drm/amd/display: Add Log for SST DSC Determination Policy

[Why & How]
To facilitate DSC debugging purpose

Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 9bca8226881b58727474481eb412e0f6f8dfb004..f5cc28b316e24564f7370133ec5a40627b8fb3c0 100644 (file)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5752,8 +5752,10 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
                                                  0,
                                                  link_bandwidth_kbps,
                                                  &stream->timing,
-                                                 &stream->timing.dsc_cfg))
+                                                 &stream->timing.dsc_cfg)) {
                                stream->timing.flags.DSC = 1;
+                               DRM_DEBUG_DRIVER("%s: [%s] DSC is selected from SST RX\n", __func__, drm_connector->name);
+                       }
                        /* Overwrite the stream flag if DSC is enabled through debugfs */
                        if (aconnector->dsc_settings.dsc_force_enable == DSC_CLK_FORCE_ENABLE)
                                stream->timing.flags.DSC = 1;