1 files changed, 16 insertions, 28 deletions

diff --git a/drivers/rtc/rtc-tps65910.c b/drivers/rtc/rtc-tps65910.c
index e5fef141a0e2..8bd8115329b5 100644
--- a/drivers/rtc/rtc-tps65910.c
+++ b/drivers/rtc/rtc-tps65910.c
@@ -22,13 +22,13 @@
 #include <linux/rtc.h>
 #include <linux/bcd.h>
 #include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/interrupt.h>
 #include <linux/mfd/tps65910.h>
 
 struct tps65910_rtc {
         struct rtc_device       *rtc;
-        /* To store the list of enabled interrupts */
-        u32 irqstat;
+        int irq;
 };
 
 /* Total number of RTC registers needed to set time*/
@@ -267,13 +267,14 @@ static int tps65910_rtc_probe(struct platform_device *pdev)
         }
 
         ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
-                tps65910_rtc_interrupt, IRQF_TRIGGER_LOW,
+                tps65910_rtc_interrupt, IRQF_TRIGGER_LOW | IRQF_EARLY_RESUME,
                 dev_name(&pdev->dev), &pdev->dev);
         if (ret < 0) {
                 dev_err(&pdev->dev, "IRQ is not free.\n");
                 return ret;
         }
-        device_init_wakeup(&pdev->dev, 1);
+        tps_rtc->irq = irq;
+        device_set_wakeup_capable(&pdev->dev, 1);
 
         tps_rtc->rtc = rtc_device_register(pdev->name, &pdev->dev,
                 &tps65910_rtc_ops, THIS_MODULE);
@@ -304,49 +305,36 @@ static int tps65910_rtc_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM_SLEEP
-
 static int tps65910_rtc_suspend(struct device *dev)
 {
-        struct tps65910 *tps = dev_get_drvdata(dev->parent);
-        u8 alarm = TPS65910_RTC_INTERRUPTS_IT_ALARM;
-        int ret;
-
-        /* Store current list of enabled interrupts*/
-        ret = regmap_read(tps->regmap, TPS65910_RTC_INTERRUPTS,
-                &tps->rtc->irqstat);
-        if (ret < 0)
-                return ret;
+        struct tps65910_rtc *tps_rtc = dev_get_drvdata(dev);
 
-        /* Enable RTC ALARM interrupt only */
-        return regmap_write(tps->regmap, TPS65910_RTC_INTERRUPTS, alarm);
+        if (device_may_wakeup(dev))
+                enable_irq_wake(tps_rtc->irq);
+        return 0;
 }
 
 static int tps65910_rtc_resume(struct device *dev)
 {
-        struct tps65910 *tps = dev_get_drvdata(dev->parent);
+        struct tps65910_rtc *tps_rtc = dev_get_drvdata(dev);
 
-        /* Restore list of enabled interrupts before suspend */
-        return regmap_write(tps->regmap, TPS65910_RTC_INTERRUPTS,
-                tps->rtc->irqstat);
+        if (device_may_wakeup(dev))
+                disable_irq_wake(tps_rtc->irq);
+        return 0;
 }
+#endif
 
 static const struct dev_pm_ops tps65910_rtc_pm_ops = {
-        .suspend        = tps65910_rtc_suspend,
-        .resume         = tps65910_rtc_resume,
+        SET_SYSTEM_SLEEP_PM_OPS(tps65910_rtc_suspend, tps65910_rtc_resume)
 };
 
-#define DEV_PM_OPS     (&tps65910_rtc_pm_ops)
-#else
-#define DEV_PM_OPS     NULL
-#endif
-
 static struct platform_driver tps65910_rtc_driver = {
         .probe          = tps65910_rtc_probe,
         .remove         = tps65910_rtc_remove,
         .driver         = {
                 .owner  = THIS_MODULE,
                 .name   = "tps65910-rtc",
-                .pm     = DEV_PM_OPS,
+                .pm     = &tps65910_rtc_pm_ops,
         },
 };