[PATCH] drm/amd/display: drop vblank_lock from struct amdgpu_display_manager

[Hamza Mahfooz <hamza.mahfooz@amd.com>]

As of commit 09a5df6c444c ("drm/amd/display: Fix multi-display support
for idle opt workqueue"), vblank_lock is no longer being used. So, don't
init it in amdgpu_dm_init() and remove it from struct
amdgpu_display_manager.

Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 -
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 7 -------
 2 files changed, 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index eb4ce7216104..11afb4b24fd9 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1394,7 +1394,6 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
 
 	mutex_init(&adev->dm.dc_lock);
 	mutex_init(&adev->dm.audio_lock);
-	spin_lock_init(&adev->dm.vblank_lock);
 
 	if(amdgpu_dm_irq_init(adev)) {
 		DRM_ERROR("amdgpu: failed to initialize DM IRQ support.\n");
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
index b5ce15c43bcc..b618b2586e7b 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -365,13 +365,6 @@ struct amdgpu_display_manager {
 	 */
 	struct mutex audio_lock;
 
-	/**
-	 * @vblank_lock:
-	 *
-	 * Guards access to deferred vblank work state.
-	 */
-	spinlock_t vblank_lock;
-
 	/**
 	 * @audio_component:
 	 *
-- 
2.38.0