Re: [PATCH v2 4/7] dt-bindings: dma: allwinner,sun50i-a64-dma: Add compatible for H616

From: Andre Przywara
Date: Mon Jan 29 2024 - 12:00:36 EST


On Sun, 28 Jan 2024 00:32:44 +0800
Chen-Yu Tsai <wens@xxxxxxxxxx> wrote:

Hi,

> From: Chen-Yu Tsai <wens@xxxxxxxx>
>
> The DMA controllers found on the H616 and H618 are the same as the one
> found on the A100. The only difference is the DMA endpoint (DRQ) layout.
>
> Since the number of channels and endpoints are described with additional
> generic properties, just add a new H616-specific compatible string and
> fallback to the A100 one.
>
> Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx>

Looks good, A100 is the right fallback string. dt-binding_check passed for
me.

Reviewed-by: Andre Przywara <andre.przywara@xxxxxxx>

Cheers,
Andre

> ---
> Changes since v1:
> - Switch to "contains" for if-properties statement
> - Fall back to A100 instead of H6
>
> .../bindings/dma/allwinner,sun50i-a64-dma.yaml | 12 ++++++++----
> 1 file changed, 8 insertions(+), 4 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/dma/allwinner,sun50i-a64-dma.yaml b/Documentation/devicetree/bindings/dma/allwinner,sun50i-a64-dma.yaml
> index ec2d7a789ffe..0f2501f72cca 100644
> --- a/Documentation/devicetree/bindings/dma/allwinner,sun50i-a64-dma.yaml
> +++ b/Documentation/devicetree/bindings/dma/allwinner,sun50i-a64-dma.yaml
> @@ -28,6 +28,9 @@ properties:
> - items:
> - const: allwinner,sun8i-r40-dma
> - const: allwinner,sun50i-a64-dma
> + - items:
> + - const: allwinner,sun50i-h616-dma
> + - const: allwinner,sun50i-a100-dma
>
> reg:
> maxItems: 1
> @@ -59,10 +62,11 @@ required:
> if:
> properties:
> compatible:
> - enum:
> - - allwinner,sun20i-d1-dma
> - - allwinner,sun50i-a100-dma
> - - allwinner,sun50i-h6-dma
> + contains:
> + enum:
> + - allwinner,sun20i-d1-dma
> + - allwinner,sun50i-a100-dma
> + - allwinner,sun50i-h6-dma
>
> then:
> properties: