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ASoC: convert rk3328 codec binding to yaml

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This patch converts Rockchip rk3328 audio codec binding to DT schema.
And adds description about "mclk" clock and fixes some errors in
original example.

Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200714073247.172859-1-katsuhiro@katsuster.net
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Katsuhiro Suzuki 2020-07-14 16:32:47 +09:00 committed by Mark Brown
parent f50d67f9ef
commit 3f6597ad2f
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GPG Key ID: 24D68B725D5487D0
2 changed files with 69 additions and 28 deletions
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28
Documentation/devicetree/bindings/sound/rockchip,rk3328-codec.txt
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* Rockchip Rk3328 internal codec
Required properties:
- compatible: "rockchip,rk3328-codec"
- reg: physical base address of the controller and length of memory mapped
region.
- rockchip,grf: the phandle of the syscon node for GRF register.
- clocks: a list of phandle + clock-specifer pairs, one for each entry in clock-names.
- clock-names: should be "pclk".
- spk-depop-time-ms: speak depop time msec.
Optional properties:
- mute-gpios: GPIO specifier for external line driver control (typically the
dedicated GPIO_MUTE pin)
Example for rk3328 internal codec:
codec: codec@ff410000 {
compatible = "rockchip,rk3328-codec";
reg = <0x0 0xff410000 0x0 0x1000>;
rockchip,grf = <&grf>;
clocks = <&cru PCLK_ACODEC>;
clock-names = "pclk";
mute-gpios = <&grf_gpio 0 GPIO_ACTIVE_LOW>;
spk-depop-time-ms = 100;
};

69
Documentation/devicetree/bindings/sound/rockchip,rk3328-codec.yaml Normal file
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/rockchip,rk3328-codec.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Rockchip rk3328 internal codec
maintainers:
- Heiko Stuebner <heiko@sntech.de>
properties:
compatible:
const: rockchip,rk3328-codec
reg:
maxItems: 1
clocks:
items:
- description: clock for audio codec
- description: clock for I2S master clock
clock-names:
items:
- const: pclk
- const: mclk
rockchip,grf:
$ref: /schemas/types.yaml#/definitions/phandle
description:
The phandle of the syscon node for the GRF register.
spk-depop-time-ms:
default: 200
description:
Speaker depop time in msec.
mute-gpios:
maxItems: 1
description:
GPIO specifier for external line driver control (typically the
dedicated GPIO_MUTE pin)
"#sound-dai-cells":
const: 0
required:
- compatible
- reg
- clocks
- clock-names
- rockchip,grf
- "#sound-dai-cells"
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/clock/rk3328-cru.h>
codec: codec@ff410000 {
compatible = "rockchip,rk3328-codec";
reg = <0xff410000 0x1000>;
clocks = <&cru PCLK_ACODECPHY>, <&cru SCLK_I2S1>;
clock-names = "pclk", "mclk";
rockchip,grf = <&grf>;
mute-gpios = <&grf_gpio 0 GPIO_ACTIVE_LOW>;
spk-depop-time-ms = <100>;
#sound-dai-cells = <0>;
};