diff options
Diffstat (limited to 'Documentation/devicetree/bindings/display/panel/sitronix,st7701.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/display/panel/sitronix,st7701.yaml | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/panel/sitronix,st7701.yaml b/Documentation/devicetree/bindings/display/panel/sitronix,st7701.yaml new file mode 100644 index 000000000000..1e434240ea3f --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/sitronix,st7701.yaml @@ -0,0 +1,144 @@ +# 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 = <®_dldo2>; + IOVCC-supply = <®_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 = <®_lcd>; + IOVCC-supply = <®_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>; + }; + }; + }; + }; |
