Re: [PATCH v7 07/35] drm/msm/dp: add stream-aware link register accessors

[Dmitry Baryshkov]

On Tue, Sep 29, 2026 at 12:25:31PM +0800, Yongxing Mou wrote:
> DisplayPort MST uses multiple stream-specific register spaces. Streams
> 0 and 1 share the primary link register block with different register
> offsets, while streams 2 and 3 use dedicated MST link register blocks.
> 
> Add stream-aware register access helpers that translate stream-specific
> register offsets and route accesses to the appropriate register space
> based on the stream id.
> 
> Signed-off-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
> Signed-off-by: Yongxing Mou <yongxing.mou@xxxxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/msm/dp/dp_ctrl.c    | 64 +++++++++++++++++++++++++++++++++----
>  drivers/gpu/drm/msm/dp/dp_ctrl.h    |  4 ++-
>  drivers/gpu/drm/msm/dp/dp_display.c | 26 +++++++++++++--
>  drivers/gpu/drm/msm/dp/dp_panel.c   | 37 +++++++++++++++++++--
>  drivers/gpu/drm/msm/dp/dp_panel.h   |  2 ++
>  5 files changed, 121 insertions(+), 12 deletions(-)
> 

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


-- 
With best wishes
Dmitry