atl1c: Disable L0S when no cable link

L0S might be unstable if no cable link, only enable it when link up. Signed-off-by: xiong <[email protected]> Tested-by: Liu David <[email protected]> Signed-off-by: David S. Miller <[email protected]>
goeke · May 1, 2012 · 4fc3635 · 4fc3635
1 parent 5e5c096
commit 4fc3635
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
@@ -1326,7 +1326,7 @@ static void atl1c_set_aspm(struct atl1c_hw *hw, u16 link_speed)
 	}
 
 	/* L0S/L1 enable */
-	if (hw->ctrl_flags & ATL1C_ASPM_L0S_SUPPORT)
+	if ((hw->ctrl_flags & ATL1C_ASPM_L0S_SUPPORT) && link_speed != SPEED_0)
 		pm_ctrl_data |= PM_CTRL_ASPM_L0S_EN | PM_CTRL_MAC_ASPM_CHK;
 	if (hw->ctrl_flags & ATL1C_ASPM_L1_SUPPORT)
 		pm_ctrl_data |= PM_CTRL_ASPM_L1_EN | PM_CTRL_MAC_ASPM_CHK;