[PATCH 07/13] drm/msm/dpu: drop unused dpu_plane::lock

[Dmitry Baryshkov <dmitry.baryshkov@linaro.org>]

The field dpu_plane::lock was never used for protecting any kind of
data. Drop it now.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index c2aaaded07ed..aba5185e1d66 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -78,8 +78,6 @@ static const uint32_t qcom_compressed_supported_formats[] = {
 struct dpu_plane {
 	struct drm_plane base;
 
-	struct mutex lock;
-
 	enum dpu_sspp pipe;
 
 	uint32_t color_fill;
@@ -1186,8 +1184,6 @@ static void dpu_plane_destroy(struct drm_plane *plane)
 		if (pstate->r_pipe.sspp)
 			_dpu_plane_set_qos_ctrl(plane, &pstate->r_pipe, false);
 
-		mutex_destroy(&pdpu->lock);
-
 		/* this will destroy the states as well */
 		drm_plane_cleanup(plane);
 
@@ -1447,8 +1443,6 @@ struct drm_plane *dpu_plane_init(struct drm_device *dev,
 	/* success! finalize initialization */
 	drm_plane_helper_add(plane, &dpu_plane_helper_funcs);
 
-	mutex_init(&pdpu->lock);
-
 	DPU_DEBUG("%s created for pipe:%u id:%u\n", plane->name,
 					pipe, plane->base.id);
 	return plane;
-- 
2.39.2