Bartosz Golaszewski 442d60df74 x86/platform/geode: reference the real node of the cs5535 GPIO controller ...

GPIO software node lookup should rely exclusively on matching the
addresses of the referenced firmware nodes. Commit e5d527be7e ("gpio:
swnode: don't use the swnode's name as the key for GPIO lookup") tried to
enforce this but had to be reverted: it broke existing users who abuse the
software node mechanism by creating "dummy" software nodes named after the
device they want to get GPIOs from, without ever attaching them to the
actual GPIO devices. Those users rely on GPIOLIB matching the label of the
GPIO controller against the name of the software node rather than on a real
firmware node link.

Un-reverting e5d527be7e therefore requires converting all such users to
real firmware node lookup. The geode board setup is one of them: it
references the cs5535 GPIO controller through a locally-defined dummy node
named "cs5535-gpio".

The cs5535 MFD driver now exports the software node associated with its
GPIO controller cell as cs5535_gpio_swnode. Use it as the target of the
GPIO software node references in geode-common.c instead of the dummy node,
so the lookup resolves by firmware node address. As the referenced node
must exist at lookup time, make the cs5535 driver built-in for all boards
selecting GEODE_COMMON (depend on GPIO_CS5535=y). The node is exported in
the "CS5535" namespace, so import it in this module.

Acked-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://patch.msgid.link/20260611-cs5535-swnode-v3-1-2b0c517c0c03@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>

2026-06-19 10:52:09 +02:00

..

alix.c

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geode-common.c

x86/platform/geode: reference the real node of the cs5535 GPIO controller

2026-06-19 10:52:09 +02:00

geode-common.h

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geos.c

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Makefile

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net5501.c

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