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| author | Hans de Goede <hansg@kernel.org> | 2025-09-20 22:09:55 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-02 13:44:14 +0200 |
| commit | 159c156fd71483156f469bfa73d201c498b2a04f (patch) | |
| tree | 37f0c60738f7a076cb07814e602cd33fe188647b /rust/helpers/pid_namespace.c | |
| parent | ca988dcdc6683ecd9de5f525ce469588a9141c21 (diff) | |
gpiolib: Extend software-node support to support secondary software-nodes
commit c6ccc4dde17676dfe617b9a37bd9ba19a8fc87ee upstream.
When a software-node gets added to a device which already has another
fwnode as primary node it will become the secondary fwnode for that
device.
Currently if a software-node with GPIO properties ends up as the secondary
fwnode then gpiod_find_by_fwnode() will fail to find the GPIOs.
Add a new gpiod_fwnode_lookup() helper which falls back to calling
gpiod_find_by_fwnode() with the secondary fwnode if the GPIO was not
found in the primary fwnode.
Fixes: e7f9ff5dc90c ("gpiolib: add support for software nodes")
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20250920200955.20403-1-hansg@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'rust/helpers/pid_namespace.c')
0 files changed, 0 insertions, 0 deletions