platform/x86: x86-android-tablets: fix gpio_secondary_fwnode_init() not working

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acpi_bus_find_device_by_name() call returns a pointer to the device object
on the ACPI bus, aka the ACPI companion device.

gpio_secondary_fwnode_init() then continues with setting the secondary
fwnode on this device. But this is not the actual physical device for
the GPIO controller (e.g. the GPIO controller platform bus device).

This mismatch is causing GPIO lookups by secondary fwnode to not work.

Modify gpio_secondary_fwnode_init() to instead set the secondary fwnode
of the first physical device associated with the ACPI companion device.

This fixes the GPIO lookups not working.

Fixes: 1448c2d2ca ("platform/x86: x86-android-tablets: enable fwnode matching of GPIO chips")
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Link: https://patch.msgid.link/20260908185517.49047-1-johannes.goede@oss.qualcomm.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

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Hans de Goede 2026-09-08 20:55:17 +02:00 • committed by Ilpo Järvinen

parent 312fd3f3a8

commit dd519eb8f6

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1 changed files with 9 additions and 2 deletions

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drivers/platform/x86/x86-android-tablets/core.c

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