[PATCH RESEND 3/5] drm/msm/dpu: drop global_state_lock

[Dmitry Baryshkov]

Since the commit b962a12050a3 ("drm/atomic: integrate modeset lock with
private objects") the DRM framework no longer requires the external
lock for private objects. Drop the lock, letting the DRM to manage
private object locking.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 8 --------
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 1 -
 2 files changed, 9 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 73f70e67cfef..26ac00f8f486 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -328,11 +328,6 @@ struct dpu_global_state *dpu_kms_get_global_state(struct drm_atomic_state *s)
 	struct msm_drm_private *priv = s->dev->dev_private;
 	struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms);
 	struct drm_private_state *priv_state;
-	int ret;
-
-	ret = drm_modeset_lock(&dpu_kms->global_state_lock, s->acquire_ctx);
-	if (ret)
-		return ERR_PTR(ret);
 
 	priv_state = drm_atomic_get_private_obj_state(s,
 						&dpu_kms->global_state);
@@ -373,8 +368,6 @@ static int dpu_kms_global_obj_init(struct dpu_kms *dpu_kms)
 {
 	struct dpu_global_state *state;
 
-	drm_modeset_lock_init(&dpu_kms->global_state_lock);
-
 	state = kzalloc(sizeof(*state), GFP_KERNEL);
 	if (!state)
 		return -ENOMEM;
@@ -388,7 +381,6 @@ static int dpu_kms_global_obj_init(struct dpu_kms *dpu_kms)
 static void dpu_kms_global_obj_fini(struct dpu_kms *dpu_kms)
 {
 	drm_atomic_private_obj_fini(&dpu_kms->global_state);
-	drm_modeset_lock_fini(&dpu_kms->global_state_lock);
 }
 
 static int dpu_kms_parse_data_bus_icc_path(struct dpu_kms *dpu_kms)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
index b6f53ca6e962..ed549f0f7c65 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
@@ -84,7 +84,6 @@ struct dpu_kms {
 	 * Global private object state, Do not access directly, use
 	 * dpu_kms_global_get_state()
 	 */
-	struct drm_modeset_lock global_state_lock;
 	struct drm_private_obj global_state;
 
 	struct dpu_rm rm;
-- 
2.39.2