Make the dma-channel-mask to be usable for controllers with more than 32
channels.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
---
Documentation/devicetree/bindings/dma/dma-common.yaml | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/dma/dma-common.yaml b/Documentation/devicetree/bindings/dma/dma-common.yaml
index ed0a49a6f020..41460946be64 100644
--- a/Documentation/devicetree/bindings/dma/dma-common.yaml
+++ b/Documentation/devicetree/bindings/dma/dma-common.yaml
@@ -25,11 +25,19 @@ 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.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32-array
+ items:
+ minItems = 1
+ maxItems = 255 # Should be enough
+ - description: Mask of channels 0-31
+ - description: Mask of channels 32-63
+ ...
+ - description: Mask of chnanels X-(X+31)
dma-channels:
$ref: /schemas/types.yaml#definitions/uint32
--
Peter
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
