drm/msm/dpu: remove pipe_qos_cfg from struct dpu_plane

The pipe_qos_cfg is used only in _dpu_plane_set_qos_ctrl(), so remove it
from the dpu_plane struct and allocate it on stack when necessary.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Link: https://lore.kernel.org/r/20210930140002.308628-3-dmitry.baryshkov@linaro.orgSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c

@@ -105,7 +105,6 @@ struct dpu_plane {
 
 	struct dpu_hw_pipe *pipe_hw;
 	struct dpu_hw_pipe_cfg pipe_cfg;
-	struct dpu_hw_pipe_qos_cfg pipe_qos_cfg;
 	uint32_t color_fill;
 	bool is_error;
 	bool is_rt_pipe;
@@ -422,38 +421,41 @@ static void _dpu_plane_set_qos_ctrl(struct drm_plane *plane,
 	bool enable, u32 flags)
 {
 	struct dpu_plane *pdpu = to_dpu_plane(plane);
+	struct dpu_hw_pipe_qos_cfg pipe_qos_cfg;
+
+	memset(&pipe_qos_cfg, 0, sizeof(pipe_qos_cfg));
 
 	if (flags & DPU_PLANE_QOS_VBLANK_CTRL) {
-		pdpu->pipe_qos_cfg.creq_vblank = pdpu->pipe_sblk->creq_vblank;
-		pdpu->pipe_qos_cfg.danger_vblank =
+		pipe_qos_cfg.creq_vblank = pdpu->pipe_sblk->creq_vblank;
+		pipe_qos_cfg.danger_vblank =
 				pdpu->pipe_sblk->danger_vblank;
-		pdpu->pipe_qos_cfg.vblank_en = enable;
+		pipe_qos_cfg.vblank_en = enable;
 	}
 
 	if (flags & DPU_PLANE_QOS_VBLANK_AMORTIZE) {
 		/* this feature overrules previous VBLANK_CTRL */
-		pdpu->pipe_qos_cfg.vblank_en = false;
-		pdpu->pipe_qos_cfg.creq_vblank = 0; /* clear vblank bits */
+		pipe_qos_cfg.vblank_en = false;
+		pipe_qos_cfg.creq_vblank = 0; /* clear vblank bits */
 	}
 
 	if (flags & DPU_PLANE_QOS_PANIC_CTRL)
-		pdpu->pipe_qos_cfg.danger_safe_en = enable;
+		pipe_qos_cfg.danger_safe_en = enable;
 
 	if (!pdpu->is_rt_pipe) {
-		pdpu->pipe_qos_cfg.vblank_en = false;
-		pdpu->pipe_qos_cfg.danger_safe_en = false;
+		pipe_qos_cfg.vblank_en = false;
+		pipe_qos_cfg.danger_safe_en = false;
 	}
 
 	DPU_DEBUG_PLANE(pdpu, "pnum:%d ds:%d vb:%d pri[0x%x, 0x%x] is_rt:%d\n",
 		pdpu->pipe - SSPP_VIG0,
-		pdpu->pipe_qos_cfg.danger_safe_en,
-		pdpu->pipe_qos_cfg.vblank_en,
-		pdpu->pipe_qos_cfg.creq_vblank,
-		pdpu->pipe_qos_cfg.danger_vblank,
+		pipe_qos_cfg.danger_safe_en,
+		pipe_qos_cfg.vblank_en,
+		pipe_qos_cfg.creq_vblank,
+		pipe_qos_cfg.danger_vblank,
 		pdpu->is_rt_pipe);
 
 	pdpu->pipe_hw->ops.setup_qos_ctrl(pdpu->pipe_hw,
-			&pdpu->pipe_qos_cfg);
+			&pipe_qos_cfg);
 }
 
 /**