Commit 810bd906 authored by David Thompson's avatar David Thompson Committed by Bartosz Golaszewski
Browse files

gpio: mlxbf3: use platform_get_irq_optional() 



The gpio-mlxbf3 driver interfaces with two GPIO controllers,
device instance 0 and 1. There is a single IRQ resource shared
between the two controllers, and it is found in the ACPI table for
device instance 0. The driver should not use platform_get_irq(),
otherwise this error is logged when probing instance 1:
    mlxbf3_gpio MLNXBF33:01: error -ENXIO: IRQ index 0 not found

Cc: stable@vger.kernel.org
Fixes: cd33f216 ("gpio: mlxbf3: Add gpio driver support")
Signed-off-by: default avatarDavid Thompson <davthompson@nvidia.com>
Reviewed-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/ce70b98a201ce82b9df9aa80ac7a5eeaa2268e52.1754928650.git.davthompson@nvidia.com


Signed-off-by: default avatarBartosz Golaszewski <bartosz.golaszewski@linaro.org>
parent 56bdf727

drivers/gpio/gpio-mlxbf3.c

+1 −1
Original line number Diff line number Diff line
@@ -227,7 +227,7 @@ static int mlxbf3_gpio_probe(struct platform_device *pdev) 
	gc->owner = THIS_MODULE;

	gc->add_pin_ranges = mlxbf3_gpio_add_pin_ranges;



	irq = platform_get_irq(pdev, 0);

	irq = platform_get_irq_optional(pdev, 0);

	if (irq >= 0) {

		girq = &gs->gc.irq;

		gpio_irq_chip_set_chip(girq, &gpio_mlxbf3_irqchip);