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Subject[PATCH v2 1/6] dt-bindings: display: Document NewVision NV3052C DT node
Date
Add documentation for the Device Tree node for LCD panels based on the
NewVision NV3052C controller.

v2: - Support backlight property
- Add *-supply properties for the 5 different power supplies.
Either they must all be present, or 'power-supply' must be
present.
- Reword description to avoid confusion about 'driver'
- Use 4-space indent in example

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
.../display/panel/newvision,nv3052c.yaml | 100 ++++++++++++++++++
1 file changed, 100 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/panel/newvision,nv3052c.yaml

diff --git a/Documentation/devicetree/bindings/display/panel/newvision,nv3052c.yaml b/Documentation/devicetree/bindings/display/panel/newvision,nv3052c.yaml
new file mode 100644
index 000000000000..0468ddeaff2d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/newvision,nv3052c.yaml
@@ -0,0 +1,100 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/newvision,nv3052c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NewVision NV3052C TFT LCD panel driver with SPI control bus
+
+maintainers:
+ - Paul Cercueil <paul@crapouillou.net>
+
+description: |
+ This is a IC driver for TFT panels, accepting a variety of input
+ streams that get adapted and scaled to the panel.
+
+ The panel must obey the rules for a SPI slave device as specified in
+ spi/spi-controller.yaml
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - leadtek,ltk035c5444t-spi
+
+ - const: newvision,nv3052c
+
+ reg:
+ maxItems: 1
+
+ reset-gpios: true
+ power-supply: true
+ backlight: true
+ port: true
+
+ vci-supply:
+ description:
+ Power supply for analog circuits (VCI=2.5V to 6V)
+
+ vddam-supply:
+ description:
+ Power Supply for MIPI regulator circuits (VDDAM=1.75V to 6V)
+
+ iovcc-supply:
+ description: |
+ External Power Supply for IO pads and other logic circuits
+ (IOVCC=1.65 to 3.6V)
+
+ pprech-supply:
+ description:
+ Pre-charge power for source (can be connected to IOVCC or VCI)
+
+ vpp-supply:
+ description:
+ Input power for NV memory programming (8.0V ~ 8.5V, typical=8.25V)
+
+required:
+ - compatible
+ - reg
+
+oneOf:
+ - required:
+ - power-supply
+ - required:
+ - vci-supply
+ - vddam-supply
+ - iovcc-supply
+ - pprech-supply
+ - vpp-supply
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ display@0 {
+ compatible = "leadtek,ltk035c5444t-spi", "newvision,nv3052c";
+ reg = <0>;
+
+ spi-max-frequency = <15000000>;
+ spi-3wire;
+ reset-gpios = <&gpe 2 GPIO_ACTIVE_LOW>;
+ backlight = <&backlight>;
+ power-supply = <&vcc>;
+
+ port {
+ panel_input: endpoint {
+ remote-endpoint = <&panel_output>;
+ };
+ };
+ };
+ };
+
+...
--
2.28.0
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