linux-kernel - Re: [PATCH] media: dt-bindings: qcom,sm8550-iris: Do not reference legacy venus properties

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Message-ID: <175625225420.764544.3673891026777851561.robh@kernel.org>
Date: Tue, 26 Aug 2025 18:50:54 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: linux-media@...r.kernel.org,
	Dikshita Agarwal <quic_dikshita@...cinc.com>,
	devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	Conor Dooley <conor+dt@...nel.org>,
	Abhinav Kumar <abhinav.kumar@...ux.dev>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	linux-kernel@...r.kernel.org,
	Vikash Garodia <quic_vgarodia@...cinc.com>,
	Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Subject: Re: [PATCH] media: dt-bindings: qcom,sm8550-iris: Do not reference
 legacy venus properties


On Sat, 23 Aug 2025 17:53:50 +0200, Krzysztof Kozlowski wrote:
> The Qualcomm SoC Iris video codec is an evolution of previous Venus and
> it comes with its own Iris Linux drivers.  These new drivers were
> accepted under condition they actually improve state of afairs, instead
> of duplicating old, legacy solutions.
> 
> Unfortunately binding still references common parts of Venus without
> actual need and benefit.  For example Iris does not use fake
> "video-firmware" device node (fake because there is no actual device
> underlying it and it was added only to work around some Linux issues
> with IOMMU mappings).
> 
> Stop referencing venus-common schema in the new Qualcomm Iris bindings
> and move all necessary properties, except unused "video-firmware" (no
> driver usage, no DTS).
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---
>  .../devicetree/bindings/media/qcom,sm8550-iris.yaml | 13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)
> 

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