atl1c: disable L1/L0s when link detected
Disable L1/L0s when link detected. We enable L1/L0s when link connected
before, but there is some hareware error on some platform. So just diable
this feature when link connected. This feature is about power saving.
Signed-off-by: Jie Yang <jie.yang@atheros.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/atl1c/atl1c_main.c b/drivers/net/atl1c/atl1c_main.c
index deb7b53..8b17278 100644
--- a/drivers/net/atl1c/atl1c_main.c
+++ b/drivers/net/atl1c/atl1c_main.c
@@ -220,11 +220,11 @@
/* link down */
if (netif_carrier_ok(netdev)) {
hw->hibernate = true;
- atl1c_set_aspm(hw, false);
if (atl1c_stop_mac(hw) != 0)
if (netif_msg_hw(adapter))
dev_warn(&pdev->dev,
"stop mac failed\n");
+ atl1c_set_aspm(hw, false);
}
netif_carrier_off(netdev);
} else {
@@ -240,10 +240,10 @@
adapter->link_duplex != duplex) {
adapter->link_speed = speed;
adapter->link_duplex = duplex;
+ atl1c_set_aspm(hw, true);
atl1c_enable_tx_ctrl(hw);
atl1c_enable_rx_ctrl(hw);
atl1c_setup_mac_ctrl(adapter);
- atl1c_set_aspm(hw, true);
if (netif_msg_link(adapter))
dev_info(&pdev->dev,
"%s: %s NIC Link is Up<%d Mbps %s>\n",
@@ -1242,9 +1242,7 @@
AT_READ_REG(hw, REG_PM_CTRL, &pm_ctrl_data);
- pm_ctrl_data &= PM_CTRL_SERDES_PD_EX_L1;
- pm_ctrl_data |= ~PM_CTRL_SERDES_BUDS_RX_L1_EN;
- pm_ctrl_data |= ~PM_CTRL_SERDES_L1_EN;
+ pm_ctrl_data &= ~PM_CTRL_SERDES_PD_EX_L1;
pm_ctrl_data &= ~(PM_CTRL_L1_ENTRY_TIMER_MASK <<
PM_CTRL_L1_ENTRY_TIMER_SHIFT);
@@ -1254,19 +1252,11 @@
pm_ctrl_data |= PM_CTRL_SERDES_PLL_L1_EN;
pm_ctrl_data &= ~PM_CTRL_CLK_SWH_L1;
- if (hw->ctrl_flags & ATL1C_ASPM_L1_SUPPORT) {
- pm_ctrl_data |= AT_ASPM_L1_TIMER <<
- PM_CTRL_L1_ENTRY_TIMER_SHIFT;
- pm_ctrl_data |= PM_CTRL_ASPM_L1_EN;
- } else
- pm_ctrl_data &= ~PM_CTRL_ASPM_L1_EN;
-
- if (hw->ctrl_flags & ATL1C_ASPM_L0S_SUPPORT)
- pm_ctrl_data |= PM_CTRL_ASPM_L0S_EN;
- else
- pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN;
-
+ pm_ctrl_data |= PM_CTRL_SERDES_BUDS_RX_L1_EN;
+ pm_ctrl_data |= PM_CTRL_SERDES_L1_EN;
} else {
+ pm_ctrl_data &= ~PM_CTRL_SERDES_BUDS_RX_L1_EN;
+ pm_ctrl_data &= ~PM_CTRL_SERDES_L1_EN;
pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN;
pm_ctrl_data &= ~PM_CTRL_SERDES_PLL_L1_EN;