net: dsa: mv88e6xxx: rename _mv88e6xxx_wait

Now that there is no locked version of the wait routine anymore, rename
the _ prefixed version and make it use the new read API.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/dsa/mv88e6xxx/chip.c

@@ -216,6 +216,28 @@ static int mv88e6xxx_write(struct mv88e6xxx_chip *chip,
 	return 0;
 }
 
+static int mv88e6xxx_wait(struct mv88e6xxx_chip *chip, int addr, int reg,
+			  u16 mask)
+{
+	unsigned long timeout = jiffies + HZ / 10;
+
+	while (time_before(jiffies, timeout)) {
+		u16 val;
+		int err;
+
+		err = mv88e6xxx_read(chip, addr, reg, &val);
+		if (err)
+			return err;
+
+		if (!(val & mask))
+			return 0;
+
+		usleep_range(1000, 2000);
+	}
+
+	return -ETIMEDOUT;
+}
+
 /* Indirect write to single pointer-data register with an Update bit */
 static int mv88e6xxx_update(struct mv88e6xxx_chip *chip, int addr, int reg,
 			    u16 update)
@@ -819,34 +841,15 @@ static void mv88e6xxx_get_regs(struct dsa_switch *ds, int port,
 	mutex_unlock(&chip->reg_lock);
 }
 
-static int _mv88e6xxx_wait(struct mv88e6xxx_chip *chip, int reg, int offset,
-			   u16 mask)
-{
-	unsigned long timeout = jiffies + HZ / 10;
-
-	while (time_before(jiffies, timeout)) {
-		int ret;
-
-		ret = _mv88e6xxx_reg_read(chip, reg, offset);
-		if (ret < 0)
-			return ret;
-		if (!(ret & mask))
-			return 0;
-
-		usleep_range(1000, 2000);
-	}
-	return -ETIMEDOUT;
-}
-
 static int mv88e6xxx_mdio_wait(struct mv88e6xxx_chip *chip)
 {
-	return _mv88e6xxx_wait(chip, REG_GLOBAL2, GLOBAL2_SMI_OP,
+	return mv88e6xxx_wait(chip, REG_GLOBAL2, GLOBAL2_SMI_OP,
 			      GLOBAL2_SMI_OP_BUSY);
 }
 
 static int _mv88e6xxx_atu_wait(struct mv88e6xxx_chip *chip)
 {
-	return _mv88e6xxx_wait(chip, REG_GLOBAL, GLOBAL_ATU_OP,
+	return mv88e6xxx_wait(chip, REG_GLOBAL, GLOBAL_ATU_OP,
 			      GLOBAL_ATU_OP_BUSY);
 }
 
@@ -1227,7 +1230,7 @@ static int _mv88e6xxx_port_pvid_set(struct mv88e6xxx_chip *chip,
 
 static int _mv88e6xxx_vtu_wait(struct mv88e6xxx_chip *chip)
 {
-	return _mv88e6xxx_wait(chip, REG_GLOBAL, GLOBAL_VTU_OP,
+	return mv88e6xxx_wait(chip, REG_GLOBAL, GLOBAL_VTU_OP,
 			      GLOBAL_VTU_OP_BUSY);
 }
 
@@ -2949,7 +2952,7 @@ static int mv88e6xxx_g2_clear_irl(struct mv88e6xxx_chip *chip)
 			break;
 
 		/* Wait for the operation to complete */
-		err = _mv88e6xxx_wait(chip, REG_GLOBAL2, GLOBAL2_IRL_CMD,
+		err = mv88e6xxx_wait(chip, REG_GLOBAL2, GLOBAL2_IRL_CMD,
 				     GLOBAL2_IRL_CMD_BUSY);
 		if (err)
 			break;
@@ -3004,7 +3007,7 @@ static int mv88e6xxx_g2_clear_pot(struct mv88e6xxx_chip *chip)
 
 static int mv88e6xxx_g2_eeprom_wait(struct mv88e6xxx_chip *chip)
 {
-	return _mv88e6xxx_wait(chip, REG_GLOBAL2, GLOBAL2_EEPROM_CMD,
+	return mv88e6xxx_wait(chip, REG_GLOBAL2, GLOBAL2_EEPROM_CMD,
 			      GLOBAL2_EEPROM_CMD_BUSY |
 			      GLOBAL2_EEPROM_CMD_RUNNING);
 }