[PATCH v4 07/13] drm/msm/dpu: drop unused dpu_plane::lock

[Dmitry Baryshkov]

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

Reviewed-by: Jessica Zhang <quic_jessz...@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.barysh...@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 3eef5e025e12..20908f3d8f81 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;
@@ -1227,8 +1225,6 @@ 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);
 
@@ -1488,8 +1484,6 @@ 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