rtc: hym8563: make the irq optional
Sometimes the irq line is not connected to any soc-pin. This does
not hinder basic timekeeping functionality of the rtc, so probe
should not fail in this case.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
diff --git a/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt b/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt
index 5c199ee..a8934fe 100644
--- a/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt
+++ b/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt
@@ -6,11 +6,11 @@
Required properties:
- compatible: should be: "haoyu,hym8563"
- reg: i2c address
-- interrupts: rtc alarm/event interrupt
- #clock-cells: the value should be 0
Optional properties:
- clock-output-names: From common clock binding
+- interrupts: rtc alarm/event interrupt
Example:
diff --git a/drivers/rtc/rtc-hym8563.c b/drivers/rtc/rtc-hym8563.c
index 0f710e9..e9da795 100644
--- a/drivers/rtc/rtc-hym8563.c
+++ b/drivers/rtc/rtc-hym8563.c
@@ -548,14 +548,16 @@
return ret;
}
- ret = devm_request_threaded_irq(&client->dev, client->irq,
- NULL, hym8563_irq,
- IRQF_TRIGGER_LOW | IRQF_ONESHOT,
- client->name, hym8563);
- if (ret < 0) {
- dev_err(&client->dev, "irq %d request failed, %d\n",
- client->irq, ret);
- return ret;
+ if (client->irq > 0) {
+ ret = devm_request_threaded_irq(&client->dev, client->irq,
+ NULL, hym8563_irq,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ client->name, hym8563);
+ if (ret < 0) {
+ dev_err(&client->dev, "irq %d request failed, %d\n",
+ client->irq, ret);
+ return ret;
+ }
}
/* check state of calendar information */