Re: [PATCH v4] drm/msm/dp: make eDP panel as the first connected connector
From: Stephen Boyd
Date: Thu Jul 07 2022 - 19:55:11 EST
Quoting Kuogee Hsieh (2022-07-06 12:32:08)
> Some userspace presumes that the first connected connector is the main
> display, where it's supposed to display e.g. the login screen. For
> laptops, this should be the main panel.
>
> This patch call drm_helper_move_panel_connectors_to_head() after
> drm_bridge_connector_init() to make sure eDP stay at head of
> connected connector list. This fixes unexpected corruption happen
> at eDP panel if eDP is not placed at head of connected connector
> list.
>
> Changes in v2:
> -- move drm_helper_move_panel_connectors_to_head() to
> dpu_kms_drm_obj_init()
>
> Changes in v4:
> -- move drm_helper_move_panel_connectors_to_head() to msm_drm_init()
>
> Signed-off-by: Kuogee Hsieh <quic_khsieh@xxxxxxxxxxx>
> ---
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>