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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2019-10-25 10:30:54 +0300
committerVinod Koul <vkoul@kernel.org>2019-11-05 20:00:28 +0300
commit4868d87c18aa47ed155f48167387a3b716b461d1 (patch)
treeed8daa3bc5125e90feac9f550ce18e7675263632 /Documentation/devicetree/bindings/dma/dma-common.yaml
parent7208474d1c7af9f86dfb1f20bfa2abbe22ad2017 (diff)
downloadlinux-4868d87c18aa47ed155f48167387a3b716b461d1.tar.xz
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: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20191025073056.25450-2-peter.ujfalusi@ti.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/dma/dma-common.yaml')
-rw-r--r--Documentation/devicetree/bindings/dma/dma-common.yaml9
1 files changed, 8 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/dma/dma-common.yaml b/Documentation/devicetree/bindings/dma/dma-common.yaml
index ed0a49a6f020..02a34ba2b49b 100644
--- a/Documentation/devicetree/bindings/dma/dma-common.yaml
+++ b/Documentation/devicetree/bindings/dma/dma-common.yaml
@@ -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