pwm: samsung: convert s3c_pwm to dev_pm_ops
Instead of using legacy suspend/resume methods, using newer dev_pm_ops
structure allows better control over power management.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c
index 5207e6c..a0ece50 100644
--- a/drivers/pwm/pwm-samsung.c
+++ b/drivers/pwm/pwm-samsung.c
@@ -289,10 +289,10 @@
return 0;
}
-#ifdef CONFIG_PM
-static int s3c_pwm_suspend(struct platform_device *pdev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int s3c_pwm_suspend(struct device *dev)
{
- struct s3c_chip *s3c = platform_get_drvdata(pdev);
+ struct s3c_chip *s3c = dev_get_drvdata(dev);
/* No one preserve these values during suspend so reset them
* Otherwise driver leaves PWM unconfigured if same values
@@ -304,9 +304,9 @@
return 0;
}
-static int s3c_pwm_resume(struct platform_device *pdev)
+static int s3c_pwm_resume(struct device *dev)
{
- struct s3c_chip *s3c = platform_get_drvdata(pdev);
+ struct s3c_chip *s3c = dev_get_drvdata(dev);
unsigned long tcon;
/* Restore invertion */
@@ -316,21 +316,19 @@
return 0;
}
-
-#else
-#define s3c_pwm_suspend NULL
-#define s3c_pwm_resume NULL
#endif
+static SIMPLE_DEV_PM_OPS(s3c_pwm_pm_ops, s3c_pwm_suspend,
+ s3c_pwm_resume);
+
static struct platform_driver s3c_pwm_driver = {
.driver = {
.name = "s3c24xx-pwm",
.owner = THIS_MODULE,
+ .pm = &s3c_pwm_pm_ops,
},
.probe = s3c_pwm_probe,
.remove = s3c_pwm_remove,
- .suspend = s3c_pwm_suspend,
- .resume = s3c_pwm_resume,
};
static int __init pwm_init(void)