[PATCH 01/19] drm/amd/display: update connector->display_info after read edid

[Rodrigo Siqueira]

From: Hersen Wu <hersenxs.wu at amd.com>

[Why]
drm_connector->display_info is not passed to amdgpu_dm right way after
read edid.

[How]
display_info is parsed from edid and saved into drm_connector by
drm_connector_update_edid_proerty which is called within
amdgpu_dm_update_connector_after_detect. call this function after read
edid to update drm_connector->display_info

Signed-off-by: Hersen Wu <hersenxs.wu at amd.com>
Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha at amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c  |  7 ++-----
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h  |  3 +++
 .../drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c  | 14 ++++++++++++++
 3 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 53e64d1a923d..914ab411955a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -132,9 +132,6 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev);
 /* removes and deallocates the drm structures, created by the above function */
 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm);
 
-static void
-amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector);
-
 static int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
 				struct drm_plane *plane,
 				unsigned long possible_crtcs,
@@ -1896,8 +1893,8 @@ static void update_connector_ext_caps(struct amdgpu_dm_connector *aconnector)
 	caps->aux_min_input_signal = min;
 }
 
-static void
-amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector)
+void amdgpu_dm_update_connector_after_detect(
+		struct amdgpu_dm_connector *aconnector)
 {
 	struct drm_connector *connector = &aconnector->base;
 	struct drm_device *dev = connector->dev;
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
index ae25c4c2e18e..3f0c6298b588 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -484,6 +484,9 @@ int amdgpu_dm_update_crtc_color_mgmt(struct dm_crtc_state *crtc);
 int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc,
 				      struct dc_plane_state *dc_plane_state);
 
+void amdgpu_dm_update_connector_after_detect(
+		struct amdgpu_dm_connector *aconnector);
+
 extern const struct drm_encoder_helper_funcs amdgpu_dm_encoder_helper_funcs;
 
 #endif /* __AMDGPU_DM_H__ */
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
index 2f2b0eb4ebcd..c20fb08c450b 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -580,6 +580,20 @@ enum dc_edid_status dm_helpers_read_local_edid(
 		/* We don't need the original edid anymore */
 		kfree(edid);
 
+		/* connector->display_info will be parsed from EDID and saved
+		 * into drm_connector->display_info from edid by call stack
+		 * below:
+		 * drm_parse_ycbcr420_deep_color_info
+		 * drm_parse_hdmi_forum_vsdb
+		 * drm_parse_cea_ext
+		 * drm_add_display_info
+		 * drm_connector_update_edid_property
+		 *
+		 * drm_connector->display_info will be used by amdgpu_dm funcs,
+		 * like fill_stream_properties_from_drm_display_mode
+		 */
+		amdgpu_dm_update_connector_after_detect(aconnector);
+
 		edid_status = dm_helpers_parse_edid_caps(
 						ctx,
 						&sink->dc_edid,
-- 
2.25.1