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[2/6] media: dt-bindings: media: mediatek: Remove "dma-ranges" property for decoder

Message ID 20230130033305.31830-3-allen-kh.cheng@mediatek.com
State New
Headers
Series media: mediatek: Update video decoder nodes for MT8195 and MT8192 |

Commit Message

Allen-KH Cheng Jan. 30, 2023, 3:33 a.m. UTC 
  Because the decoder nodes already make use of the iommus property to
configure the IOMMU for address translations, having a dma-ranges
property makes no sense.

In fact, after commit f1ad5338a4d5 ("of: Fix "dma-ranges" handling for
bus controllers"), having a dma-ranges property causes IOMMU faults.

Remove the dma-ranges property and update the example.

Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
---
 .../bindings/media/mediatek,vcodec-subdev-decoder.yaml     | 7 -------
 1 file changed, 7 deletions(-)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
index 46308cdaacc0..7efc70ae4406 100644
--- a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
+++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
@@ -76,11 +76,6 @@  properties:
       The node of system control processor (SCP), using
       the remoteproc & rpmsg framework.
 
-  dma-ranges:
-    maxItems: 1
-    description: |
-      Describes the physical address space of IOMMU maps to memory.
-
   "#address-cells":
     const: 2
 
@@ -151,7 +146,6 @@  required:
   - reg
   - iommus
   - mediatek,scp
-  - dma-ranges
   - ranges
 
 if:
@@ -185,7 +179,6 @@  examples:
             compatible = "mediatek,mt8192-vcodec-dec";
             mediatek,scp = <&scp>;
             iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
-            dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
             #address-cells = <2>;
             #size-cells = <2>;
             ranges = <0 0 0 0x16000000 0 0x40000>;