linux-kernel - Re: [PATCH v5 1/2] dt-bindings: soc: imx93-media-blk-ctrl: Add PDFC subnode to schema and example

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <3348463.44csPzL39Z@steina-w>
Date: Tue, 04 Mar 2025 10:52:05 +0100
From: Alexander Stein <alexander.stein@...tq-group.com>
To: devicetree@...r.kernel.org, imx@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 dri-devel@...ts.freedesktop.org, Liu Ying <victor.liu@....com>
Cc: robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
 shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
 festevam@...il.com, victor.liu@....com, andrzej.hajda@...el.com,
 neil.armstrong@...aro.org, rfoss@...nel.org,
 Laurent.pinchart@...asonboard.com, jonas@...boo.se, jernej.skrabec@...il.com,
 maarten.lankhorst@...ux.intel.com, mripard@...nel.org, tzimmermann@...e.de,
 airlied@...il.com, simona@...ll.ch, peng.fan@....com,
 Conor Dooley <conor.dooley@...rochip.com>
Subject:
 Re: [PATCH v5 1/2] dt-bindings: soc: imx93-media-blk-ctrl: Add PDFC subnode
 to schema and example

Hi,

thanks for the update.

Am Dienstag, 4. März 2025, 09:24:33 CET schrieb Liu Ying:
> i.MX93 SoC mediamix blk-ctrl contains one DISPLAY_MUX register which
> configures parallel display format by using the "PARALLEL_DISP_FORMAT"
> field. Document the Parallel Display Format Configuration(PDFC) subnode
> and add the subnode to example.
> 
> Signed-off-by: Liu Ying <victor.liu@....com>
> Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
> ---
> v3->v5:
> * No change.
> 
> v2->v3:
> * Newly introduced to replace the standalone dt-binding in v1 and v2. (Rob)
> * Resend with Conor's R-b tag and with the patch rebased upon v6.11-rc1.
> 
>  .../soc/imx/fsl,imx93-media-blk-ctrl.yaml     | 68 +++++++++++++++++++
>  1 file changed, 68 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml
> index b3554e7f9e76..3f550c30d93d 100644
> --- a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml
> +++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml
> @@ -24,6 +24,12 @@ properties:
>    reg:
>      maxItems: 1
>  
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 1
> +
>    '#power-domain-cells':
>      const: 1
>  
> @@ -46,9 +52,43 @@ properties:
>        - const: csi
>        - const: dsi
>  
> +  bridge@60:
> +    type: object
> +    additionalProperties: false
> +
> +    properties:
> +      compatible:
> +        const: nxp,imx93-pdfc
> +
> +      reg:
> +        maxItems: 1
> +
> +      ports:
> +        $ref: /schemas/graph.yaml#/properties/ports
> +
> +        properties:
> +          port@0:
> +            $ref: /schemas/graph.yaml#/properties/port
> +            description: Input port node to receive pixel data.
> +
> +          port@1:
> +            $ref: /schemas/graph.yaml#/properties/port
> +            description: Output port node to downstream pixel data receivers.
> +
> +        required:
> +          - port@0
> +          - port@1
> +
> +    required:
> +      - compatible
> +      - reg
> +      - ports
> +
>  required:
>    - compatible
>    - reg
> +  - '#address-cells'
> +  - '#size-cells'
>    - power-domains
>    - clocks
>    - clock-names
> @@ -76,5 +116,33 @@ examples:
>                 <&clk IMX93_CLK_MIPI_DSI_GATE>;
>                 clock-names = "apb", "axi", "nic", "disp", "cam",
>                               "pxp", "lcdif", "isi", "csi", "dsi";
> +      #address-cells = <1>;
> +      #size-cells = <1>;
>        #power-domain-cells = <1>;
> +
> +      bridge@60 {

Given that you add a subnode, I would assume Rob's comment from [1]
also applies to you here.

Despite that, looks good to me. With that fixed:
Reviewed-by: Alexander Stein <alexander.stein@...tq-group.com>

[1] https://lore.kernel.org/all/20250225145833.GB2361434-robh@kernel.org/

> +        compatible = "nxp,imx93-pdfc";
> +        reg = <0x60 0x4>;
> +
> +        ports {
> +          #address-cells = <1>;
> +          #size-cells = <0>;
> +
> +          port@0 {
> +            reg = <0>;
> +
> +            pdfc_from_lcdif: endpoint {
> +              remote-endpoint = <&lcdif_to_pdfc>;
> +            };
> +          };
> +
> +          port@1 {
> +            reg = <1>;
> +
> +            pdfc_to_panel: endpoint {
> +              remote-endpoint = <&panel_from_pdfc>;
> +            };
> +          };
> +        };
> +      };
>      };
> 


-- 
TQ-Systems GmbH | Mühlstraße 2, Gut Delling | 82229 Seefeld, Germany
Amtsgericht München, HRB 105018
Geschäftsführer: Detlef Schneider, Rüdiger Stahl, Stefan Schneider
http://www.tq-group.com/