mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-01 06:39:05 +00:00
9fa6bcf23e
DSI-attached devices could respond to more than one virtual channel number, thus their bindings are supposed to constrain the 'reg' property to match hardware. Add missing 'reg' constrain for DSI-attached display panels, based on DTS sources in Linux kernel (assume all devices take only one channel number). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240509-dt-bindings-dsi-panel-reg-v1-3-8b2443705be0@linaro.org Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
97 lines
2.4 KiB
YAML
97 lines
2.4 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/display/panel/jdi,lpm102a188a.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: JDI LPM102A188A 2560x1800 10.2" DSI Panel
|
|
|
|
maintainers:
|
|
- Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
|
|
|
|
description: |
|
|
This panel requires a dual-channel DSI host to operate. It supports two modes:
|
|
- left-right: each channel drives the left or right half of the screen
|
|
- even-odd: each channel drives the even or odd lines of the screen
|
|
|
|
Each of the DSI channels controls a separate DSI peripheral. The peripheral
|
|
driven by the first link (DSI-LINK1) is considered the primary peripheral
|
|
and controls the device. The 'link2' property contains a phandle to the
|
|
peripheral driven by the second link (DSI-LINK2).
|
|
|
|
allOf:
|
|
- $ref: panel-common.yaml#
|
|
|
|
properties:
|
|
compatible:
|
|
const: jdi,lpm102a188a
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
enable-gpios: true
|
|
reset-gpios: true
|
|
power-supply: true
|
|
backlight: true
|
|
|
|
ddi-supply:
|
|
description: The regulator that provides IOVCC (1.8V).
|
|
|
|
link2:
|
|
$ref: /schemas/types.yaml#/definitions/phandle
|
|
description: |
|
|
phandle to the DSI peripheral on the secondary link. Note that the
|
|
presence of this property marks the containing node as DSI-LINK1.
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
|
|
if:
|
|
required:
|
|
- link2
|
|
then:
|
|
required:
|
|
- power-supply
|
|
- ddi-supply
|
|
- enable-gpios
|
|
- reset-gpios
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/gpio/gpio.h>
|
|
#include <dt-bindings/gpio/tegra-gpio.h>
|
|
|
|
dsia: dsi@54300000 {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
reg = <0x0 0x54300000 0x0 0x00040000>;
|
|
|
|
link2: panel@0 {
|
|
compatible = "jdi,lpm102a188a";
|
|
reg = <0>;
|
|
};
|
|
};
|
|
|
|
dsib: dsi@54400000{
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
reg = <0x0 0x54400000 0x0 0x00040000>;
|
|
nvidia,ganged-mode = <&dsia>;
|
|
|
|
link1: panel@0 {
|
|
compatible = "jdi,lpm102a188a";
|
|
reg = <0>;
|
|
power-supply = <&pplcd_vdd>;
|
|
ddi-supply = <&pp1800_lcdio>;
|
|
enable-gpios = <&gpio TEGRA_GPIO(V, 1) GPIO_ACTIVE_HIGH>;
|
|
reset-gpios = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_LOW>;
|
|
link2 = <&link2>;
|
|
backlight = <&backlight>;
|
|
};
|
|
};
|
|
|
|
...
|