Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6cf7f002 authored by Louis Yu's avatar Louis Yu Committed by Zhang Rui
Browse files

thermal: mediatek: add Mediatek thermal driver for mt2712 



This patch adds support for mt2712 chip to mtk_thermal,
and integrate mt2712 into the same mediatek thermal driver.
MT2712 has only 1 bank and 4 sensors.

Signed-off-by: default avatarLouis Yu <louis.yu@mediatek.com>
Reviewed-by: default avatarDawei Chien <dawei.chien@mediatek.com>
Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
parent f09517ab

drivers/thermal/mtk_thermal.c

+66 −4
Original line number Diff line number Diff line
@@ -3,6 +3,7 @@ 
 * Author: Hanyi Wu <hanyi.wu@mediatek.com>

 *         Sascha Hauer <s.hauer@pengutronix.de>

 *         Dawei Chien <dawei.chien@mediatek.com>

 *         Louis Yu <louis.yu@mediatek.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as
@@ -111,9 +112,10 @@ 


/*

 * Layout of the fuses providing the calibration data

 * These macros could be used for both MT8173 and MT2701.

 * These macros could be used for both MT8173, MT2701, and MT2712.

 * MT8173 has five sensors and need five VTS calibration data,

 * and MT2701 has three sensors and need three VTS calibration data.

 * and MT2701 has three sensors and need three VTS calibration data,

 * and MT2712 has four sensors and need four VTS calibration data.

 */

#define MT8173_CALIB_BUF0_VALID		BIT(0)

#define MT8173_CALIB_BUF1_ADC_GE(x)	(((x) >> 22) & 0x3ff)
@@ -136,11 +138,26 @@ 
/* The total number of temperature sensors in the MT2701 */

#define MT2701_NUM_SENSORS	3



#define THERMAL_NAME    "mtk-thermal"



/* The number of sensing points per bank */

#define MT2701_NUM_SENSORS_PER_ZONE	3



/* 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



#define THERMAL_NAME    "mtk-thermal"



struct mtk_thermal;



struct thermal_bank_cfg {
@@ -215,6 +232,21 @@ static const int mt2701_adcpnp[MT2701_NUM_SENSORS_PER_ZONE] = { 


static const int mt2701_mux_values[MT2701_NUM_SENSORS] = { 0, 1, 16 };



/* 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 };



/**

 * The MT8173 thermal controller has four banks. Each bank can read up to

 * four temperature sensors simultaneously. The MT8173 has a total of 5
@@ -277,6 +309,31 @@ static const struct mtk_thermal_data mt2701_thermal_data = { 
	.sensor_mux_values = mt2701_mux_values,

};



/**

 * 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,

	.bank_data = {

		{

			.num_sensors = 4,

			.sensors = mt2712_bank_data,

		},

	},

	.msr = mt2712_msr,

	.adcpnp = mt2712_adcpnp,

	.sensor_mux_values = mt2712_mux_values,

};



/**

 * raw_to_mcelsius - convert a raw ADC value to mcelsius

 * @mt:		The thermal controller
@@ -571,6 +628,10 @@ static const struct of_device_id mtk_thermal_of_match[] = { 
	{

		.compatible = "mediatek,mt2701-thermal",

		.data = (void *)&mt2701_thermal_data,

	},

	{

		.compatible = "mediatek,mt2712-thermal",

		.data = (void *)&mt2712_thermal_data,

	}, {

	},

};
@@ -705,6 +766,7 @@ static struct platform_driver mtk_thermal_driver = { 


module_platform_driver(mtk_thermal_driver);



MODULE_AUTHOR("Louis Yu <louis.yu@mediatek.com>");

MODULE_AUTHOR("Dawei Chien <dawei.chien@mediatek.com>");

MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");

MODULE_AUTHOR("Hanyi Wu <hanyi.wu@mediatek.com>");