[PATCH v3 2/2] net: usb: asix88179_178a: de-duplicate code

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Remove the duplicated code for asix88179_178a bind and reset methods.

Signed-off-by: Alexander Kurz <akurz@xxxxxxxx>
---
 drivers/net/usb/ax88179_178a.c | 137 ++++++++++-------------------------------
 1 file changed, 31 insertions(+), 106 deletions(-)

diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index a6ef75907ae9..fea4c7b877cc 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -1223,7 +1223,7 @@ static int ax88179_led_setting(struct usbnet *dev)
 	return 0;
 }
 
-static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
+static int ax88179_bind_or_reset(struct usbnet *dev, bool do_reset)
 {
 	u8 buf[5];
 	u16 *tmp16;
@@ -1231,12 +1231,11 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
 	struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
 	struct ethtool_eee eee_data;
 
-	usbnet_get_endpoints(dev, intf);
-
 	tmp16 = (u16 *)buf;
 	tmp = (u8 *)buf;
 
-	memset(ax179_data, 0, sizeof(*ax179_data));
+	if (!do_reset)
+		memset(ax179_data, 0, sizeof(*ax179_data));
 
 	/* Power up ethernet PHY */
 	*tmp16 = 0;
@@ -1249,9 +1248,13 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
 	msleep(100);
 
+	if (do_reset)
+		ax88179_auto_detach(dev, 0);
+
 	ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
 			 ETH_ALEN, dev->net->dev_addr);
-	memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN);
+	if (!do_reset)
+		memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN);
 
 	/* RX bulk configuration */
 	memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
@@ -1266,19 +1269,21 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
 			  1, 1, tmp);
 
-	dev->net->netdev_ops = &ax88179_netdev_ops;
-	dev->net->ethtool_ops = &ax88179_ethtool_ops;
-	dev->net->needed_headroom = 8;
-	dev->net->max_mtu = 4088;
-
-	/* Initialize MII structure */
-	dev->mii.dev = dev->net;
-	dev->mii.mdio_read = ax88179_mdio_read;
-	dev->mii.mdio_write = ax88179_mdio_write;
-	dev->mii.phy_id_mask = 0xff;
-	dev->mii.reg_num_mask = 0xff;
-	dev->mii.phy_id = 0x03;
-	dev->mii.supports_gmii = 1;
+	if (!do_reset) {
+		dev->net->netdev_ops = &ax88179_netdev_ops;
+		dev->net->ethtool_ops = &ax88179_ethtool_ops;
+		dev->net->needed_headroom = 8;
+		dev->net->max_mtu = 4088;
+
+		/* Initialize MII structure */
+		dev->mii.dev = dev->net;
+		dev->mii.mdio_read = ax88179_mdio_read;
+		dev->mii.mdio_write = ax88179_mdio_write;
+		dev->mii.phy_id_mask = 0xff;
+		dev->mii.reg_num_mask = 0xff;
+		dev->mii.phy_id = 0x03;
+		dev->mii.supports_gmii = 1;
+	}
 
 	dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
 			      NETIF_F_RXCSUM;
@@ -1330,6 +1335,13 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
 	return 0;
 }
 
+static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+	usbnet_get_endpoints(dev, intf);
+
+	return ax88179_bind_or_reset(dev, false);
+}
+
 static void ax88179_unbind(struct usbnet *dev, struct usb_interface *intf)
 {
 	u16 tmp16;
@@ -1530,94 +1542,7 @@ static int ax88179_link_reset(struct usbnet *dev)
 
 static int ax88179_reset(struct usbnet *dev)
 {
-	u8 buf[5];
-	u16 *tmp16;
-	u8 *tmp;
-	struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
-	struct ethtool_eee eee_data;
-
-	tmp16 = (u16 *)buf;
-	tmp = (u8 *)buf;
-
-	/* Power up ethernet PHY */
-	*tmp16 = 0;
-	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
-
-	*tmp16 = AX_PHYPWR_RSTCTL_IPRL;
-	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
-	msleep(200);
-
-	*tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
-	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
-	msleep(100);
-
-	/* Ethernet PHY Auto Detach*/
-	ax88179_auto_detach(dev, 0);
-
-	ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,
-			 dev->net->dev_addr);
-
-	/* RX bulk configuration */
-	memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
-	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
-
-	dev->rx_urb_size = 1024 * 20;
-
-	*tmp = 0x34;
-	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
-
-	*tmp = 0x52;
-	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
-			  1, 1, tmp);
-
-	dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
-			      NETIF_F_RXCSUM;
-
-	dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
-				 NETIF_F_RXCSUM;
-
-	/* Enable checksum offload */
-	*tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
-	       AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
-	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);
-
-	*tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |
-	       AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
-	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);
-
-	/* Configure RX control register => start operation */
-	*tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
-		 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
-	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);
-
-	*tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL |
-	       AX_MONITOR_MODE_RWMP;
-	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);
-
-	/* Configure default medium type => giga */
-	*tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
-		 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
-		 AX_MEDIUM_GIGAMODE;
-	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
-			  2, 2, tmp16);
-
-	ax88179_led_setting(dev);
-
-	ax179_data->eee_enabled = 0;
-	ax179_data->eee_active = 0;
-
-	ax88179_disable_eee(dev);
-
-	ax88179_ethtool_get_eee(dev, &eee_data);
-	eee_data.advertised = 0;
-	ax88179_ethtool_set_eee(dev, &eee_data);
-
-	/* Restart autoneg */
-	mii_nway_restart(&dev->mii);
-
-	usbnet_link_change(dev, 0, 0);
-
-	return 0;
+	return ax88179_bind_or_reset(dev, true);
 }
 
 static int ax88179_stop(struct usbnet *dev)
-- 
2.11.0

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