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drm/i915/dp: Explicitly request 8/10 channel coding 

It's not clear what a sink would do if you wrote zero to this register -
which I guess would mean "I don't support any channel encodings, good
luck" - but let's not find out.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Adam Jackson 2011-07-12 17:38:05 -04:00 committed by Keith Packard
parent 71ba9000e6
commit a2cab1b24a
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/i915/intel_dp.c
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@ -769,6 +769,7 @@ intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
memset(intel_dp->link_configuration, 0, DP_LINK_CONFIGURATION_SIZE);
intel_dp->link_configuration[0] = intel_dp->link_bw;
intel_dp->link_configuration[1] = intel_dp->lane_count;
intel_dp->link_configuration[8] = DP_SET_ANSI_8B10B;
/*
* Check for DPCD version > 1.1 and enhanced framing support