Messages in this thread Patch in this message | | | From | John Stultz <> | Subject | [PATCH 2/8 v3] Documentation: bindings: k3dma: Add binding for hisi-dma-avail-chan | Date | Thu, 10 Jan 2019 09:34:06 -0800 |
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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@kernel.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Tanglei Han <hantanglei@huawei.com> Cc: Zhuangluan Su <suzhuangluan@hisilicon.com> Cc: Ryan Grachek <ryan@edited.us> Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Cc: dmaengine@vger.kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: John Stultz <john.stultz@linaro.org> --- 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
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