drm/i915/color: hide struct intel_color_funcs

The struct is only needed in intel_color.c, move it there.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/68cf44fab55c047253c3ed87f8afcf0a86fa157a.1643896905.git.jani.nikula@intel.com

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

@@ -28,6 +28,25 @@
 #include "intel_dpll.h"
 #include "vlv_dsi_pll.h"
 
+struct intel_color_funcs {
+	int (*color_check)(struct intel_crtc_state *crtc_state);
+	/*
+	 * Program double buffered color management registers during
+	 * vblank evasion. The registers should then latch during the
+	 * next vblank start, alongside any other double buffered registers
+	 * involved with the same commit.
+	 */
+	void (*color_commit)(const struct intel_crtc_state *crtc_state);
+	/*
+	 * Load LUTs (and other single buffered color management
+	 * registers). Will (hopefully) be called during the vblank
+	 * following the latching of any double buffered registers
+	 * involved with the same commit.
+	 */
+	void (*load_luts)(const struct intel_crtc_state *crtc_state);
+	void (*read_luts)(struct intel_crtc_state *crtc_state);
+};
+
 #define CTM_COEFF_SIGN	(1ULL << 63)
 
 #define CTM_COEFF_1_0	(1ULL << 32)

drivers/gpu/drm/i915/i915_drv.h

@@ -115,6 +115,7 @@ struct intel_cdclk_config;
 struct intel_cdclk_funcs;
 struct intel_cdclk_state;
 struct intel_cdclk_vals;
+struct intel_color_funcs;
 struct intel_connector;
 struct intel_crtc;
 struct intel_dp;
@@ -320,25 +321,6 @@ struct drm_i915_wm_disp_funcs {
 	int (*compute_global_watermarks)(struct intel_atomic_state *state);
 };
 
-struct intel_color_funcs {
-	int (*color_check)(struct intel_crtc_state *crtc_state);
-	/*
-	 * Program double buffered color management registers during
-	 * vblank evasion. The registers should then latch during the
-	 * next vblank start, alongside any other double buffered registers
-	 * involved with the same commit.
-	 */
-	void (*color_commit)(const struct intel_crtc_state *crtc_state);
-	/*
-	 * Load LUTs (and other single buffered color management
-	 * registers). Will (hopefully) be called during the vblank
-	 * following the latching of any double buffered registers
-	 * involved with the same commit.
-	 */
-	void (*load_luts)(const struct intel_crtc_state *crtc_state);
-	void (*read_luts)(struct intel_crtc_state *crtc_state);
-};
-
 struct intel_hotplug_funcs {
 	void (*hpd_irq_setup)(struct drm_i915_private *dev_priv);
 };