drm/msm/dpu: Remove num_enc from topology struct in favour of num_dsc

Downstream calls this num_enc yet the DSC patches introduced a new
num_dsc struct member, leaving num_enc effectively unused.

Fixes: 7e9cc175 ("drm/msm/disp/dpu1: Add support for DSC in topology")
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/515688/
Link: https://lore.kernel.org/r/20221221231943.1961117-7-marijn.suijten@somainline.orgSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c

@@ -579,19 +579,18 @@ static struct msm_display_topology dpu_encoder_get_topology(
 			topology.num_dspp = topology.num_lm;
 	}
 
-	topology.num_enc = 0;
 	topology.num_intf = intf_count;
 
 	if (dpu_enc->dsc) {
-		/* In case of Display Stream Compression (DSC), we would use
-		 * 2 encoders, 2 layer mixers and 1 interface
+		/*
+		 * In case of Display Stream Compression (DSC), we would use
+		 * 2 DSC encoders, 2 layer mixers and 1 interface
 		 * this is power optimal and can drive up to (including) 4k
 		 * screens
 		 */
-		topology.num_enc = 2;
 		topology.num_dsc = 2;
-		topology.num_intf = 1;
 		topology.num_lm = 2;
+		topology.num_intf = 1;
 	}
 
 	return topology;

drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c

@@ -548,8 +548,8 @@ static int _dpu_rm_populate_requirements(
 {
 	reqs->topology = req_topology;
 
-	DRM_DEBUG_KMS("num_lm: %d num_enc: %d num_intf: %d\n",
-		      reqs->topology.num_lm, reqs->topology.num_enc,
+	DRM_DEBUG_KMS("num_lm: %d num_dsc: %d num_intf: %d\n",
+		      reqs->topology.num_lm, reqs->topology.num_dsc,
 		      reqs->topology.num_intf);
 
 	return 0;

drivers/gpu/drm/msm/msm_drv.h

@@ -83,14 +83,12 @@ enum msm_event_wait {
 /**
  * struct msm_display_topology - defines a display topology pipeline
  * @num_lm:       number of layer mixers used
- * @num_enc:      number of compression encoder blocks used
  * @num_intf:     number of interfaces the panel is mounted on
  * @num_dspp:     number of dspp blocks used
  * @num_dsc:      number of Display Stream Compression (DSC) blocks used
  */
 struct msm_display_topology {
 	u32 num_lm;
-	u32 num_enc;
 	u32 num_intf;
 	u32 num_dspp;
 	u32 num_dsc;