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dt-bindings: serio: Convert Allwinner PS2 controller to a schema

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The older Allwinner SoCs have a PS2 controller that is supported in Linux,
with a matching Device Tree binding.

Now that we have the DT validation in place, let's convert the device tree
bindings for that controller over to a YAML schemas.

Signed-off-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Maxime Ripard 2019-10-02 14:06:45 +02:00 committed by Rob Herring
parent 3130c26a26
commit d9b11fccb2
2 changed files with 51 additions and 22 deletions
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51
Documentation/devicetree/bindings/serio/allwinner,sun4i-a10-ps2.yaml Normal file
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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/serio/allwinner,sun4i-a10-ps2.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Allwinner A10 PS2 Host Controller Device Tree Bindings
maintainers:
- Chen-Yu Tsai <wens@csie.org>
- Maxime Ripard <maxime.ripard@bootlin.com>
description:
A20 PS2 is dual role controller (PS2 host and PS2 device). These
bindings for PS2 A10/A20 host controller. IBM compliant IBM PS2 and
AT-compatible keyboard and mouse can be connected.
properties:
compatible:
const: allwinner,sun4i-a10-ps2
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
maxItems: 1
required:
- compatible
- reg
- interrupts
- clocks
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/sun7i-a20-ccu.h>
ps20: ps2@1c2a000 {
compatible = "allwinner,sun4i-a10-ps2";
reg = <0x01c2a000 0x400>;
interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ccu CLK_APB1_PS20>;
};
...

22
Documentation/devicetree/bindings/serio/allwinner,sun4i-ps2.txt
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* Device tree bindings for Allwinner A10, A20 PS2 host controller
A20 PS2 is dual role controller (PS2 host and PS2 device). These bindings are
for PS2 A10/A20 host controller. IBM compliant IBM PS2 and AT-compatible keyboard
and mouse can be connected.
Required properties:
- reg : Offset and length of the register set for the device.
- compatible : Should be as of the following:
- "allwinner,sun4i-a10-ps2"
- interrupts : The interrupt line connected to the PS2.
- clocks : The gate clk connected to the PS2.
Example:
ps20: ps2@01c2a000 {
compatible = "allwinner,sun4i-a10-ps2";
reg = <0x01c2a000 0x400>;
interrupts = <0 62 4>;
clocks = <&apb1_gates 6>;
};