Re: [PATCH v2 05/21] dt-bindings: dipslay/panel: describe panels using Focaltech OTA7290B

[Jie Gan <jie.gan@oss.qualcomm.com>]

On 4/11/2026 8:10 PM, Dmitry Baryshkov wrote:
> Add schema for the panels using Focaltech OTA7290B controller. For now
> there is only one such panel, from the Waveshare 8.8 DSI TOUCH-A kit.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> ---
>   .../bindings/display/panel/focaltech,ota7290b.yaml | 70 ++++++++++++++++++++++
>   1 file changed, 70 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/focaltech,ota7290b.yaml b/Documentation/devicetree/bindings/display/panel/focaltech,ota7290b.yaml
> new file mode 100644
> index 000000000000..f2f6e254b7de
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/focaltech,ota7290b.yaml
> @@ -0,0 +1,70 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/panel/focaltech,ota7290b.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Focaltech OTA7290B DSI panels
> +
> +maintainers:
> +  - Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> +
> +allOf:
> +  - $ref: panel-common.yaml#
> +
> +properties:
> +  compatible:
> +    const: waveshare,8.88-dsi-touch-a

mismatch with the compatible in the example.

> +
> +  reg:
> +    maxItems: 1
> +
> +  vdd-supply:
> +    description: supply regulator for VDD, usually 3.3V
> +
> +  vdda-supply:
> +    description: supply regulator for VDDA, 7-10V
> +
> +  vcc-supply:
> +    description: supply regulator for VCCIO, usually 1.5V
> +
> +  reset-gpios: true
> +  backlight: true
> +  rotation: true
> +  port: true
> +
> +required:
> +  - compatible
> +  - reg
> +  - vdd-supply
> +  - vccio-supply

defined as vcc-supply in property block.

Thanks,
Jie

> +  - reset-gpios
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    dsi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        panel@0 {
> +            compatible = "waveshare,8.8-dsi-touch-a";
> +            reg = <0>;
> +            vdd-supply = <&vdd>;
> +            vccio-supply = <&vccio>;
> +            reset-gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
> +            backlight = <&backlight>;
> +
> +            port {
> +                endpoint {
> +                    remote-endpoint = <&mipi_out_panel>;
> +                };
> +            };
> +        };
> +    };
> +
> +...
> +
>