diff options
| author | Jingwen Zhu <Jingwen.Zhu@amd.com> | 2025-05-08 11:19:49 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-06-03 15:35:40 -0400 |
| commit | 35b74eccf8289e4a458133be9f9795d152b6f11e (patch) | |
| tree | 404da7b2b99ab094f0aa9dd71bcfdb1f967268d5 | |
| parent | deb24e64c8881c462b29e2c69afd9e6669058be5 (diff) | |
drm/amd/display: Add disconnect case on dongle check
[why]
In the case of an external monitor disconnection,
the kernel mode will attempt to post new timing
validation with two path counts (eDP + external
monitor removed to virtual).
[how]
Skip validating color depth and pixel encoding in the
scenario involving a DP to HDMI active converter dongle.
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Jingwen Zhu <Jingwen.Zhu@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/link_validation.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_validation.c b/drivers/gpu/drm/amd/display/dc/link/link_validation.c index 29606fda029d..e2235fd32998 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_validation.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_validation.c @@ -86,6 +86,10 @@ static bool dp_active_dongle_validate_timing( if (!dongle_caps->is_dp_hdmi_ycbcr420_pass_through) return false; break; + case PIXEL_ENCODING_UNDEFINED: + /* These color depths are currently not supported */ + ASSERT(false); + break; default: /* Invalid Pixel Encoding*/ return false; @@ -104,6 +108,10 @@ static bool dp_active_dongle_validate_timing( if (dongle_caps->dp_hdmi_max_bpc < 12) return false; break; + case COLOR_DEPTH_UNDEFINED: + /* These color depths are currently not supported */ + ASSERT(false); + break; case COLOR_DEPTH_141414: case COLOR_DEPTH_161616: default: |