Re: [PATCH v3 1/6] media: dt-bindings: mt9m114: Add onnn,slew-rate DT-binding

From: Rob Herring
Date: Wed Mar 05 2025 - 08:14:56 EST


On Wed, Mar 05, 2025 at 11:14:48AM +0100, Mathis Foerst wrote:
> The MT9M114 supports the different slew rates (0 to 7) on the output pads.
> At the moment, this is hardcoded to 7 (the fastest rate).
> The user might want to change this values due to EMC requirements.
>
> Add the 'onnn,slew-rate' property to the MT9M114 DT-bindings for selecting
> the desired slew rate.
>
> Signed-off-by: Mathis Foerst <mathis.foerst@xxxxxx>
> ---
> .../devicetree/bindings/media/i2c/onnn,mt9m114.yaml | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/media/i2c/onnn,mt9m114.yaml b/Documentation/devicetree/bindings/media/i2c/onnn,mt9m114.yaml
> index f6b87892068a..c184bc04b743 100644
> --- a/Documentation/devicetree/bindings/media/i2c/onnn,mt9m114.yaml
> +++ b/Documentation/devicetree/bindings/media/i2c/onnn,mt9m114.yaml
> @@ -70,6 +70,15 @@ properties:
> - bus-type
> - link-frequencies
>
> + onnn,slew-rate:

Just 'slew-rate' which is already defined in the pinctrl binding.

> + $ref: /schemas/types.yaml#/definitions/uint32
> + description:
> + Slew rate ot the output pads DOUT[7:0], LINE_VALID, FRAME_VALID and
> + PIXCLK. Higher values imply steeper voltage-flanks on the pads.
> + minimum: 0
> + maximum: 7
> + default: 7
> +
> required:
> - compatible
> - reg
> --
> 2.34.1
>