tree c6835b8d93422f1df238b8e5e371665c33788f9b
parent 3861fc607e64aeefa1e480657bd57f269d0e4129
author Ville Syrjälä <ville.syrjala@linux.intel.com> 1462995891 +0300
committer Ville Syrjälä <ville.syrjala@linux.intel.com> 1463164411 +0300

drm/i915: Program BXT_CDCLK_CD2X_PIPE

BXT could change the CD2X divider synchronized with a single pipe.
So assuming the DE PLL frequency doesn't need to be changed, we could
change cdclk without shutting off the pipe (when only a single pipe is
enabled). In the meantime let's configure CDCLK_CTL for non-double
buffered CD2X update, although it shouldn't really matter as long as
the selected pipe is disabled when reprogramming the divider.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1462995892-32416-13-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>