staging: et131x: Only configure regs if link state changes

Some config regs get set whenever adjust_link() is called. Change this
so that these registers only get set when the link state changes to UP.

Also remove unnecessary second assignment of boot_coma.

Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c
index e2d5555..82508fb 100644 (file)
--- a/drivers/staging/et131x/et131x.c
+++ b/drivers/staging/et131x/et131x.c
@@ -3819,46 +3819,6 @@ static void et131x_adjust_link(struct net_device *netdev)
        struct et131x_adapter *adapter = netdev_priv(netdev);
        struct  phy_device *phydev = adapter->phydev;
 
-       if (netif_carrier_ok(netdev)) {
-               adapter->boot_coma = 20;
-
-               if (phydev && phydev->speed == SPEED_10) {
-                       /*
-                        * NOTE - Is there a way to query this without
-                        * TruePHY?
-                        * && TRU_QueryCoreType(adapter->hTruePhy, 0)==
-                        * EMI_TRUEPHY_A13O) {
-                        */
-                       u16 register18;
-
-                       et131x_mii_read(adapter, PHY_MPHY_CONTROL_REG,
-                                        &register18);
-                       et131x_mii_write(adapter, PHY_MPHY_CONTROL_REG,
-                                        register18 | 0x4);
-                       et131x_mii_write(adapter, PHY_INDEX_REG,
-                                        register18 | 0x8402);
-                       et131x_mii_write(adapter, PHY_DATA_REG,
-                                        register18 | 511);
-                       et131x_mii_write(adapter, PHY_MPHY_CONTROL_REG,
-                                        register18);
-               }
-
-               et1310_config_flow_control(adapter);
-
-               if (phydev && phydev->speed == SPEED_1000 &&
-                               adapter->registry_jumbo_packet > 2048) {
-                       u16 reg;
-
-                       et131x_mii_read(adapter, PHY_CONFIG, &reg);
-                       reg &= ~ET_PHY_CONFIG_TX_FIFO_DEPTH;
-                       reg |= ET_PHY_CONFIG_FIFO_DEPTH_32;
-                       et131x_mii_write(adapter, PHY_CONFIG, reg);
-               }
-
-               et131x_set_rx_dma_timer(adapter);
-               et1310_config_mac_regs2(adapter);
-       }
-
        if (phydev && phydev->link != adapter->link) {
                /*
                 * Check to see if we are in coma mode and if
@@ -3868,11 +3828,47 @@ static void et131x_adjust_link(struct net_device *netdev)
                if (et1310_in_phy_coma(adapter))
                        et1310_disable_phy_coma(adapter);
 
+               adapter->link = phydev->link;
+               phy_print_status(phydev);
+
                if (phydev->link) {
                        adapter->boot_coma = 20;
+                       if (phydev && phydev->speed == SPEED_10) {
+                               /*
+                                * NOTE - Is there a way to query this without
+                                * TruePHY?
+                                * && TRU_QueryCoreType(adapter->hTruePhy, 0)==
+                                * EMI_TRUEPHY_A13O) {
+                                */
+                               u16 register18;
+
+                               et131x_mii_read(adapter, PHY_MPHY_CONTROL_REG,
+                                                &register18);
+                               et131x_mii_write(adapter, PHY_MPHY_CONTROL_REG,
+                                                register18 | 0x4);
+                               et131x_mii_write(adapter, PHY_INDEX_REG,
+                                                register18 | 0x8402);
+                               et131x_mii_write(adapter, PHY_DATA_REG,
+                                                register18 | 511);
+                               et131x_mii_write(adapter, PHY_MPHY_CONTROL_REG,
+                                                register18);
+                       }
+
+                       et1310_config_flow_control(adapter);
+
+                       if (phydev && phydev->speed == SPEED_1000 &&
+                                       adapter->registry_jumbo_packet > 2048) {
+                               u16 reg;
+
+                               et131x_mii_read(adapter, PHY_CONFIG, &reg);
+                               reg &= ~ET_PHY_CONFIG_TX_FIFO_DEPTH;
+                               reg |= ET_PHY_CONFIG_FIFO_DEPTH_32;
+                               et131x_mii_write(adapter, PHY_CONFIG, reg);
+                       }
+
+                       et131x_set_rx_dma_timer(adapter);
+                       et1310_config_mac_regs2(adapter);
                } else {
-                       dev_warn(&adapter->pdev->dev,
-                           "Link down - cable problem ?\n");
                        adapter->boot_coma = 0;
 
                        if (phydev->speed == SPEED_10) {
@@ -3917,9 +3913,6 @@ static void et131x_adjust_link(struct net_device *netdev)
                        et131x_enable_txrx(netdev);
                }
 
-               adapter->link = phydev->link;
-
-               phy_print_status(phydev);
        }
 }