[PATCH net-next 05/11] net: dsa: mv88e6xxx: add port PVID accessors

[Vivien Didelot]

Add port functions to access the ports default VID.

Signed-off-by: Vivien Didelot <vivien.dide...@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 51 ++++------------------------------------
 drivers/net/dsa/mv88e6xxx/port.c | 38 ++++++++++++++++++++++++++++++
 drivers/net/dsa/mv88e6xxx/port.h |  3 +++
 3 files changed, 45 insertions(+), 47 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 20f59f1..9c0a028 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1288,49 +1288,6 @@ static void mv88e6xxx_port_fast_age(struct dsa_switch 
*ds, int port)
                netdev_err(ds->ports[port].netdev, "failed to flush ATU\n");
 }
 
-static int _mv88e6xxx_port_pvid(struct mv88e6xxx_chip *chip, int port,
-                               u16 *new, u16 *old)
-{
-       struct dsa_switch *ds = chip->ds;
-       u16 pvid, reg;
-       int err;
-
-       err = mv88e6xxx_port_read(chip, port, PORT_DEFAULT_VLAN, &reg);
-       if (err)
-               return err;
-
-       pvid = reg & PORT_DEFAULT_VLAN_MASK;
-
-       if (new) {
-               reg &= ~PORT_DEFAULT_VLAN_MASK;
-               reg |= *new & PORT_DEFAULT_VLAN_MASK;
-
-               err = mv88e6xxx_port_write(chip, port, PORT_DEFAULT_VLAN, reg);
-               if (err)
-                       return err;
-
-               netdev_dbg(ds->ports[port].netdev,
-                          "DefaultVID %d (was %d)\n", *new, pvid);
-       }
-
-       if (old)
-               *old = pvid;
-
-       return 0;
-}
-
-static int _mv88e6xxx_port_pvid_get(struct mv88e6xxx_chip *chip,
-                                   int port, u16 *pvid)
-{
-       return _mv88e6xxx_port_pvid(chip, port, NULL, pvid);
-}
-
-static int _mv88e6xxx_port_pvid_set(struct mv88e6xxx_chip *chip,
-                                   int port, u16 pvid)
-{
-       return _mv88e6xxx_port_pvid(chip, port, &pvid, NULL);
-}
-
 static int _mv88e6xxx_vtu_wait(struct mv88e6xxx_chip *chip)
 {
        return mv88e6xxx_g1_wait(chip, GLOBAL_VTU_OP, GLOBAL_VTU_OP_BUSY);
@@ -1510,7 +1467,7 @@ static int mv88e6xxx_port_vlan_dump(struct dsa_switch 
*ds, int port,
 
        mutex_lock(&chip->reg_lock);
 
-       err = _mv88e6xxx_port_pvid_get(chip, port, &pvid);
+       err = mv88e6xxx_port_get_pvid(chip, port, &pvid);
        if (err)
                goto unlock;
 
@@ -1958,7 +1915,7 @@ static void mv88e6xxx_port_vlan_add(struct dsa_switch 
*ds, int port,
                                   "failed to add VLAN %d%c\n",
                                   vid, untagged ? 'u' : 't');
 
-       if (pvid && _mv88e6xxx_port_pvid_set(chip, port, vlan->vid_end))
+       if (pvid && mv88e6xxx_port_set_pvid(chip, port, vlan->vid_end))
                netdev_err(ds->ports[port].netdev, "failed to set PVID %d\n",
                           vlan->vid_end);
 
@@ -2013,7 +1970,7 @@ static int mv88e6xxx_port_vlan_del(struct dsa_switch *ds, 
int port,
 
        mutex_lock(&chip->reg_lock);
 
-       err = _mv88e6xxx_port_pvid_get(chip, port, &pvid);
+       err = mv88e6xxx_port_get_pvid(chip, port, &pvid);
        if (err)
                goto unlock;
 
@@ -2023,7 +1980,7 @@ static int mv88e6xxx_port_vlan_del(struct dsa_switch *ds, 
int port,
                        goto unlock;
 
                if (vid == pvid) {
-                       err = _mv88e6xxx_port_pvid_set(chip, port, 0);
+                       err = mv88e6xxx_port_set_pvid(chip, port, 0);
                        if (err)
                                goto unlock;
                }
diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c
index a7da812..104fe2d 100644
--- a/drivers/net/dsa/mv88e6xxx/port.c
+++ b/drivers/net/dsa/mv88e6xxx/port.c
@@ -152,3 +152,41 @@ int mv88e6xxx_port_set_fid(struct mv88e6xxx_chip *chip, 
int port, u16 fid)
 
        return 0;
 }
+
+/* Offset 0x07: Default Port VLAN ID & Priority */
+
+int mv88e6xxx_port_get_pvid(struct mv88e6xxx_chip *chip, int port, u16 *pvid)
+{
+       u16 reg;
+       int err;
+
+       err = mv88e6xxx_port_read(chip, port, PORT_DEFAULT_VLAN, &reg);
+       if (err)
+               return err;
+
+       *pvid = reg & PORT_DEFAULT_VLAN_MASK;
+
+       return 0;
+}
+
+int mv88e6xxx_port_set_pvid(struct mv88e6xxx_chip *chip, int port, u16 pvid)
+{
+       u16 reg;
+       int err;
+
+       err = mv88e6xxx_port_read(chip, port, PORT_DEFAULT_VLAN, &reg);
+       if (err)
+               return err;
+
+       reg &= ~PORT_DEFAULT_VLAN_MASK;
+       reg |= pvid & PORT_DEFAULT_VLAN_MASK;
+
+       err = mv88e6xxx_port_write(chip, port, PORT_DEFAULT_VLAN, reg);
+       if (err)
+               return err;
+
+       netdev_dbg(chip->ds->ports[port].netdev, "DefaultVID set to %u\n",
+                  pvid);
+
+       return 0;
+}
diff --git a/drivers/net/dsa/mv88e6xxx/port.h b/drivers/net/dsa/mv88e6xxx/port.h
index 0df29b9..4489d9e 100644
--- a/drivers/net/dsa/mv88e6xxx/port.h
+++ b/drivers/net/dsa/mv88e6xxx/port.h
@@ -28,4 +28,7 @@ int mv88e6xxx_port_set_vlan_map(struct mv88e6xxx_chip *chip, 
int port, u16 map);
 int mv88e6xxx_port_get_fid(struct mv88e6xxx_chip *chip, int port, u16 *fid);
 int mv88e6xxx_port_set_fid(struct mv88e6xxx_chip *chip, int port, u16 fid);
 
+int mv88e6xxx_port_get_pvid(struct mv88e6xxx_chip *chip, int port, u16 *pvid);
+int mv88e6xxx_port_set_pvid(struct mv88e6xxx_chip *chip, int port, u16 pvid);
+
 #endif /* _MV88E6XXX_PORT_H */
-- 
2.10.2