]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
drm/i915/chv: Remove DPIO force latency causing interpair skew issue
authorClint Taylor <clinton.a.taylor@intel.com>
Thu, 9 Apr 2015 20:42:06 +0000 (13:42 -0700)
committerJani Nikula <jani.nikula@intel.com>
Fri, 10 Apr 2015 11:30:35 +0000 (14:30 +0300)
commitaf8fcb9c58f1b2f02ddc04ba64710aaa52da00db
tree243d374078c84350b28d4324eff94cd62980046a
parent88f933a8b03474ebcd16935d3620e5c10b557f6f
drm/i915/chv: Remove DPIO force latency causing interpair skew issue

Latest version of the "CHV DPIO programming notes" no longer requires writes
to TX DW 11 to fix a +2UI interpair skew issue. The current code from
April 2014 was actually causing additional skew issues between all
TMDS pairs.

ver2: added same treatment to intel_dp.c based on Ville's testing.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
drivers/gpu/drm/i915/intel_dp.c
drivers/gpu/drm/i915/intel_hdmi.c