With calling dev_pm_set_wake_irq() to set MXC_V2 RTC as wakeup source
for suspend, generic wake irq mechanism will automatically enable
it as wakeup source when suspend, then the suspend/resume callback
which are ONLY for enabling/disabling irq wake can be removed, it
simplifies the code.
Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx>
---
drivers/rtc/rtc-mxc_v2.c | 29 ++++-------------------------
1 file changed, 4 insertions(+), 25 deletions(-)
diff --git a/drivers/rtc/rtc-mxc_v2.c b/drivers/rtc/rtc-mxc_v2.c
index 007879a..5b970a8 100644
--- a/drivers/rtc/rtc-mxc_v2.c
+++ b/drivers/rtc/rtc-mxc_v2.c
@@ -10,6 +10,7 @@
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
+#include <linux/pm_wakeirq.h>
#include <linux/rtc.h>
#define SRTC_LPPDR_INIT 0x41736166 /* init for glitch detect */
@@ -305,6 +306,9 @@ static int mxc_rtc_probe(struct platform_device *pdev)
return pdata->irq;
device_init_wakeup(&pdev->dev, 1);
+ ret = dev_pm_set_wake_irq(&pdev->dev, pdata->irq);
+ if (ret)
+ dev_err(&pdev->dev, "failed to enable irq wake\n");
ret = clk_prepare_enable(pdata->clk);
if (ret)
@@ -367,30 +371,6 @@ static int mxc_rtc_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int mxc_rtc_suspend(struct device *dev)
-{
- struct mxc_rtc_data *pdata = dev_get_drvdata(dev);
-
- if (device_may_wakeup(dev))
- enable_irq_wake(pdata->irq);
-
- return 0;
-}
-
-static int mxc_rtc_resume(struct device *dev)
-{
- struct mxc_rtc_data *pdata = dev_get_drvdata(dev);
-
- if (device_may_wakeup(dev))
- disable_irq_wake(pdata->irq);
-
- return 0;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(mxc_rtc_pm_ops, mxc_rtc_suspend, mxc_rtc_resume);
-
static const struct of_device_id mxc_ids[] = {
{ .compatible = "fsl,imx53-rtc", },
{}
@@ -400,7 +380,6 @@ static struct platform_driver mxc_rtc_driver = {
.driver = {
.name = "mxc_rtc_v2",
.of_match_table = mxc_ids,
- .pm = &mxc_rtc_pm_ops,
},
.probe = mxc_rtc_probe,
.remove = mxc_rtc_remove,
--
2.7.4
