Store the switch API version in struct gswip_priv (in host endian) to
prepare supporting newer features such as 4096 VLANs and per-port
configurable learning.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
v3: use __force for version field endian exception (__le16 __force) to
    fix sparse warning.
v2: no changes

 drivers/net/dsa/lantiq_gswip.c | 3 +++
 drivers/net/dsa/lantiq_gswip.h | 1 +
 2 files changed, 4 insertions(+)

diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c
index f8a43c351649..8999c3f2d290 100644
--- a/drivers/net/dsa/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq_gswip.c
@@ -28,6 +28,7 @@
 #include "lantiq_gswip.h"
 #include "lantiq_pce.h"
 
+#include <linux/byteorder/generic.h>
 #include <linux/delay.h>
 #include <linux/etherdevice.h>
 #include <linux/firmware.h>
@@ -1936,6 +1937,8 @@ static int gswip_probe(struct platform_device *pdev)
 					     "gphy fw probe failed\n");
 	}
 
+	priv->version = le16_to_cpu((__le16 __force)version);
+
 	/* bring up the mdio bus */
 	err = gswip_mdio(priv);
 	if (err) {
diff --git a/drivers/net/dsa/lantiq_gswip.h b/drivers/net/dsa/lantiq_gswip.h
index 0b7b6db4eab9..077d1928149b 100644
--- a/drivers/net/dsa/lantiq_gswip.h
+++ b/drivers/net/dsa/lantiq_gswip.h
@@ -258,6 +258,7 @@ struct gswip_priv {
 	struct gswip_gphy_fw *gphy_fw;
 	u32 port_vlan_filter;
 	struct mutex pce_table_lock;
+	u16 version;
 };
 
 #endif /* __LANTIQ_GSWIP_H */
-- 
2.50.1