disp: msm: sde: Fix data width calculation when widebus is enabled

Adjust the data width calculation to reduce the rounding off error
when the widebus is enabled.

Change-Id: Ia2fa4536ce519548989e2befcb22fb685f286c9e
Signed-off-by: Kashish Jain <[email protected]>

msm/sde/sde_hw_intf.c

@@ -315,10 +315,11 @@ static void sde_hw_intf_setup_timing_engine(struct sde_hw_intf *ctx,
 	data_width = p->width;
 
 	if (p->compression_en) {
-		data_width = DIV_ROUND_UP(p->dce_bytes_per_line, 3);
-
 		if (p->wide_bus_en)
-			data_width >>= 1;
+			data_width = DIV_ROUND_UP(p->dce_bytes_per_line, 6);
+		else
+			data_width = DIV_ROUND_UP(p->dce_bytes_per_line, 3);
+
 	} else if (!dp_intf && p->wide_bus_en) {
 		data_width = p->width >> 1;
 	} else {