Commit d259f137 authored by Luca Ceresoli's avatar Luca Ceresoli Committed by Dmitry Torokhov
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dt-bindings: input: touchscreen: goodix: clarify irq-gpios misleading text 



The irq-gpios description misleading, apparently saying that driving the
IRQ GPIO resets the device, which is even more puzzling as there is a reset
GPIO as well.

In reality the IRQ pin can be driven during the reset sequence to configure
the client address, as it becomes clear after checking both the datasheet
and the driver code. Improve the text to clarify that.

Also rephrase to remove reference to the driver, which is not appropriate
in the bindings.

Signed-off-by: default avatarLuca Ceresoli <luca.ceresoli@bootlin.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarJeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20240102081934.11293-1-luca.ceresoli@bootlin.com


Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 8109e032

Documentation/devicetree/bindings/input/touchscreen/goodix.yaml

+3 −2
Original line number Diff line number Diff line
@@ -37,8 +37,9 @@ properties: 
    maxItems: 1



  irq-gpios:

    description: GPIO pin used for IRQ. The driver uses the interrupt gpio pin

      as output to reset the device.

    description: GPIO pin used for IRQ input. Additionally, this line is

      sampled by the device on reset deassertion to select the I2C client

      address, thus it can be driven by the host during the reset sequence.

    maxItems: 1



  reset-gpios: