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

Jie Gan
2026-04-12T00:44:41Z

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>;
> + };
> + };
> + };
> + };
> +
> +...
> +
>