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dt-bindings: virtio,mmio: Allow setting devices 'dma-coherent'

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'virtio,mmio' devices are always coherent within a guest. As Arm DTs
are default non-coherent, the 'dma-coherent' property needs to be set on
the virtio device to mark them as such. This aligns with the QEMU 'virt'
machine DTB.

Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220310013528.549030-1-robh@kernel.org
This commit is contained in:
Rob Herring 2022-03-09 19:35:27 -06:00
parent 094b10cb79
commit 6ac02df3ff
1 changed files with 2 additions and 0 deletions
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2
Documentation/devicetree/bindings/virtio/mmio.yaml
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@ -20,6 +20,8 @@ properties:
reg:
maxItems: 1
dma-coherent: true
interrupts:
maxItems: 1