drm/i915/display: Separate xe and i915 common dpt code into own file

Here created intel_dpt_common.c to hold intel_dpt_configure which is
needed for both xe and i915.

Signed-off-by: Juha-Pekka Heikkila <[e-mail]>
Reviewed-by: Jouni Högander <[e-mail]>
Signed-off-by: Jouni Högander <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/i915/Makefile

···
 	display/intel_dpll.o \
 	display/intel_dpll_mgr.o \
 	display/intel_dpt.o \
+	display/intel_dpt_common.o \
 	display/intel_drrs.o \
 	display/intel_dsb.o \
 	display/intel_dsb_buffer.o \

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

···
 #include "intel_dpll.h"
 #include "intel_dpll_mgr.h"
 #include "intel_dpt.h"
+#include "intel_dpt_common.h"
 #include "intel_drrs.h"
 #include "intel_dsb.h"
 #include "intel_dsi.h"

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

···
 #include "gt/gen8_ppgtt.h"
 
 #include "i915_drv.h"
-#include "i915_reg.h"
-#include "intel_de.h"
 #include "intel_display_types.h"
 #include "intel_dpt.h"
 #include "intel_fb.h"
···
 	i915_vm_put(&dpt->vm);
 }
 
-void intel_dpt_configure(struct intel_crtc *crtc)
-{
-	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
-
-	if (DISPLAY_VER(i915) == 14) {
-		enum pipe pipe = crtc->pipe;
-		enum plane_id plane_id;
-
-		for_each_plane_id_on_crtc(crtc, plane_id) {
-			if (plane_id == PLANE_CURSOR)
-				continue;
-
-			intel_de_rmw(i915, PLANE_CHICKEN(pipe, plane_id),
-				     PLANE_CHICKEN_DISABLE_DPT,
-				     i915->display.params.enable_dpt ? 0 :
-				     PLANE_CHICKEN_DISABLE_DPT);
-		}
-	} else if (DISPLAY_VER(i915) == 13) {
-		intel_de_rmw(i915, CHICKEN_MISC_2,
-			     CHICKEN_MISC_DISABLE_DPT,
-			     i915->display.params.enable_dpt ? 0 :
-			     CHICKEN_MISC_DISABLE_DPT);
-	}
-}

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

···
 
 struct i915_address_space;
 struct i915_vma;
-struct intel_crtc;
 struct intel_framebuffer;
 
 void intel_dpt_destroy(struct i915_address_space *vm);
···
 void intel_dpt_resume(struct drm_i915_private *i915);
 struct i915_address_space *
 intel_dpt_create(struct intel_framebuffer *fb);
-void intel_dpt_configure(struct intel_crtc *crtc);
 
 #endif /* __INTEL_DPT_H__ */

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

···
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "i915_reg.h"
+#include "intel_de.h"
+#include "intel_display_types.h"
+#include "intel_dpt_common.h"
+
+void intel_dpt_configure(struct intel_crtc *crtc)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+
+	if (DISPLAY_VER(i915) == 14) {
+		enum pipe pipe = crtc->pipe;
+		enum plane_id plane_id;
+
+		for_each_plane_id_on_crtc(crtc, plane_id) {
+			if (plane_id == PLANE_CURSOR)
+				continue;
+
+			intel_de_rmw(i915, PLANE_CHICKEN(pipe, plane_id),
+				     PLANE_CHICKEN_DISABLE_DPT,
+				     i915->display.params.enable_dpt ? 0 :
+				     PLANE_CHICKEN_DISABLE_DPT);
+		}
+	} else if (DISPLAY_VER(i915) == 13) {
+		intel_de_rmw(i915, CHICKEN_MISC_2,
+			     CHICKEN_MISC_DISABLE_DPT,
+			     i915->display.params.enable_dpt ? 0 :
+			     CHICKEN_MISC_DISABLE_DPT);
+	}
+}

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

···
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef __INTEL_DPT_COMMON_H__
+#define __INTEL_DPT_COMMON_H__
+
+struct intel_crtc;
+
+void intel_dpt_configure(struct intel_crtc *crtc);
+
+#endif /* __INTEL_DPT_COMMON_H__ */