Re: [PATCH v4 0/3] Fix concurrency issues between G1 and G2 on

[Ming Qian(OSS)]

Hi Uffe,

On 12/30/2025 9:42 PM, Ulf Hansson wrote:
> On Fri, 5 Dec 2025 at 02:55, <ming.qian@xxxxxxxxxxx> wrote:
> > From: Ming Qian <ming.qian@xxxxxxxxxxx>
> >
> > On the i.MX8MQ, we encountered some concurrency issues with H264 and HEVC
> > decoding.
> >
> > There are two main reasons:
> > 1. The vpu blk-ctrl don't have separate reset and clock enable bits.
> > 2. The g1 VPU and g2 VPU cannot decode simultaneously.
> >
> > We attempted to make corresponding fix to address these two issues.
> >
> > Ming Qian (2):
> >    pmdomain: imx8m-blk-ctrl: Remove separate rst and clk mask for 8mq vpu
> >    media: verisilicon: Avoid G2 bus error while decoding H.264 and HEVC
> >
> > Nicolas Dufresne (1):
> >    media: v4l2-mem2mem: Add a kref to the v4l2_m2m_dev structure
> >
> >   drivers/media/platform/verisilicon/hantro.h   |  2 +
> >   .../media/platform/verisilicon/hantro_drv.c   | 42 +++++++++++++++++--
> >   .../media/platform/verisilicon/imx8m_vpu_hw.c |  8 ++++
> >   drivers/media/v4l2-core/v4l2-mem2mem.c        | 23 ++++++++++
> >   drivers/pmdomain/imx/imx8m-blk-ctrl.c         | 11 +++--
> >   include/media/v4l2-mem2mem.h                  | 21 ++++++++++
> >   6 files changed, 100 insertions(+), 7 deletions(-)
>
> Can I pick the pmdomain patch separately from the others? Or does this
> need to go together?
>
> Kind regards
> Uffe

I think you can pick the pmdomain patch separately.

Regards,
Ming