b43: N-PHY: optimize radio switching on/off

Broadcom's wl 6.30.223.141 has some optimizations for radios 0x205[67].

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 7 insertions, 3 deletions

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index bf279170b483..32538ac5f7e4 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -3742,7 +3742,9 @@ static int b43_switch_band(struct b43_wldev *dev,
         b43dbg(dev->wl, "Switching to %s GHz band\n",
                band_to_string(chan->band));
 
-        b43_software_rfkill(dev, true);
+        /* Some new devices don't need disabling radio for band switching */
+        if (!(phy->type == B43_PHYTYPE_N && phy->rev >= 3))
+                b43_software_rfkill(dev, true);
 
         phy->gmode = gmode;
         b43_phy_put_into_reset(dev);
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 98ff8060f526..86569f6a8705 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -5707,10 +5707,12 @@ static void b43_nphy_op_software_rfkill(struct b43_wldev *dev,
                 }
         } else {
                 if (dev->phy.rev >= 7) {
-                        b43_radio_2057_init(dev);
+                        if (!dev->phy.radio_on)
+                                b43_radio_2057_init(dev);
                         b43_switch_channel(dev, dev->phy.channel);
                 } else if (dev->phy.rev >= 3) {
-                        b43_radio_init2056(dev);
+                        if (!dev->phy.radio_on)
+                                b43_radio_init2056(dev);
                         b43_switch_channel(dev, dev->phy.channel);
                 } else {
                         b43_radio_init2055(dev);