diff options
| author | Harry Wentland <harry.wentland@amd.com> | 2018-08-02 15:32:01 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-08-03 10:14:10 -0500 |
| commit | 16196776185cb19bb8c2318ebd1dbbefb5350d6a (patch) | |
| tree | 082d3f484f0cbf722f1a6087311f91c38a68e638 /drivers/gpu/drm/amd/display/dc | |
| parent | 01dc285d5cd89b77686d8baef8482c58d7dc3ead (diff) | |
drm/amd/display: Only require EDID read for HDMI and DVI
[Why]
VGA sometimes has trouble retrieving the EDID on very long cables, KVM
switches, or old displays.
[How]
Only require EDID read for HDMI and DVI and exempt other types (DP,
VGA). We currently don't support VGA but if anyone adds support in the
future this might get overlooked.
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Suggested-by: Michel Dänzer <michel@daenzer.net>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 31cebb645fca..89d7c1e99168 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -753,7 +753,8 @@ bool dc_link_detect(struct dc_link *link, enum dc_detect_reason reason) * even if we have no EDID in order to go to * fail-safe mode */ - if (!dc_is_dp_signal(link->connector_signal)) + if (dc_is_hdmi_signal(link->connector_signal) || + dc_is_dvi_signal(link->connector_signal)) return false; default: break; |