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 <[email protected]> Cc: Rob Herring <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Tanglei Han <[email protected]> Cc: Zhuangluan Su <[email protected]> Cc: Ryan Grachek <[email protected]> Cc: Manivannan Sadhasivam <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: John Stultz <[email protected]> --- 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..1c466c1 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: +- dma-avail-chan: Bitmask of available physical channels + Example: Controller: -- 2.7.4
