Re: [PATCH v9 1/4] drm/msm/dp: Add eDP support via aux_bus

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Hi,

On Fri, Apr 22, 2022 at 2:11 AM Sankeerth Billakanti
<quic_sbillaka@xxxxxxxxxxx> wrote:
>
> This patch adds support for generic eDP sink through aux_bus. The eDP/DP
> controller driver should support aux transactions originating from the
> panel-edp driver and hence should be initialized and ready.
>
> The panel bridge supporting the panel should be ready before the bridge
> connector is initialized. The generic panel probe needs the controller
> resources to be enabled to support the aux transactions originating from
> the panel probe.
>
> Signed-off-by: Sankeerth Billakanti <quic_sbillaka@xxxxxxxxxxx>
> ---
> Changes in v9:
>   - add comments for panel probe
>   - modify the error handling checks
>
> Changes in v8:
>   - handle corner cases
>   - add comment for the bridge ops
>
> Changes in v7:
>   - aux_bus is mandatory for eDP
>   - connector type check modified to just check for eDP
>
> Changes in v6:
>   - Remove initialization
>   - Fix aux_bus node leak
>   - Split the patches
>
>  drivers/gpu/drm/msm/dp/dp_display.c | 73 +++++++++++++++++++++++++++++++++++--
>  drivers/gpu/drm/msm/dp/dp_display.h |  1 +
>  drivers/gpu/drm/msm/dp/dp_drm.c     | 21 +++++++++--
>  drivers/gpu/drm/msm/dp/dp_parser.c  | 23 +-----------
>  drivers/gpu/drm/msm/dp/dp_parser.h  | 13 ++++++-
>  5 files changed, 101 insertions(+), 30 deletions(-)

Reviewed-by: Douglas Anderson <dianders@xxxxxxxxxxxx>



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