Need to guard some things with CONFIG_DRM_AMD_DC_DCN.
Fixes: 41724ea273cdda ("drm/amd/display: Add DP 2.0 MST DM Support")
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: Lyude Paul <lyude@xxxxxxxxxx>
Cc: Dave Airlie <airlied@xxxxxxxxx>
---
Lyude, can you apply this to topic/amdgpu-dp2.0-mst? or Dave, if it's
already pulled can you apply this to drm-next?
Thanks!
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 4 +++-
2 files changed, 4 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 a02ca525610c..3f36dbb2c663 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -10723,9 +10723,9 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
struct dm_crtc_state *dm_old_crtc_state;
#if defined(CONFIG_DRM_AMD_DC_DCN)
struct dsc_mst_fairness_vars vars[MAX_PIPES];
-#endif
struct drm_dp_mst_topology_state *mst_state;
struct drm_dp_mst_topology_mgr *mgr;
+#endif
trace_amdgpu_dm_atomic_check_begin(state);
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 719cbec4c45e..c200e07d2fb2 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
@@ -219,7 +219,7 @@ bool dm_helpers_dp_mst_write_payload_allocation_table(
struct drm_dp_mst_topology_mgr *mst_mgr;
struct drm_dp_mst_port *mst_port;
bool ret;
- u8 link_encoding_cap;
+ u8 link_encoding_cap = DP_8b_10b_ENCODING;
aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
/* Accessing the connector state is required for vcpi_slots allocation
@@ -239,7 +239,9 @@ bool dm_helpers_dp_mst_write_payload_allocation_table(
mst_port = aconnector->port;
+#if defined(CONFIG_DRM_AMD_DC_DCN)
link_encoding_cap = dc_link_dp_mst_decide_link_encoding_format(aconnector->dc_link);
+#endif
if (enable) {
--
2.31.1
