b43: N-PHY: rev2: save and restore PHY regs on RSSI poll

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

drivers/net/wireless/b43/phy_n.c

@@ -1846,6 +1846,14 @@ static int b43_nphy_poll_rssi(struct b43_wldev *dev, u8 type, s32 *buf,
 		save_regs_phy[5] = b43_phy_read(dev, B43_NPHY_AFECTL_OVER);
 		save_regs_phy[6] = b43_phy_read(dev, B43_NPHY_TXF_40CO_B1S0);
 		save_regs_phy[7] = b43_phy_read(dev, B43_NPHY_TXF_40CO_B32S1);
+	} else if (dev->phy.rev == 2) {
+		save_regs_phy[0] = b43_phy_read(dev, B43_NPHY_AFECTL_C1);
+		save_regs_phy[1] = b43_phy_read(dev, B43_NPHY_AFECTL_C2);
+		save_regs_phy[2] = b43_phy_read(dev, B43_NPHY_AFECTL_OVER);
+		save_regs_phy[3] = b43_phy_read(dev, B43_NPHY_RFCTL_CMD);
+		save_regs_phy[4] = b43_phy_read(dev, B43_NPHY_RFCTL_OVER);
+		save_regs_phy[5] = b43_phy_read(dev, B43_NPHY_RFCTL_RSSIO1);
+		save_regs_phy[6] = b43_phy_read(dev, B43_NPHY_RFCTL_RSSIO2);
 	}
 
 	b43_nphy_rssi_select(dev, 5, type);
@@ -1889,6 +1897,14 @@ static int b43_nphy_poll_rssi(struct b43_wldev *dev, u8 type, s32 *buf,
 		b43_phy_write(dev, B43_NPHY_AFECTL_OVER, save_regs_phy[5]);
 		b43_phy_write(dev, B43_NPHY_TXF_40CO_B1S0, save_regs_phy[6]);
 		b43_phy_write(dev, B43_NPHY_TXF_40CO_B32S1, save_regs_phy[7]);
+	} else if (dev->phy.rev == 2) {
+		b43_phy_write(dev, B43_NPHY_AFECTL_C1, save_regs_phy[0]);
+		b43_phy_write(dev, B43_NPHY_AFECTL_C2, save_regs_phy[1]);
+		b43_phy_write(dev, B43_NPHY_AFECTL_OVER, save_regs_phy[2]);
+		b43_phy_write(dev, B43_NPHY_RFCTL_CMD, save_regs_phy[3]);
+		b43_phy_write(dev, B43_NPHY_RFCTL_OVER, save_regs_phy[4]);
+		b43_phy_write(dev, B43_NPHY_RFCTL_RSSIO1, save_regs_phy[5]);
+		b43_phy_write(dev, B43_NPHY_RFCTL_RSSIO2, save_regs_phy[6]);
 	}
 
 	return out;