SKL_DSSM 1533 drivers/gpu/drm/i915/display/intel_cdclk.c if (I915_READ(SKL_DSSM) & CNL_DSSM_CDCLK_PLL_REFCLK_24MHz) SKL_DSSM 1887 drivers/gpu/drm/i915/display/intel_cdclk.c val = I915_READ(SKL_DSSM);