On Tue, Aug 27, 2019 at 10:25 PM Maxime Ripard <mripard@xxxxxxxxxx> wrote: > > From: Maxime Ripard <maxime.ripard@xxxxxxxxxxx> > > The Allwinner A33 SoC have an embedded audio codec 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 <maxime.ripard@xxxxxxxxxxx> > --- > .../sound/allwinner,sun8i-a33-codec.yaml | 57 +++++++++++++++++ > .../bindings/sound/sun8i-a33-codec.txt | 63 ------------------- > 2 files changed, 57 insertions(+), 63 deletions(-) > create mode 100644 Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml > delete mode 100644 Documentation/devicetree/bindings/sound/sun8i-a33-codec.txt > > diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml > new file mode 100644 > index 000000000000..5e7cc05bbff1 > --- /dev/null > +++ b/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml > @@ -0,0 +1,57 @@ > +# SPDX-License-Identifier: GPL-2.0 > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/sound/allwinner,sun8i-a33-codec.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Allwinner A33 Codec Device Tree Bindings > + > +maintainers: > + - Chen-Yu Tsai <wens@xxxxxxxx> > + - Maxime Ripard <maxime.ripard@xxxxxxxxxxx> > + > +properties: > + "#sound-dai-cells": > + const: 0 > + > + compatible: > + const: allwinner,sun8i-a33-codec > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + clocks: > + items: > + - description: Bus Clock > + - description: Module Clock > + > + clock-names: > + items: > + - const: bus > + - const: mod > + > +required: > + - "#sound-dai-cells" > + - compatible > + - reg > + - interrupts > + - clocks > + - clock-names > + > +additionalProperties: false > + > +examples: > + - | > + audio-codec@1c22e00 { > + #sound-dai-cells = <0>; > + compatible = "allwinner,sun8i-a33-codec"; > + reg = <0x01c22e00 0x400>; > + interrupts = <0 29 4>; > + clocks = <&ccu 47>, <&ccu 92>; > + clock-names = "bus", "mod"; > + }; > + > +... > diff --git a/Documentation/devicetree/bindings/sound/sun8i-a33-codec.txt b/Documentation/devicetree/bindings/sound/sun8i-a33-codec.txt > deleted file mode 100644 > index 7ecf6bd60d27..000000000000 > --- a/Documentation/devicetree/bindings/sound/sun8i-a33-codec.txt > +++ /dev/null > @@ -1,63 +0,0 @@ > -Allwinner SUN8I audio codec > ------------------------------------- > - > -On Sun8i-A33 SoCs, the audio is separated in different parts: > - - A DAI driver. It uses the "sun4i-i2s" driver which is > - documented here: > - Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-i2s.yaml > - - An analog part of the codec which is handled as PRCM registers. > - See Documentation/devicetree/bindings/sound/sun8i-codec-analog.txt > - - An digital part of the codec which is documented in this current > - binding documentation. > - - And finally, an audio card which links all the above components. > - The simple-audio card will be used. > - See Documentation/devicetree/bindings/sound/simple-card.txt > - > -This bindings documentation exposes Sun8i codec (digital part). > - > -Required properties: > -- compatible: must be "allwinner,sun8i-a33-codec" > -- reg: must contain the registers location and length > -- interrupts: must contain the codec interrupt > -- clocks: a list of phandle + clock-specifer pairs, one for each entry > - in clock-names. > -- clock-names: should contain followings: > - - "bus": the parent APB clock for this controller > - - "mod": the parent module clock > - > -Here is an example to add a sound card and the codec binding on sun8i SoCs that > -are similar to A33 using simple-card: > - > - sound { > - compatible = "simple-audio-card"; > - simple-audio-card,name = "sun8i-a33-audio"; > - simple-audio-card,format = "i2s"; > - simple-audio-card,frame-master = <&link_codec>; > - simple-audio-card,bitclock-master = <&link_codec>; > - simple-audio-card,mclk-fs = <512>; > - simple-audio-card,aux-devs = <&codec_analog>; > - simple-audio-card,routing = > - "Left DAC", "Digital Left DAC", > - "Right DAC", "Digital Right DAC"; At some point we should start listing the endpoints available for routing? ChenYu > - > - simple-audio-card,cpu { > - sound-dai = <&dai>; > - }; > - > - link_codec: simple-audio-card,codec { > - sound-dai = <&codec>; > - }; > - > - soc@1c00000 { > - [...] > - > - audio-codec@1c22e00 { > - #sound-dai-cells = <0>; > - compatible = "allwinner,sun8i-a33-codec"; > - reg = <0x01c22e00 0x400>; > - interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>; > - clocks = <&ccu CLK_BUS_CODEC>, <&ccu CLK_AC_DIG>; > - clock-names = "bus", "mod"; > - }; > - }; > - > -- > 2.21.0 >
