drm/i915: Make IS_CHERRYVIEW only take dev_priv

Saves 864 bytes of .rodata strings and ~100 of .text.

v2: Add parantheses around dev_priv. (Ville Syrjala)
v3: Rebase.

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_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index c7d9cdd..c8243dc 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -881,7 +881,7 @@
 
 	if (HAS_PCH_CPT(dev_priv))
 		hdmi_val |= SDVO_PIPE_SEL_CPT(crtc->pipe);
-	else if (IS_CHERRYVIEW(dev))
+	else if (IS_CHERRYVIEW(dev_priv))
 		hdmi_val |= SDVO_PIPE_SEL_CHV(crtc->pipe);
 	else
 		hdmi_val |= SDVO_PIPE_SEL(crtc->pipe);
@@ -913,7 +913,7 @@
 
 	if (HAS_PCH_CPT(dev_priv))
 		*pipe = PORT_TO_PIPE_CPT(tmp);
-	else if (IS_CHERRYVIEW(dev))
+	else if (IS_CHERRYVIEW(dev_priv))
 		*pipe = SDVO_PORT_TO_PIPE_CHV(tmp);
 	else
 		*pipe = PORT_TO_PIPE(tmp);
@@ -1885,7 +1885,7 @@
 		BUG();
 	}
 
-	if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) {
+	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
 		intel_hdmi->write_infoframe = vlv_write_infoframe;
 		intel_hdmi->set_infoframes = vlv_set_infoframes;
 		intel_hdmi->infoframe_enabled = vlv_infoframe_enabled;
@@ -1959,7 +1959,7 @@
 	}
 	intel_encoder->get_hw_state = intel_hdmi_get_hw_state;
 	intel_encoder->get_config = intel_hdmi_get_config;
-	if (IS_CHERRYVIEW(dev)) {
+	if (IS_CHERRYVIEW(dev_priv)) {
 		intel_encoder->pre_pll_enable = chv_hdmi_pre_pll_enable;
 		intel_encoder->pre_enable = chv_hdmi_pre_enable;
 		intel_encoder->enable = vlv_enable_hdmi;
@@ -1982,7 +1982,7 @@
 
 	intel_encoder->type = INTEL_OUTPUT_HDMI;
 	intel_encoder->port = port;
-	if (IS_CHERRYVIEW(dev)) {
+	if (IS_CHERRYVIEW(dev_priv)) {
 		if (port == PORT_D)
 			intel_encoder->crtc_mask = 1 << 2;
 		else