rtc: rtc-twl: convert twl4030rtc_driver 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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c
index 8bc6c80..8751a52 100644
--- a/drivers/rtc/rtc-twl.c
+++ b/drivers/rtc/rtc-twl.c
@@ -566,11 +566,10 @@
mask_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_TIMER_M);
}
-#ifdef CONFIG_PM
-
+#ifdef CONFIG_PM_SLEEP
static unsigned char irqstat;
-static int twl_rtc_suspend(struct platform_device *pdev, pm_message_t state)
+static int twl_rtc_suspend(struct device *dev)
{
irqstat = rtc_irq_bits;
@@ -578,17 +577,15 @@
return 0;
}
-static int twl_rtc_resume(struct platform_device *pdev)
+static int twl_rtc_resume(struct device *dev)
{
set_rtc_irq_bit(irqstat);
return 0;
}
-
-#else
-#define twl_rtc_suspend NULL
-#define twl_rtc_resume NULL
#endif
+static SIMPLE_DEV_PM_OPS(twl_rtc_pm_ops, twl_rtc_suspend, twl_rtc_resume);
+
#ifdef CONFIG_OF
static const struct of_device_id twl_rtc_of_match[] = {
{.compatible = "ti,twl4030-rtc", },
@@ -603,11 +600,10 @@
.probe = twl_rtc_probe,
.remove = twl_rtc_remove,
.shutdown = twl_rtc_shutdown,
- .suspend = twl_rtc_suspend,
- .resume = twl_rtc_resume,
.driver = {
.owner = THIS_MODULE,
.name = "twl_rtc",
+ .pm = &twl_rtc_pm_ops,
.of_match_table = of_match_ptr(twl_rtc_of_match),
},
};