Re: [PATCH] watchdog: qcom: Use platform_get_irq_optional() for bark irq

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On 12/12/19 10:49 PM, Sai Prakash Ranjan wrote:
platform_get_irq() prints an error message when the interrupt
is not available. So on platforms where bark interrupt is
not specified, following error message is observed on SDM845.

[    2.975888] qcom_wdt 17980000.watchdog: IRQ index 0 not found

This is also seen on SC7180, SM8150 SoCs as well.
Fix this by using platform_get_irq_optional() instead.

Fixes: 36375491a4395654 ("watchdog: qcom: support pre-timeout when the bark irq is available")
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@xxxxxxxxxxxxxx>

Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>

---
  drivers/watchdog/qcom-wdt.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/qcom-wdt.c b/drivers/watchdog/qcom-wdt.c
index a494543d3ae1..eb47fe5ed280 100644
--- a/drivers/watchdog/qcom-wdt.c
+++ b/drivers/watchdog/qcom-wdt.c
@@ -246,7 +246,7 @@ static int qcom_wdt_probe(struct platform_device *pdev)
  	}
/* check if there is pretimeout support */
-	irq = platform_get_irq(pdev, 0);
+	irq = platform_get_irq_optional(pdev, 0);
  	if (irq > 0) {
  		ret = devm_request_irq(dev, irq, qcom_wdt_isr,
  				       IRQF_TRIGGER_RISING,





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