On 12/15/2021 8:09 AM, Dmitry Baryshkov wrote:
Implement CRTC's atomic_print_state() callback, printing DPU-specific
CRTC state (LM, CTL and DSPP ids).

Signed-off-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhin...@quicinc.com>
---
  drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 15 +++++++++++++++
  1 file changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 59b1bcfbe8c0..df128a680697 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -924,6 +924,20 @@ static struct drm_crtc_state 
*dpu_crtc_duplicate_state(struct drm_crtc *crtc)
        return &cstate->base;
  }
+static void dpu_crtc_atomic_print_state(struct drm_printer *p,
+                                       const struct drm_crtc_state *state)
+{
+       struct dpu_crtc_state *cstate = to_dpu_crtc_state(state);
+       int i;
+
+       for (i = 0; i < cstate->num_mixers; i++) {
+               drm_printf(p, "\tlm[%d]=%d\n", i, cstate->mixers[i].hw_lm->idx 
- LM_0);
+               drm_printf(p, "\tctl[%d]=%d\n", i, 
cstate->mixers[i].lm_ctl->idx - CTL_0);
+               if (cstate->mixers[i].hw_dspp)
+                       drm_printf(p, "\tdspp[%d]=%d\n", i, 
cstate->mixers[i].hw_dspp->idx - DSPP_0);
+       }
+}
+
  static void dpu_crtc_disable(struct drm_crtc *crtc,
                             struct drm_atomic_state *state)
  {
@@ -1454,6 +1468,7 @@ static const struct drm_crtc_funcs dpu_crtc_funcs = {
        .reset = dpu_crtc_reset,
        .atomic_duplicate_state = dpu_crtc_duplicate_state,
        .atomic_destroy_state = dpu_crtc_destroy_state,
+       .atomic_print_state = dpu_crtc_atomic_print_state,
        .late_register = dpu_crtc_late_register,
        .verify_crc_source = dpu_crtc_verify_crc_source,
        .set_crc_source = dpu_crtc_set_crc_source,

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