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Date: Tue, 8 May 2012 21:48:18 +0530
From: Amit Daniel Kachhap <amit.kachhap@...aro.org>
To: akpm@...ux-foundation.org, linux-pm@...ts.linux-foundation.org
Cc: durgadoss.r@...el.com, linux-acpi@...r.kernel.org, lenb@...nel.org,
rui.zhang@...el.com, amit.kachhap@...aro.org,
linaro-dev@...ts.linaro.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, patches@...aro.org
Subject: [PATCH v3 6/6] ARM: exynos: Add thermal sensor driver platform data support
This patch adds 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@...aro.org>
---
drivers/thermal/exynos_thermal.c | 107 +++++++++++++++++++++++++++++++++++++-
1 files changed, 106 insertions(+), 1 deletions(-)
diff --git a/drivers/thermal/exynos_thermal.c b/drivers/thermal/exynos_thermal.c
index f818432..3471d9d 100644
--- a/drivers/thermal/exynos_thermal.c
+++ b/drivers/thermal/exynos_thermal.c
@@ -646,14 +646,117 @@ 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 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,
+ },
+ .freq_tab[1] = {
+ .freq_clip_max = 200 * 1000,
+ },
+ .freq_tab_count = 2,
+ .type = SOC_ARCH_EXYNOS4,
+};
+#define EXYNOS4_TMU_DRV_DATA ((kernel_ulong_t)&exynos4_default_tmu_data)
+#else
+#define EXYNOS4_TMU_DRV_DATA ((kernel_ulong_t)NULL)
+#endif
+
+#if defined(CONFIG_SOC_EXYNOS5250)
+static struct exynos_tmu_platform_data 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,
+ },
+ .freq_tab[1] = {
+ .freq_clip_max = 200 * 1000,
+ },
+ .freq_tab_count = 2,
+ .type = SOC_ARCH_EXYNOS5,
+};
+#define EXYNOS5_TMU_DRV_DATA ((kernel_ulong_t)&exynos5_default_tmu_data)
+#else
+#define EXYNOS5_TMU_DRV_DATA ((kernel_ulong_t)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 = EXYNOS4_TMU_DRV_DATA,
+ },
+ {
+ .name = "exynos5-tmu",
+ .driver_data = 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;
@@ -813,11 +916,13 @@ static struct platform_driver exynos_tmu_driver = {
.driver = {
.name = "exynos-tmu",
.owner = THIS_MODULE,
+ .of_match_table = exynos_tmu_match,
},
.probe = exynos_tmu_probe,
.remove = __devexit_p(exynos_tmu_remove),
.suspend = exynos_tmu_suspend,
.resume = exynos_tmu_resume,
+ .id_table = exynos_tmu_driver_ids,
};
module_platform_driver(exynos_tmu_driver);
--
1.7.1
--
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