diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2014-03-06 18:09:52 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-03-06 18:09:52 -0500 |
| commit | d03874c881a049a50e12f285077ab1f9fc2686e1 (patch) | |
| tree | 98195e921b4818b6655212ef62595cbec7a7f90b | |
| parent | 13714323f83ffa5a772fe0d8b74e0fa32ee08819 (diff) | |
drm/radeon/atom: select the proper number of lanes in transmitter setup
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>
Cc: stable@vger.kernel.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 2cec2ab02f8..607dc14d195 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -1314,7 +1314,7 @@ 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; |