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rtc: rtc-coh901331: convert coh901331_driver to dev_pm_ops

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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>
This commit is contained in:
Jingoo Han 2013-04-29 16:21:00 -07:00 committed by Linus Torvalds
parent b4df8f6ca1
commit 62068e2c45
1 changed files with 11 additions and 13 deletions
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24
drivers/rtc/rtc-coh901331.c
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@ -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,
};