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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/sitronix,st7701.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sitronix ST7701 based LCD panels
+
+maintainers:
+ - Jagan Teki <jagan@amarulasolutions.com>
+
+description: |
+ ST7701 designed for small and medium sizes of TFT LCD display, is
+ capable of supporting up to 480RGBX864 in resolution. It provides
+ several system interfaces like MIPI/RGB/SPI.
+
+ Techstar TS8550B is 480x854, 2-lane MIPI DSI LCD panel which has
+ inbuilt ST7701 chip.
+
+ Densitron DMT028VGHMCMI-1A is 480x640, 2-lane MIPI DSI LCD panel
+ which has built-in ST7701 chip.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - anbernic,rg-arc-panel
+ - anbernic,rg28xx-panel
+ - densitron,dmt028vghmcmi-1a
+ - elida,kd50t048a
+ - techstar,ts8550b
+ - winstar,wf40eswaa6mnn0
+ - const: sitronix,st7701
+
+ reg:
+ description: DSI / SPI channel used by that screen
+ maxItems: 1
+
+ VCC-supply:
+ description: analog regulator for MIPI circuit
+
+ IOVCC-supply:
+ description: I/O system regulator
+
+ dc-gpios:
+ maxItems: 1
+ description:
+ Controller data/command selection (D/CX) in 4-line SPI mode.
+ If not set, the controller is in 3-line SPI mode.
+ Disallowed for DSI.
+
+ port: true
+ reset-gpios: true
+ rotation: true
+
+ backlight: true
+
+required:
+ - compatible
+ - reg
+ - VCC-supply
+ - IOVCC-supply
+ - port
+ - reset-gpios
+
+allOf:
+ - $ref: panel-common.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ # SPI connected panels
+ enum:
+ - anbernic,rg28xx-panel
+ then:
+ $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+ - if:
+ properties:
+ compatible:
+ not:
+ contains:
+ # DSI or SPI without D/CX pin
+ enum:
+ - anbernic,rg-arc-panel
+ - anbernic,rg28xx-panel
+ - densitron,dmt028vghmcmi-1a
+ - elida,kd50t048a
+ - techstar,ts8550b
+ then:
+ required:
+ - dc-gpios
+ else:
+ properties:
+ dc-gpios: false
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "techstar,ts8550b", "sitronix,st7701";
+ reg = <0>;
+ VCC-supply = <&reg_dldo2>;
+ IOVCC-supply = <&reg_dldo2>;
+ reset-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* LCD-RST: PD24 */
+ backlight = <&backlight>;
+
+ port {
+ mipi_in_panel: endpoint {
+ remote-endpoint = <&mipi_out_panel>;
+ };
+ };
+ };
+ };
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "anbernic,rg28xx-panel", "sitronix,st7701";
+ reg = <0>;
+ spi-max-frequency = <3125000>;
+ VCC-supply = <&reg_lcd>;
+ IOVCC-supply = <&reg_lcd>;
+ reset-gpios = <&pio 8 14 GPIO_ACTIVE_HIGH>; /* LCD-RST: PI14 */
+ backlight = <&backlight>;
+
+ port {
+ panel_in_rgb: endpoint {
+ remote-endpoint = <&tcon_lcd0_out_lcd>;
+ };
+ };
+ };
+ };