ARM: exynos: add thermal sensor driver platform data support

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

Signed-off-by: Amit Daniel Kachhap <amit.kachhap@linaro.org>
Cc: Donggeun Kim <dg77.kim@samsung.com>
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: Kyungmin Park <kmpark@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/drivers/thermal/exynos_thermal.c b/drivers/thermal/exynos_thermal.c
index 9ef8c375dec96b7461b75d1dd2c3d8dbc6087e5d..07736eae73b2636d12e81683ef4c773f6d6e027f 100644 (file)
--- a/drivers/thermal/exynos_thermal.c
+++ b/drivers/thermal/exynos_thermal.c
@@ -662,14 +662,121 @@ 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 exynos4_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_EXYNOS4,
+};
+#define EXYNOS4_TMU_DRV_DATA (&exynos4_default_tmu_data)
+#else
+#define EXYNOS4_TMU_DRV_DATA (NULL)
+#endif
+
+#if defined(CONFIG_SOC_EXYNOS5250)
+static struct exynos_tmu_platform_data const exynos5_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_EXYNOS5,
+};
+#define EXYNOS5_TMU_DRV_DATA (&exynos5_default_tmu_data)
+#else
+#define EXYNOS5_TMU_DRV_DATA (NULL)
+#endif
+
+#ifdef CONFIG_OF
+static const struct of_device_id exynos_tmu_match[] = {
+       {
+               .compatible = "samsung,exynos4-tmu",
+               .data = (void *)EXYNOS4_TMU_DRV_DATA,
+       },
+       {
+               .compatible = "samsung,exynos5-tmu",
+               .data = (void *)EXYNOS5_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           = "exynos4-tmu",
+               .driver_data    = (kernel_ulong_t)EXYNOS4_TMU_DRV_DATA,
+       },
+       {
+               .name           = "exynos5-tmu",
+               .driver_data    = (kernel_ulong_t)EXYNOS5_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;
@@ -838,9 +945,11 @@ 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);