drm/i915/dpt: convert intel_dpt.[ch] interfaces to struct intel_display

Going forward, struct intel_display is the main display device data
pointer. Convert the intel_dpt.[ch] interfaces to struct intel_display,
though the file being very i915 specific, it's hard to convert the
implementation.

Reviewed-by: Suraj Kandpal <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/df2[e-mail]
Signed-off-by: Jani Nikula <[e-mail]>

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

···
 
 /**
  * intel_dpt_resume - restore the memory mapping for all DPT FBs during system resume
- * @i915: device instance
+ * @display: display device instance
  *
  * Restore the memory mapping during system resume for all framebuffers which
  * are mapped to HW via a GGTT->DPT page table. The content of these page
···
  * This function must be called after the mappings in GGTT have been restored calling
  * i915_ggtt_resume().
  */
-void intel_dpt_resume(struct drm_i915_private *i915)
+void intel_dpt_resume(struct intel_display *display)
 {
 	struct drm_framebuffer *drm_fb;
 
-	if (!HAS_DISPLAY(i915))
+	if (!HAS_DISPLAY(display))
 		return;
 
-	mutex_lock(&i915->drm.mode_config.fb_lock);
-	drm_for_each_fb(drm_fb, &i915->drm) {
+	mutex_lock(&display->drm->mode_config.fb_lock);
+	drm_for_each_fb(drm_fb, display->drm) {
 		struct intel_framebuffer *fb = to_intel_framebuffer(drm_fb);
 
 		if (fb->dpt_vm)
 			i915_ggtt_resume_vm(fb->dpt_vm, true);
 	}
-	mutex_unlock(&i915->drm.mode_config.fb_lock);
+	mutex_unlock(&display->drm->mode_config.fb_lock);
 }
 
 /**
  * intel_dpt_suspend - suspend the memory mapping for all DPT FBs during system suspend
- * @i915: device instance
+ * @display: display device instance
  *
  * Suspend the memory mapping during system suspend for all framebuffers which
  * are mapped to HW via a GGTT->DPT page table.
···
  * This function must be called before the mappings in GGTT are suspended calling
  * i915_ggtt_suspend().
  */
-void intel_dpt_suspend(struct drm_i915_private *i915)
+void intel_dpt_suspend(struct intel_display *display)
 {
 	struct drm_framebuffer *drm_fb;
 
-	if (!HAS_DISPLAY(i915))
+	if (!HAS_DISPLAY(display))
 		return;
 
-	mutex_lock(&i915->drm.mode_config.fb_lock);
+	mutex_lock(&display->drm->mode_config.fb_lock);
 
-	drm_for_each_fb(drm_fb, &i915->drm) {
+	drm_for_each_fb(drm_fb, display->drm) {
 		struct intel_framebuffer *fb = to_intel_framebuffer(drm_fb);
 
 		if (fb->dpt_vm)
 			i915_ggtt_suspend_vm(fb->dpt_vm, true);
 	}
 
-	mutex_unlock(&i915->drm.mode_config.fb_lock);
+	mutex_unlock(&display->drm->mode_config.fb_lock);
 }
 
 struct i915_address_space *

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

···
 
 #include <linux/types.h>
 
-struct drm_i915_private;
-
 struct i915_address_space;
 struct i915_vma;
+struct intel_display;
 struct intel_framebuffer;
 
 void intel_dpt_destroy(struct i915_address_space *vm);
 struct i915_vma *intel_dpt_pin_to_ggtt(struct i915_address_space *vm,
 				       unsigned int alignment);
 void intel_dpt_unpin_from_ggtt(struct i915_address_space *vm);
-void intel_dpt_suspend(struct drm_i915_private *i915);
-void intel_dpt_resume(struct drm_i915_private *i915);
+void intel_dpt_suspend(struct intel_display *display);
+void intel_dpt_resume(struct intel_display *display);
 struct i915_address_space *
 intel_dpt_create(struct intel_framebuffer *fb);
 u64 intel_dpt_offset(struct i915_vma *dpt_vma);

drivers/gpu/drm/i915/i915_driver.c

···
 	intel_encoder_suspend_all(&dev_priv->display);
 
 	/* Must be called before GGTT is suspended. */
-	intel_dpt_suspend(dev_priv);
+	intel_dpt_suspend(display);
 	i915_ggtt_suspend(to_gt(dev_priv)->ggtt);
 
 	i9xx_display_sr_save(display);
···
 			setup_private_pat(gt);
 
 	/* Must be called after GGTT is resumed. */
-	intel_dpt_resume(dev_priv);
+	intel_dpt_resume(display);
 
 	intel_dmc_resume(display);