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Commit 17be868e authored by Amit Daniel Kachhap's avatar Amit Daniel Kachhap Committed by Zhang Rui
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ARM: exynos: add thermal sensor driver platform data support 



Add necessary default platform data support needed for TMU driver.  The
supplied dt/non-dt values are tested for origen exynos4210 and smdk exynos5250
platforms and only compile tested for exynos4412.

Signed-off-by: default avatarAmit Daniel Kachhap <amit.kachhap@linaro.org>
Acked-by: default avatarGuenter Roeck <guenter.roeck@ericsson.com>
Cc: SangWook Ju <sw.ju@samsung.com>
Cc: Durgadoss <durgadoss.r@intel.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: jonghwa lee <jonghwa3.lee@samsung.com>
Cc: Kyungmin Park <kmpark@infradead.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarAmit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
parent 7e0b55e6

drivers/thermal/exynos_thermal.c

+110 −1
Original line number Diff line number Diff line
@@ -723,14 +723,121 @@ static irqreturn_t exynos_tmu_irq(int irq, void *id) 
static struct thermal_sensor_conf exynos_sensor_conf = {

	.name			= "exynos-therm",

	.read_temperature	= (int (*)(void *))exynos_tmu_read,

};



#if defined(CONFIG_CPU_EXYNOS4210)

static struct exynos_tmu_platform_data const exynos4210_default_tmu_data = {

	.threshold = 80,

	.trigger_levels[0] = 5,

	.trigger_levels[1] = 20,

	.trigger_levels[2] = 30,

	.trigger_level0_en = 1,

	.trigger_level1_en = 1,

	.trigger_level2_en = 1,

	.trigger_level3_en = 0,

	.gain = 15,

	.reference_voltage = 7,

	.cal_type = TYPE_ONE_POINT_TRIMMING,

	.freq_tab[0] = {

		.freq_clip_max = 800 * 1000,

		.temp_level = 85,

	},

	.freq_tab[1] = {

		.freq_clip_max = 200 * 1000,

		.temp_level = 100,

	},

	.freq_tab_count = 2,

	.type = SOC_ARCH_EXYNOS4210,

};

#define EXYNOS4210_TMU_DRV_DATA (&exynos4210_default_tmu_data)

#else

#define EXYNOS4210_TMU_DRV_DATA (NULL)

#endif



#if defined(CONFIG_SOC_EXYNOS5250) || defined(CONFIG_SOC_EXYNOS4412)

static struct exynos_tmu_platform_data const exynos_default_tmu_data = {

	.trigger_levels[0] = 85,

	.trigger_levels[1] = 103,

	.trigger_levels[2] = 110,

	.trigger_level0_en = 1,

	.trigger_level1_en = 1,

	.trigger_level2_en = 1,

	.trigger_level3_en = 0,

	.gain = 8,

	.reference_voltage = 16,

	.noise_cancel_mode = 4,

	.cal_type = TYPE_ONE_POINT_TRIMMING,

	.efuse_value = 55,

	.freq_tab[0] = {

		.freq_clip_max = 800 * 1000,

		.temp_level = 85,

	},

	.freq_tab[1] = {

		.freq_clip_max = 200 * 1000,

		.temp_level = 103,

	},

	.freq_tab_count = 2,

	.type = SOC_ARCH_EXYNOS,

};

#define EXYNOS_TMU_DRV_DATA (&exynos_default_tmu_data)

#else

#define EXYNOS_TMU_DRV_DATA (NULL)

#endif



#ifdef CONFIG_OF

static const struct of_device_id exynos_tmu_match[] = {

	{

		.compatible = "samsung,exynos4210-tmu",

		.data = (void *)EXYNOS4210_TMU_DRV_DATA,

	},

	{

		.compatible = "samsung,exynos5250-tmu",

		.data = (void *)EXYNOS_TMU_DRV_DATA,

	},

	{},

};

MODULE_DEVICE_TABLE(of, exynos_tmu_match);

#else

#define  exynos_tmu_match NULL

#endif



static struct platform_device_id exynos_tmu_driver_ids[] = {

	{

		.name		= "exynos4210-tmu",

		.driver_data    = (kernel_ulong_t)EXYNOS4210_TMU_DRV_DATA,

	},

	{

		.name		= "exynos5250-tmu",

		.driver_data    = (kernel_ulong_t)EXYNOS_TMU_DRV_DATA,

	},

	{ },

};

MODULE_DEVICE_TABLE(platform, exynos4_tmu_driver_ids);



static inline struct  exynos_tmu_platform_data *exynos_get_driver_data(

			struct platform_device *pdev)

{

#ifdef CONFIG_OF

	if (pdev->dev.of_node) {

		const struct of_device_id *match;

		match = of_match_node(exynos_tmu_match, pdev->dev.of_node);

		if (!match)

			return NULL;

		return (struct exynos_tmu_platform_data *) match->data;

	}

#endif

	return (struct exynos_tmu_platform_data *)

			platform_get_device_id(pdev)->driver_data;

}

;

static int __devinit exynos_tmu_probe(struct platform_device *pdev)

{

	struct exynos_tmu_data *data;

	struct exynos_tmu_platform_data *pdata = pdev->dev.platform_data;

	int ret, i;



	if (!pdata)

		pdata = exynos_get_driver_data(pdev);



	if (!pdata) {

		dev_err(&pdev->dev, "No platform init data supplied.\n");

		return -ENODEV;
@@ -899,9 +1006,11 @@ static struct platform_driver exynos_tmu_driver = { 
		.name   = "exynos-tmu",

		.owner  = THIS_MODULE,

		.pm     = EXYNOS_TMU_PM,

		.of_match_table = exynos_tmu_match,

	},

	.probe = exynos_tmu_probe,

	.remove	= __devexit_p(exynos_tmu_remove),

	.id_table = exynos_tmu_driver_ids,

};



module_platform_driver(exynos_tmu_driver);