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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Guenter Roeck <linux@roeck-us.net>,
	Stephen Boyd <swboyd@chromium.org>,
	Wim Van Sebroeck <wim@linux-watchdog.org>,
	Sasha Levin <sashal@kernel.org>,
	linux-arm-msm@vger.kernel.org, linux-watchdog@vger.kernel.org
Subject: [PATCH AUTOSEL 5.4 098/459] watchdog: qcom: Use platform_get_irq_optional() for bark irq
Date: Fri, 14 Feb 2020 10:55:48 -0500
Message-ID: <20200214160149.11681-98-sashal@kernel.org> (raw)
In-Reply-To: <20200214160149.11681-1-sashal@kernel.org>

From: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>

[ Upstream commit e0b4f4e0cf7fa9d62628d4249c765ec18dffd143 ]

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@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20191213064934.4112-1-saiprakash.ranjan@codeaurora.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 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 a494543d3ae1b..eb47fe5ed2805 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,
-- 
2.20.1


      parent reply index

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200214160149.11681-1-sashal@kernel.org>
2020-02-14 15:55 ` [PATCH AUTOSEL 5.4 097/459] drivers: watchdog: stm32_iwdg: set WDOG_HW_RUNNING at probe Sasha Levin
2020-02-14 15:55 ` Sasha Levin [this message]

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