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_display.c b/drivers/gpu/drm/i915/intel_display.c
index aaa1c70..2f389d33 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5874,7 +5874,7 @@
 			dev_priv->max_cdclk_freq = 675000;
 	} else if (IS_CHERRYVIEW(dev_priv)) {
 		dev_priv->max_cdclk_freq = 320000;
-	} else if (IS_VALLEYVIEW(dev)) {
+	} else if (IS_VALLEYVIEW(dev_priv)) {
 		dev_priv->max_cdclk_freq = 400000;
 	} else {
 		/* otherwise assume cdclk is fixed */
@@ -6838,7 +6838,7 @@
 	if (!intel_crtc_has_type(intel_crtc->config, INTEL_OUTPUT_DSI)) {
 		if (IS_CHERRYVIEW(dev_priv))
 			chv_disable_pll(dev_priv, pipe);
-		else if (IS_VALLEYVIEW(dev))
+		else if (IS_VALLEYVIEW(dev_priv))
 			vlv_disable_pll(dev_priv, pipe);
 		else
 			i9xx_disable_pll(intel_crtc);
@@ -8904,7 +8904,7 @@
 
 	if (IS_CHERRYVIEW(dev_priv))
 		chv_crtc_clock_get(crtc, pipe_config);
-	else if (IS_VALLEYVIEW(dev))
+	else if (IS_VALLEYVIEW(dev_priv))
 		vlv_crtc_clock_get(crtc, pipe_config);
 	else
 		i9xx_crtc_clock_get(crtc, pipe_config);