| Message ID | 20241205-dp_mst-v1-30-f8618d42a99a@quicinc.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/msm/dp: Add MST support for MSM chipsets | expand |
On Thu, Dec 05, 2024 at 08:32:01PM -0800, Abhinav Kumar wrote: > Add an API 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 <quic_abhinavk@quicinc.com> > --- > drivers/gpu/drm/msm/dp/dp_display.c | 28 ++++++++++++++++++++++++++++ > drivers/gpu/drm/msm/dp/dp_display.h | 2 ++ > 2 files changed, 30 insertions(+) > Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index a67bc7c1b83a5a9996435804ff7337f72dae93a0..60316633cc6bcfdfad8ab356d803642d353add61 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -753,6 +753,34 @@ static int msm_dp_irq_hpd_handle(struct msm_dp_display_private *dp, u32 data) return 0; } +struct msm_dp_panel *msm_dp_display_get_panel(struct msm_dp *dp_display) +{ + struct msm_dp_display_private *dp; + struct msm_dp_panel *dp_panel; + + struct msm_dp_panel_in panel_in; + + dp = container_of(dp_display, struct msm_dp_display_private, msm_dp_display); + + panel_in.dev = &dp_display->pdev->dev; + panel_in.aux = dp->aux; + panel_in.catalog = dp->catalog; + panel_in.link = dp->link; + + dp_panel = msm_dp_panel_get(&panel_in); + + if (IS_ERR(dp->panel)) { + DRM_ERROR("failed to initialize panel\n"); + return NULL; + } + + memcpy(dp_panel->dpcd, dp->panel->dpcd, DP_RECEIVER_CAP_SIZE + 1); + memcpy(&dp_panel->link_info, &dp->panel->link_info, + sizeof(dp->panel->link_info)); + + 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 f1142b7b96c372b49e8e45dd0378eb507b081915..6ab14e969bce0fd07b3a550bae17e99652479232 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.h +++ b/drivers/gpu/drm/msm/dp/dp_display.h @@ -68,4 +68,6 @@ void msm_dp_display_unprepare(struct msm_dp *dp); int msm_dp_display_get_active_stream_cnt(struct msm_dp *msm_dp); +struct msm_dp_panel *msm_dp_display_get_panel(struct msm_dp *dp_display); + #endif /* _DP_DISPLAY_H_ */
Add an API 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 <quic_abhinavk@quicinc.com> --- drivers/gpu/drm/msm/dp/dp_display.c | 28 ++++++++++++++++++++++++++++ drivers/gpu/drm/msm/dp/dp_display.h | 2 ++ 2 files changed, 30 insertions(+)