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gpio: tqmx86: really make IRQ optional

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[ Upstream commit 9b87f43537 ]

The tqmx86 MFD driver was passing IRQ 0 for "no IRQ" in the past. This
causes warnings with newer kernels.

Prepare the gpio-tqmx86 driver for the fixed MFD driver by handling a
missing IRQ properly.

Fixes: b868db94a6 ("gpio: tqmx86: Add GPIO from for this IO controller")
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Matthias Schiffer 2021-07-16 12:00:47 +02:00 committed by Greg Kroah-Hartman
parent 4ef549dc9c
commit 1242ca9369
1 changed files with 3 additions and 3 deletions
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6
drivers/gpio/gpio-tqmx86.c
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@ -238,8 +238,8 @@ static int tqmx86_gpio_probe(struct platform_device *pdev)
struct resource *res; struct resource *res;
int ret, irq; int ret, irq;
irq = platform_get_irq(pdev, 0); irq = platform_get_irq_optional(pdev, 0);
if (irq < 0) if (irq < 0 && irq != -ENXIO)
return irq; return irq;
res = platform_get_resource(pdev, IORESOURCE_IO, 0); res = platform_get_resource(pdev, IORESOURCE_IO, 0);
@ -278,7 +278,7 @@ static int tqmx86_gpio_probe(struct platform_device *pdev)
pm_runtime_enable(&pdev->dev); pm_runtime_enable(&pdev->dev);
if (irq) { if (irq > 0) {
struct irq_chip *irq_chip = &gpio->irq_chip; struct irq_chip *irq_chip = &gpio->irq_chip;
u8 irq_status; u8 irq_status;