[PATCH v4 08/12] drm/amdgpu: Suspend and resume internal clients with client helpers

[Thomas Zimmermann]

Replace calls to drm_fb_helper_set_suspend_unlocked() with calls
to the client functions drm_client_dev_suspend() and
drm_client_dev_resume(). Any registered in-kernel client will now
receive suspend and resume events.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: "Christian König" <christian.koenig at amd.com>
Cc: Xinhui Pan <Xinhui.Pan at amd.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt at intel.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index fd853dc843e9..9c40d620a658 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -37,8 +37,8 @@
 
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_event.h>
 #include <drm/drm_crtc_helper.h>
-#include <drm/drm_fb_helper.h>
 #include <drm/drm_probe_helper.h>
 #include <drm/amdgpu_drm.h>
 #include <linux/device.h>
@@ -4711,13 +4711,13 @@ int amdgpu_device_prepare(struct drm_device *dev)
  * amdgpu_device_suspend - initiate device suspend
  *
  * @dev: drm dev pointer
- * @fbcon : notify the fbdev of suspend
+ * @notify_clients: notify in-kernel DRM clients
  *
  * Puts the hw in the suspend state (all asics).
  * Returns 0 for success or an error on failure.
  * Called at driver suspend.
  */
-int amdgpu_device_suspend(struct drm_device *dev, bool fbcon)
+int amdgpu_device_suspend(struct drm_device *dev, bool notify_clients)
 {
 	struct amdgpu_device *adev = drm_to_adev(dev);
 	int r = 0;
@@ -4737,8 +4737,8 @@ int amdgpu_device_suspend(struct drm_device *dev, bool fbcon)
 	if (amdgpu_acpi_smart_shift_update(dev, AMDGPU_SS_DEV_D3))
 		DRM_WARN("smart shift update failed\n");
 
-	if (fbcon)
-		drm_fb_helper_set_suspend_unlocked(adev_to_drm(adev)->fb_helper, true);
+	if (notify_clients)
+		drm_client_dev_suspend(adev_to_drm(adev), false);
 
 	cancel_delayed_work_sync(&adev->delayed_init_work);
 
@@ -4773,13 +4773,13 @@ int amdgpu_device_suspend(struct drm_device *dev, bool fbcon)
  * amdgpu_device_resume - initiate device resume
  *
  * @dev: drm dev pointer
- * @fbcon : notify the fbdev of resume
+ * @notify_clients: notify in-kernel DRM clients
  *
  * Bring the hw back to operating state (all asics).
  * Returns 0 for success or an error on failure.
  * Called at driver resume.
  */
-int amdgpu_device_resume(struct drm_device *dev, bool fbcon)
+int amdgpu_device_resume(struct drm_device *dev, bool notify_clients)
 {
 	struct amdgpu_device *adev = drm_to_adev(dev);
 	int r = 0;
@@ -4835,8 +4835,8 @@ int amdgpu_device_resume(struct drm_device *dev, bool fbcon)
 	/* Make sure IB tests flushed */
 	flush_delayed_work(&adev->delayed_init_work);
 
-	if (fbcon)
-		drm_fb_helper_set_suspend_unlocked(adev_to_drm(adev)->fb_helper, false);
+	if (notify_clients)
+		drm_client_dev_resume(adev_to_drm(adev), false);
 
 	amdgpu_ras_resume(adev);
 
@@ -5448,7 +5448,7 @@ int amdgpu_do_asic_reset(struct list_head *device_list_handle,
 				if (r)
 					goto out;
 
-				drm_fb_helper_set_suspend_unlocked(adev_to_drm(tmp_adev)->fb_helper, false);
+				drm_client_dev_resume(adev_to_drm(tmp_adev), false);
 
 				/*
 				 * The GPU enters bad state once faulty pages
@@ -5734,7 +5734,7 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
 		 */
 		amdgpu_unregister_gpu_instance(tmp_adev);
 
-		drm_fb_helper_set_suspend_unlocked(adev_to_drm(tmp_adev)->fb_helper, true);
+		drm_client_dev_suspend(adev_to_drm(tmp_adev), false);
 
 		/* disable ras on ALL IPs */
 		if (!need_emergency_restart &&
-- 
2.46.0