Commit 4868d87c authored by Peter Ujfalusi's avatar Peter Ujfalusi Committed by Vinod Koul
Browse files

dt-bindings: dmaengine: dma-common: Change dma-channel-mask to uint32-array 



Make the dma-channel-mask to be usable for controllers with more than 32
channels.

Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20191025073056.25450-2-peter.ujfalusi@ti.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 7208474d

Documentation/devicetree/bindings/dma/dma-common.yaml

+8 −1
Original line number Diff line number Diff line
@@ -25,11 +25,18 @@ properties: 
      Used to provide DMA controller specific information.



  dma-channel-mask:

    $ref: /schemas/types.yaml#definitions/uint32

    description:

      Bitmask of available DMA channels in ascending order that are

      not reserved by firmware and are available to the

      kernel. i.e. first channel corresponds to LSB.

      The first item in the array is for channels 0-31, the second is for

      channels 32-63, etc.

    allOf:

      - $ref: /schemas/types.yaml#/definitions/uint32-array

    items:

      minItems: 1

      # Should be enough

      maxItems: 255



  dma-channels:

    $ref: /schemas/types.yaml#definitions/uint32

CRA Git | Maintained and supported by SUSTech CRA and CCSE