b43: set TMS to work with current band width for N-PHY

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index fa48803..670fd7b 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -1150,6 +1150,12 @@
 
 	flags |= B43_TMSLOW_PHYCLKEN;
 	flags |= B43_TMSLOW_PHYRESET;
+	if (dev->phy.type == B43_PHYTYPE_N) {
+		if (b43_channel_type_is_40mhz(dev->phy.channel_type))
+			flags |= B43_TMSLOW_PHYCLKSPEED_160MHZ;
+		else
+			flags |= B43_TMSLOW_PHYCLKSPEED_80MHZ;
+	}
 	ssb_device_enable(dev->dev, flags);
 	msleep(2);		/* Wait for the PLL to turn on. */