This is a note to let you know that I've just added the patch titled
Input: goodix - accept ACPI resources with gpio_count == 3 && gpio_int_idx == 0
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
input-goodix-accept-acpi-resources-with-gpio_count-3.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4f85f94ae288a94d3c5f8ff2c3416b5f4bd8c836
Author: Hans de Goede <hdegoede@xxxxxxxxxx>
Date: Sat Dec 23 15:16:50 2023 +0100
Input: goodix - accept ACPI resources with gpio_count == 3 && gpio_int_idx == 0
[ Upstream commit 180a8f12c21f41740fee09ca7f7aa98ff5bb99f8 ]
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@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20231223141650.10679-1-hdegoede@xxxxxxxxxx
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index af32fbe57b630..b068ff8afbc9a 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -884,7 +884,8 @@ static int goodix_add_acpi_gpio_mappings(struct goodix_ts_data *ts)
}
}
- if (ts->gpio_count == 2 && ts->gpio_int_idx == 0) {
+ /* Some devices with gpio_int_idx 0 list a third unused GPIO */
+ if ((ts->gpio_count == 2 || ts->gpio_count == 3) && ts->gpio_int_idx == 0) {
ts->irq_pin_access_method = IRQ_PIN_ACCESS_ACPI_GPIO;
gpio_mapping = acpi_goodix_int_first_gpios;
} else if (ts->gpio_count == 2 && ts->gpio_int_idx == 1) {
