diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index 0197531..435f945 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -520,7 +520,7 @@
 	if (state == STATE_SLEEP) {
 		rt2x00pci_register_read(rt2x00dev, CSR20, &reg);
 		rt2x00_set_field32(&reg, CSR20_DELAY_AFTER_TBCN,
-				   (libconf->conf->beacon_int - 20) * 16);
+				   (rt2x00dev->beacon_int - 20) * 16);
 		rt2x00_set_field32(&reg, CSR20_TBCN_BEFORE_WAKEUP,
 				   libconf->conf->listen_interval - 1);
 
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index f95cb64..08b30d0 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -569,7 +569,7 @@
 	if (state == STATE_SLEEP) {
 		rt2x00pci_register_read(rt2x00dev, CSR20, &reg);
 		rt2x00_set_field32(&reg, CSR20_DELAY_AFTER_TBCN,
-				   (libconf->conf->beacon_int - 20) * 16);
+				   (rt2x00dev->beacon_int - 20) * 16);
 		rt2x00_set_field32(&reg, CSR20_TBCN_BEFORE_WAKEUP,
 				   libconf->conf->listen_interval - 1);
 
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 69f966f..66daf68 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -647,7 +647,7 @@
 	if (state == STATE_SLEEP) {
 		rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 		rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON,
-				   libconf->conf->beacon_int - 20);
+				   rt2x00dev->beacon_int - 20);
 		rt2x00_set_field16(&reg, MAC_CSR18_BEACONS_BEFORE_WAKEUP,
 				   libconf->conf->listen_interval - 1);
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 2b64a61..a498dde 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -802,6 +802,11 @@
 	u8 calibration[2];
 
 	/*
+	 * Beacon interval.
+	 */
+	u16 beacon_int;
+
+	/*
 	 * Low level statistics which will have
 	 * to be kept up to date while device is running.
 	 */
diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c
index c5bbf0b..3e019a1 100644
--- a/drivers/net/wireless/rt2x00/rt2x00config.c
+++ b/drivers/net/wireless/rt2x00/rt2x00config.c
@@ -108,6 +108,9 @@
 	erp.basic_rates = bss_conf->basic_rates;
 	erp.beacon_int = bss_conf->beacon_int;
 
+	/* Update global beacon interval time, this is needed for PS support */
+	rt2x00dev->beacon_int = bss_conf->beacon_int;
+
 	rt2x00dev->ops->lib->config_erp(rt2x00dev, &erp);
 }
 
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index a8bf5c4..49b29ff 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -956,7 +956,7 @@
 	if (state == STATE_SLEEP) {
 		rt2x00pci_register_read(rt2x00dev, MAC_CSR11, &reg);
 		rt2x00_set_field32(&reg, MAC_CSR11_DELAY_AFTER_TBCN,
-				   libconf->conf->beacon_int - 10);
+				   rt2x00dev->beacon_int - 10);
 		rt2x00_set_field32(&reg, MAC_CSR11_TBCN_BEFORE_WAKEUP,
 				   libconf->conf->listen_interval - 1);
 		rt2x00_set_field32(&reg, MAC_CSR11_WAKEUP_LATENCY, 5);
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 211a3d6..c188488 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -852,7 +852,7 @@
 	if (state == STATE_SLEEP) {
 		rt2x00usb_register_read(rt2x00dev, MAC_CSR11, &reg);
 		rt2x00_set_field32(&reg, MAC_CSR11_DELAY_AFTER_TBCN,
-				   libconf->conf->beacon_int - 10);
+				   rt2x00dev->beacon_int - 10);
 		rt2x00_set_field32(&reg, MAC_CSR11_TBCN_BEFORE_WAKEUP,
 				   libconf->conf->listen_interval - 1);
 		rt2x00_set_field32(&reg, MAC_CSR11_WAKEUP_LATENCY, 5);