On 27/04/2022 13:25, Andre Przywara wrote: > The Arm PrimeCell Advanced Audio CODEC Interface (AACI aka PL041) is > a peripheral that provides communication with an audio CODEC. > > Add a simple DT schema binding for it, so that DTs can be validated > automatically. > > Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx> > --- > .../devicetree/bindings/sound/amba-pl041.yaml | 62 +++++++++++++++++++ > 1 file changed, 62 insertions(+) > create mode 100644 Documentation/devicetree/bindings/sound/amba-pl041.yaml > > diff --git a/Documentation/devicetree/bindings/sound/amba-pl041.yaml b/Documentation/devicetree/bindings/sound/amba-pl041.yaml > new file mode 100644 > index 0000000000000..f00796d5ea473 > --- /dev/null > +++ b/Documentation/devicetree/bindings/sound/amba-pl041.yaml Filename: vendor,device, so "arm,amba-pl041" or "arm,pl041" > @@ -0,0 +1,62 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/sound/amba-pl041.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Arm Ltd. PrimeCell PL041 AACI sound interface > + > +maintainers: > + - Andre Przywara <andre.przywara@xxxxxxx> > + > +description: > + The Arm PrimeCell Advanced Audio CODEC Interface (AACI) is an AMBA compliant > + peripheral that provides communication with an audio CODEC using the AC-link > + protocol. > + > +# We need a select here so we don't match all nodes with 'arm,primecell' > +select: > + properties: > + compatible: > + contains: > + const: arm,pl041 > + required: > + - compatible > + > +properties: > + compatible: > + items: > + - const: arm,pl041 > + - const: arm,primecell > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + clocks: > + description: APB register access clock > + > + clock-names: > + const: apb_pclk > + > +required: > + - compatible > + - reg > + - interrupts > + - clocks > + > +additionalProperties: false > + > +examples: > + - | > + aaci@40000 { Would be nice to find here a generic node name, so "audio-controller"? It's not a codec, right? > + compatible = "arm,pl041", "arm,primecell"; > + reg = <0x040000 0x1000>; > + interrupts = <11>; > + clocks = <&v2m_clk24mhz>; > + clock-names = "apb_pclk"; > + }; > + > +... Best regards, Krzysztof
