Merge tag 'for-v6.8-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux...

[linux-block.git] / drivers / rtc / rtc-rv8803.c

diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c
index 1a3ec1bb5b8148dd945ad127f45e657cd4c5a882..1327251e527c21cae4a247a62791ec3cbf0df067 100644 (file)
--- a/drivers/rtc/rtc-rv8803.c
+++ b/drivers/rtc/rtc-rv8803.c
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/rtc.h>
+#include <linux/pm_wakeirq.h>
 
 #define RV8803_I2C_TRY_COUNT           4
 
@@ -607,6 +608,28 @@ static int rv8803_regs_configure(struct rv8803_data *rv8803)
        return 0;
 }
 
+static int rv8803_resume(struct device *dev)
+{
+       struct rv8803_data *rv8803 = dev_get_drvdata(dev);
+
+       if (rv8803->client->irq > 0 && device_may_wakeup(dev))
+               disable_irq_wake(rv8803->client->irq);
+
+       return 0;
+}
+
+static int rv8803_suspend(struct device *dev)
+{
+       struct rv8803_data *rv8803 = dev_get_drvdata(dev);
+
+       if (rv8803->client->irq > 0 && device_may_wakeup(dev))
+               enable_irq_wake(rv8803->client->irq);
+
+       return 0;
+}
+
+static DEFINE_SIMPLE_DEV_PM_OPS(rv8803_pm_ops, rv8803_suspend, rv8803_resume);
+
 static const struct i2c_device_id rv8803_id[] = {
        { "rv8803", rv_8803 },
        { "rv8804", rx_8804 },
@@ -683,10 +706,18 @@ static int rv8803_probe(struct i2c_client *client)
                if (err) {
                        dev_warn(&client->dev, "unable to request IRQ, alarms disabled\n");
                        client->irq = 0;
+               } else {
+                       device_init_wakeup(&client->dev, true);
+                       err = dev_pm_set_wake_irq(&client->dev, client->irq);
+                       if (err)
+                               dev_err(&client->dev, "failed to set wake IRQ\n");
                }
+       } else {
+               if (device_property_read_bool(&client->dev, "wakeup-source"))
+                       device_init_wakeup(&client->dev, true);
+               else
+                       clear_bit(RTC_FEATURE_ALARM, rv8803->rtc->features);
        }
-       if (!client->irq)
-               clear_bit(RTC_FEATURE_ALARM, rv8803->rtc->features);
 
        if (of_property_read_bool(client->dev.of_node, "epson,vdet-disable"))
                rv8803->backup |= RX8900_FLAG_VDETOFF;
@@ -737,6 +768,7 @@ static struct i2c_driver rv8803_driver = {
        .driver = {
                .name = "rtc-rv8803",
                .of_match_table = of_match_ptr(rv8803_of_match),
+               .pm = &rv8803_pm_ops,
        },
        .probe          = rv8803_probe,
        .id_table       = rv8803_id,