linux-kernel - Re: [PATCH v4 1/2] dt-bindings: bridge: lt9211c: Add bindings

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Message-ID: <20251224-strong-fabulous-bee-cdd620@quoll>
Date: Wed, 24 Dec 2025 10:40:34 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Venkata Gopi Nagaraju Botlagunta <venkata.botlagunta@....qualcomm.com>
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>, 
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Marek Vasut <marex@...x.de>, 
	dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Nilesh Laad <nilesh.laad@....qualcomm.com>, venkata.valluru@....qualcomm.com, jessica.zhang@....qualcomm.com, 
	Yi Zhang <zhanyi@....qualcomm.com>
Subject: Re: [PATCH v4 1/2] dt-bindings: bridge: lt9211c: Add bindings

On Wed, Dec 24, 2025 at 12:41:40PM +0530, Venkata Gopi Nagaraju Botlagunta wrote:
> From: Yi Zhang <zhanyi@....qualcomm.com>
> 
> Add bindings for lt9211c.
> 
> Signed-off-by: Yi Zhang <zhanyi@....qualcomm.com>
> Signed-off-by: Nilesh Laad <nilesh.laad@....qualcomm.com>
> Signed-off-by: Gopi Botlagunta <venkata.botlagunta@....qualcomm.com>
> ---
>  .../bindings/display/bridge/lontium,lt9211.yaml    | 42 ++++++++++++++++++++--
>  1 file changed, 40 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml
> index 9a6e9b25d14a..98079df61cbb 100644
> --- a/Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml
> +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml
> @@ -4,19 +4,20 @@
>  $id: http://devicetree.org/schemas/display/bridge/lontium,lt9211.yaml#
>  $schema: http://devicetree.org/meta-schemas/core.yaml#
>  
> -title: Lontium LT9211 DSI/LVDS/DPI to DSI/LVDS/DPI bridge.
> +title: Lontium LT9211/LT9211C DSI/LVDS/DPI to DSI/LVDS/DPI bridge.
>  
>  maintainers:
>    - Marek Vasut <marex@...x.de>
>  
>  description: |
> -  The LT9211 are bridge devices which convert Single/Dual-Link DSI/LVDS
> +  The LT9211 and LT9211C are bridge devices which convert Single/Dual-Link DSI/LVDS
>    or Single DPI to Single/Dual-Link DSI/LVDS or Single DPI.
>  
>  properties:
>    compatible:
>      enum:
>        - lontium,lt9211
> +      - lontium,lt9211c
>  
>    reg:
>      maxItems: 1
> @@ -91,6 +92,43 @@ examples:
>  
>          vccio-supply = <&lt9211_1v8>;
>  
> +        ports {
> +          #address-cells = <1>;
> +          #size-cells = <0>;
> +
> +          port@0 {
> +            reg = <0>;
> +
> +            endpoint {
> +              remote-endpoint = <&dsi0_out>;
> +            };
> +          };
> +
> +          port@2 {
> +            reg = <2>;
> +
> +            endpoint {
> +              remote-endpoint = <&panel_in_lvds>;
> +            };
> +          };
> +        };
> +      };
> +    };
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    i2c {
> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +
> +      lvds-bridge@3b {
> +        compatible = "lontium,lt9211c";

Don't add unnecessary examples.

Best regards,
Krzysztof