[PATCH] drivers: net: ldpaa_eth: lx2160a: fix bug in checking if a DPMAC is enabled

[Ioana Ciornei]

From: Grigore Popescu <grigore.popescu at nxp.com>

The next DPMAC was always verified if it is enabled.  In case of
DPMAC at 6, the DPMAC at 7 is verified.  As DPMAC at 7 is disabled, DPMAC at 6 will
be considered disabled and not detected by uboot.

Signed-off-by: Grigore Popescu <grigore.popescu at nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei at nxp.com>
---
 drivers/net/ldpaa_eth/lx2160a.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ldpaa_eth/lx2160a.c b/drivers/net/ldpaa_eth/lx2160a.c
index 9432b6eb85c7..1e62c642039e 100644
--- a/drivers/net/ldpaa_eth/lx2160a.c
+++ b/drivers/net/ldpaa_eth/lx2160a.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Copyright 2018 NXP
+ * Copyright 2018, 2020 NXP
  */
 #include <common.h>
 #include <phy.h>
@@ -57,7 +57,7 @@ phy_interface_t wriop_dpmac_enet_if(int dpmac_id, int lane_prtcl)
 {
 	enum srds_prtcl;
 
-	if (is_device_disabled(dpmac_id + 1))
+	if (is_device_disabled(dpmac_id))
 		return PHY_INTERFACE_MODE_NONE;
 
 	if (lane_prtcl >= SGMII1 && lane_prtcl <= SGMII18)
-- 
2.17.1