[PATCH v4 18/20] drm/msm/dpu: add writeback blocks to the display snapshot

[Abhinav Kumar <quic_abhinavk@quicinc.com>]

Add writeback block information while capturing the display
snapshot.

Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 9a406e1..b18bff8 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -945,6 +945,11 @@ static void dpu_kms_mdp_snapshot(struct msm_disp_state *disp_state, struct msm_k
 		msm_disp_snapshot_add_block(disp_state, cat->mixer[i].len,
 				dpu_kms->mmio + cat->mixer[i].base, "lm_%d", i);
 
+	/* dump WB sub-blocks HW regs info */
+	for (i = 0; i < cat->wb_count; i++)
+		msm_disp_snapshot_add_block(disp_state, cat->wb[i].len,
+				dpu_kms->mmio + cat->wb[i].base, "wb_%d", i);
+
 	msm_disp_snapshot_add_block(disp_state, top->hw.length,
 			dpu_kms->mmio + top->hw.blk_off, "top");
 
-- 
2.7.4