From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
Date: Tue, 5 Dec 2017 19:24:55 +0100
Subject: drm/amdgpu: Use drm_fb_helper_lastclose() and _poll_changed()
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Git-commit: ab77e02ce98ab8dfb556f2cc0078c6a0bf80ecef
Patch-mainline: v4.16-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

This driver can use drm_fb_helper_lastclose() in its .lastclose function.
It can also use drm_fb_helper_output_poll_changed() as its
.output_poll_changed callback.
Remove the unused driver implementations.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_display.c |    9 ++-------
 drivers/gpu/drm/amd/amdgpu/amdgpu_display.h |    1 -
 drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c      |   27 ---------------------------
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c     |    4 +---
 drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h    |    4 ----
 5 files changed, 3 insertions(+), 42 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
@@ -34,6 +34,7 @@
 #include <linux/pm_runtime.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_edid.h>
+#include <drm/drm_fb_helper.h>
 
 static void amdgpu_flip_callback(struct dma_fence *f, struct dma_fence_cb *cb)
 {
@@ -556,15 +557,9 @@ amdgpu_user_framebuffer_create(struct dr
 	return &amdgpu_fb->base;
 }
 
-void amdgpu_output_poll_changed(struct drm_device *dev)
-{
-	struct amdgpu_device *adev = dev->dev_private;
-	amdgpu_fb_output_poll_changed(adev);
-}
-
 const struct drm_mode_config_funcs amdgpu_mode_funcs = {
 	.fb_create = amdgpu_user_framebuffer_create,
-	.output_poll_changed = amdgpu_output_poll_changed
+	.output_poll_changed = drm_fb_helper_output_poll_changed,
 };
 
 static const struct drm_prop_enum_list amdgpu_underscan_enum_list[] =
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.h
@@ -27,6 +27,5 @@ struct drm_framebuffer *
 amdgpu_user_framebuffer_create(struct drm_device *dev,
 			       struct drm_file *file_priv,
 			       const struct drm_mode_fb_cmd2 *mode_cmd);
-void amdgpu_output_poll_changed(struct drm_device *dev);
 
 #endif
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
@@ -283,12 +283,6 @@ out:
 	return ret;
 }
 
-void amdgpu_fb_output_poll_changed(struct amdgpu_device *adev)
-{
-	if (adev->mode_info.rfbdev)
-		drm_fb_helper_hotplug_event(&adev->mode_info.rfbdev->helper);
-}
-
 static int amdgpu_fbdev_destroy(struct drm_device *dev, struct amdgpu_fbdev *rfbdev)
 {
 	struct amdgpu_framebuffer *rfb = &rfbdev->rfb;
@@ -393,24 +387,3 @@ bool amdgpu_fbdev_robj_is_fb(struct amdg
 		return true;
 	return false;
 }
-
-void amdgpu_fbdev_restore_mode(struct amdgpu_device *adev)
-{
-	struct amdgpu_fbdev *afbdev;
-	struct drm_fb_helper *fb_helper;
-	int ret;
-
-	if (!adev)
-		return;
-
-	afbdev = adev->mode_info.rfbdev;
-
-	if (!afbdev)
-		return;
-
-	fb_helper = &afbdev->helper;
-
-	ret = drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper);
-	if (ret)
-		DRM_DEBUG("failed to restore crtc mode\n");
-}
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -788,9 +788,7 @@ static int amdgpu_info_ioctl(struct drm_
  */
 void amdgpu_driver_lastclose_kms(struct drm_device *dev)
 {
-	struct amdgpu_device *adev = dev->dev_private;
-
-	amdgpu_fbdev_restore_mode(adev);
+	drm_fb_helper_lastclose(dev);
 	vga_switcheroo_process_delayed_switch();
 }
 
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
@@ -658,10 +658,6 @@ void amdgpu_fbdev_fini(struct amdgpu_dev
 void amdgpu_fbdev_set_suspend(struct amdgpu_device *adev, int state);
 int amdgpu_fbdev_total_size(struct amdgpu_device *adev);
 bool amdgpu_fbdev_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj);
-void amdgpu_fbdev_restore_mode(struct amdgpu_device *adev);
-
-void amdgpu_fb_output_poll_changed(struct amdgpu_device *adev);
-
 
 int amdgpu_align_pitch(struct amdgpu_device *adev, int width, int bpp, bool tiled);