diff mbox series

[02/14] dt-bindings: media: sun4i-csi: Add compatible for CSI0 on R40

Message ID 20191215165924.28314-3-wens@kernel.org (mailing list archive)
State New, archived
Headers show
Series media: sun4i-csi: A10/A20 CSI1 and R40 CSI0 support | expand

Commit Message

Chen-Yu Tsai Dec. 15, 2019, 4:59 p.m. UTC 
From: Chen-Yu Tsai <wens@csie.org>

The CSI0 block in the Allwinner R40 SoC looks to be the same as the one
in the A20. The register maps line up, and they support the same
features. The R40 appears to support BT.1120 based on the feature
overview, but it is not mentioned anywhere else. Also like the A20, the
ISP is not mentioned, but the CSI special clock needs to be enabled for
the hardware to function. The manual does state that the CSI special
clock is the TOP clock for all CSI hardware, but currently no hardware
exists for us to test if CSI1 also depends on it or not.

Add a compatible string for the CSI0 block in the R40, with the A20
compatible string as a fallback.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 .../devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml     | 3 +++
 1 file changed, 3 insertions(+)

Comments

Maxime Ripard Dec. 16, 2019, 10:30 a.m. UTC | #1 
On Mon, Dec 16, 2019 at 12:59:12AM +0800, Chen-Yu Tsai wrote:
> From: Chen-Yu Tsai <wens@csie.org>
>
> The CSI0 block in the Allwinner R40 SoC looks to be the same as the one
> in the A20. The register maps line up, and they support the same
> features. The R40 appears to support BT.1120 based on the feature
> overview, but it is not mentioned anywhere else. Also like the A20, the
> ISP is not mentioned, but the CSI special clock needs to be enabled for
> the hardware to function. The manual does state that the CSI special
> clock is the TOP clock for all CSI hardware, but currently no hardware
> exists for us to test if CSI1 also depends on it or not.
>
> Add a compatible string for the CSI0 block in the R40, with the A20
> compatible string as a fallback.
>
Acked-by: Maxime Ripard <mripard@kernel.org>

Maxime
Rob Herring (Arm) Dec. 19, 2019, 11:57 p.m. UTC | #2 
On Mon, 16 Dec 2019 00:59:12 +0800, Chen-Yu Tsai wrote:
> From: Chen-Yu Tsai <wens@csie.org>
> 
> The CSI0 block in the Allwinner R40 SoC looks to be the same as the one
> in the A20. The register maps line up, and they support the same
> features. The R40 appears to support BT.1120 based on the feature
> overview, but it is not mentioned anywhere else. Also like the A20, the
> ISP is not mentioned, but the CSI special clock needs to be enabled for
> the hardware to function. The manual does state that the CSI special
> clock is the TOP clock for all CSI hardware, but currently no hardware
> exists for us to test if CSI1 also depends on it or not.
> 
> Add a compatible string for the CSI0 block in the R40, with the A20
> compatible string as a fallback.
> 
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
> ---
>  .../devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml     | 3 +++
>  1 file changed, 3 insertions(+)
> 

Acked-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml
index 221fe630c7d5..d486321b13f5 100644
--- a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml
+++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml
@@ -22,6 +22,9 @@  properties:
       - items:
         - const: allwinner,sun7i-a20-csi1
         - const: allwinner,sun4i-a10-csi1
+      - items:
+        - const: allwinner,sun8i-r40-csi0
+        - const: allwinner,sun7i-a20-csi0
 
   reg:
     maxItems: 1