[v2,1/3] dt-bindings: dmaengine: dma-common: Change dma-channel-mask to uint32-array
diff mbox series

Message ID 20190910114559.22810-2-peter.ujfalusi@ti.com
State Needs Review / ACK
Headers show
Series
  • dmaengine: bindings/edma: dma-channel-mask to array
Related show

Checks

Context Check Description
robh/checkpatch success

Commit Message

Peter Ujfalusi Sept. 10, 2019, 11:45 a.m. UTC
Make the dma-channel-mask to be usable for controllers with more than 32
channels.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
 Documentation/devicetree/bindings/dma/dma-common.yaml | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

Patch
diff mbox series

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