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Code Issues Releases Packages Activity
linux/drivers/gpio/gpio-mlxbf3.c
David Thompson f3a2d068e0 gpio: mlxbf3: use platform_get_irq_optional() 
commit 810bd9066f upstream.

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: cd33f216d2 ("gpio: mlxbf3: Add gpio driver support")
Signed-off-by: David Thompson <davthompson@nvidia.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/ce70b98a201ce82b9df9aa80ac7a5eeaa2268e52.1754928650.git.davthompson@nvidia.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-20 18:30:13 +02:00

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