Subject: Re: [resend PATCH v6 01/12] dt-bindings: display: mediatek: Add mmsys binding description

From: CK Hu <[email-masked]>
Date: Mon, 9 Dec 2019 13:12:53 +0800

Hi, Matthias:

On Sat, 2019-12-07 at 23:47 +0100, [email-masked] wrote:
> From: Matthias Brugger <[email-masked]>
> 
> The MediaTek DRM has a block called mmsys, which sets
> the routing and enalbes the different blocks.
> This patch adds one line for the mmsys bindings description.
> 
> Signed-off-by: Matthias Brugger <[email-masked]>
> ---
>  .../display/mediatek/mediatek,disp.txt        | 28 ++++++++++---------
>  1 file changed, 15 insertions(+), 13 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> index 8469de510001..c71c8a4b73ff 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> @@ -27,20 +27,22 @@ Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt.
>  
>  Required properties (all function blocks):
>  - compatible: "mediatek,<chip>-disp-<function>", one of
> -	"mediatek,<chip>-disp-ovl"   - overlay (4 layers, blending, csc)
> -	"mediatek,<chip>-disp-rdma"  - read DMA / line buffer
> -	"mediatek,<chip>-disp-wdma"  - write DMA
> -	"mediatek,<chip>-disp-color" - color processor
> -	"mediatek,<chip>-disp-aal"   - adaptive ambient light controller
> -	"mediatek,<chip>-disp-gamma" - gamma correction
> -	"mediatek,<chip>-disp-merge" - merge streams from two RDMA sources
> -	"mediatek,<chip>-disp-split" - split stream to two encoders
> -	"mediatek,<chip>-disp-ufoe"  - data compression engine
> -	"mediatek,<chip>-dsi"        - DSI controller, see mediatek,dsi.txt
> -	"mediatek,<chip>-dpi"        - DPI controller, see mediatek,dpi.txt
> -	"mediatek,<chip>-disp-mutex" - display mutex
> -	"mediatek,<chip>-disp-od"    - overdrive
> +	"mediatek,<chip>-disp-ovl"		- overlay (4 layers, blending, csc)

This patch conflicts with 5.5-rc, please resend this patch base on
5.5-rc1.

> +	"mediatek,<chip>-disp-rdma"		- read DMA / line buffer
> +	"mediatek,<chip>-disp-wdma"		- write DMA
> +	"mediatek,<chip>-disp-color"		- color processor
> +	"mediatek,<chip>-disp-aal"		- adaptive ambient light controller
> +	"mediatek,<chip>-disp-gamma"		- gamma correction
> +	"mediatek,<chip>-disp-merge"		- merge streams from two RDMA sources
> +	"mediatek,<chip>-disp-split"		- split stream to two encoders
> +	"mediatek,<chip>-disp-ufoe"		- data compression engine
> +	"mediatek,<chip>-dsi"			- DSI controller, see mediatek,dsi.txt
> +	"mediatek,<chip>-dpi"			- DPI controller, see mediatek,dpi.txt
> +	"mediatek,<chip>-disp-mutex"		- display mutex
> +	"mediatek,<chip>-disp-od"		- overdrive
> +	"mediatek,<chip>-mmsys", "syscon"	- provide clocks and components management
>    the supported chips are mt2701, mt2712 and mt8173.

The original binding document for mmsys is in [1], I think we should not
define it in duplicate. Maybe you could remove the original document.

[1]
https://www.kernel.org/doc/Documentation/devicetree/bindings/arm/mediatek/mediatek%2Cmmsys.txt

Regards,
CK

> +
>  - reg: Physical base address and length of the function block register space
>  - interrupts: The interrupt signal from the function block (required, except for
>    merge and split function blocks).

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