[PATCH 07/21] drm/msm/dpu: Support dynamic DSC number

[Jun Nie]

Do not assume DSC number as 2. Because there are 4 DSC in
quad pipe case.

Signed-off-by: Jun Nie <jun....@linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 6bdd9c21ff3ed..05b203be2a9bc 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -553,9 +553,9 @@ bool dpu_encoder_use_dsc_merge(struct drm_encoder *drm_enc)
                if (dpu_enc->phys_encs[i])
                        intf_count++;
 
-       /* See dpu_encoder_get_topology, we only support 2:2:1 topology */
+       /* DSC and mixer are mapped 1:1, so reuse the mixer number */
        if (dpu_enc->dsc)
-               num_dsc = 2;
+               num_dsc = dpu_crtc_get_lm_num(drm_enc->crtc->state);
 
        return (num_dsc > 0) && (num_dsc > intf_count);
 }

-- 
2.34.1