[PATCH v4 2/2 RESEND] extcon: qcom-spmi: Switch to platform_get_irq_byname_optional

[Bryan O'Donoghue <bryan.odonoghue@linaro.org>]

Valid configurations for the extcon interrupt declarations are

- usb_id
- usb_vbus
- (usb_id | usb_vbus)

In the case of a standalone usb_id or usb_vbus failure to find one of the
interrupts shouldn't generate a warning message. A warning is already in
place if both IRQs are missing.

Switch to using platform_get_irq_byname_optional() in order to facilitate
this behaviour.

Suggested-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 drivers/extcon/extcon-qcom-spmi-misc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/extcon/extcon-qcom-spmi-misc.c b/drivers/extcon/extcon-qcom-spmi-misc.c
index eb02cb962b5e1..f72e90ceca53d 100644
--- a/drivers/extcon/extcon-qcom-spmi-misc.c
+++ b/drivers/extcon/extcon-qcom-spmi-misc.c
@@ -123,7 +123,7 @@ static int qcom_usb_extcon_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	info->id_irq = platform_get_irq_byname(pdev, "usb_id");
+	info->id_irq = platform_get_irq_byname_optional(pdev, "usb_id");
 	if (info->id_irq > 0) {
 		ret = devm_request_threaded_irq(dev, info->id_irq, NULL,
 					qcom_usb_irq_handler,
@@ -136,7 +136,7 @@ static int qcom_usb_extcon_probe(struct platform_device *pdev)
 		}
 	}
 
-	info->vbus_irq = platform_get_irq_byname(pdev, "usb_vbus");
+	info->vbus_irq = platform_get_irq_byname_optional(pdev, "usb_vbus");
 	if (info->vbus_irq > 0) {
 		ret = devm_request_threaded_irq(dev, info->vbus_irq, NULL,
 					qcom_usb_irq_handler,
-- 
2.34.1