rtc: pcf2123: use IRQ flags obtained from fwnode

Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.

Link: https://lore.kernel.org/r/20230123200217.1236011-5-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c
index e13b5e695d06a725ef6edb18972dc95ac8c6d84e..e714661e61a916707fc4be148540823ba7463fe5 100644 (file)
--- a/drivers/rtc/rtc-pcf2123.c
+++ b/drivers/rtc/rtc-pcf2123.c
@@ -413,9 +413,14 @@ static int pcf2123_probe(struct spi_device *spi)
 
        /* Register alarm irq */
        if (spi->irq > 0) {
+               unsigned long irqflags = IRQF_TRIGGER_LOW;
+
+               if (dev_fwnode(&spi->dev))
+                       irqflags = 0;
+
                ret = devm_request_threaded_irq(&spi->dev, spi->irq, NULL,
                                pcf2123_rtc_irq,
-                               IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+                               irqflags | IRQF_ONESHOT,
                                pcf2123_driver.driver.name, &spi->dev);
                if (!ret)
                        device_init_wakeup(&spi->dev, true);