On 30-03-22, 18:44, Martin Povišer wrote: > Apple's Audio DMA Controller (ADMAC) is used to fetch and store audio > samples on Apple SoCs from the "Apple Silicon" family. > > Signed-off-by: Martin Povišer <povik+lin@xxxxxxxxxxx> > --- > .../devicetree/bindings/dma/apple,admac.yaml | 73 +++++++++++++++++++ > 1 file changed, 73 insertions(+) > create mode 100644 Documentation/devicetree/bindings/dma/apple,admac.yaml > > diff --git a/Documentation/devicetree/bindings/dma/apple,admac.yaml b/Documentation/devicetree/bindings/dma/apple,admac.yaml > new file mode 100644 > index 000000000000..34f76a9a2983 > --- /dev/null > +++ b/Documentation/devicetree/bindings/dma/apple,admac.yaml > @@ -0,0 +1,73 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/dma/apple,admac.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Apple Audio DMA Controller (ADMAC) > + > +description: | > + Apple's Audio DMA Controller (ADMAC) is used to fetch and store > + audio samples on Apple SoCs from the "Apple Silicon" family. > + > +maintainers: > + - Martin Povišer <povik+lin@xxxxxxxxxxx> > + > +allOf: > + - $ref: "dma-controller.yaml#" > + > +properties: > + compatible: > + items: > + - enum: > + - apple,t6000-admac > + - apple,t8103-admac > + - const: apple,admac > + > + reg: > + maxItems: 1 > + > + '#dma-cells': > + const: 1 > + > + apple,internal-irq-destination: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: Index influencing internal routing of the IRQs > + within the peripheral. do you have more details for this, is this for peripheral and if so suited to be in dam-cells? > + > + interrupts: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + - '#dma-cells' > + - dma-channels > + - apple,internal-irq-destination > + - interrupts > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/interrupt-controller/apple-aic.h> > + #include <dt-bindings/interrupt-controller/irq.h> > + > + dart_sio: iommu@235004000 { > + compatible = "apple,t8103-dart", "apple,dart"; > + reg = <0x2 0x35004000 0x0 0x4000>; > + interrupt-parent = <&aic>; > + interrupts = <AIC_IRQ 635 IRQ_TYPE_LEVEL_HIGH>; > + #iommu-cells = <1>; > + }; > + > + admac: dma-controller@238200000 { > + compatible = "apple,t8103-admac", "apple,admac"; > + reg = <0x2 0x38200000 0x0 0x34000>; > + dma-channels = <12>; > + interrupt-parent = <&aic>; > + interrupts = <AIC_IRQ 626 IRQ_TYPE_LEVEL_HIGH>; > + #dma-cells = <1>; > + iommus = <&dart_sio 2>; > + apple,internal-irq-destination = <1>; > + }; > -- > 2.33.0 -- ~Vinod
