drm/i915: Remove PIPE_CONF_CHECK_I_ALT

And move the comment to the right macro. This was mixed up in

commit cfb23ed
Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date:   Tue Jul 14 12:17:40 2015 +0200

    drm/i915: Allow fuzzy matching in pipe_config_compare, v2

v2: Rebase.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Stone <daniels@collabora.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1459330476-32453-1-git-send-email-daniel.vetter@ffwll.ch

drivers/gpu/drm/i915/intel_display.c

@@ -12569,6 +12569,11 @@ intel_pipe_config_compare(struct drm_device *dev,
 		ret = false; \
 	}
 
+/* This is required for BDW+ where there is only one set of registers for
+ * switching between high and low RR.
+ * This macro can be used whenever a comparison has to be made between one
+ * hw state and multiple sw state variables.
+ */
 #define PIPE_CONF_CHECK_M_N_ALT(name, alt_name) \
 	if (!intel_compare_link_m_n(&current_config->name, \
 				    &pipe_config->name, adjust) && \
@@ -12596,22 +12601,6 @@ intel_pipe_config_compare(struct drm_device *dev,
 		ret = false; \
 	}
 
-/* This is required for BDW+ where there is only one set of registers for
- * switching between high and low RR.
- * This macro can be used whenever a comparison has to be made between one
- * hw state and multiple sw state variables.
- */
-#define PIPE_CONF_CHECK_I_ALT(name, alt_name) \
-	if ((current_config->name != pipe_config->name) && \
-		(current_config->alt_name != pipe_config->name)) { \
-			INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \
-				  "(expected %i or %i, found %i)\n", \
-				  current_config->name, \
-				  current_config->alt_name, \
-				  pipe_config->name); \
-			ret = false; \
-	}
-
 #define PIPE_CONF_CHECK_FLAGS(name, mask)	\
 	if ((current_config->name ^ pipe_config->name) & (mask)) { \
 		INTEL_ERR_OR_DBG_KMS("mismatch in " #name "(" #mask ") " \
@@ -12736,7 +12725,6 @@ intel_pipe_config_compare(struct drm_device *dev,
 #undef PIPE_CONF_CHECK_X
 #undef PIPE_CONF_CHECK_I
 #undef PIPE_CONF_CHECK_P
-#undef PIPE_CONF_CHECK_I_ALT
 #undef PIPE_CONF_CHECK_FLAGS
 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
 #undef PIPE_CONF_QUIRK