[PATCH 2/7] dt-bindings: media: sun4i-a10-video-engine: Fix SRAM count for H6

Chen-Yu Tsai
2026-05-05T13:48:21Z

On the H6, the SRAM C region includes an alias of part of the VE SRAM
used by the video engine. This region should also be claimed so that no
access happens through the alias window.

Add a second SRAM region phandle to the video engine for the H6.

Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
---
.../allwinner,sun4i-a10-video-engine.yaml | 21 ++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)

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 932043d7f0cc..818d815d4732 100644
--- a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
+++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
@@ -48,11 +48,15 @@ properties:

allwinner,sram:
$ref: /schemas/types.yaml#/definitions/phandle-array
+ minItems: 1
items:
- items:
- description: phandle to SRAM
- description: register value for device
- description: Phandle to the device SRAM
+ - items:
+ - description: phandle to SRAM alias
+ - description: register value for device
+ description: Phandle to the device SRAM(s)

iommus:
minItems: 1
@@ -101,6 +105,21 @@ allOf:
iommus:
maxItems: 1

+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun50i-h6-video-engine
+ then:
+ properties:
+ allwinner,sram:
+ minItems: 2
+ else:
+ properties:
+ allwinner,sram:
+ maxItems: 1
+
additionalProperties: false

examples:
--
2.47.3