[PATCH v2 1/2] dt-bindings: drm/bridge: Add no-hpd property
Krzysztof Kozlowski
krzysztof.kozlowski at linaro.org
Tue Apr 11 06:06:41 UTC 2023
On 05/04/2023 16:24, Jayesh Choudhary wrote:
> From: Rahul T R <r-ravikumar at ti.com>
>
> The mhdp bridge can work without its HPD pin hooked up to the connector,
> but the current bridge driver throws an error when hpd line is not
> connected to the connector. For such cases, we need an indication for
> no-hpd, using which we can bypass the hpd detection and instead use the
> auxiliary channels connected to the DP connector to confirm the
> connection.
> So add no-hpd property to the bindings, to disable hpd when not
> connected or unusable.
Your subject prefixes miss device specific part. You do not add no-hpd
to all bridges.
It's also not drm. It is a display directory.
>
> Signed-off-by: Rahul T R <r-ravikumar at ti.com>
> Signed-off-by: Jayesh Choudhary <j-choudhary at ti.com>
> ---
> .../devicetree/bindings/display/bridge/cdns,mhdp8546.yaml | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
> index c2b369456e4e..3a6c6d837593 100644
> --- a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
> +++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
> @@ -57,6 +57,12 @@ properties:
> interrupts:
> maxItems: 1
>
> + cdns,no-hpd:
No improvements - use existing no-hpd name.
Best regards,
Krzysztof
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