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| author | Alex Deucher <alexander.deucher@amd.com> | 2014-03-06 18:09:52 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-23 21:37:06 -0700 |
| commit | 7dab50632efb9ed42ee352c3588a3e107dff66bb (patch) | |
| tree | cf7714a92bf1a47bc9327b4f760d5f710b45e67c | |
| parent | bfe635e52ede4c72819099b0fce72e28eec6e6c6 (diff) | |
| download | kernel-common-7dab50632efb9ed42ee352c3588a3e107dff66bb.tar.gz kernel-common-7dab50632efb9ed42ee352c3588a3e107dff66bb.tar.bz2 kernel-common-7dab50632efb9ed42ee352c3588a3e107dff66bb.zip | |
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 6f4627fe24a1..072229dca464 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -1048,7 +1048,7 @@ 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; |