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net: asix: remove code duplicates in asix_mdio_read/write and asix_mdio_read/write_nopm

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This functions are mostly same except of one hard coded "in_pm" variable.
So, rework them to reduce maintenance overhead.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20220223110633.3006551-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Oleksij Rempel 2022-02-23 12:06:33 +01:00 committed by Jakub Kicinski
parent 37f40f81e5
commit 89183b6ea8
1 changed files with 19 additions and 55 deletions
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74
drivers/net/usb/asix_common.c
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@ -491,7 +491,8 @@ void asix_set_multicast(struct net_device *net)
asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
}
int asix_mdio_read(struct net_device *netdev, int phy_id, int loc)
static int __asix_mdio_read(struct net_device *netdev, int phy_id, int loc,
bool in_pm)
{
struct usbnet *dev = netdev_priv(netdev);
__le16 res;
@ -499,18 +500,18 @@ int asix_mdio_read(struct net_device *netdev, int phy_id, int loc)
mutex_lock(&dev->phy_mutex);
ret = asix_check_host_enable(dev, 0);
ret = asix_check_host_enable(dev, in_pm);
if (ret == -ENODEV || ret == -ETIMEDOUT) {
mutex_unlock(&dev->phy_mutex);
return ret;
}
ret = asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, (__u16)loc, 2,
&res, 0);
&res, in_pm);
if (ret < 0)
goto out;
ret = asix_set_hw_mii(dev, 0);
ret = asix_set_hw_mii(dev, in_pm);
out:
mutex_unlock(&dev->phy_mutex);
@ -520,8 +521,13 @@ out:
return ret < 0 ? ret : le16_to_cpu(res);
}
int asix_mdio_read(struct net_device *netdev, int phy_id, int loc)
{
return __asix_mdio_read(netdev, phy_id, loc, false);
}
static int __asix_mdio_write(struct net_device *netdev, int phy_id, int loc,
int val)
int val, bool in_pm)
{
struct usbnet *dev = netdev_priv(netdev);
__le16 res = cpu_to_le16(val);
@ -532,16 +538,16 @@ static int __asix_mdio_write(struct net_device *netdev, int phy_id, int loc,
mutex_lock(&dev->phy_mutex);
ret = asix_check_host_enable(dev, 0);
ret = asix_check_host_enable(dev, in_pm);
if (ret == -ENODEV)
goto out;
ret = asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2,
&res, 0);
&res, in_pm);
if (ret < 0)
goto out;
ret = asix_set_hw_mii(dev, 0);
ret = asix_set_hw_mii(dev, in_pm);
out:
mutex_unlock(&dev->phy_mutex);
@ -550,7 +556,7 @@ out:
void asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val)
{
__asix_mdio_write(netdev, phy_id, loc, val);
__asix_mdio_write(netdev, phy_id, loc, val, false);
}
/* MDIO read and write wrappers for phylib */
@ -558,67 +564,25 @@ int asix_mdio_bus_read(struct mii_bus *bus, int phy_id, int regnum)
{
struct usbnet *priv = bus->priv;
return asix_mdio_read(priv->net, phy_id, regnum);
return __asix_mdio_read(priv->net, phy_id, regnum, false);
}
int asix_mdio_bus_write(struct mii_bus *bus, int phy_id, int regnum, u16 val)
{
struct usbnet *priv = bus->priv;
return __asix_mdio_write(priv->net, phy_id, regnum, val);
return __asix_mdio_write(priv->net, phy_id, regnum, val, false);
}
int asix_mdio_read_nopm(struct net_device *netdev, int phy_id, int loc)
{
struct usbnet *dev = netdev_priv(netdev);
__le16 res;
int ret;
mutex_lock(&dev->phy_mutex);
ret = asix_check_host_enable(dev, 1);
if (ret == -ENODEV || ret == -ETIMEDOUT) {
mutex_unlock(&dev->phy_mutex);
return ret;
}
ret = asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id,
(__u16)loc, 2, &res, 1);
if (ret < 0) {
mutex_unlock(&dev->phy_mutex);
return ret;
}
asix_set_hw_mii(dev, 1);
mutex_unlock(&dev->phy_mutex);
netdev_dbg(dev->net, "asix_mdio_read_nopm() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n",
phy_id, loc, le16_to_cpu(res));
return le16_to_cpu(res);
return __asix_mdio_read(netdev, phy_id, loc, true);
}
void
asix_mdio_write_nopm(struct net_device *netdev, int phy_id, int loc, int val)
{
struct usbnet *dev = netdev_priv(netdev);
__le16 res = cpu_to_le16(val);
int ret;
netdev_dbg(dev->net, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n",
phy_id, loc, val);
mutex_lock(&dev->phy_mutex);
ret = asix_check_host_enable(dev, 1);
if (ret == -ENODEV) {
mutex_unlock(&dev->phy_mutex);
return;
}
asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id,
(__u16)loc, 2, &res, 1);
asix_set_hw_mii(dev, 1);
mutex_unlock(&dev->phy_mutex);
__asix_mdio_write(netdev, phy_id, loc, val, true);
}
void asix_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)