diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2014-03-06 18:09:52 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-23 21:38:17 -0700 |
| commit | 680f38a3d12c7f1130635cd59180481072fc9518 (patch) | |
| tree | 06da8bb2ac5ab3e6ebe2bb7f238013b22bd3cd0c | |
| parent | 63490f40e071a1b03b6ceca4b654a4d5aeff851d (diff) | |
drm/radeon/atom: select the proper number of lanes in transmitter setup
commit d03874c881a049a50e12f285077ab1f9fc2686e1 upstream.
We need to check for DVI vs. HDMI when setting up duallink since
HDMI is single link only. Fixes 4k modes on newer asics.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=75223
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_encoders.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index 4c81e9faa63..1f7f3ce875c 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -1281,7 +1281,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t } if (is_dp) args.v5.ucLaneNum = dp_lane_count; - else if (radeon_encoder->pixel_clock > 165000) + else if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock)) args.v5.ucLaneNum = 8; else args.v5.ucLaneNum = 4; |