disp: msm: sde: fix cwb, dp and wb tear down sequence

CWB, DP and WB displays tear down sequence must reset
3d_merge, ctl, pingpong_binding, etc. MDP HW
blocks. This change fixes the tear down
sequence register programming. It also moves flush
sw reset before encoder_disable call. That allows
CWB tear down to update the flush configuration
on primary ctl path.

Change-Id: I21c521b39456af4144cf836c65d46a25c985f51d
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>

msm/sde/sde_hw_intf.c

@@ -368,13 +368,13 @@ static void sde_hw_intf_bind_pingpong_blk(
 	mux_cfg = SDE_REG_READ(c, INTF_MUX);
 	mux_cfg &= ~0xf;
 
-	if (enable)
+	if (enable) {
 		mux_cfg |= (pp - PINGPONG_0) & 0x7;
-	else
-		mux_cfg |= 0xf;
-
-	if (intf->cfg.split_link_en)
-		mux_cfg = 0x60000;
+		if (intf->cfg.split_link_en)
+			mux_cfg = 0x60000;
+	} else {
+		mux_cfg = 0xf000f;
+	}
 
 	SDE_REG_WRITE(c, INTF_MUX, mux_cfg);
 }