APPLIED: [SRU][J:linux-bluefield][PATCH v1 0/1] gpio_mlxbf2: error getting IRQ for instance 1 and 2

[Kuba Pawlak]

On 5.08.2025 22:37, David Thompson wrote:
> BugLink: https://bugs.launchpad.net/bugs/2119569
>
> SRU Justification:
>
> [Impact]
> 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
>
> [Fix]
> The fix is to cherry pick the following upstream patch:
>      63c7bc53a35e gpio: mlxbf2: use platform_get_irq_optional()
> which makes use of the "platform_get_irq_optional()" API.
>
> [Test Case]
> * Boot BlueField-2 platform with software containing fix
> * Verify that gpio-mlxbf2 module is loaded properly
> * Check the kernel log via dmesg for proper messages from gpio subsystem
> * Verify that there are no error logs caused by gpio-mlxbf2
> * Reboot several times and keep checking log
>
> [Regression Potential]
> This fix is upstreamed and tested well.
>
> David Thompson (1):
>    gpio: mlxbf2: use platform_get_irq_optional()
>
>   drivers/gpio/gpio-mlxbf2.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
Applied-by: Kuba Pawlak <kuba.pawlak at canonical.com>
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