tmp /= mt->conf->cali_val + mt->o_slope; + tmp /= 10000 + mt->adc_ge; + tmp *= raw - mt->vts[sensno] - 3350; + tmp >>= 3; + + return mt->degc_cali * 500 - tmp; +} + +static int raw_to_mcelsius_v2(struct mtk_thermal *mt, int sensno, s32 raw) +{ + s32 format_1; + s32 format_2; + s32 g_oe; + s32 g_gain; + s32 g_x_roomt; + s32 tmp; + + if (raw == 0) + return 0; + + raw &= 0xfff; + g_gain = 10000 + (((mt->adc_ge - 512) * 10000) >> 12); + g_oe = mt->adc_oe - 512; + format_1 = mt->vts[VTS2] + 3105 - g_oe; + format_2 = (mt->degc_cali * 10) >> 1; + g_x_roomt = (((format_1 * 10000) >> 12) * 10000) / g_gain; + + tmp = (((((raw - g_oe) * 10000) >> 12) * 10000) / g_gain) - g_x_roomt; + tmp = tmp * 10 * 100 / 11; + + if (mt->o_slope_sign == 0) + tmp = tmp / (165 - mt->o_slope); + else + tmp = tmp / (165 + mt->o_slope); + + return (format_2 - tmp) * 100; +} + +static int raw_to_mcelsius_v3(struct mtk_thermal *mt, int sensno, s32 raw) +{ + s32 tmp; + + if (raw == 0) + return 0; + + raw &= 0xfff; + tmp = 100000 * 15 / 16 * 10000; + tmp /= 4096 - 512 + mt->adc_ge; + tmp /= 1490; + tmp *= raw - mt->vts[sensno] - 2900; + + return mt->degc_cali * 500 - tmp; +} + +/** + * mtk_thermal_get_bank - get bank + * @bank: The bank + * + * The bank registers are banked, we have to select a bank in the + * PTPCORESEL register to access it. + */ +static void mtk_thermal_get_bank(struct mtk_thermal_bank *bank) +{ + struct mtk_thermal *mt = bank->mt; + u32 val; + + if (mt->conf->need_switch_bank) { + mutex_lock(&mt->lock); + + val = readl(mt->thermal_base + PTPCORESEL); + val &= ~0xf; + val |= bank->id; + writel(val, mt->thermal_base + PTPCORESEL); + } +} + +/** + * mtk_thermal_put_bank - release bank + * @bank: The bank + * + * release a bank previously taken with mtk_thermal_get_bank, + */ +static void mtk_thermal_put_bank(struct mtk_thermal_bank *bank) +{ + struct mtk_thermal *mt = bank->mt; + + if (mt->conf->need_switch_bank) + mutex_unlock(&mt->lock); +} + +/** + * mtk_thermal_bank_temperature - get the temperature of a bank + * @bank: The bank + * + * The temperature of a bank is considered the maximum temperature of + * the sensors associated to the bank. + */ +static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank) +{ + struct mtk_thermal *mt = bank->mt; + const struct mtk_thermal_data *conf = mt->conf; + int i, temp = INT_MIN, max = INT_MIN; + u32 raw; + + for (i = 0; i < conf->bank_data[bank->id].num_sensors; i++) { + raw = readl(mt->thermal_base + conf->msr[i]); + + temp = mt->raw_to_mcelsius( + mt, conf->bank_data[bank->id].sensors[i], raw); + + + /* + * The first read of a sensor often contains very high bogus + * temperature value. Filter these out so that the system does + * not immediately shut down. + */ + if (temp > 200000) + temp = 0; + + if (temp > max) + max = temp; + } + + return max; +} + +static int mtk_read_temp(struct thermal_zone_device *tz, int *temperature) +{ + struct mtk_thermal *mt = tz->devdata; + int i; + int tempmax = INT_MIN; + + for (i = 0; i < mt->conf->num_banks; i++) { + struct mtk_thermal_bank *bank = &mt->banks[i]; + + mtk_thermal_get_bank(bank); + + tempmax = max(tempmax, mtk_thermal_bank_temperature(bank)); + + mtk_thermal_put_bank(bank); + } + + *temperature = tempmax; + + return 0; +} + +static const struct thermal_zone_device_ops mtk_thermal_ops = { + .get_temp = mtk_read_temp, +}; + +static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num, + u32 apmixed_phys_base, u32 auxadc_phys_base, + int ctrl_id) +{ + struct mtk_thermal_bank *bank = &mt->banks[num]; + const struct mtk_thermal_data *conf = mt->conf; + int i; + + int offset = mt->conf->controller_offset[ctrl_id]; + void __iomem *controller_base = mt->thermal_base + offset; + + bank->id = num; + bank->mt = mt; + + mtk_thermal_get_bank(bank); + + /* bus clock 66M counting unit is 12 * 15.15ns * 256 = 46.540us */ + writel(TEMP_MONCTL1_PERIOD_UNIT(12), controller_base + TEMP_MONCTL1); + + /* + * filt interval is 1 * 46.540us = 46.54us, + * sen interval is 429 * 46.540us = 19.96ms + */ + writel(TEMP_MONCTL2_FILTER_INTERVAL(1) | + TEMP_MONCTL2_SENSOR_INTERVAL(429), + controller_base + TEMP_MONCTL2); + + /* poll is set to 10u */ + writel(TEMP_AHBPOLL_ADC_POLL_INTERVAL(768), + controller_base + TEMP_AHBPOLL); + + /* temperature sampling control, 1 sample */ + writel(0x0, controller_base + TEMP_MSRCTL0); + + /* exceed this polling time, IRQ would be inserted */ + writel(0xffffffff, controller_base + TEMP_AHBTO); + + /* number of interrupts per event, 1 is enough */ + writel(0x0, controller_base + TEMP_MONIDET0); + writel(0x0, controller_base + TEMP_MONIDET1); + + /* + * The MT8173 thermal controller does not have its own ADC. Instead it + * uses AHB bus accesses to control the AUXADC. To do this the thermal + * controller has to be programmed with the physical addresses of the + * AUXADC registers and with the various bit positions in the AUXADC. + * Also the thermal controller controls a mux in the APMIXEDSYS register + * space. + */ + + /* + * this value will be stored to TEMP_PNPMUXADDR (TEMP_SPARE0) + * automatically by hw + */ + writel(BIT(conf->auxadc_channel), controller_base + TEMP_ADCMUX); + + /* AHB address for auxadc mux selection */ + writel(auxadc_phys_base + AUXADC_CON1_CLR_V, + controller_base + TEMP_ADCMUXADDR); + + if (mt->conf->version == MTK_THERMAL_V1) { + /* AHB address for pnp sensor mux selection */ + writel(apmixed_phys_base + APMIXED_SYS_TS_CON1, + controller_base + TEMP_PNPMUXADDR); + } + + /* AHB value for auxadc enable */ + writel(BIT(conf->auxadc_channel), controller_base + TEMP_ADCEN); + + /* AHB address for auxadc enable (channel 0 immediate mode selected) */ + writel(auxadc_phys_base + AUXADC_CON1_SET_V, + controller_base + TEMP_ADCENADDR); + + /* AHB address for auxadc valid bit */ + writel(auxadc_phys_base + AUXADC_DATA(conf->auxadc_channel), + controller_base + TEMP_ADCVALIDADDR); + + /* AHB address for auxadc voltage output */ + writel(auxadc_phys_base + AUXADC_DATA(conf->auxadc_channel), + controller_base + TEMP_ADCVOLTADDR); + + /* read valid & voltage are at the same register */ + writel(0x0, controller_base + TEMP_RDCTRL); + + /* indicate where the valid bit is */ + writel(TEMP_ADCVALIDMASK_VALID_HIGH | TEMP_ADCVALIDMASK_VALID_POS(12), + controller_base + TEMP_ADCVALIDMASK); + + /* no shift */ + writel(0x0, controller_base + TEMP_ADCVOLTAGESHIFT); + + /* enable auxadc mux write transaction */ + writel(TEMP_ADCWRITECTRL_ADC_MUX_WRITE, + controller_base + TEMP_ADCWRITECTRL); + + for (i = 0; i < conf->bank_data[num].num_sensors; i++) + writel(conf->sensor_mux_values[conf->bank_data[num].sensors[i]], + mt->thermal_base + conf->adcpnp[i]); + + writel((1 << conf->bank_data[num].num_sensors) - 1, + controller_base + TEMP_MONCTL0); + + writel(TEMP_ADCWRITECTRL_ADC_PNP_WRITE | + TEMP_ADCWRITECTRL_ADC_MUX_WRITE, + controller_base + TEMP_ADCWRITECTRL); + + mtk_thermal_put_bank(bank); +} + +static u64 of_get_phys_base(struct device_node *np) +{ + u64 size64; + const __be32 *regaddr_p; + + regaddr_p = of_get_address(np, 0, &size64, NULL); + if (!regaddr_p) + return OF_BAD_ADDR; + + return of_translate_address(np, regaddr_p); +} + +static int mtk_thermal_extract_efuse_v1(struct mtk_thermal *mt, u32 *buf) +{ + int i; + + if (!(buf[0] & CALIB_BUF0_VALID_V1)) + return -EINVAL; + + mt->adc_ge = CALIB_BUF1_ADC_GE_V1(buf[1]); + + for (i = 0; i < mt->conf->num_sensors; i++) { + switch (mt->conf->vts_index[i]) { + case VTS1: + mt->vts[VTS1] = CALIB_BUF0_VTS_TS1_V1(buf[0]); + break; + case VTS2: + mt->vts[VTS2] = CALIB_BUF0_VTS_TS2_V1(buf[0]); + break; + case VTS3: + mt->vts[VTS3] = CALIB_BUF1_VTS_TS3_V1(buf[1]); + break; + case VTS4: + mt->vts[VTS4] = CALIB_BUF2_VTS_TS4_V1(buf[2]); + break; + case VTS5: + mt->vts[VTS5] = CALIB_BUF2_VTS_TS5_V1(buf[2]); + break; + case VTSABB: + mt->vts[VTSABB] = + CALIB_BUF2_VTS_TSABB_V1(buf[2]); + break; + default: + break; + } + } + + mt->degc_cali = CALIB_BUF0_DEGC_CALI_V1(buf[0]); + if (CALIB_BUF1_ID_V1(buf[1]) & + CALIB_BUF0_O_SLOPE_SIGN_V1(buf[0])) + mt->o_slope = -CALIB_BUF0_O_SLOPE_V1(buf[0]); + else + mt->o_slope = CALIB_BUF0_O_SLOPE_V1(buf[0]); + + return 0; +} + +static int mtk_thermal_extract_efuse_v2(struct mtk_thermal *mt, u32 *buf) +{ + if (!CALIB_BUF1_VALID_V2(buf[1])) + return -EINVAL; + + mt->adc_oe = CALIB_BUF0_ADC_OE_V2(buf[0]); + mt->adc_ge = CALIB_BUF0_ADC_GE_V2(buf[0]); + mt->degc_cali = CALIB_BUF0_DEGC_CALI_V2(buf[0]); + mt->o_slope = CALIB_BUF0_O_SLOPE_V2(buf[0]); + mt->vts[VTS1] = CALIB_BUF1_VTS_TS1_V2(buf[1]); + mt->vts[VTS2] = CALIB_BUF1_VTS_TS2_V2(buf[1]); + mt->vts[VTSABB] = CALIB_BUF1_VTS_TSABB_V2(buf[1]); + mt->o_slope_sign = CALIB_BUF1_O_SLOPE_SIGN_V2(buf[1]); + + return 0; +} + +static int mtk_thermal_extract_efuse_v3(struct mtk_thermal *mt, u32 *buf) +{ + if (!CALIB_BUF1_VALID_V3(buf[1])) + return -EINVAL; + + mt->adc_ge = CALIB_BUF0_ADC_GE_V3(buf[0]); + mt->degc_cali = CALIB_BUF0_DEGC_CALI_V3(buf[0]); + mt->o_slope = CALIB_BUF0_O_SLOPE_V3(buf[0]); + mt->vts[VTS1] = CALIB_BUF1_VTS_TS1_V3(buf[1]); + mt->vts[VTS2] = CALIB_BUF1_VTS_TS2_V3(buf[1]); + mt->vts[VTSABB] = CALIB_BUF1_VTS_TSABB_V3(buf[1]); + mt->o_slope_sign = CALIB_BUF1_O_SLOPE_SIGN_V3(buf[1]); + + if (CALIB_BUF1_ID_V3(buf[1]) == 0) + mt->o_slope = 0; + + return 0; +} + +static int mtk_thermal_get_calibration_data(struct device *dev, + struct mtk_thermal *mt) +{ + struct nvmem_cell *cell; + u32 *buf; + size_t len; + int i, ret = 0; + + /* Start with default values */ + mt->adc_ge = 512; + mt->adc_oe = 512; + for (i = 0; i < mt->conf->num_sensors; i++) + mt->vts[i] = 260; + mt->degc_cali = 40; + mt->o_slope = 0; + + cell = nvmem_cell_get(dev, "calibration-data"); + if (IS_ERR(cell)) { + if (PTR_ERR(cell) == -EPROBE_DEFER) + return PTR_ERR(cell); + return 0; + } + + buf = (u32 *)nvmem_cell_read(cell, &len); + + nvmem_cell_put(cell); + + if (IS_ERR(buf)) + return PTR_ERR(buf); + + if (len < 3 * sizeof(u32)) { + dev_warn(dev, "invalid calibration data\n"); + ret = -EINVAL; + goto out; + } + + switch (mt->conf->version) { + case MTK_THERMAL_V1: + ret = mtk_thermal_extract_efuse_v1(mt, buf); + break; + case MTK_THERMAL_V2: + ret = mtk_thermal_extract_efuse_v2(mt, buf); + break; + case MTK_THERMAL_V3: + ret = mtk_thermal_extract_efuse_v3(mt, buf); + break; + default: + ret = -EINVAL; + break; + } + + if (ret) { + dev_info(dev, "Device not calibrated, using default calibration values\n"); + ret = 0; + } + +out: + kfree(buf); + + return ret; +} + +static const struct of_device_id mtk_thermal_of_match[] = { + { + .compatible = "mediatek,mt8173-thermal", + .data = (void *)&mt8173_thermal_data, + }, + { + .compatible = "mediatek,mt2701-thermal", + .data = (void *)&mt2701_thermal_data, + }, + { + .compatible = "mediatek,mt2712-thermal", + .data = (void *)&mt2712_thermal_data, + }, + { + .compatible = "mediatek,mt7622-thermal", + .data = (void *)&mt7622_thermal_data, + }, + { + .compatible = "mediatek,mt7986-thermal", + .data = (void *)&mt7986_thermal_data, + }, + { + .compatible = "mediatek,mt8183-thermal", + .data = (void *)&mt8183_thermal_data, + }, { + }, +}; +MODULE_DEVICE_TABLE(of, mtk_thermal_of_match); + +static void mtk_thermal_turn_on_buffer(void __iomem *apmixed_base) +{ + int tmp; + + tmp = readl(apmixed_base + APMIXED_SYS_TS_CON1); + tmp &= ~(0x37); + tmp |= 0x1; + writel(tmp, apmixed_base + APMIXED_SYS_TS_CON1); + udelay(200); +} + +static void mtk_thermal_release_periodic_ts(struct mtk_thermal *mt, + void __iomem *auxadc_base) +{ + int tmp; + + writel(0x800, auxadc_base + AUXADC_CON1_SET_V); + writel(0x1, mt->thermal_base + TEMP_MONCTL0); + tmp = readl(mt->thermal_base + TEMP_MSRCTL1); + writel((tmp & (~0x10e)), mt->thermal_base + TEMP_MSRCTL1); +} + +static int mtk_thermal_probe(struct platform_device *pdev) +{ + int ret, i, ctrl_id; + struct device_node *auxadc, *apmixedsys, *np = pdev->dev.of_node; + struct mtk_thermal *mt; + u64 auxadc_phys_base, apmixed_phys_base; + struct thermal_zone_device *tzdev; + void __iomem *apmixed_base, *auxadc_base; + + mt = devm_kzalloc(&pdev->dev, sizeof(*mt), GFP_KERNEL); + if (!mt) + return -ENOMEM; + + mt->conf = of_device_get_match_data(&pdev->dev); + + mt->clk_peri_therm = devm_clk_get(&pdev->dev, "therm"); + if (IS_ERR(mt->clk_peri_therm)) + return PTR_ERR(mt->clk_peri_therm); + + mt->clk_auxadc = devm_clk_get(&pdev->dev, "auxadc"); + if (IS_ERR(mt->clk_auxadc)) + return PTR_ERR(mt->clk_auxadc); + + mt->thermal_base = devm_platform_get_and_ioremap_resource(pdev, 0, NULL); + if (IS_ERR(mt->thermal_base)) + return PTR_ERR(mt->thermal_base); + + ret = mtk_thermal_get_calibration_data(&pdev->dev, mt); + if (ret) + return ret; + + mutex_init(&mt->lock); + + mt->dev = &pdev->dev; + + auxadc = of_parse_phandle(np, "mediatek,auxadc", 0); + if (!auxadc) { + dev_err(&pdev->dev, "missing auxadc node\n"); + return -ENODEV; + } + + auxadc_base = of_iomap(auxadc, 0); + auxadc_phys_base = of_get_phys_base(auxadc); + + of_node_put(auxadc); + + if (auxadc_phys_base == OF_BAD_ADDR) { + dev_err(&pdev->dev, "Can't get auxadc phys address\n"); + return -EINVAL; + } + + apmixedsys = of_parse_phandle(np, "mediatek,apmixedsys", 0); + if (!apmixedsys) { + dev_err(&pdev->dev, "missing apmixedsys node\n"); + return -ENODEV; + } + + apmixed_base = of_iomap(apmixedsys, 0); + apmixed_phys_base = of_get_phys_base(apmixedsys); + + of_node_put(apmixedsys); + + if (apmixed_phys_base == OF_BAD_ADDR) { + dev_err(&pdev->dev, "Can't get auxadc phys address\n"); + return -EINVAL; + } + + ret = device_reset_optional(&pdev->dev); + if (ret) + return ret; + + ret = clk_prepare_enable(mt->clk_auxadc); + if (ret) { + dev_err(&pdev->dev, "Can't enable auxadc clk: %d\n", ret); + return ret; + } + + ret = clk_prepare_enable(mt->clk_peri_therm); + if (ret) { + dev_err(&pdev->dev, "Can't enable peri clk: %d\n", ret); + goto err_disable_clk_auxadc; + } + + if (mt->conf->version != MTK_THERMAL_V1) { + mtk_thermal_turn_on_buffer(apmixed_base); + mtk_thermal_release_periodic_ts(mt, auxadc_base); + } + + if (mt->conf->version == MTK_THERMAL_V1) + mt->raw_to_mcelsius = raw_to_mcelsius_v1; + else if (mt->conf->version == MTK_THERMAL_V2) + mt->raw_to_mcelsius = raw_to_mcelsius_v2; + else + mt->raw_to_mcelsius = raw_to_mcelsius_v3; + + for (ctrl_id = 0; ctrl_id < mt->conf->num_controller ; ctrl_id++) + for (i = 0; i < mt->conf->num_banks; i++) + mtk_thermal_init_bank(mt, i, apmixed_phys_base, + auxadc_phys_base, ctrl_id); + + platform_set_drvdata(pdev, mt); + + tzdev = devm_thermal_of_zone_register(&pdev->dev, 0, mt, + &mtk_thermal_ops); + if (IS_ERR(tzdev)) { + ret = PTR_ERR(tzdev); + goto err_disable_clk_peri_therm; + } + + ret = devm_thermal_add_hwmon_sysfs(tzdev); + if (ret) + dev_warn(&pdev->dev, "error in thermal_add_hwmon_sysfs"); + + return 0; + +err_disable_clk_peri_therm: + clk_disable_unprepare(mt->clk_peri_therm); +err_disable_clk_auxadc: + clk_disable_unprepare(mt->clk_auxadc); + + return ret; +} + +static int mtk_thermal_remove(struct platform_device *pdev) +{ + struct mtk_thermal *mt = platform_get_drvdata(pdev); + + clk_disable_unprepare(mt->clk_peri_therm); + clk_disable_unprepare(mt->clk_auxadc); + + return 0; +} + +static struct platform_driver mtk_thermal_driver = { + .probe = mtk_thermal_probe, + .remove = mtk_thermal_remove, + .driver = { + .name = "mtk-thermal", + .of_match_table = mtk_thermal_of_match, + }, +}; + +module_platform_driver(mtk_thermal_driver); + +MODULE_AUTHOR("Michael Kao "); +MODULE_AUTHOR("Louis Yu "); +MODULE_AUTHOR("Dawei Chien "); +MODULE_AUTHOR("Sascha Hauer "); +MODULE_AUTHOR("Hanyi Wu "); +MODULE_DESCRIPTION("Mediatek thermal driver"); +MODULE_LICENSE("GPL v2");