drm/i915: Assorted INTEL_INFO(dev) cleanups

A bunch of source files with just a few instances of the
incorrect INTEL_INFO use.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.c b/drivers/gpu/drm/i915/intel_dpll_mgr.c
index 21853a1..58a756f 100644
--- a/drivers/gpu/drm/i915/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/intel_dpll_mgr.c
@@ -188,13 +188,12 @@
 
 void intel_disable_shared_dpll(struct intel_crtc *crtc)
 {
-	struct drm_device *dev = crtc->base.dev;
-	struct drm_i915_private *dev_priv = to_i915(dev);
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
 	struct intel_shared_dpll *pll = crtc->config->shared_dpll;
 	unsigned crtc_mask = 1 << drm_crtc_index(&crtc->base);
 
 	/* PCH only available on ILK+ */
-	if (INTEL_INFO(dev)->gen < 5)
+	if (INTEL_GEN(dev_priv) < 5)
 		return;
 
 	if (pll == NULL)