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Date: Sun, 28 Feb 2016 17:41:30 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Florian Fainelli <f.fainelli@...il.com>,
Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
netdev <netdev@...r.kernel.org>
Cc: Andrew Lunn <andrew@...n.ch>
Subject: [PATCH RFC v2 22/32] net: dsa: Better integrate the drivers with mdio device
Don't unpack the mdiodev into its bus and address value. Rather keep
it is a core data structure for addressing. This does however mean
when the driver is instantiated the old way, we have to create a dummy
mdiodev structure.
Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
drivers/net/dsa/mv88e6060.c | 27 ++++++++++--------
drivers/net/dsa/mv88e6060.h | 3 +-
drivers/net/dsa/mv88e6123.c | 7 +++--
drivers/net/dsa/mv88e6131.c | 7 +++--
drivers/net/dsa/mv88e6171.c | 7 +++--
drivers/net/dsa/mv88e6352.c | 7 +++--
drivers/net/dsa/mv88e6xxx.c | 68 +++++++++++++++++++++++----------------------
drivers/net/dsa/mv88e6xxx.h | 9 ++----
8 files changed, 74 insertions(+), 61 deletions(-)
diff --git a/drivers/net/dsa/mv88e6060.c b/drivers/net/dsa/mv88e6060.c
index 723273c8ff32..27834cac422f 100644
--- a/drivers/net/dsa/mv88e6060.c
+++ b/drivers/net/dsa/mv88e6060.c
@@ -24,7 +24,8 @@ static int reg_read(struct dsa_switch *ds, int addr, int reg)
{
struct mv88e6060_priv *priv = ds_to_priv(ds);
- return mdiobus_read_nested(priv->bus, priv->sw_addr + addr, reg);
+ return mdiobus_read_nested(priv->mdiodev->bus,
+ priv->mdiodev->addr + addr, reg);
}
#define REG_READ(addr, reg) \
@@ -42,7 +43,8 @@ static int reg_write(struct dsa_switch *ds, int addr, int reg, u16 val)
{
struct mv88e6060_priv *priv = ds_to_priv(ds);
- return mdiobus_write_nested(priv->bus, priv->sw_addr + addr, reg, val);
+ return mdiobus_write_nested(priv->mdiodev->bus,
+ priv->mdiodev->addr + addr, reg, val);
}
#define REG_WRITE(addr, reg, val) \
@@ -179,6 +181,7 @@ static int mv88e6060_setup(struct dsa_switch *ds, struct device *dev)
{
int i;
int ret;
+ struct mdio_device *mdiodev;
struct mv88e6060_priv *priv = ds_to_priv(ds);
if (!priv) {
@@ -187,13 +190,18 @@ static int mv88e6060_setup(struct dsa_switch *ds, struct device *dev)
if (!priv)
return -ENOMEM;
+ mdiodev = devm_kzalloc(dev, sizeof(*mdiodev), GFP_KERNEL);
+ if (!mdiodev)
+ return -ENOMEM;
+
ds->priv = priv;
- priv->bus = dsa_host_dev_to_mii_bus(ds->master_dev);
- if (!priv->bus)
+ mdiodev->bus = dsa_host_dev_to_mii_bus(ds->master_dev);
+ if (!mdiodev->bus)
return -ENODEV;
- priv->sw_addr = ds->pd->sw_addr;
+ mdiodev->addr = ds->pd->sw_addr;
+ priv->mdiodev = mdiodev;
}
ret = mv88e6060_switch_reset(ds);
@@ -280,14 +288,11 @@ static int mv88e6060_bind(struct device *dev,
priv = (struct mv88e6060_priv *)(ds + 1);
ds->priv = priv;
- priv->bus = mdiodev->bus;
- priv->sw_addr = mdiodev->addr;
-
- get_device(&priv->bus->dev);
+ priv->mdiodev = mdiodev;
ds->drv = &mv88e6060_switch_driver;
- name = mv88e6060_name(priv->bus, priv->sw_addr);
+ name = mv88e6060_name(priv->mdiodev->bus, priv->mdiodev->addr);
if (!name) {
dev_err(dev, "Failed to find switch");
return -ENODEV;
@@ -303,10 +308,8 @@ static void mv88e6060_unbind(struct device *dev, struct device *master,
void *data)
{
struct dsa_switch *ds = dev_get_drvdata(dev);
- struct mv88e6060_priv *priv = ds_to_priv(ds);
dsa_switch_unregister(ds);
- put_device(&priv->bus->dev);
}
static const struct component_ops mv88e6060_component_ops = {
diff --git a/drivers/net/dsa/mv88e6060.h b/drivers/net/dsa/mv88e6060.h
index 10249bd16292..bf0b8d5bde11 100644
--- a/drivers/net/dsa/mv88e6060.h
+++ b/drivers/net/dsa/mv88e6060.h
@@ -115,8 +115,7 @@ struct mv88e6060_priv {
* single address which contains two registers used for
* indirect access to more registers.
*/
- struct mii_bus *bus;
- int sw_addr;
+ struct mdio_device *mdiodev;
};
#endif
diff --git a/drivers/net/dsa/mv88e6123.c b/drivers/net/dsa/mv88e6123.c
index 4c488f9f2a34..76e88e037311 100644
--- a/drivers/net/dsa/mv88e6123.c
+++ b/drivers/net/dsa/mv88e6123.c
@@ -34,9 +34,12 @@ static const struct mv88e6xxx_switch_id mv88e6123_table[] = {
static char *mv88e6123_drv_probe(struct device *host_dev, int sw_addr)
{
- struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev);
+ struct mdio_device mdiodev;
- return mv88e6xxx_lookup_name(bus, sw_addr, mv88e6123_table,
+ mdiodev.bus = dsa_host_dev_to_mii_bus(host_dev);
+ mdiodev.addr = sw_addr;
+
+ return mv88e6xxx_lookup_name(&mdiodev, mv88e6123_table,
ARRAY_SIZE(mv88e6123_table));
}
diff --git a/drivers/net/dsa/mv88e6131.c b/drivers/net/dsa/mv88e6131.c
index e5a4e2b11322..6696ce638bbc 100644
--- a/drivers/net/dsa/mv88e6131.c
+++ b/drivers/net/dsa/mv88e6131.c
@@ -30,9 +30,12 @@ static const struct mv88e6xxx_switch_id mv88e6131_table[] = {
static char *mv88e6131_drv_probe(struct device *host_dev, int sw_addr)
{
- struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev);
+ struct mdio_device mdiodev;
- return mv88e6xxx_lookup_name(bus, sw_addr, mv88e6131_table,
+ mdiodev.bus = dsa_host_dev_to_mii_bus(host_dev);
+ mdiodev.addr = sw_addr;
+
+ return mv88e6xxx_lookup_name(&mdiodev, mv88e6131_table,
ARRAY_SIZE(mv88e6131_table));
}
diff --git a/drivers/net/dsa/mv88e6171.c b/drivers/net/dsa/mv88e6171.c
index 249c2c075a2d..de0ba67e34b8 100644
--- a/drivers/net/dsa/mv88e6171.c
+++ b/drivers/net/dsa/mv88e6171.c
@@ -29,9 +29,12 @@ static const struct mv88e6xxx_switch_id mv88e6171_table[] = {
static char *mv88e6171_drv_probe(struct device *host_dev, int sw_addr)
{
- struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev);
+ struct mdio_device mdiodev;
- return mv88e6xxx_lookup_name(bus, sw_addr, mv88e6171_table,
+ mdiodev.bus = dsa_host_dev_to_mii_bus(host_dev);
+ mdiodev.addr = sw_addr;
+
+ return mv88e6xxx_lookup_name(&mdiodev, mv88e6171_table,
ARRAY_SIZE(mv88e6171_table));
}
diff --git a/drivers/net/dsa/mv88e6352.c b/drivers/net/dsa/mv88e6352.c
index 0d245f76e557..796558614964 100644
--- a/drivers/net/dsa/mv88e6352.c
+++ b/drivers/net/dsa/mv88e6352.c
@@ -40,9 +40,12 @@ static const struct mv88e6xxx_switch_id mv88e6352_table[] = {
static char *mv88e6352_drv_probe(struct device *host_dev, int sw_addr)
{
- struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev);
+ struct mdio_device mdiodev;
- return mv88e6xxx_lookup_name(bus, sw_addr, mv88e6352_table,
+ mdiodev.bus = dsa_host_dev_to_mii_bus(host_dev);
+ mdiodev.addr = sw_addr;
+
+ return mv88e6xxx_lookup_name(&mdiodev, mv88e6352_table,
ARRAY_SIZE(mv88e6352_table));
}
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index 3dca92b8d592..4f1da145b814 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -46,13 +46,13 @@ static void assert_smi_lock(struct dsa_switch *ds)
* an indirect addressing mechanism needs to be used to access its
* registers.
*/
-static int mv88e6xxx_reg_wait_ready(struct mii_bus *bus, int sw_addr)
+static int mv88e6xxx_reg_wait_ready(struct mdio_device *mdiodev)
{
int ret;
int i;
for (i = 0; i < 16; i++) {
- ret = mdiobus_read_nested(bus, sw_addr, SMI_CMD);
+ ret = mdiodev_read_nested(mdiodev, SMI_CMD);
if (ret < 0)
return ret;
@@ -63,32 +63,31 @@ static int mv88e6xxx_reg_wait_ready(struct mii_bus *bus, int sw_addr)
return -ETIMEDOUT;
}
-static int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr,
- int reg)
+static int __mv88e6xxx_reg_read(struct mdio_device *mdiodev, int addr, int reg)
{
int ret;
- if (sw_addr == 0)
- return mdiobus_read_nested(bus, addr, reg);
+ if (mdiodev->addr == 0)
+ return mdiobus_read_nested(mdiodev->bus, addr, reg);
/* Wait for the bus to become free. */
- ret = mv88e6xxx_reg_wait_ready(bus, sw_addr);
+ ret = mv88e6xxx_reg_wait_ready(mdiodev);
if (ret < 0)
return ret;
/* Transmit the read command. */
- ret = mdiobus_write_nested(bus, sw_addr, SMI_CMD,
+ ret = mdiodev_write_nested(mdiodev, SMI_CMD,
SMI_CMD_OP_22_READ | (addr << 5) | reg);
if (ret < 0)
return ret;
/* Wait for the read command to complete. */
- ret = mv88e6xxx_reg_wait_ready(bus, sw_addr);
+ ret = mv88e6xxx_reg_wait_ready(mdiodev);
if (ret < 0)
return ret;
/* Read the data. */
- ret = mdiobus_read_nested(bus, sw_addr, SMI_DATA);
+ ret = mdiodev_read_nested(mdiodev, SMI_DATA);
if (ret < 0)
return ret;
@@ -102,7 +101,7 @@ static int _mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg)
assert_smi_lock(ds);
- ret = __mv88e6xxx_reg_read(ps->bus, ps->sw_addr, addr, reg);
+ ret = __mv88e6xxx_reg_read(ps->mdiodev, addr, reg);
if (ret < 0)
return ret;
@@ -125,32 +124,32 @@ int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg)
}
EXPORT_SYMBOL_GPL(mv88e6xxx_reg_read);
-static int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
+static int __mv88e6xxx_reg_write(struct mdio_device *mdiodev, int addr,
int reg, u16 val)
{
int ret;
- if (sw_addr == 0)
- return mdiobus_write_nested(bus, addr, reg, val);
+ if (mdiodev->addr == 0)
+ return mdiobus_write_nested(mdiodev->bus, addr, reg, val);
/* Wait for the bus to become free. */
- ret = mv88e6xxx_reg_wait_ready(bus, sw_addr);
+ ret = mv88e6xxx_reg_wait_ready(mdiodev);
if (ret < 0)
return ret;
/* Transmit the data to write. */
- ret = mdiobus_write_nested(bus, sw_addr, SMI_DATA, val);
+ ret = mdiodev_write_nested(mdiodev, SMI_DATA, val);
if (ret < 0)
return ret;
/* Transmit the write command. */
- ret = mdiobus_write_nested(bus, sw_addr, SMI_CMD,
+ ret = mdiodev_write_nested(mdiodev, SMI_CMD,
SMI_CMD_OP_22_WRITE | (addr << 5) | reg);
if (ret < 0)
return ret;
/* Wait for the write command to complete. */
- ret = mv88e6xxx_reg_wait_ready(bus, sw_addr);
+ ret = mv88e6xxx_reg_wait_ready(mdiodev);
if (ret < 0)
return ret;
@@ -167,7 +166,7 @@ static int _mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg,
dev_dbg(ds->master_dev, "-> addr: 0x%.2x reg: 0x%.2x val: 0x%.4x\n",
addr, reg, val);
- return __mv88e6xxx_reg_write(ps->bus, ps->sw_addr, addr, reg, val);
+ return __mv88e6xxx_reg_write(ps->mdiodev, addr, reg, val);
}
int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val)
@@ -2230,20 +2229,26 @@ EXPORT_SYMBOL_GPL(mv88e6xxx_setup_ports);
int mv88e6xxx_setup_common(struct dsa_switch *ds, struct device *dev)
{
struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+ struct mdio_device *mdiodev;
if (!ps) {
+ /* Old method when dsa create the switch */
ps = devm_kzalloc(dev, sizeof(*ps), GFP_KERNEL);
if (!ps)
return -ENOMEM;
+ mdiodev = devm_kzalloc(dev, sizeof(*mdiodev), GFP_KERNEL);
+ if (!mdiodev)
+ return -ENOMEM;
+
ds->priv = ps;
ps->ds = ds;
-
- ps->bus = dsa_host_dev_to_mii_bus(ds->master_dev);
- if (!ps->bus)
+ mdiodev->bus = dsa_host_dev_to_mii_bus(ds->master_dev);
+ if (!mdiodev->bus)
return -ENODEV;
- ps->sw_addr = ds->pd->sw_addr;
+ mdiodev->addr = ds->pd->sw_addr;
+ ps->mdiodev = mdiodev;
}
mutex_init(&ps->smi_mutex);
@@ -2671,16 +2676,16 @@ int mv88e6xxx_get_temp_alarm(struct dsa_switch *ds, bool *alarm)
EXPORT_SYMBOL_GPL(mv88e6xxx_get_temp_alarm);
#endif /* CONFIG_NET_DSA_HWMON */
-char *mv88e6xxx_lookup_name(struct mii_bus *bus, int sw_addr,
+char *mv88e6xxx_lookup_name(struct mdio_device *mdiodev,
const struct mv88e6xxx_switch_id *table,
unsigned int num)
{
int i, ret;
- if (!bus)
+ if (!mdiodev->bus)
return NULL;
- ret = __mv88e6xxx_reg_read(bus, sw_addr, REG_PORT(0), PORT_SWITCH_ID);
+ ret = __mv88e6xxx_reg_read(mdiodev, REG_PORT(0), PORT_SWITCH_ID);
if (ret < 0)
return NULL;
@@ -2692,7 +2697,7 @@ char *mv88e6xxx_lookup_name(struct mii_bus *bus, int sw_addr,
/* Look up only the product number */
for (i = 0; i < num; ++i) {
if (table[i].id == (ret & PORT_SWITCH_ID_PROD_NUM_MASK)) {
- dev_warn(&bus->dev,
+ dev_warn(&mdiodev->bus->dev,
"unknown revision %d, using base switch 0x%x\n",
ret & PORT_SWITCH_ID_REV_MASK,
ret & PORT_SWITCH_ID_PROD_NUM_MASK);
@@ -2723,14 +2728,11 @@ int mv88e6xxx_bind(struct device *dev,
ps = (struct mv88e6xxx_priv_state *)(ds + 1);
ds->priv = ps;
ps->ds = ds;
- ps->bus = mdiodev->bus;
- ps->sw_addr = mdiodev->addr;
-
- get_device(&ps->bus->dev);
+ ps->mdiodev = mdiodev;
ds->drv = ops;
- name = mv88e6xxx_lookup_name(ps->bus, ps->sw_addr, table, table_size);
+ name = mv88e6xxx_lookup_name(mdiodev, table, table_size);
if (!name) {
dev_err(dev, "Failed to find switch");
return -ENODEV;
@@ -2751,7 +2753,7 @@ void mv88e6xxx_unbind(struct device *dev, struct device *master, void *data)
dsa_switch_unregister(ds);
devm_kfree(dev, ds);
- put_device(&ps->bus->dev);
+ put_device(&ps->mdiodev->bus->dev);
}
EXPORT_SYMBOL_GPL(mv88e6xxx_unbind);
diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h
index ce05964da85f..27e7faf619e9 100644
--- a/drivers/net/dsa/mv88e6xxx.h
+++ b/drivers/net/dsa/mv88e6xxx.h
@@ -389,11 +389,8 @@ struct mv88e6xxx_priv_state {
*/
struct mutex smi_mutex;
- /* The MII bus and the address on the bus that is used to
- * communication with the switch
- */
- struct mii_bus *bus;
- int sw_addr;
+ /* Which mdio device is this switch? */
+ struct mdio_device *mdiodev;
#ifdef CONFIG_NET_DSA_MV88E6XXX_NEED_PPU
/* Handles automatic disabling and re-enabling of the PHY
@@ -444,7 +441,7 @@ struct mv88e6xxx_hw_stat {
};
int mv88e6xxx_switch_reset(struct dsa_switch *ds, bool ppu_active);
-char *mv88e6xxx_lookup_name(struct mii_bus *bus, int sw_addr,
+char *mv88e6xxx_lookup_name(struct mdio_device *mdiodev,
const struct mv88e6xxx_switch_id *table,
unsigned int num);
int mv88e6xxx_bind(struct device *dev, struct dsa_switch_tree *dst,
--
2.7.0
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