From: Abhinav Kumar <[email protected]> Add an API msm_dp_display_get_panel() to initialize and return a DP panel to be used by DP MST module. Since some of the fields of DP panel are private, dp_display module needs to initialize these parts and return the panel back.
Signed-off-by: Abhinav Kumar <[email protected]> Signed-off-by: Yongxing Mou <[email protected]> --- drivers/gpu/drm/msm/dp/dp_display.c | 27 +++++++++++++++++++++++++++ drivers/gpu/drm/msm/dp/dp_display.h | 2 ++ 2 files changed, 29 insertions(+) diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index c3be656f10ee..2a74302bcb7c 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -565,6 +565,33 @@ static int msm_dp_irq_hpd_handle(struct msm_dp_display_private *dp) return rc; } +struct msm_dp_panel *msm_dp_display_get_panel(struct msm_dp *msm_dp_display, + enum msm_dp_stream_id stream_id) +{ + struct msm_dp_display_private *dp; + struct msm_dp_panel *dp_panel; + + dp = container_of(msm_dp_display, struct msm_dp_display_private, msm_dp_display); + + if (stream_id >= DP_STREAM_MAX || stream_id >= dp->max_stream) { + DRM_ERROR("invalid stream_id %d\n", stream_id); + return NULL; + } + + dp_panel = msm_dp_panel_get(&dp->msm_dp_display.pdev->dev, dp->aux, dp->link, + dp->link_base, dp->mst2link_base, dp->mst3link_base, + dp->pixel_base[stream_id]); + + if (IS_ERR(dp_panel)) { + DRM_ERROR("failed to initialize panel\n"); + return NULL; + } + + dp_panel->stream_id = stream_id; + + return dp_panel; +} + static void msm_dp_display_deinit_sub_modules(struct msm_dp_display_private *dp) { msm_dp_audio_put(dp->audio); diff --git a/drivers/gpu/drm/msm/dp/dp_display.h b/drivers/gpu/drm/msm/dp/dp_display.h index 75dc40261723..676213a48089 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.h +++ b/drivers/gpu/drm/msm/dp/dp_display.h @@ -58,4 +58,6 @@ int msm_dp_display_set_mode_helper(struct msm_dp *msm_dp_display, int msm_dp_display_prepare_link(struct msm_dp *msm_dp_display); void msm_dp_display_unprepare(struct msm_dp *dp); +struct msm_dp_panel *msm_dp_display_get_panel(struct msm_dp *msm_dp_display, + enum msm_dp_stream_id stream_id); #endif /* _DP_DISPLAY_H_ */ -- 2.43.0
