rtc: da9063: Mark the alarm IRQ as a wake IRQ

This keeps the IRQ enabled during system suspend, if the RTC's wakeup
source is enabled. Since the IRQ is not required to wake from shutdown,
continue to add the wakeup source even if registering the wakeirq fails.
See commit 029d3a6f2f3c ("rtc: da9063: add as wakeup source").

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Link: https://lore.kernel.org/r/20230717190937.1301509-1-samuel.holland@sifive.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/rtc-da9063.c b/drivers/rtc/rtc-da9063.c
index ee2efb4961744b77942e98f984ea08403dba5c33..2f5d60622564a0d83ec3be91bf89710f34e2b1b7 100644 (file)
--- a/drivers/rtc/rtc-da9063.c
+++ b/drivers/rtc/rtc-da9063.c
@@ -11,6 +11,7 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
+#include <linux/pm_wakeirq.h>
 #include <linux/regmap.h>
 #include <linux/rtc.h>
 #include <linux/slab.h>
@@ -496,6 +497,12 @@ static int da9063_rtc_probe(struct platform_device *pdev)
                dev_err(&pdev->dev, "Failed to request ALARM IRQ %d: %d\n",
                        irq_alarm, ret);
 
+       ret = dev_pm_set_wake_irq(&pdev->dev, irq_alarm);
+       if (ret)
+               dev_warn(&pdev->dev,
+                        "Failed to set IRQ %d as a wake IRQ: %d\n",
+                        irq_alarm, ret);
+
        device_init_wakeup(&pdev->dev, true);
 
        return devm_rtc_register_device(rtc->rtc_dev);