[PATCH 01/20] drm/amd/display: Determine DRM connector type more accurately
Timur Kristóf
timur.kristof at gmail.com
Wed Jul 23 15:57:54 UTC 2025
Previously, DC determined 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 in DC, meaning it can now distinguish between
DVI-D and DVI-I connectors.
A subsequent commit will enable polling for these connectors.
Signed-off-by: Timur Kristóf <timur.kristof at gmail.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 28 +++++++++++--------
1 file changed, 16 insertions(+), 12 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 096b23ad4845..c347b232ae06 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8038,24 +8038,26 @@ 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(uint32_t connector_id)
{
- switch (st) {
- case SIGNAL_TYPE_HDMI_TYPE_A:
+ switch (connector_id) {
+ case CONNECTOR_ID_HDMI_TYPE_A:
return DRM_MODE_CONNECTOR_HDMIA;
- case SIGNAL_TYPE_EDP:
+ case CONNECTOR_ID_EDP:
return DRM_MODE_CONNECTOR_eDP;
- case SIGNAL_TYPE_LVDS:
+ case CONNECTOR_ID_LVDS:
return DRM_MODE_CONNECTOR_LVDS;
- case SIGNAL_TYPE_RGB:
+ case CONNECTOR_ID_VGA:
return DRM_MODE_CONNECTOR_VGA;
- case SIGNAL_TYPE_DISPLAY_PORT:
- case SIGNAL_TYPE_DISPLAY_PORT_MST:
+ case CONNECTOR_ID_DISPLAY_PORT:
return DRM_MODE_CONNECTOR_DisplayPort;
- case SIGNAL_TYPE_DVI_DUAL_LINK:
- case SIGNAL_TYPE_DVI_SINGLE_LINK:
+ case CONNECTOR_ID_SINGLE_LINK_DVID:
+ case CONNECTOR_ID_DUAL_LINK_DVID:
return DRM_MODE_CONNECTOR_DVID;
- case SIGNAL_TYPE_VIRTUAL:
+ case CONNECTOR_ID_SINGLE_LINK_DVII:
+ case CONNECTOR_ID_DUAL_LINK_DVII:
+ return DRM_MODE_CONNECTOR_DVII;
+ case CONNECTOR_ID_VIRTUAL:
return DRM_MODE_CONNECTOR_VIRTUAL;
default:
@@ -8440,6 +8442,8 @@ 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:
+ case DRM_MODE_CONNECTOR_VGA:
aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
break;
default:
@@ -8631,7 +8635,7 @@ 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->link_id.id);
res = drm_connector_init_with_ddc(
dm->ddev,
--
2.50.1
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