[PATCH 2/3] thermal: Add Mediatek thermal driver for mt2701.

Keerthy a0393675 at ti.com
Mon Aug 8 22:57:56 PDT 2016



On Tuesday 09 August 2016 11:25 AM, dawei chien wrote:
> Dear Keerthy,
>
> On Mon, 2016-07-11 at 16:56 +0800, dawei chien wrote:
>> Dear Keerthy,
>>
>> On Thu, 2016-07-07 at 17:24 +0530, Keerthy wrote:
>>> Hi Dawei Chien,
>>>
>>>
>>> On Thursday 07 July 2016 02:36 PM, Dawei Chien wrote:
>>>> This patch adds support for mt2701 chip to mtk_thermal.c,
>>>> and integrate both mt8173 and mt2701 on the same driver.
>>>> MT8173 has four banks and five sensors, and MT2701 has
>>>> only one bank and three sensors.
>>>>
>>>> Signed-off-by: Dawei Chien <dawei.chien at mediatek.com>
>>>> ---
>>>>    drivers/thermal/mtk_thermal.c |  258 ++++++++++++++++++++++++++---------------
>>>>    1 file changed, 165 insertions(+), 93 deletions(-)
>>>>
>>>> diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
>>>> index 262ab0a..860f2e2 100644
>>>> --- a/drivers/thermal/mtk_thermal.c
>>>> +++ b/drivers/thermal/mtk_thermal.c
>>>> @@ -2,6 +2,7 @@
>>>>     * Copyright (c) 2015 MediaTek Inc.
>>>>     * Author: Hanyi Wu <hanyi.wu at mediatek.com>
>>>>     *         Sascha Hauer <s.hauer at pengutronix.de>
>>>> + *         Dawei Chien <dawei.chien at 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
>>>> @@ -21,6 +22,7 @@
>>>>    #include <linux/nvmem-consumer.h>
>>>>    #include <linux/of.h>
>>>>    #include <linux/of_address.h>
>>>> +#include <linux/of_device.h>
>>>>    #include <linux/platform_device.h>
>>>>    #include <linux/slab.h>
>>>>    #include <linux/io.h>
>>>> @@ -88,6 +90,7 @@
>>>>    #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
>>>> @@ -97,35 +100,62 @@
>>>>    /* 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
>>>> -
>>>>    /* Layout of the fuses providing the calibration data */
>>>> -#define MT8173_CALIB_BUF0_VALID		BIT(0)
>>>> -#define MT8173_CALIB_BUF1_ADC_GE(x)	(((x) >> 22) & 0x3ff)
>>>> -#define MT8173_CALIB_BUF0_VTS_TS1(x)	(((x) >> 17) & 0x1ff)
>>>> -#define MT8173_CALIB_BUF0_VTS_TS2(x)	(((x) >> 8) & 0x1ff)
>>>> -#define MT8173_CALIB_BUF1_VTS_TS3(x)	(((x) >> 0) & 0x1ff)
>>>> -#define MT8173_CALIB_BUF2_VTS_TS4(x)	(((x) >> 23) & 0x1ff)
>>>> -#define MT8173_CALIB_BUF2_VTS_TSABB(x)	(((x) >> 14) & 0x1ff)
>>>> -#define MT8173_CALIB_BUF0_DEGC_CALI(x)	(((x) >> 1) & 0x3f)
>>>> -#define MT8173_CALIB_BUF0_O_SLOPE(x)	(((x) >> 26) & 0x3f)
>>>> +#define CALIB_BUF0_VALID		BIT(0)
>>>> +#define CALIB_BUF1_ADC_GE(x)	(((x) >> 22) & 0x3ff)
>>>> +#define CALIB_BUF0_VTS_TS1(x)	(((x) >> 17) & 0x1ff)
>>>> +#define CALIB_BUF0_VTS_TS2(x)	(((x) >> 8) & 0x1ff)
>>>> +#define CALIB_BUF1_VTS_TS3(x)	(((x) >> 0) & 0x1ff)
>>>> +#define CALIB_BUF2_VTS_TS4(x)	(((x) >> 23) & 0x1ff)
>>>> +#define CALIB_BUF2_VTS_TS5(x)	(((x) >> 14) & 0x1ff)
>>>> +#define CALIB_BUF0_DEGC_CALI(x)	(((x) >> 1) & 0x3f)
>>>> +#define CALIB_BUF0_O_SLOPE(x)	(((x) >> 26) & 0x3f)
>>>> +
>>>
>>> IMHO the above changes from defining CALIB_BUF1_ADC_GE(x) to
>>> CALIB_BUF0_O_SLOPE(x) can be avoided. We are just renaming the same
>>> defines to a generic name. Instead the macro starting with MT8173 can
>>> only be used wherever needed commonly both by 8173 instance and for
>>> 2701 instance.
>>>
>>
>> I would have a try to keep MT8173 original one and add some comment for
>> the macro starting on next version.
>
> Just confirm again,
> we don't need change common macro name, and just need to add comment for
> MT8173/MT2701, right?

Yes

>
>>>> +#define NVMEM_TS1	0
>>>> +#define NVMEM_TS2	1
>>>> +#define NVMEM_TS3	2
>>>> +#define NVMEM_TS4	3
>>>> +#define NVMEM_TS5	4
>>>> +
>>
>> Does these need to keep the old one
>> MT8173_TS1/MT8173_TS2/MT8173_TS3/MT8173_TS4/MT8173_TSABB
>
> MT8173 has 5 sensors, so it need 5 address for calibration data.
> And MT2701 has three sensors, so it need 3 address for that.
>
> Do you think we need either keep the original one or rename for these.
>
>>
>>
>>>> +/* 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
>>>>
>>>>    #define THERMAL_NAME    "mtk-thermal"
>>>>
>>>> +/* Maximum support banks */
>>>> +#define MAX_NUM_BANK		5
>>>
>>> Why is this 5?
>>> Commit message states: MT8173 has four banks and five sensors, and
>>> MT2701 has only one bank and three sensors. Am i missing something here?
>>>
>>
>> This is my miss, it should be 4, but it line might remove since I would
>> depend on SoC type to assign array for next version.
>>
>>>> +
>>>>    struct mtk_thermal;
>>>>
>>>> +struct thermal_bank_cfg {
>>>> +	unsigned int num_sensors;
>>>> +	unsigned int sensors[MAX_NUM_BANK];
>>>> +};
>>>> +
>>>>    struct mtk_thermal_bank {
>>>>    	struct mtk_thermal *mt;
>>>>    	int id;
>>>>    };
>>>>
>>>> +struct mtk_thermal_sense_point {
>>>> +	int msr;
>>>> +	int adcpnp;
>>>> +};
>>>> +
>>>> +struct mtk_thermal_data {
>>>> +	struct thermal_bank_cfg bank_data[MAX_NUM_BANK];
>>>
>>> So for MT8173 we are allocating one bank extra and for MT2701 we are
>>> allocating 4 banks extra right? Why not do something like this:
>>>
>>> struct thermal_bank *banks_data
>>> Assign the array based on the SoC type?
>>>
>>
>> Yes, I agree with you, I would update it on next version.
>>
>>>> +	struct mtk_thermal_sense_point sensing_points[MAX_NUM_BANK];
>>>> +	int sensor_mux_values[MAX_NUM_BANK];
>>>> +	s32 num_banks;
>>>> +	s32 num_sensors;
>>>> +	s32 auxadc_channel;
>>>> +};
>>>> +
>>>>    struct mtk_thermal {
>>>>    	struct device *dev;
>>>>    	void __iomem *thermal_base;
>>>> @@ -133,27 +163,20 @@ struct mtk_thermal {
>>>>    	struct clk *clk_peri_therm;
>>>>    	struct clk *clk_auxadc;
>>>>
>>>> -	struct mtk_thermal_bank banks[MT8173_NUM_ZONES];
>>>> -
>>>> +	struct mtk_thermal_bank banks[MAX_NUM_BANK];
>>>
>>> Here again some extra memory allocation.
>>>
>>> Why not keep a pointer which points to the desired array?
>>>
>>>> +	const struct mtk_thermal_data *conf;
>>>>    	/* lock: for getting and putting banks */
>>>>    	struct mutex lock;
>>>> +	struct thermal_zone_device *tzd;
>>>>
>>>>    	/* Calibration values */
>>>>    	s32 adc_ge;
>>>>    	s32 degc_cali;
>>>>    	s32 o_slope;
>>>> -	s32 vts[MT8173_NUM_SENSORS];
>>>> -
>>>> -};
>>>> -
>>>> -struct mtk_thermal_bank_cfg {
>>>> -	unsigned int num_sensors;
>>>> -	unsigned int sensors[MT8173_NUM_SENSORS_PER_ZONE];
>>>> +	s32 vts[MAX_NUM_BANK];
>>>>    };
>>>>
>>>> -static const int sensor_mux_values[MT8173_NUM_SENSORS] = { 0, 1, 2, 3, 16 };
>>>> -
>>>> -/*
>>>> +/**
>>>>     * 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
>>>> @@ -166,42 +189,76 @@ static const int sensor_mux_values[MT8173_NUM_SENSORS] = { 0, 1, 2, 3, 16 };
>>>>     * data, and this indeed needs the temperatures of the individual banks
>>>>     * for making better decisions.
>>>>     */
>>>> -static const struct mtk_thermal_bank_cfg bank_data[] = {
>>>> -	{
>>>> -		.num_sensors = 2,
>>>> -		.sensors = { MT8173_TS2, MT8173_TS3 },
>>>> -	}, {
>>>> -		.num_sensors = 2,
>>>> -		.sensors = { MT8173_TS2, MT8173_TS4 },
>>>> -	}, {
>>>> -		.num_sensors = 3,
>>>> -		.sensors = { MT8173_TS1, MT8173_TS2, MT8173_TSABB },
>>>> -	}, {
>>>> -		.num_sensors = 1,
>>>> -		.sensors = { MT8173_TS2 },
>>>> +static const struct mtk_thermal_data mt8173_thermal_data = {
>>>> +	.auxadc_channel = MT8173_TEMP_AUXADC_CHANNEL,
>>>> +	.num_banks = 4,
>>>> +	.num_sensors = 5,
>>>> +	.bank_data = {
>>>> +		{
>>>> +			.num_sensors = 2,
>>>> +			.sensors = { MT8173_TS2, MT8173_TS3 },
>>>> +		}, {
>>>> +			.num_sensors = 2,
>>>> +			.sensors = { MT8173_TS2, MT8173_TS4 },
>>>> +		}, {
>>>> +			.num_sensors = 3,
>>>> +			.sensors = { MT8173_TS1, MT8173_TS2, MT8173_TSABB },
>>>> +		}, {
>>>> +			.num_sensors = 1,
>>>> +			.sensors = { MT8173_TS2 },
>>>> +		},
>>>>    	},
>>>> +	.sensing_points = {
>>>> +		{
>>>> +			.msr = TEMP_MSR0,
>>>> +			.adcpnp = TEMP_ADCPNP0,
>>>> +		}, {
>>>> +			.msr = TEMP_MSR1,
>>>> +			.adcpnp = TEMP_ADCPNP1,
>>>> +		}, {
>>>> +			.msr = TEMP_MSR2,
>>>> +			.adcpnp = TEMP_ADCPNP2,
>>>> +		}, {
>>>> +			.msr = TEMP_MSR3,
>>>> +			.adcpnp = TEMP_ADCPNP3,
>>>> +		},
>>>> +	},
>>>> +	.sensor_mux_values = { 0, 1, 2, 3, 16 },
>>>>    };
>>>>
>>>> -struct mtk_thermal_sense_point {
>>>> -	int msr;
>>>> -	int adcpnp;
>>>> -};
>>>> -
>>>> -static const struct mtk_thermal_sense_point
>>>> -		sensing_points[MT8173_NUM_SENSORS_PER_ZONE] = {
>>>> -	{
>>>> -		.msr = TEMP_MSR0,
>>>> -		.adcpnp = TEMP_ADCPNP0,
>>>> -	}, {
>>>> -		.msr = TEMP_MSR1,
>>>> -		.adcpnp = TEMP_ADCPNP1,
>>>> -	}, {
>>>> -		.msr = TEMP_MSR2,
>>>> -		.adcpnp = TEMP_ADCPNP2,
>>>> -	}, {
>>>> -		.msr = TEMP_MSR3,
>>>> -		.adcpnp = TEMP_ADCPNP3,
>>>> +/**
>>>> + * 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 = 3,
>>>> +	.bank_data = {
>>>> +		{
>>>> +			.num_sensors = 3,
>>>> +			.sensors = { MT2701_TS1, MT2701_TS2, MT2701_TSABB },
>>>> +		},
>>>>    	},
>>>> +	.sensing_points = {
>>>> +		{
>>>> +			.msr = TEMP_MSR0,
>>>> +			.adcpnp = TEMP_ADCPNP0,
>>>> +		}, {
>>>> +			.msr = TEMP_MSR1,
>>>> +			.adcpnp = TEMP_ADCPNP1,
>>>> +		}, {
>>>> +			.msr = TEMP_MSR2,
>>>> +			.adcpnp = TEMP_ADCPNP2,
>>>> +		},
>>>> +	},
>>>> +	.sensor_mux_values = { 0, 1, 16},
>>>>    };
>>>>
>>>>    /**
>>>> @@ -270,13 +327,15 @@ static void mtk_thermal_put_bank(struct mtk_thermal_bank *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 < bank_data[bank->id].num_sensors; i++) {
>>>> -		raw = readl(mt->thermal_base + sensing_points[i].msr);
>>>> +	for (i = 0; i < conf->bank_data[bank->id].num_sensors; i++) {
>>>> +		raw = readl(mt->thermal_base + conf->sensing_points[i].msr);
>>>>
>>>> -		temp = raw_to_mcelsius(mt, bank_data[bank->id].sensors[i], raw);
>>>> +		temp = raw_to_mcelsius(mt, conf->bank_data[bank->id].sensors[i],
>>>> +				       raw);
>>>>
>>>>    		/*
>>>>    		 * The first read of a sensor often contains very high bogus
>>>> @@ -299,7 +358,7 @@ static int mtk_read_temp(void *data, int *temperature)
>>>>    	int i;
>>>>    	int tempmax = INT_MIN;
>>>>
>>>> -	for (i = 0; i < MT8173_NUM_ZONES; i++) {
>>>> +	for (i = 0; i < mt->conf->num_banks; i++) {
>>>>    		struct mtk_thermal_bank *bank = &mt->banks[i];
>>>>
>>>>    		mtk_thermal_get_bank(bank);
>>>> @@ -322,7 +381,7 @@ static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num,
>>>>    				  u32 apmixed_phys_base, u32 auxadc_phys_base)
>>>>    {
>>>>    	struct mtk_thermal_bank *bank = &mt->banks[num];
>>>> -	const struct mtk_thermal_bank_cfg *cfg = &bank_data[num];
>>>> +	const struct mtk_thermal_data *conf = mt->conf;
>>>>    	int i;
>>>>
>>>>    	bank->id = num;
>>>> @@ -368,7 +427,7 @@ static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num,
>>>>    	 * this value will be stored to TEMP_PNPMUXADDR (TEMP_SPARE0)
>>>>    	 * automatically by hw
>>>>    	 */
>>>> -	writel(BIT(MT8173_TEMP_AUXADC_CHANNEL), mt->thermal_base + TEMP_ADCMUX);
>>>> +	writel(BIT(conf->auxadc_channel), mt->thermal_base + TEMP_ADCMUX);
>>>>
>>>>    	/* AHB address for auxadc mux selection */
>>>>    	writel(auxadc_phys_base + AUXADC_CON1_CLR_V,
>>>> @@ -379,18 +438,18 @@ static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num,
>>>>    	       mt->thermal_base + TEMP_PNPMUXADDR);
>>>>
>>>>    	/* AHB value for auxadc enable */
>>>> -	writel(BIT(MT8173_TEMP_AUXADC_CHANNEL), mt->thermal_base + TEMP_ADCEN);
>>>> +	writel(BIT(conf->auxadc_channel), mt->thermal_base + TEMP_ADCEN);
>>>>
>>>>    	/* AHB address for auxadc enable (channel 0 immediate mode selected) */
>>>>    	writel(auxadc_phys_base + AUXADC_CON1_SET_V,
>>>>    	       mt->thermal_base + TEMP_ADCENADDR);
>>>>
>>>>    	/* AHB address for auxadc valid bit */
>>>> -	writel(auxadc_phys_base + AUXADC_DATA(MT8173_TEMP_AUXADC_CHANNEL),
>>>> +	writel(auxadc_phys_base + AUXADC_DATA(conf->auxadc_channel),
>>>>    	       mt->thermal_base + TEMP_ADCVALIDADDR);
>>>>
>>>>    	/* AHB address for auxadc voltage output */
>>>> -	writel(auxadc_phys_base + AUXADC_DATA(MT8173_TEMP_AUXADC_CHANNEL),
>>>> +	writel(auxadc_phys_base + AUXADC_DATA(conf->auxadc_channel),
>>>>    	       mt->thermal_base + TEMP_ADCVOLTADDR);
>>>>
>>>>    	/* read valid & voltage are at the same register */
>>>> @@ -407,11 +466,12 @@ static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num,
>>>>    	writel(TEMP_ADCWRITECTRL_ADC_MUX_WRITE,
>>>>    	       mt->thermal_base + TEMP_ADCWRITECTRL);
>>>>
>>>> -	for (i = 0; i < cfg->num_sensors; i++)
>>>> -		writel(sensor_mux_values[cfg->sensors[i]],
>>>> -		       mt->thermal_base + sensing_points[i].adcpnp);
>>>> +	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->sensing_points[i].adcpnp);
>>>>
>>>> -	writel((1 << cfg->num_sensors) - 1, mt->thermal_base + TEMP_MONCTL0);
>>>> +	writel((1 << conf->bank_data[num].num_sensors) - 1,
>>>> +	       mt->thermal_base + TEMP_MONCTL0);
>>>>
>>>>    	writel(TEMP_ADCWRITECTRL_ADC_PNP_WRITE |
>>>>    	       TEMP_ADCWRITECTRL_ADC_MUX_WRITE,
>>>> @@ -442,7 +502,7 @@ static int mtk_thermal_get_calibration_data(struct device *dev,
>>>>
>>>>    	/* Start with default values */
>>>>    	mt->adc_ge = 512;
>>>> -	for (i = 0; i < MT8173_NUM_SENSORS; i++)
>>>> +	for (i = 0; i < mt->conf->num_sensors; i++)
>>>>    		mt->vts[i] = 260;
>>>>    	mt->degc_cali = 40;
>>>>    	mt->o_slope = 0;
>>>> @@ -467,15 +527,15 @@ static int mtk_thermal_get_calibration_data(struct device *dev,
>>>>    		goto out;
>>>>    	}
>>>>
>>>> -	if (buf[0] & MT8173_CALIB_BUF0_VALID) {
>>>> -		mt->adc_ge = MT8173_CALIB_BUF1_ADC_GE(buf[1]);
>>>> -		mt->vts[MT8173_TS1] = MT8173_CALIB_BUF0_VTS_TS1(buf[0]);
>>>> -		mt->vts[MT8173_TS2] = MT8173_CALIB_BUF0_VTS_TS2(buf[0]);
>>>> -		mt->vts[MT8173_TS3] = MT8173_CALIB_BUF1_VTS_TS3(buf[1]);
>>>> -		mt->vts[MT8173_TS4] = MT8173_CALIB_BUF2_VTS_TS4(buf[2]);
>>>> -		mt->vts[MT8173_TSABB] = MT8173_CALIB_BUF2_VTS_TSABB(buf[2]);
>>>> -		mt->degc_cali = MT8173_CALIB_BUF0_DEGC_CALI(buf[0]);
>>>> -		mt->o_slope = MT8173_CALIB_BUF0_O_SLOPE(buf[0]);
>>>> +	if (buf[0] & CALIB_BUF0_VALID) {
>>>> +		mt->adc_ge = CALIB_BUF1_ADC_GE(buf[1]);
>>>> +		mt->vts[NVMEM_TS1] = CALIB_BUF0_VTS_TS1(buf[0]);
>>>> +		mt->vts[NVMEM_TS2] = CALIB_BUF0_VTS_TS2(buf[0]);
>>>> +		mt->vts[NVMEM_TS3] = CALIB_BUF1_VTS_TS3(buf[1]);
>>>> +		mt->vts[NVMEM_TS4] = CALIB_BUF2_VTS_TS4(buf[1]);
>>>> +		mt->vts[NVMEM_TS5] = CALIB_BUF2_VTS_TS5(buf[2]);
>>>> +		mt->degc_cali = CALIB_BUF0_DEGC_CALI(buf[0]);
>>>> +		mt->o_slope = CALIB_BUF0_O_SLOPE(buf[0]);
>>>
>>> I guess even the above code changes can be avoided if we just retain
>>> macros starting with MT8173?
>>>
>>> Best Regards,
>>> Keerthy
>>>
>>
>> Yes, I think so, only different on the array size for vts since sensors
>> number different between MT8173 & MT2701, I might separate it by SoC
>> type on next version.
>>
>> BR,
>> Dawei
>>
>>>>    	} else {
>>>>    		dev_info(dev, "Device not calibrated, using default calibration values\n");
>>>>    	}
>>>> @@ -486,18 +546,36 @@ out:
>>>>    	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,
>>>> +	}, {
>>>> +	},
>>>> +};
>>>> +MODULE_DEVICE_TABLE(of, mtk_thermal_of_match);
>>>> +
>>>>    static int mtk_thermal_probe(struct platform_device *pdev)
>>>>    {
>>>>    	int ret, i;
>>>>    	struct device_node *auxadc, *apmixedsys, *np = pdev->dev.of_node;
>>>>    	struct mtk_thermal *mt;
>>>>    	struct resource *res;
>>>> +	const struct of_device_id *of_id;
>>>>    	u64 auxadc_phys_base, apmixed_phys_base;
>>>>
>>>>    	mt = devm_kzalloc(&pdev->dev, sizeof(*mt), GFP_KERNEL);
>>>>    	if (!mt)
>>>>    		return -ENOMEM;
>>>>
>>>> +	of_id = of_match_device(mtk_thermal_of_match, &pdev->dev);
>>>> +	if (of_id)
>>>> +		mt->conf = (const struct mtk_thermal_data *)of_id->data;
>>>> +
>>>>    	mt->clk_peri_therm = devm_clk_get(&pdev->dev, "therm");
>>>>    	if (IS_ERR(mt->clk_peri_therm))
>>>>    		return PTR_ERR(mt->clk_peri_therm);
>>>> @@ -565,7 +643,7 @@ static int mtk_thermal_probe(struct platform_device *pdev)
>>>>    		goto err_disable_clk_auxadc;
>>>>    	}
>>>>
>>>> -	for (i = 0; i < MT8173_NUM_ZONES; i++)
>>>> +	for (i = 0; i < mt->conf->num_banks; i++)
>>>>    		mtk_thermal_init_bank(mt, i, apmixed_phys_base,
>>>>    				      auxadc_phys_base);
>>>>
>>>> @@ -592,13 +670,6 @@ static int mtk_thermal_remove(struct platform_device *pdev)
>>>>    	return 0;
>>>>    }
>>>>
>>>> -static const struct of_device_id mtk_thermal_of_match[] = {
>>>> -	{
>>>> -		.compatible = "mediatek,mt8173-thermal",
>>>> -	}, {
>>>> -	},
>>>> -};
>>>> -
>>>>    static struct platform_driver mtk_thermal_driver = {
>>>>    	.probe = mtk_thermal_probe,
>>>>    	.remove = mtk_thermal_remove,
>>>> @@ -610,6 +681,7 @@ static struct platform_driver mtk_thermal_driver = {
>>>>
>>>>    module_platform_driver(mtk_thermal_driver);
>>>>
>>>> +MODULE_AUTHOR("Dawei Chien <dawei.chien at mediatek.com>");
>>>>    MODULE_AUTHOR("Sascha Hauer <s.hauer at pengutronix.de>");
>>>>    MODULE_AUTHOR("Hanyi Wu <hanyi.wu at mediatek.com>");
>>>>    MODULE_DESCRIPTION("Mediatek thermal driver");
>>>>
>>
>
>



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