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Allwinner MIPI DSI controllers are supplied with SoC DSI power rails via VCC-DSI pin. Some board still work without supplying this but give more faith on datasheet and hardware schematics and document this supply property in required property list. Reviewed-by: Rob Herring <robh@kernel.org> Tested-by: Merlijn Wajer <merlijn@wizzup.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Signed-off-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191003064527.15128-5-jagan@amarulasolutions.com
106 lines
2.1 KiB
YAML
106 lines
2.1 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/display/allwinner,sun6i-a31-mipi-dsi.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Allwinner A31 MIPI-DSI Controller Device Tree Bindings
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maintainers:
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- Chen-Yu Tsai <wens@csie.org>
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- Maxime Ripard <maxime.ripard@bootlin.com>
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properties:
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"#address-cells": true
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"#size-cells": true
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compatible:
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const: allwinner,sun6i-a31-mipi-dsi
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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clocks:
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items:
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- description: Bus Clock
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- description: Module Clock
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clock-names:
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items:
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- const: bus
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- const: mod
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resets:
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maxItems: 1
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vcc-dsi-supply:
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description: VCC-DSI power supply of the DSI encoder
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phys:
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maxItems: 1
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phy-names:
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const: dphy
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port:
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type: object
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description:
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A port node with endpoint definitions as defined in
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Documentation/devicetree/bindings/media/video-interfaces.txt. That
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port should be the input endpoint, usually coming from the
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associated TCON.
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patternProperties:
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"^panel@[0-9]+$": true
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required:
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- "#address-cells"
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- "#size-cells"
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- compatible
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- reg
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- interrupts
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- clocks
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- clock-names
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- phys
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- phy-names
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- resets
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- vcc-dsi-supply
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- port
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additionalProperties: false
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examples:
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- |
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dsi0: dsi@1ca0000 {
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compatible = "allwinner,sun6i-a31-mipi-dsi";
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reg = <0x01ca0000 0x1000>;
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interrupts = <0 89 4>;
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clocks = <&ccu 23>, <&ccu 96>;
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clock-names = "bus", "mod";
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resets = <&ccu 4>;
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phys = <&dphy0>;
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phy-names = "dphy";
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vcc-dsi-supply = <®_dcdc1>;
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#address-cells = <1>;
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#size-cells = <0>;
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panel@0 {
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compatible = "bananapi,lhr050h41", "ilitek,ili9881c";
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reg = <0>;
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power-gpios = <&pio 1 7 0>; /* PB07 */
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reset-gpios = <&r_pio 0 5 1>; /* PL05 */
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backlight = <&pwm_bl>;
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};
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port {
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dsi0_in_tcon0: endpoint {
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remote-endpoint = <&tcon0_out_dsi0>;
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};
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};
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};
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...
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