libertas_usb: program OLPC EC wakeup mask for wake-on-WLAN

OLPC power management code has recently gone upstream. This piece
completes the puzzle for libertas_usb, which now programs the OLPC EC
for wlan wakeups when they have been requested.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c
index e368b29..ca6e0a4 100644 (file)
--- a/drivers/net/wireless/libertas/if_usb.c
+++ b/drivers/net/wireless/libertas/if_usb.c
@@ -1112,6 +1112,15 @@ static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
        if (priv->psstate != PS_STATE_FULL_POWER)
                return -1;
 
+#ifdef CONFIG_OLPC
+       if (machine_is_olpc()) {
+               if (priv->wol_criteria == EHS_REMOVE_WAKEUP)
+                       olpc_ec_wakeup_clear(EC_SCI_SRC_WLAN);
+               else
+                       olpc_ec_wakeup_set(EC_SCI_SRC_WLAN);
+       }
+#endif
+
        ret = lbs_suspend(priv);
        if (ret)
                goto out;