Some dma channels can be reserved for secure mode or other hardware on the SoC, so provide a binding for a bitmask listing the available channels for the kernel to use. Cc: Vinod Koul <vkoul@xxxxxxxxxx> Cc: Rob Herring <robh+dt@xxxxxxxxxx> Cc: Mark Rutland <mark.rutland@xxxxxxx> Cc: Tanglei Han <hantanglei@xxxxxxxxxx> Cc: Zhuangluan Su <suzhuangluan@xxxxxxxxxxxxx> Cc: Ryan Grachek <ryan@xxxxxxxxx> Cc: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> Cc: dmaengine@xxxxxxxxxxxxxxx Cc: devicetree@xxxxxxxxxxxxxxx Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx> --- v3: Renamed to hisi-dma-avail-chan --- Documentation/devicetree/bindings/dma/k3dma.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/dma/k3dma.txt b/Documentation/devicetree/bindings/dma/k3dma.txt index 10a2f15..38825d4 100644 --- a/Documentation/devicetree/bindings/dma/k3dma.txt +++ b/Documentation/devicetree/bindings/dma/k3dma.txt @@ -14,6 +14,9 @@ Required properties: have specific request line - clocks: clock required +Optional properties: +- hisi-dma-avail-chan: Bitmask of available physical channels + Example: Controller: -- 2.7.4
