> On 31. 3. 2022, at 8:50, Martin Povišer <povik@xxxxxxxxxxx> wrote: > >> >> On 31. 3. 2022, at 7:23, Vinod Koul <vkoul@xxxxxxxxxx> wrote: >> >> 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 > >>> + 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? > > By peripheral I meant the DMA controller itself here. > > Effectively the controller has four independent IRQ outputs and the driver > needs to know which one we are using. (It need to be the same output even > for different ADMAC instances on one die.) Pardon, got an evil typo there: It need *not* be the same output... (And pardon the other rich non-plaintext reply...)
