net/e1000/base: increase LANPHYPC low duration

LANPHYPC low duration of 10 usec was too low for some corner cases
causing interface mismatches during Ultra Low Power (ULP) exit.

This patch increases the LANPHYPC low duration to 1 msec.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>

diff --git a/drivers/net/e1000/base/e1000_ich8lan.c b/drivers/net/e1000/base/e1000_ich8lan.c
index 212526f..0ac982c 100644 (file)
--- a/drivers/net/e1000/base/e1000_ich8lan.c
+++ b/drivers/net/e1000/base/e1000_ich8lan.c
@@ -277,7 +277,7 @@ STATIC void e1000_toggle_lanphypc_pch_lpt(struct e1000_hw *hw)
        mac_reg &= ~E1000_CTRL_LANPHYPC_VALUE;
        E1000_WRITE_REG(hw, E1000_CTRL, mac_reg);
        E1000_WRITE_FLUSH(hw);
-       usec_delay(10);
+       msec_delay(1);
        mac_reg &= ~E1000_CTRL_LANPHYPC_OVERRIDE;
        E1000_WRITE_REG(hw, E1000_CTRL, mac_reg);
        E1000_WRITE_FLUSH(hw);