dt-bindings: dma: ti-edma: Document dma-channel-mask for EDMA (115b60a9) · Commits · 戴 / test

Similarly to paRAM slots, channels can be used by other cores. The common dma-channel-mask property can be used for specifying the available channels. Signed-off-by:

Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by:

Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20191025073056.25450-3-peter.ujfalusi@ti.com Signed-off-by:

Vinod Koul <vkoul@kernel.org>

Documentation/devicetree/bindings/dma/ti-edma.txt

+8 −0

Original line number	Diff line number	Diff line
		@@ -42,6 +42,11 @@ Optional properties:
		- ti,edma-reserved-slot-ranges: PaRAM slot ranges which should not be used by
		the driver, they are allocated to be used by for example the
		DSP. See example.
		- dma-channel-mask: Mask of usable channels.
		Single uint32 for EDMA with 32 channels, array of two uint32 for
		EDMA with 64 channels. See example and
		Documentation/devicetree/bindings/dma/dma-common.yaml


		------------------------------------------------------------------------------
		eDMA3 Transfer Controller
		@@ -91,6 +96,9 @@ edma: edma@49000000 {
		ti,edma-memcpy-channels = <20 21>;
		/* The following PaRAM slots are reserved: 35-44 and 100-109 */
		ti,edma-reserved-slot-ranges = <35 10>, <100 10>;
		/* The following channels are reserved: 35-44 */
		dma-channel-mask = <0xffffffff /* Channel 0-31 */
		0xffffe007>; /* Channel 32-63 */
		};

		edma_tptc0: tptc@49800000 {

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