disp: msm: sde: adjust DSC encoders to support all 4LM topologies

Add support for all 4LM topologies in new DCE encoder framework.
This change also aligns with the new way of checking topology
information.

Change-Id: I20785c96569fd07cbd8016d244a7e4c929bfa071
Signed-off-by: Amine Najahi <anajahi@codeaurora.org>

msm/sde/sde_rm.h

@@ -20,6 +20,12 @@
 		x == SDE_RM_TOPOLOGY_QUADPIPE_DSCMERGE ||\
 		x == SDE_RM_TOPOLOGY_QUADPIPE_DSC4HSMERGE)
 
+#define TOPOLOGY_DUALPIPE_MERGE_MODE(x) \
+	(x == SDE_RM_TOPOLOGY_DUALPIPE_DSCMERGE || \
+		x == SDE_RM_TOPOLOGY_DUALPIPE_3DMERGE || \
+		x == SDE_RM_TOPOLOGY_DUALPIPE_3DMERGE_VDC || \
+		x == SDE_RM_TOPOLOGY_DUALPIPE_3DMERGE_DSC)
+
 /**
  * enum sde_rm_topology_name - HW resource use case in use by connector
  * @SDE_RM_TOPOLOGY_NONE:                 No topology in use currently
@@ -343,6 +349,26 @@ static inline int sde_rm_topology_get_num_lm(struct sde_rm *rm,
 	return rm->topology_tbl[topology].num_lm;
 }
 
+/**
+ * sde_rm_topology_is_dual_pipe - check if the topology used
+ *	is a dual-pipe mode one
+ * @rm: SDE Resource Manager handle
+ * @state: drm state of the crtc
+ * @return: true if attached connector is in dual-pipe mode
+ */
+bool sde_rm_topology_is_dual_pipe(struct sde_rm *rm,
+		struct drm_crtc_state *state);
+
+/**
+ * sde_rm_topology_is_3dmux_dsc - check if the topology used
+ *	is a 3dmerge dsc mode one
+ * @rm: SDE Resource Manager handle
+ * @state: drm state of the crtc
+ * @return: true if attached connector is in 3DMERGE DSC mode
+ */
+bool sde_rm_topology_is_3dmux_dsc(struct sde_rm *rm,
+		struct drm_crtc_state *state);
+
 /**
  * sde_rm_topology_is_quad_pipe - check if the topology used
  *	is a quad-pipe mode one