p54: improve site survey

The firmware keeps track of channel usage. This data can
be used by the automatic channel selection to find the best
channel.

Survey data from wlan4
	frequency:				5200 MHz [in use]
	noise:					-91 dBm
	channel active time:			811909 ms
	channel busy time:			63395 ms
	channel transmit time:			59636 ms
Survey data from wlan4
	frequency:				5210 MHz
	noise:					-91 dBm
	channel active time:			121 ms
	channel busy time:			119 ms
	channel transmit time:			0 ms

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/p54/fwio.c b/drivers/net/wireless/p54/fwio.c
index b6a061c..53a3408 100644
--- a/drivers/net/wireless/p54/fwio.c
+++ b/drivers/net/wireless/p54/fwio.c
@@ -385,6 +385,7 @@
 		setup->v2.osc_start_delay = cpu_to_le16(65535);
 	}
 	p54_tx(priv, skb);
+	priv->phy_idle = mode == P54_FILTER_TYPE_HIBERNATE;
 	return 0;
 }
 
@@ -626,6 +627,7 @@
 	psm->exclude[0] = WLAN_EID_TIM;
 
 	p54_tx(priv, skb);
+	priv->phy_ps = mode != P54_PSM_CAM;
 	return 0;
 }