[PATCH RESEND 3/8] rtc: rtc-coh901331: convert coh901331_driver todev_pm_ops

From: Jingoo Han
Date: Tue Apr 16 2013 - 21:07:42 EST


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@xxxxxxxxxxx>
---
drivers/rtc/rtc-coh901331.c | 24 +++++++++++-------------
1 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/drivers/rtc/rtc-coh901331.c b/drivers/rtc/rtc-coh901331.c
index bf0387f..93c0658 100644
--- a/drivers/rtc/rtc-coh901331.c
+++ b/drivers/rtc/rtc-coh901331.c
@@ -47,7 +47,7 @@ struct coh901331_port {
u32 physize;
void __iomem *virtbase;
int irq;
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
u32 irqmaskstore;
#endif
};
@@ -225,17 +225,17 @@ static int __init coh901331_probe(struct platform_device *pdev)
return ret;
}

-#ifdef CONFIG_PM
-static int coh901331_suspend(struct platform_device *pdev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int coh901331_suspend(struct device *dev)
{
- struct coh901331_port *rtap = dev_get_drvdata(&pdev->dev);
+ struct coh901331_port *rtap = dev_get_drvdata(dev);

/*
* If this RTC alarm will be used for waking the system up,
* don't disable it of course. Else we just disable the alarm
* and await suspension.
*/
- if (device_may_wakeup(&pdev->dev)) {
+ if (device_may_wakeup(dev)) {
enable_irq_wake(rtap->irq);
} else {
clk_enable(rtap->clk);
@@ -247,12 +247,12 @@ static int coh901331_suspend(struct platform_device *pdev, pm_message_t state)
return 0;
}

-static int coh901331_resume(struct platform_device *pdev)
+static int coh901331_resume(struct device *dev)
{
- struct coh901331_port *rtap = dev_get_drvdata(&pdev->dev);
+ struct coh901331_port *rtap = dev_get_drvdata(dev);

clk_prepare(rtap->clk);
- if (device_may_wakeup(&pdev->dev)) {
+ if (device_may_wakeup(dev)) {
disable_irq_wake(rtap->irq);
} else {
clk_enable(rtap->clk);
@@ -261,11 +261,10 @@ static int coh901331_resume(struct platform_device *pdev)
}
return 0;
}
-#else
-#define coh901331_suspend NULL
-#define coh901331_resume NULL
#endif

+static SIMPLE_DEV_PM_OPS(coh901331_pm_ops, coh901331_suspend, coh901331_resume);
+
static void coh901331_shutdown(struct platform_device *pdev)
{
struct coh901331_port *rtap = dev_get_drvdata(&pdev->dev);
@@ -279,10 +278,9 @@ static struct platform_driver coh901331_driver = {
.driver = {
.name = "rtc-coh901331",
.owner = THIS_MODULE,
+ .pm = &coh901331_pm_ops,
},
.remove = __exit_p(coh901331_remove),
- .suspend = coh901331_suspend,
- .resume = coh901331_resume,
.shutdown = coh901331_shutdown,
};

--
1.7.2.5


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