Commit 63c7bc53 authored by David Thompson's avatar David Thompson Committed by Bartosz Golaszewski
Browse files

gpio: mlxbf2: use platform_get_irq_optional() 



The gpio-mlxbf2 driver interfaces with four GPIO controllers,
device instances 0-3. There are two IRQ resources shared between
the four controllers, and they are found in the ACPI table for
instances 0 and 3. The driver should not use platform_get_irq(),
otherwise this error is logged when probing instances 1 and 2:
  mlxbf2_gpio MLNXBF22:01: error -ENXIO: IRQ index 0 not found

Fixes: 2b725265 ("gpio: mlxbf2: Introduce IRQ support")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarDavid Thompson <davthompson@nvidia.com>
Reviewed-by: default avatarShravan Kumar Ramani <shravankr@nvidia.com>
Reviewed-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20250728144619.29894-1-davthompson@nvidia.com


Signed-off-by: default avatarBartosz Golaszewski <bartosz.golaszewski@linaro.org>
parent b644c640

drivers/gpio/gpio-mlxbf2.c

+1 −1
Original line number Diff line number Diff line
@@ -397,7 +397,7 @@ mlxbf2_gpio_probe(struct platform_device *pdev) 
	gc->ngpio = npins;

	gc->owner = THIS_MODULE;



	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, &mlxbf2_gpio_irq_chip);