drm/i915: Make IS_VALLEYVIEW only take dev_priv

Saves 944 bytes of .rodata strings and 128 bytes of .text.

v2: Add parantheses around dev_priv. (Ville Syrjala)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: David Weinehall <david.weinehall@linux.intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Jani Nikula <jani.nikula@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index d456786..d92c3ed 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -253,7 +253,7 @@
 
 	if (HAS_PCH_LPT(dev_priv))
 		max_clock = 180000;
-	else if (IS_VALLEYVIEW(dev))
+	else if (IS_VALLEYVIEW(dev_priv))
 		/*
 		 * 270 MHz due to current DPLL limits,
 		 * DAC limit supposedly 355 MHz.
@@ -423,7 +423,7 @@
 	if (HAS_PCH_SPLIT(dev_priv))
 		return intel_ironlake_crt_detect_hotplug(connector);
 
-	if (IS_VALLEYVIEW(dev))
+	if (IS_VALLEYVIEW(dev_priv))
 		return valleyview_crt_detect_hotplug(connector);
 
 	/*
@@ -850,7 +850,7 @@
 
 	if (HAS_PCH_SPLIT(dev_priv))
 		adpa_reg = PCH_ADPA;
-	else if (IS_VALLEYVIEW(dev))
+	else if (IS_VALLEYVIEW(dev_priv))
 		adpa_reg = VLV_ADPA;
 	else
 		adpa_reg = ADPA;