linux-kernel - Re: [PATCH 1/2] dt-bindings: display: panel: Add Visionox R66451 AMOLED DSI panel bindings

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Date:   Sun, 21 May 2023 12:30:18 +0200
From:   Marijn Suijten <marijn.suijten@...ainline.org>
To:     Jessica Zhang <quic_jesszhan@...cinc.com>
Cc:     Neil Armstrong <neil.armstrong@...aro.org>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: display: panel: Add Visionox R66451
 AMOLED DSI panel bindings

On 2023-05-16 13:20:30, Jessica Zhang wrote:
> Document the 1080x2340 Visionox R66451 AMOLED DSI panel bindings
> 
> Signed-off-by: Jessica Zhang <quic_jesszhan@...cinc.com>
> ---
>  .../bindings/display/panel/visionox,r66451.yaml    | 59 ++++++++++++++++++++++
>  1 file changed, 59 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/visionox,r66451.yaml b/Documentation/devicetree/bindings/display/panel/visionox,r66451.yaml
> new file mode 100644
> index 000000000000..6ba323683921
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/visionox,r66451.yaml
> @@ -0,0 +1,59 @@
> +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/panel/visionox,r66451.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Visionox R66451 AMOLED DSI Panel
> +
> +maintainers:
> +  - Jessica Zhang <quic_jesszhan@...cinc.com>
> +
> +allOf:
> +  - $ref: panel-common.yaml#
> +
> +properties:
> +  compatible:
> +    const: visionox,r66451
> +
> +  reg:
> +    maxItems: 1
> +    description: DSI virtual channel
> +
> +  vddio-supply: true
> +  vdd-supply: true
> +  port: true
> +  reset-gpios: true

Normally for cmd-mode panels there is also a `disp-te` pin which is
optionally registered in dsi_host.c as GPIOD_IN, but on **ALL** my Sony
phones this breaks vsync (as in: mdp5 stops receiving the interrupt, but
we can see disp-te in /proc/interrupts then).

- Marijn

> +additionalProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +  - vddio-supply
> +  - vdd-supply
> +  - reset-gpios
> +  - port
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +    dsi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +        panel@0 {
> +            compatible = "visionox,r66451";
> +            reg = <0>;
> +            vddio-supply = <&vreg_l12c_1p8>;
> +            vdd-supply = <&vreg_l13c_3p0>;
> +
> +            reset-gpios = <&tlmm 24 GPIO_ACTIVE_LOW>;
> +
> +            port {
> +                panel0_in: endpoint {
> +                    remote-endpoint = <&dsi0_out>;
> +                };
> +            };
> +        };
> +    };
> +...
> 
> -- 
> 2.40.1
>