Message ID | 20190604200933.29417-4-ville.syrjala@linux.intel.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | [1/5] drm/i915: Do not touch the PCH SSC reference if a PLL is using it | expand |
diff --git a/drivers/gpu/drm/i915/intel_display_power.c b/drivers/gpu/drm/i915/intel_display_power.c index 278a7edc94f5..bb9ef1cea5db 100644 --- a/drivers/gpu/drm/i915/intel_display_power.c +++ b/drivers/gpu/drm/i915/intel_display_power.c @@ -3665,6 +3665,9 @@ static void hsw_assert_cdclk(struct drm_i915_private *dev_priv) if (val & LCPLL_PLL_DISABLE) DRM_ERROR("LCPLL is disabled\n"); + + if ((val & LCPLL_REF_MASK) != LCPLL_REF_NON_SSC) + DRM_ERROR("LCPLL not using non-SSC reference\n"); } static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv)