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authorAnson Huang <anson.huang@nxp.com>2019-04-11 05:06:04 +0300
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2019-04-12 00:18:32 +0300
commitbc0e731fc2893f96037ef5125e40fd28c6b97bd9 (patch)
treedc96abdb78cd7a0e3fab254cd5666bc20540967e /drivers/rtc/rtc-mxc.c
parent862cac15d2e9d6ade85d77cf9816743b6c0965df (diff)
downloadlinux-bc0e731fc2893f96037ef5125e40fd28c6b97bd9.tar.xz
rtc: mxc: use dev_pm_set_wake_irq() to simplify code
With calling dev_pm_set_wake_irq() to set MXC 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@nxp.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc/rtc-mxc.c')
-rw-r--r--drivers/rtc/rtc-mxc.c32
1 files changed, 6 insertions, 26 deletions
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index 28a15bd11538..708b9e9b86a6 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -8,6 +8,7 @@
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
+#include <linux/pm_wakeirq.h>
#include <linux/clk.h>
#include <linux/of.h>
#include <linux/of_device.h>
@@ -394,8 +395,12 @@ static int mxc_rtc_probe(struct platform_device *pdev)
pdata->irq = -1;
}
- if (pdata->irq >= 0)
+ if (pdata->irq >= 0) {
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");
+ }
rtc = devm_rtc_device_register(&pdev->dev, pdev->name, &mxc_rtc_ops,
THIS_MODULE);
@@ -426,35 +431,10 @@ static int mxc_rtc_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int mxc_rtc_suspend(struct device *dev)
-{
- struct rtc_plat_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 rtc_plat_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 struct platform_driver mxc_rtc_driver = {
.driver = {
.name = "mxc_rtc",
.of_match_table = of_match_ptr(imx_rtc_dt_ids),
- .pm = &mxc_rtc_pm_ops,
},
.id_table = imx_rtc_devtype,
.probe = mxc_rtc_probe,