Re: [PATCH v2 1/2] dt-bindings: HID: i2c-hid: Document reset-related properties

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On Fri, Jan 26, 2024 at 08:41:38AM -0800, Bjorn Andersson wrote:
> Some I2C HID devices has a reset pin and requires that some specified
> time elapses after this reset pin is deasserted, before communication
> with the device is attempted.
> 
> The Linux implementation is looking for these in the "reset-gpios" and
> "post-reset-deassert-delay-ms" properties already, so use these property
> names.
> 
> Signed-off-by: Bjorn Andersson <quic_bjorande@xxxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/input/hid-over-i2c.yaml | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/input/hid-over-i2c.yaml b/Documentation/devicetree/bindings/input/hid-over-i2c.yaml
> index 138caad96a29..f07ff4cb3d26 100644
> --- a/Documentation/devicetree/bindings/input/hid-over-i2c.yaml
> +++ b/Documentation/devicetree/bindings/input/hid-over-i2c.yaml
> @@ -50,6 +50,12 @@ properties:
>      description: Time required by the device after enabling its regulators
>        or powering it on, before it is ready for communication.
>  
> +  post-reset-deassert-delay-ms:
> +    description: Time required by the device after reset has been deasserted,
> +      before it is ready for communication.

You forgot to remove the now obsolete comment from the HID driver that I
mentioned.

> +
> +  reset-gpios: true
> +
>    touchscreen-inverted-x: true
>  
>    touchscreen-inverted-y: true

Reviewed-by: Johan Hovold <johan+linaro@xxxxxxxxxx>




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