rtc: rx8025: continue without alarm when irq request fails

Instead of bailing out, disable alarms and continue when
devm_request_threaded_irq() fails. This allows to still provide some
functionality.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

drivers/rtc/rtc-rx8025.c

@@ -533,8 +533,8 @@ static int rx8025_probe(struct i2c_client *client,
 						rx8025_handle_irq, 0, "rx8025",
 						client);
 		if (err) {
-			dev_err(&client->dev, "unable to request IRQ\n");
-			return err;
+			dev_err(&client->dev, "unable to request IRQ, alarms disabled\n");
+			client->irq = 0;
 		}
 	}