]> git.itanic.dy.fi Git - linux-stable/commit
Input: goodix - accept ACPI resources with gpio_count == 3 && gpio_int_idx == 0
authorHans de Goede <hdegoede@redhat.com>
Sat, 23 Dec 2023 14:16:50 +0000 (15:16 +0100)
committerDmitry Torokhov <dmitry.torokhov@gmail.com>
Fri, 19 Jan 2024 08:44:54 +0000 (00:44 -0800)
commit180a8f12c21f41740fee09ca7f7aa98ff5bb99f8
tree233b727c477fdc118eeb6b0268103c08ab10cc68
parent58f65f9db7e0de366a5a115c2e2c0703858bba69
Input: goodix - accept ACPI resources with gpio_count == 3 && gpio_int_idx == 0

Some devices list 3 Gpio resources in the ACPI resource list for
the touchscreen:

1. GpioInt resource pointing to the GPIO used for the interrupt
2. GpioIo resource pointing to the reset GPIO
3. GpioIo resource pointing to the GPIO used for the interrupt

Note how the third extra GpioIo resource really is a duplicate
of the GpioInt provided info.

Ignore this extra GPIO, treating this setup the same as gpio_count == 2 &&
gpio_int_idx == 0 fixes the touchscreen not working on the Thunderbook
Colossus W803 rugged tablet and likely also on the CyberBook_T116K.

Reported-by: Maarten van der Schrieck
Closes: https://gitlab.com/AdyaAdya/goodix-touchscreen-linux-driver/-/issues/22
Suggested-by: Maarten van der Schrieck
Tested-by: Maarten van der Schrieck
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20231223141650.10679-1-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
drivers/input/touchscreen/goodix.c