drm/i915: move quirks under display sub-struct

Move display quirk related members under drm_i915_private display
sub-struct.

Prefer adding anonymous sub-structs even for single members that aren't
our own structs.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c4a1a5657023efe24a362c67daf79260f179f0eb.1661779055.git.jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_display_core.h

@@ -365,6 +365,10 @@ struct intel_display {
 		struct mutex mutex;
 	} pps;
 
+	struct {
+		unsigned long mask;
+	} quirks;
+
 	struct {
 		enum {
 			I915_SAGV_UNKNOWN = 0,

drivers/gpu/drm/i915/display/intel_quirks.c

@@ -11,7 +11,7 @@
 
 static void intel_set_quirk(struct drm_i915_private *i915, enum intel_quirk_id quirk)
 {
-	i915->quirks |= BIT(quirk);
+	i915->display.quirks.mask |= BIT(quirk);
 }
 
 /*
@@ -224,5 +224,5 @@ void intel_init_quirks(struct drm_i915_private *i915)
 
 bool intel_has_quirk(struct drm_i915_private *i915, enum intel_quirk_id quirk)
 {
-	return i915->quirks & BIT(quirk);
+	return i915->display.quirks.mask & BIT(quirk);
 }

drivers/gpu/drm/i915/i915_drv.h

@@ -291,7 +291,6 @@ struct drm_i915_private {
 	unsigned short pch_id;
 
 	unsigned long gem_quirks;
-	unsigned long quirks;
 
 	struct drm_atomic_state *modeset_restore_state;
 	struct drm_modeset_acquire_ctx reset_ctx;