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

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Message-ID: <25e0a1c6-70dd-409b-927b-ef113e6a4cc4@linaro.org>
Date: Fri, 26 Jan 2024 11:17:17 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Chen-Yu Tsai <wenst@...omium.org>, 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>
Cc: 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 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.

Best regards,
Krzysztof