Re: [PATCH v4 12/39] drm/msm/dp: separate dp_display_prepare() into its own API

[Dmitry Baryshkov]

On Fri, Apr 10, 2026 at 05:33:47PM +0800, Yongxing Mou wrote:
> From: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
> 
> For MST, the link setup should only be done once when multiple sinks are
> enabled, while stream setup may run multiple times for each sink. Split
> the link-related preparation out of msm_dp_display_atomic_enable() so it
> can be called separately before the per-stream enable path.
> 
> Signed-off-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
> Signed-off-by: Yongxing Mou <yongxing.mou@xxxxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/msm/dp/dp_display.c | 16 +++++++++++-----
>  drivers/gpu/drm/msm/dp/dp_display.h |  5 +++--
>  drivers/gpu/drm/msm/dp/dp_drm.c     |  6 ++++--
>  3 files changed, 18 insertions(+), 9 deletions(-)
> 

In the hope that the atomic_prepare() function ends up being used as the
.atomic_prepare callback...

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>


-- 
With best wishes
Dmitry