From 62a8ccf3a248cd222985ee5568b6bd6217282dbc Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Sun, 28 Jun 2020 20:08:04 +0200 Subject: arm64: dts: allwinner: h6: Fix Cedrus IOMMU usage Now that the IOMMU driver has been introduced, it prevents any access from a DMA master going through it that hasn't properly mapped the pages, and that link is set up through the iommus property. Unfortunately we forgot to add that property to the video engine node when adding the IOMMU node, so now any DMA access is broken. Fixes: b3a0a2f910c7 ("arm64: dts: allwinner: h6: Add IOMMU") Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20200628180804.79026-1-maxime@cerno.tech --- .../devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml index 526593c8c614..4cc1a670c986 100644 --- a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml +++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml @@ -47,6 +47,9 @@ properties: $ref: /schemas/types.yaml#/definitions/phandle-array description: Phandle to the device SRAM + iommus: + maxItems: 1 + memory-region: description: CMA pool to use for buffers allocation instead of the default -- cgit