Re: [PATCH v2 0/4] media: qcom: flip the switch between Venus and Iris drivers

From: Konrad Dybcio

Date: Tue Jan 27 2026 - 06:44:00 EST


On 1/26/26 3:09 AM, Dmitry Baryshkov wrote:
> As the Venus and Iris drivers are close to the "feature parity" for the
> common platforms (SC7280, SM8250), in order to get more attention to
> squashing bugs from the Iris driver, flip the switch and default to the
> Iris driver if both are enabled. The Iris driver has several
> regressions, but hopefully they can be fixed through the development
> cycle by the respective team. Also it is better to fail the test than
> crash the device (which Venus driver does a lot).
>
> Note: then intention is to land this in 6.21, which might let us to
> drop those platforms from the Venus driver in 6.22+.
>
> Testing methodology: fluster test-suite, single-threaded mode, SM8250
> device (RB5).
>
> $ ./fluster.py r -j 1 -d GStreamer-H.264-V4L2-Gst1.0 -s -so out-h264.md -ts JVT-AVC_V1
> $ ./fluster.py r -j 1 -d GStreamer-H.265-V4L2-Gst1.0 -s -so out-h265.md -ts JCT-VC-HEVC_V1
> $ ./fluster.py r -j 1 -d GStreamer-VP9-V4L2-Gst1.0 -s -so out-vp9.md
>
> For H.264:
>
> Only the main set was used on both platforms
>
> On Venus pass 126/135
> On Iris pass 78/135

This sounds a little bad..

[...]

> For Venus several tests crash the firmware or crash the device,
> so test-suite was executed with extra:

But this sounds way way worse

[...]

> For H.265:
>
> Only the main set was used on both platforms
>
> On Venus pass 135/147
> On Iris pass 133/147

[...]

> For VP9 codec:
>
> On Venus pass 174/311
> On Iris pass 232/311

These two give me hope..

Ultimately, I think it's the right thing to do, if only to prevent the
crashes you've described..

Konrad