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dt-bindings: display: convert sharp,lq101r1sx01 to DT Schema 

This binding describes a panel with a secondary channel.

v3:
  - Add reg property and unit-address to dsi nodes (Rob)

v2:
  - add check for required properties if link2 is present (Rob)

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200704102806.735713-4-sam@ravnborg.org
This commit is contained in:
Sam Ravnborg 2020-07-04 12:28:06 +02:00
parent c3823f2a4e
commit bb3431747a
2 changed files with 87 additions and 49 deletions
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49
Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.txt
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Sharp Microelectronics 10.1" WQXGA TFT LCD panel
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), left or even, 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, right or odd).
Note that in video mode the DSI-LINK1 interface always provides the left/even
pixels and DSI-LINK2 always provides the right/odd pixels. In command mode it
is possible to program either link to drive the left/even or right/odd pixels
but for the sake of consistency this binding assumes that the same assignment
is chosen as for video mode.
Required properties:
- compatible: should be "sharp,lq101r1sx01"
- reg: DSI virtual channel of the peripheral
Required properties (for DSI-LINK1 only):
- link2: phandle to the DSI peripheral on the secondary link. Note that the
presence of this property marks the containing node as DSI-LINK1.
- power-supply: phandle of the regulator that provides the supply voltage
Optional properties (for DSI-LINK1 only):
- backlight: phandle of the backlight device attached to the panel
Example:
dsi@54300000 {
panel: panel@0 {
compatible = "sharp,lq101r1sx01";
reg = <0>;
link2 = <&secondary>;
power-supply = <...>;
backlight = <...>;
};
};
dsi@54400000 {
secondary: panel@0 {
compatible = "sharp,lq101r1sx01";
reg = <0>;
};
};

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Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.yaml Normal file
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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/panel/sharp,lq101r1sx01.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Sharp Microelectronics 10.1" WQXGA TFT LCD panel
maintainers:
- Thierry Reding <treding@nvidia.com>
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), left or even, 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, right or odd).
Note that in video mode the DSI-LINK1 interface always provides the left/even
pixels and DSI-LINK2 always provides the right/odd pixels. In command mode it
is possible to program either link to drive the left/even or right/odd pixels
but for the sake of consistency this binding assumes that the same assignment
is chosen as for video mode.
allOf:
- $ref: panel-common.yaml#
properties:
compatible:
const: sharp,lq101r1sx01
reg: true
power-supply: true
backlight: true
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
additionalProperties: false
examples:
- |
dsi0: dsi@fd922800 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0xfd922800 0x200>;
panel: panel@0 {
compatible = "sharp,lq101r1sx01";
reg = <0>;
link2 = <&secondary>;
power-supply = <&power>;
backlight = <&backlight>;
};
};
dsi1: dsi@fd922a00 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0xfd922a00 0x200>;
secondary: panel@0 {
compatible = "sharp,lq101r1sx01";
reg = <0>;
};
};
...