[Intel-gfx] [PATCH] drm/i915/skl: Init cdclk in the driver rather than relying on pre-os

[Shobhit Kumar]

Mostly reuse what is programmed by pre-os, but in case there is no
pre-os initialization, init the cdclk with the default value.

Cc: Imre Deak <imre.deak at intel.com>
Signed-off-by: Shobhit Kumar <shobhit.kumar at intel.com>
---
 drivers/gpu/drm/i915/intel_ddi.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 2d3cc82..675c60d 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -2947,10 +2947,8 @@ void intel_ddi_pll_init(struct drm_device *dev)
 
 		cdclk_freq = dev_priv->display.get_display_clock_speed(dev);
 		dev_priv->skl_boot_cdclk = cdclk_freq;
-		if (!(I915_READ(LCPLL1_CTL) & LCPLL_PLL_ENABLE))
-			DRM_ERROR("LCPLL1 is disabled\n");
-		else
-			intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS);
+
+		skl_init_cdclk(dev_priv);
 	} else if (IS_BROXTON(dev)) {
 		broxton_init_cdclk(dev);
 		broxton_ddi_phy_init(dev);
-- 
2.4.3