linux-kernel - Re: [PATCH] dt-bindings: display: bridge: it6505: Add #sound-dai-cells

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Date: Mon, 29 Jan 2024 15:16:16 +0800
From: Chen-Yu Tsai <wenst@...omium.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: Andrzej Hajda <andrzej.hajda@...el.com>, Neil Armstrong <neil.armstrong@...aro.org>, 
	Robert Foss <rfoss@...nel.org>, Laurent Pinchart <Laurent.pinchart@...asonboard.com>, 
	Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, 
	Thomas Zimmermann <tzimmermann@...e.de>, Rob Herring <robh+dt@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	Allen Chen <allen.chen@....com.tw>, David Airlie <airlied@...il.com>, 
	Daniel Vetter <daniel@...ll.ch>, dri-devel@...ts.freedesktop.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: display: bridge: it6505: Add #sound-dai-cells

On Fri, Jan 26, 2024 at 6:17 PM Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 26/01/2024 08:35, Chen-Yu Tsai wrote:
> > The ITE IT6505 display bridge can take one I2S input and transmit it
> > over the DisplayPort link.
> >
> > Add #sound-dai-cells (= 0) to the binding for it.
> >
> > Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>
> > ---
> > The driver side changes [1] are still being worked on, but given the
> > hardware is very simple, it would be nice if we could land the binding
> > first and be able to introduct device trees that have this.
> >
> > [1] https://lore.kernel.org/linux-arm-kernel/20230730180803.22570-4-jiaxin.yu@mediatek.com/
> >
> >  .../devicetree/bindings/display/bridge/ite,it6505.yaml         | 3 +++
> >  1 file changed, 3 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml b/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
> > index 348b02f26041..7ec4decc9c21 100644
> > --- a/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
> > +++ b/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
> > @@ -52,6 +52,9 @@ properties:
> >      maxItems: 1
> >      description: extcon specifier for the Power Delivery
> >
> > +  "#sound-dai-cells":
> > +    const: 0
>
> In such case you also want to $ref /schemas/sound/dai-common.yaml.

Ack. I assume this also means I should change "additionalProperties: false"
to "unevaluatedProperties: false" in this file.

ChenYu

> Best regards,
> Krzysztof
>