[PATCH 01/23] drm/amd/display: Determine DVI-I connector type (v2)

["Timur Kristóf" <timur.kristof@gmail.com>]

DC determines the DRM connector type based on the
signal type, which becomes problematic when a connector may
support different signal types, such as DVI-I.
With this patch, it is now determined according to the actual
connector type for DVI-D and DVI-I connectors.

Also set the HPD (hotplug detection) flag for DVI-I connectors
to prevent regressing their digital functionality, which has
been already working.

A subsequent commit will also implement polling for DVI-I.

v2:
Only use connector type for DVI to prevent regressions
for other signal types.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 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 20ab9fd1b82a..4a9109818672 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8133,7 +8133,7 @@ static int dm_update_mst_vcpi_slots_for_dsc(struct drm_atomic_state *state,
 	return 0;
 }
 
-static int to_drm_connector_type(enum signal_type st)
+static int to_drm_connector_type(enum signal_type st, uint32_t connector_id)
 {
 	switch (st) {
 	case SIGNAL_TYPE_HDMI_TYPE_A:
@@ -8149,6 +8149,10 @@ static int to_drm_connector_type(enum signal_type st)
 		return DRM_MODE_CONNECTOR_DisplayPort;
 	case SIGNAL_TYPE_DVI_DUAL_LINK:
 	case SIGNAL_TYPE_DVI_SINGLE_LINK:
+		if (connector_id == CONNECTOR_ID_SINGLE_LINK_DVII ||
+			connector_id == CONNECTOR_ID_DUAL_LINK_DVII)
+			return DRM_MODE_CONNECTOR_DVII;
+
 		return DRM_MODE_CONNECTOR_DVID;
 	case SIGNAL_TYPE_VIRTUAL:
 		return DRM_MODE_CONNECTOR_VIRTUAL;
@@ -8538,6 +8542,7 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
 			link->link_enc->features.dp_ycbcr420_supported ? true : false;
 		break;
 	case DRM_MODE_CONNECTOR_DVID:
+	case DRM_MODE_CONNECTOR_DVII:
 		aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
 		break;
 	default:
@@ -8741,7 +8746,7 @@ static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm,
 		goto out_free;
 	}
 
-	connector_type = to_drm_connector_type(link->connector_signal);
+	connector_type = to_drm_connector_type(link->connector_signal, link->link_id.id);
 
 	res = drm_connector_init_with_ddc(
 			dm->ddev,
-- 
2.51.0