Re: [PATCH v7 1/2] dt-bindings: display: add visionox rm69299 panel variant

From: Rob Herring <robh@kernel.org>
To: Harigovindan P <harigovi@codeaurora.org>
Cc: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
	freedreno@lists.freedesktop.org, devicetree@vger.kernel.org,
	robdclark@gmail.com, seanpaul@chromium.org, sean@poorly.run
Subject: Re: [PATCH v7 1/2] dt-bindings: display: add visionox rm69299 panel variant
Date: Thu, 19 Mar 2020 19:01:27 -0600	[thread overview]
Message-ID: <20200320010127.GA8379@bogus> (raw)
In-Reply-To: <20200316041647.27953-2-harigovi@codeaurora.org>

On Mon, Mar 16, 2020 at 09:46:46AM +0530, Harigovindan P wrote:
> Add bindings for visionox rm69299 panel.
> 
> Signed-off-by: Harigovindan P <harigovi@codeaurora.org>
> ---
> 
> Changes in v2:
> 	- Removed unwanted properties from description.
> 	- Creating source files without execute permissions(Rob Herring).
> Changes in v3:
> 	- Changing txt file into yaml
> Changes in v4:
> 	- Updating license identifier.
> 	- Moving yaml file inside panel directory.
> 	- Removing pinctrl entries.
> 	- Adding documentation for reset-gpios.
> Changes in v5:
> 	- No changes. Updated 2/2 Patch.
> Changes in v6:
> 	- Removing patternProperties.
> 	- Added " |" after description.
> 	- Setting port and reset-gpios to true.
> 	- Removing @ae94000 for dsi node.
> Changes in v7:
> 	- Added reg property.
> 
>  .../display/panel/visionox,rm69299.yaml       | 81 +++++++++++++++++++
>  1 file changed, 81 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/panel/visionox,rm69299.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/visionox,rm69299.yaml b/Documentation/devicetree/bindings/display/panel/visionox,rm69299.yaml
> new file mode 100644
> index 000000000000..6ea1a7be3787
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/visionox,rm69299.yaml
> @@ -0,0 +1,81 @@
> +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/panel/visionox,rm69299.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Visionox model RM69299 Panels Device Tree Bindings.
> +
> +maintainers:
> + - Harigovindan P <harigovi@codeaurora.org>
> +
> +description: |
> + This binding is for display panels using a Visionox RM692999 panel.
> +
> +allOf:
> + - $ref: panel-common.yaml#
> +
> +properties:
> +  compatible:
> +    const: visionox,rm69299-1080p-display
> +
> +  reg:
> +    maxItems: 1
> +
> +  vdda-supply:
> +    description: |
> +      Phandle of the regulator that provides the vdda supply voltage.
> +
> +  vdd3p3-supply:
> +    description: |
> +      Phandle of the regulator that provides the vdd3p3 supply voltage.
> +
> +  ports:
> +    type: object
> +    description: |
> +      A node containing DSI input & output port nodes with endpoint
> +      definitions as documented in
> +      Documentation/devicetree/bindings/media/video-interfaces.txt
> +      Documentation/devicetree/bindings/graph.txt
> +      properties:
> +        port: true

Need:

       additionalProperties: false

> +
> +  reset-gpios: true
> +
> +required:
> +  - compatible
> +  - reg
> +  - vdda-supply
> +  - vdd3p3-supply
> +  - reset-gpios
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    dsi {
> +        reg = <0x0ae94000 0x400>;

Either drop 'reg' or add a unit-address.

> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +        panel@0 {
> +            compatible = "visionox,rm69299-1080p-display";
> +            reg = <0x0ae94000 0x400>;

Wrong address.

> +
> +            vdda-supply = <&src_pp1800_l8c>;
> +            vdd3p3-supply = <&src_pp2800_l18a>;
> +
> +            reset-gpios = <&pm6150l_gpio 3 0>;
> +            ports {
> +                    #address-cells = <1>;
> +                    #size-cells = <0>;
> +                    port@0 {

This will fail with the above change.

> +                            reg = <0>;
> +                            panel0_in: endpoint {
> +                                remote-endpoint = <&dsi0_out>;
> +                            };
> +                    };
> +            };
> +        };
> +    };
> +
> +...
> -- 
> 2.25.1
> 