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: I5358d60634070bdb26059056db884ad4161c073e
Signed-off-by: Amine Najahi <anajahi@codeaurora.org>

msm/sde/sde_hw_dsc_1_2.c

@@ -141,7 +141,11 @@ static void sde_hw_dsc_config(struct sde_hw_dsc *hw_dsc,
 		data |= BIT(0);
 
 	if (mode & DSC_MODE_MULTIPLEX) {
-		slice_count_per_enc = dsc->config.slice_count >> 1;
+		if (dsc->dsc_4hsmerge_en)
+			slice_count_per_enc = dsc->config.slice_count >> 2;
+		else
+			slice_count_per_enc = dsc->config.slice_count >> 1;
+
 		data |= BIT(1);
 	}
 
@@ -253,6 +257,11 @@ static void sde_hw_dsc_config(struct sde_hw_dsc *hw_dsc,
 		data |= BIT(13);
 	if (!(mode & DSC_MODE_VIDEO))
 		data |= BIT(17);
+	if (dsc->dsc_4hsmerge_en) {
+		data |= dsc->dsc_4hsmerge_padding << 18;
+		data |= dsc->dsc_4hsmerge_alignment << 22;
+		data |= BIT(16);
+	}
 
 	SDE_REG_WRITE(dsc_c, DSC_CFG + idx, data);
 }