linux-kernel - [PATCH] gpio: altera: change to platform_get_irq

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Date:   Thu,  9 Jan 2020 00:16:20 +0800
From:   "Ooi, Joyce" <joyce.ooi@...el.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Cc:     linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Joyce Ooi <joyce.ooi@...el.com>,
        See Chin Liang <chin.liang.see@...el.com>,
        Tan Ley Foon <ley.foon.tan@...el.com>, Ooi@...r.kernel.org
Subject: [PATCH] gpio: altera: change to platform_get_irq_optional to avoid false-positive error

This patch switches to platform_get_irq_optional() from
platform_get_irq() as it causes a false-positive error such as 'IRQ
index 0 not found' when IRQ is not used. The IRQ usage is optional in
this gpio-altera driver, so the error log is undesirable.

Signed-off-by: Ooi, Joyce <joyce.ooi@...el.com>
---
 drivers/gpio/gpio-altera.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-altera.c b/drivers/gpio/gpio-altera.c
index 9f2e6b04c361..cc4ba71e4fe3 100644
--- a/drivers/gpio/gpio-altera.c
+++ b/drivers/gpio/gpio-altera.c
@@ -266,7 +266,7 @@ static int altera_gpio_probe(struct platform_device *pdev)
 	altera_gc->mmchip.gc.owner		= THIS_MODULE;
 	altera_gc->mmchip.gc.parent		= &pdev->dev;
 
-	altera_gc->mapped_irq = platform_get_irq(pdev, 0);
+	altera_gc->mapped_irq = platform_get_irq_optional(pdev, 0);
 
 	if (altera_gc->mapped_irq < 0)
 		goto skip_irq;
-- 
2.13.0