drm/i915: Track full cdclk state for the logical and actual cdclk frequencies
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Fri, 20 Jan 2017 18:21:59 +0000 (20:21 +0200)
committerVille Syrjälä <ville.syrjala@linux.intel.com>
Wed, 8 Feb 2017 16:07:10 +0000 (18:07 +0200)
commitbb0f4aab0e7677e91cde443fecc18e71fbb85038
treef3177b4a3d8f5a201d57d79ec684097be2b7f392
parent49cd97a35d9041b53ecf39d447f6a0f8f2de75eb
drm/i915: Track full cdclk state for the logical and actual cdclk frequencies

The current dev_cdclk vs. cdclk vs. atomic_cdclk_freq is quite a mess.
So here I'm introducing the "actual" and "logical" naming for our
cdclk state. "actual" is what we'll bash into the hardware and "logical"
is what everyone should use for state computaion/checking and whatnot.
We'll track both using the intel_cdclk_state as both will need other
differing parameters than just the actual cdclk frequency.

While doing that we can at the same time unify the appearance of the
.modeset_calc_cdclk() implementations a little bit.

v2: Commit dev_priv->cdclk.actual since that already has the
    new state by the time .modeset_commit_cdclk() is called.
v3: s/locical/logical/ and improve the docs a bit

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170120182205.8141-9-ville.syrjala@linux.intel.com
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/intel_cdclk.c
drivers/gpu/drm/i915/intel_display.c
drivers/gpu/drm/i915/intel_dp.c
drivers/gpu/drm/i915/intel_drv.h
drivers/gpu/drm/i915/intel_pm.c