linux-kernel - RE: [EXT] Re: [PATCH v18 3/8] dt-bindings: display: bridge: Add Cadence MHDP8501

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Message-ID:
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Date: Tue, 29 Oct 2024 07:17:25 +0000
From: Sandor Yu <sandor.yu@....com>
To: Krzysztof Kozlowski <krzk@...nel.org>
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Subject: RE: [EXT] Re: [PATCH v18 3/8] dt-bindings: display: bridge: Add
 Cadence MHDP8501

> 
> On Tue, Oct 29, 2024 at 02:02:11PM +0800, Sandor Yu wrote:
> > +  interrupts:
> > +    items:
> > +      - description: Hotplug cable plugin.
> > +      - description: Hotplug cable plugout.
> > +
> > +  interrupt-names:
> > +    items:
> > +      - const: plug_in
> > +      - const: plug_out
> > +
> > +  data-lanes:
> > +    $ref: /schemas/media/video-interfaces.yaml#/properties/data-lanes
> > +    minItems: 4
> > +    maxItems: 4
> > +    description: Lane reordering for HDMI or DisplayPort interface.
> 
> Please look how existing bindings do it. data-lanes is a property of port.
> Otherwise why would you like this to be applied to the input?

'lane reordering' is a feature of the MHDP IP, and different boards have different mappings. 

Benjamin comments in v16, the imx8mq-zii-ultra board's lane mapping differs from the default in my driver, 
so we need to treat it as an input.

As data-lanes is a property of port, so there is no exist property could be reused,
How about revert 'data-lanes' back to my previous implementation of 'lane-mapping'?

B.R
Sandor

> 
> Best regards,
> Krzysztof