Commit 5ce96fe0 authored by Linus Walleij's avatar Linus Walleij Committed by Sam Ravnborg
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drm/panel: Add DT bindings for Novatek NT35510-based panels



This adds device tree bindings for the Novatek NT35510-based
family of panels. Since several such panels are in existence
we define bindings common for all, and define the compatible
string for one certain panel (Hydis HVA40WV1).

As other panels are discovered and investigated, we can add
more compatibles to the binding using oneOf constructions.

Cc: Stephan Gerhold <stephan@gerhold.net>
Cc: devicetree@vger.kernel.org
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200223121841.26836-2-linus.walleij@linaro.org
parent dc058092
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/panel/novatek,nt35510.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Novatek NT35510-based display panels

maintainers:
  - Linus Walleij <linus.walleij@linaro.org>

allOf:
  - $ref: panel-common.yaml#

properties:
  compatible:
    items:
      - const: hydis,hva40wv1
      - const: novatek,nt35510
    description: This indicates the panel manufacturer of the panel
      that is in turn using the NT35510 panel driver. The compatible
      string determines how the NT35510 panel driver shall be configured
      to work with the indicated panel. The novatek,nt35510 compatible shall
      always be provided as a fallback.
  reg: true
  reset-gpios: true
  vdd-supply:
     description: regulator that supplies the vdd voltage
  vddi-supply:
     description: regulator that supplies the vddi voltage
  backlight: true

required:
  - compatible
  - reg

additionalProperties: false

examples:
  - |
    #include <dt-bindings/gpio/gpio.h>

    dsi@a0351000 {
        #address-cells = <1>;
        #size-cells = <0>;
        panel {
            compatible = "hydis,hva40wv1", "novatek,nt35510";
            reg = <0>;
            vdd-supply = <&ab8500_ldo_aux4_reg>;
            vddi-supply = <&ab8500_ldo_aux6_reg>;
            reset-gpios = <&gpio4 11 GPIO_ACTIVE_LOW>;
            backlight = <&gpio_bl>;
        };
    };

...