linux-kernel - Re: [PATCH 1/2] dt-bindings: display: panel: Make reset-gpio as optional for Raydium RM67200

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Message-ID: <7lfahwhcxvedizxpijst7nzseryw27r26rizqmyldsidm3wnwu@72mc42luxowx>
Date: Thu, 19 Jun 2025 15:12:26 +0200
From: Sebastian Reichel <sebastian.reichel@...labora.com>
To: Andy Yan <andyshrk@....com>
Cc: neil.armstrong@...aro.org, conor+dt@...nel.org, 
	quic_jesszhan@...cinc.com, krzk+dt@...nel.org, robh@...nel.org, tzimmermann@...e.de, 
	devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
	Andy Yan <andy.yan@...k-chips.com>
Subject: Re: [PATCH 1/2] dt-bindings: display: panel: Make reset-gpio as
 optional for Raydium RM67200

Hi,

On Mon, Jun 16, 2025 at 03:05:16PM +0800, Andy Yan wrote:
> From: Andy Yan <andy.yan@...k-chips.com>
> 
> Although the datasheet of the panel module describes that it has a
> reset pin, in the actual hardware design, we often use an RC circuit
> to control the reset, and rarely use GPIO to control the reset. This
> is the way it is done on our numerous development boards (such as RK3568,
> RK3576 EVB).
> So make the reset-gpio optional.
> 
> Signed-off-by: Andy Yan <andy.yan@...k-chips.com>
> ---

Reviewed-by: Sebastian Reichel <sebastian.reichel@...labora.com>

Greetings,

-- Sebastian

> 
>  .../devicetree/bindings/display/panel/raydium,rm67200.yaml       | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/raydium,rm67200.yaml b/Documentation/devicetree/bindings/display/panel/raydium,rm67200.yaml
> index 54c9c0ef45ecc..97b7fbe05c077 100644
> --- a/Documentation/devicetree/bindings/display/panel/raydium,rm67200.yaml
> +++ b/Documentation/devicetree/bindings/display/panel/raydium,rm67200.yaml
> @@ -42,7 +42,6 @@ required:
>    - compatible
>    - port
>    - reg
> -  - reset-gpios
>  
>  additionalProperties: false
>  
> -- 
> 2.43.0
> 

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