From: Alex Hung <alex.hung@xxxxxxx>
[Why]
When userspace (IGT) inserts EDID with audio data (ELD), EDID
is not updated.
[How]
Implements force function (amdgpu_dm_connector_funcs_force) in
amdgpu_dm_connector_funcs to create emulated sink and to handle
EDID.
Reviewed-by: Hersen Wu <hersenxs.wu@xxxxxxx>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
Signed-off-by: Alex Hung <alex.hung@xxxxxxx>
Signed-off-by: Wenchieh Chien <wenchieh.chien@xxxxxxx>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 28 ++++++++++++++++++-
1 file changed, 27 insertions(+), 1 deletion(-)
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 e1565126ad2a..4db4f5a371a5 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6345,6 +6345,31 @@ amdgpu_dm_connector_late_register(struct drm_connector *connector)
return 0;
}
+void amdgpu_dm_connector_funcs_force(struct drm_connector *connector)
+{
+ struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+ struct dc_link *dc_link = aconnector->dc_link;
+ struct dc_sink *dc_em_sink = aconnector->dc_em_sink;
+ struct edid *edid;
+
+ if (!connector->edid_override)
+ return;
+
+ drm_edid_override_connector_update(&aconnector->base);
+ edid = aconnector->base.edid_blob_ptr->data;
+ aconnector->edid = edid;
+
+ /* Update emulated (virtual) sink's EDID */
+ if (dc_em_sink && dc_link) {
+ memset(&dc_em_sink->edid_caps, 0, sizeof(struct dc_edid_caps));
+ memmove(dc_em_sink->dc_edid.raw_edid, edid, (edid->extensions + 1) * EDID_LENGTH);
+ dm_helpers_parse_edid_caps(
+ dc_link,
+ &dc_em_sink->dc_edid,
+ &dc_em_sink->edid_caps);
+ }
+}
+
static const struct drm_connector_funcs amdgpu_dm_connector_funcs = {
.reset = amdgpu_dm_connector_funcs_reset,
.detect = amdgpu_dm_connector_detect,
@@ -6355,7 +6380,8 @@ static const struct drm_connector_funcs amdgpu_dm_connector_funcs = {
.atomic_set_property = amdgpu_dm_connector_atomic_set_property,
.atomic_get_property = amdgpu_dm_connector_atomic_get_property,
.late_register = amdgpu_dm_connector_late_register,
- .early_unregister = amdgpu_dm_connector_unregister
+ .early_unregister = amdgpu_dm_connector_unregister,
+ .force = amdgpu_dm_connector_funcs_force
};
static int get_modes(struct drm_connector *connector)
--
2.39.2
