linux-kernel - Re: [PATCH] media: qcom: venus: flip the venus/iris switch

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Message-ID: <9c1afc08-e584-48a5-808d-16711c4ecd4a@kernel.org>
Date: Thu, 20 Nov 2025 09:58:18 +0000
From: Bryan O'Donoghue <bod@...nel.org>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
 Vikash Garodia <vikash.garodia@....qualcomm.com>,
 Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>,
 Abhinav Kumar <abhinav.kumar@...ux.dev>,
 Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] media: qcom: venus: flip the venus/iris switch

On 19/11/2025 15:18, Dmitry Baryshkov wrote:
> With the Iris and Venus driver having more or less feature parity for
> "HFI 6xx" platforms and with Iris gaining support for SC7280, flip the
> switch. Use Iris by default for SM8250 and SC7280, the platforms which
> are supported by both drivers, and use Venus only if Iris is not
> compiled at all. Use IS_ENABLED to strip out the code and data
> structures which are used by the disabled platforms.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> ---
> Note: then intention is to land this in 6.20, which might let us to
> start dropping those platforms from the Venus driver in 6.21+.
In principal this seems fine. I think we should have a metrics as 
opposed to vibes based criteria for the drop though i.e. an analysis of 
encoder/decoder features supported and test comparators to show either 
nop or benefit from the switch.

---
bod