linux-kernel - Re: [PATCH v3 1/3] dt-bindings: display: mediatek: Add OF graph support for board path

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Date: Tue, 7 May 2024 11:26:16 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: mripard@...nel.org, maarten.lankhorst@...ux.intel.com,
	krzysztof.kozlowski+dt@...aro.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, conor+dt@...nel.org, ck.hu@...iatek.com,
	airlied@...il.com, linux-mediatek@...ts.infradead.org,
	wenst@...omium.org, chunkuang.hu@...nel.org, daniel@...ll.ch,
	tzimmermann@...e.de, matthias.bgg@...il.com, jitao.shi@...iatek.com,
	shawn.sung@...iatek.com, linux-arm-kernel@...ts.infradead.org,
	p.zabel@...gutronix.de, dri-devel@...ts.freedesktop.org,
	kernel@...labora.com, yu-chang.lee@...iatek.com
Subject: Re: [PATCH v3 1/3] dt-bindings: display: mediatek: Add OF graph
 support for board path


On Thu, 02 May 2024 13:56:20 +0200, AngeloGioacchino Del Regno wrote:
> The display IPs in MediaTek SoCs support being interconnected with
> different instances of DDP IPs (for example, merge0 or merge1) and/or
> with different DDP IPs (for example, rdma can be connected with either
> color, dpi, dsi, merge, etc), forming a full Display Data Path that
> ends with an actual display.
> 
> The final display pipeline is effectively board specific, as it does
> depend on the display that is attached to it, and eventually on the
> sensors supported by the board (for example, Adaptive Ambient Light
> would need an Ambient Light Sensor, otherwise it's pointless!), other
> than the output type.
> 
> Add support for OF graphs to most of the MediaTek DDP (display) bindings
> to add flexibility to build custom hardware paths, hence enabling board
> specific configuration of the display pipeline and allowing to finally
> migrate away from using hardcoded paths.
> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> ---
>  .../display/mediatek/mediatek,aal.yaml        | 40 +++++++++++++++++++
>  .../display/mediatek/mediatek,ccorr.yaml      | 21 ++++++++++
>  .../display/mediatek/mediatek,color.yaml      | 22 ++++++++++
>  .../display/mediatek/mediatek,dither.yaml     | 22 ++++++++++
>  .../display/mediatek/mediatek,dpi.yaml        | 25 +++++++++++-
>  .../display/mediatek/mediatek,dsc.yaml        | 24 +++++++++++
>  .../display/mediatek/mediatek,dsi.yaml        | 27 ++++++++++++-
>  .../display/mediatek/mediatek,ethdr.yaml      | 22 ++++++++++
>  .../display/mediatek/mediatek,gamma.yaml      | 19 +++++++++
>  .../display/mediatek/mediatek,merge.yaml      | 23 +++++++++++
>  .../display/mediatek/mediatek,od.yaml         | 22 ++++++++++
>  .../display/mediatek/mediatek,ovl-2l.yaml     | 22 ++++++++++
>  .../display/mediatek/mediatek,ovl.yaml        | 22 ++++++++++
>  .../display/mediatek/mediatek,postmask.yaml   | 21 ++++++++++
>  .../display/mediatek/mediatek,rdma.yaml       | 22 ++++++++++
>  .../display/mediatek/mediatek,ufoe.yaml       | 21 ++++++++++
>  16 files changed, 372 insertions(+), 3 deletions(-)
> 

Reviewed-by: Rob Herring (Arm) <robh@...nel.org>