[PATCH v2 01/16] net: dsa: mv88e6xxx: Factor out common initialization code

[Guenter Roeck]

Code used and needed in mv886xxx.c should be initialized there as well,
so factor it out from the individual initialization files.

Reviewed-by: Andrew Lunn <and...@lunn.ch>
Tested-by: Andrew Lunn <and...@lunn.ch>
Signed-off-by: Guenter Roeck <li...@roeck-us.net>
---
 drivers/net/dsa/mv88e6123_61_65.c |  7 +++----
 drivers/net/dsa/mv88e6171.c       |  8 +++-----
 drivers/net/dsa/mv88e6352.c       |  7 ++++---
 drivers/net/dsa/mv88e6xxx.c       | 11 +++++++++++
 drivers/net/dsa/mv88e6xxx.h       |  1 +
 5 files changed, 22 insertions(+), 12 deletions(-)

diff --git a/drivers/net/dsa/mv88e6123_61_65.c 
b/drivers/net/dsa/mv88e6123_61_65.c
index e9c736e1cef3..6ebe57044afc 100644
--- a/drivers/net/dsa/mv88e6123_61_65.c
+++ b/drivers/net/dsa/mv88e6123_61_65.c
@@ -293,13 +293,12 @@ static int mv88e6123_61_65_setup_port(struct dsa_switch 
*ds, int p)
 
 static int mv88e6123_61_65_setup(struct dsa_switch *ds)
 {
-       struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
        int i;
        int ret;
 
-       mutex_init(&ps->smi_mutex);
-       mutex_init(&ps->stats_mutex);
-       mutex_init(&ps->phy_mutex);
+       ret = mv88e6xxx_setup_common(ds);
+       if (ret < 0)
+               return ret;
 
        ret = mv88e6123_61_65_switch_reset(ds);
        if (ret < 0)
diff --git a/drivers/net/dsa/mv88e6171.c b/drivers/net/dsa/mv88e6171.c
index 9808c860a797..2f6662c246fa 100644
--- a/drivers/net/dsa/mv88e6171.c
+++ b/drivers/net/dsa/mv88e6171.c
@@ -292,12 +292,12 @@ static int mv88e6171_setup_port(struct dsa_switch *ds, 
int p)
 
 static int mv88e6171_setup(struct dsa_switch *ds)
 {
-       struct mv88e6xxx_priv_state *ps = (void *)(ds + 1);
        int i;
        int ret;
 
-       mutex_init(&ps->smi_mutex);
-       mutex_init(&ps->stats_mutex);
+       ret = mv88e6xxx_setup_common(ds);
+       if (ret < 0)
+               return ret;
 
        ret = mv88e6171_switch_reset(ds);
        if (ret < 0)
@@ -318,8 +318,6 @@ static int mv88e6171_setup(struct dsa_switch *ds)
                        return ret;
        }
 
-       mutex_init(&ps->phy_mutex);
-
        return 0;
 }
 
diff --git a/drivers/net/dsa/mv88e6352.c b/drivers/net/dsa/mv88e6352.c
index 7bc5998384c6..75cf9e1c5a44 100644
--- a/drivers/net/dsa/mv88e6352.c
+++ b/drivers/net/dsa/mv88e6352.c
@@ -385,9 +385,10 @@ static int mv88e6352_setup(struct dsa_switch *ds)
        int ret;
        int i;
 
-       mutex_init(&ps->smi_mutex);
-       mutex_init(&ps->stats_mutex);
-       mutex_init(&ps->phy_mutex);
+       ret = mv88e6xxx_setup_common(ds);
+       if (ret < 0)
+               return ret;
+
        mutex_init(&ps->eeprom_mutex);
 
        ps->id = REG_READ(REG_PORT(0), 0x03) & 0xfff0;
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index c18ffc98aacc..6496beb74510 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -700,6 +700,17 @@ int mv88e6xxx_set_eee(struct dsa_switch *ds, int port,
        return 0;
 }
 
+int mv88e6xxx_setup_common(struct dsa_switch *ds)
+{
+       struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+
+       mutex_init(&ps->smi_mutex);
+       mutex_init(&ps->stats_mutex);
+       mutex_init(&ps->phy_mutex);
+
+       return 0;
+}
+
 static int __init mv88e6xxx_init(void)
 {
 #if IS_ENABLED(CONFIG_NET_DSA_MV88E6131)
diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h
index 5fd42ced9011..a02d95a9b313 100644
--- a/drivers/net/dsa/mv88e6xxx.h
+++ b/drivers/net/dsa/mv88e6xxx.h
@@ -57,6 +57,7 @@ struct mv88e6xxx_hw_stat {
        int reg;
 };
 
+int mv88e6xxx_setup_common(struct dsa_switch *ds);
 int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg);
 int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg);
 int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
-- 
2.1.0

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