drm/msm/dpu: add writeback blocks to the display snapshot

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>
Patchwork: https://patchwork.freedesktop.org/patch/483524/
Link: https://lore.kernel.org/r/1650984096-9964-18-git-send-email-quic_abhinavk@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 2e7b673a8cca589808754a50cb99f772936e0613..ecde6fc8c0d653b291cc0386420cb04f9b09bc3f 100644 (file)
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -947,6 +947,11 @@ 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");