1 files changed, 18 insertions, 9 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..0be195f9149c 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -119,6 +119,7 @@ static u64 _dpu_plane_calc_bw(const struct dpu_mdss_cfg *catalog,
 	struct dpu_sw_pipe_cfg *pipe_cfg)
 {
 	int src_width, src_height, dst_height, fps;
+	u64 plane_pixel_rate, plane_bit_rate;
 	u64 plane_prefill_bw;
 	u64 plane_bw;
 	u32 hw_latency_lines;
@@ -136,13 +137,12 @@ static u64 _dpu_plane_calc_bw(const struct dpu_mdss_cfg *catalog,
 	scale_factor = src_height > dst_height ?
 		mult_frac(src_height, 1, dst_height) : 1;
 
-	plane_bw =
-		src_width * mode->vtotal * fps * fmt->bpp *
-		scale_factor;
+	plane_pixel_rate = src_width * mode->vtotal * fps;
+	plane_bit_rate = plane_pixel_rate * fmt->bpp;
 
-	plane_prefill_bw =
-		src_width * hw_latency_lines * fps * fmt->bpp *
-		scale_factor * mode->vtotal;
+	plane_bw = plane_bit_rate * scale_factor;
+
+	plane_prefill_bw = plane_bw * hw_latency_lines;
 
 	if ((vbp+vpw) > hw_latency_lines)
 		do_div(plane_prefill_bw, (vbp+vpw));
@@ -733,9 +733,11 @@ static int dpu_plane_check_inline_rotation(struct dpu_plane *pdpu,
 static int dpu_plane_atomic_check_pipe(struct dpu_plane *pdpu,
 		struct dpu_sw_pipe *pipe,
 		struct dpu_sw_pipe_cfg *pipe_cfg,
-		const struct dpu_format *fmt)
+		const struct dpu_format *fmt,
+		const struct drm_display_mode *mode)
 {
 	uint32_t min_src_size;
+	struct dpu_kms *kms = _dpu_plane_get_kms(&pdpu->base);
 
 	min_src_size = DPU_FORMAT_IS_YUV(fmt) ? 2 : 1;
 
@@ -774,6 +776,12 @@ static int dpu_plane_atomic_check_pipe(struct dpu_plane *pdpu,
 		return -EINVAL;
 	}
 
+	/* max clk check */
+	if (_dpu_plane_calc_clk(mode, pipe_cfg) > kms->perf.max_core_clk_rate) {
+		DPU_DEBUG_PLANE(pdpu, "plane exceeds max mdp core clk limits\n");
+		return -E2BIG;
+	}
+
 	return 0;
 }
 
@@ -899,12 +907,13 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
 		r_pipe_cfg->dst_rect.x1 = pipe_cfg->dst_rect.x2;
 	}
 
-	ret = dpu_plane_atomic_check_pipe(pdpu, pipe, pipe_cfg, fmt);
+	ret = dpu_plane_atomic_check_pipe(pdpu, pipe, pipe_cfg, fmt, &crtc_state->adjusted_mode);
 	if (ret)
 		return ret;
 
 	if (r_pipe->sspp) {
-		ret = dpu_plane_atomic_check_pipe(pdpu, r_pipe, r_pipe_cfg, fmt);
+		ret = dpu_plane_atomic_check_pipe(pdpu, r_pipe, r_pipe_cfg, fmt,
+						  &crtc_state->adjusted_mode);
 		if (ret)
 			return ret;
 	}