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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: Amit Daniel Kachhap <amit.kachhap@linaro.org>
Acked-by: Guenter 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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
Amit Daniel Kachhap 2012-08-16 17:11:44 +05:30 committed by Zhang Rui
parent 7e0b55e606
commit 17be868e04
1 changed files with 110 additions and 1 deletions
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111
drivers/thermal/exynos_thermal.c
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@ -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);