Re: [PATCH 2/3 v2] drm/panel: Add DT bindings for Novatek NT35510-based panels

On Sun, Feb 23, 2020 at 01:18:40PM +0100, Linus Walleij wrote:

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: Linus Walleij linus.walleij@linaro.org

Applied to drm-misc-next.

Sam

---

ChangeLog v1->v2:

• Rename file to novatek,nt35510,yaml to match the first compatible.
• Require both the specific display manufacturer compatible and the novatek,nt35510 compatible in strict sequence.

---

.../display/panel/novatek,nt35510.yaml | 56 +++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml

diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml new file mode 100644 index 000000000000..791fc9daa68b --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml @@ -0,0 +1,56 @@ +# 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>;
  

•    };
  

• };

+...

2.21.1