TMU probe function now checks for a device tree defined regulator.
For compatibility reasons it is allowed to probe driver even without
this regulator defined.
Signed-off-by: Lukasz Majewski <l.majewski@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/thermal/exynos_thermal.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/thermal/exynos_thermal.c b/drivers/thermal/exynos_thermal.c
index ba6094c..e922fa4 100644
--- a/drivers/thermal/exynos_thermal.c
+++ b/drivers/thermal/exynos_thermal.c
@@ -38,6 +38,7 @@
#include <linux/cpufreq.h>
#include <linux/cpu_cooling.h>
#include <linux/of.h>
+#include <linux/regulator/consumer.h>
#include <plat/cpu.h>
@@ -119,6 +120,8 @@
#define EXYNOS_ZONE_COUNT 3
+#define EXYNOS_TMU_REGULATOR "vdd_ts"
+
struct exynos_tmu_data {
struct exynos_tmu_platform_data *pdata;
struct resource *mem;
@@ -944,6 +947,7 @@ static int exynos_tmu_probe(struct platform_device *pdev)
{
struct exynos_tmu_data *data;
struct exynos_tmu_platform_data *pdata = pdev->dev.platform_data;
+ struct regulator *reg;
int ret, i;
if (!pdata)
@@ -953,6 +957,21 @@ static int exynos_tmu_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "No platform init data supplied.\n");
return -ENODEV;
}
+
+ reg = regulator_get(&pdev->dev, EXYNOS_TMU_REGULATOR);
+ if (!IS_ERR(reg)) {
+ ret = regulator_enable(reg);
+ if (ret) {
+ dev_err(&pdev->dev, "Regulator %s not enabled.\n",
+ EXYNOS_TMU_REGULATOR);
+ return ret;
+ }
+ } else {
+ dev_info(&pdev->dev,
+ "Regulator %s not defined at device tree.\n",
+ EXYNOS_TMU_REGULATOR);
+ }
+
data = devm_kzalloc(&pdev->dev, sizeof(struct exynos_tmu_data),
GFP_KERNEL);
if (!data) {
--
1.7.10.4
--
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