drm/i915: Leave DPLL ref clocks on

We enable the DPLL refclock already when bringing up the cmnlane power
well, so also leave it on when otherwise disabling the DPLL.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2014-06-28 02:03:59 +03:00 committed by Daniel Vetter
parent d49a340d6e
commit d17ec4ced6

View File

@ -1684,7 +1684,7 @@ static void chv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
assert_pipe_disabled(dev_priv, pipe);
/* Set PLL en = 0 */
val = DPLL_SSC_REF_CLOCK_CHV;
val = DPLL_SSC_REF_CLOCK_CHV | DPLL_REFA_CLK_ENABLE_VLV;
if (pipe != PIPE_A)
val |= DPLL_INTEGRATED_CRI_CLK_VLV;
I915_WRITE(DPLL(pipe), val);