ath5k: Add a function to read chipset's MAC revision

Add bus dependent revision read function which is used to
determine chipset's MAC before hardware is initialized.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Wojciech Dubowik <Wojciech.Dubowik@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
index 5d9fdc2ccfaa..5e525eba61be 100644
--- a/drivers/net/wireless/ath/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath/ath5k/ath5k.h
@@ -1046,6 +1046,7 @@ struct ath5k_hw {
         u32                     ah_phy;
         u32                     ah_mac_srev;
         u16                     ah_mac_version;
+        u16                     ah_mac_revision;
         u16                     ah_phy_revision;
         u16                     ah_radio_5ghz_revision;
         u16                     ah_radio_2ghz_revision;
@@ -1156,8 +1157,9 @@ void ath5k_hw_deinit(struct ath5k_hw *ah);
 int ath5k_sysfs_register(struct ath5k_softc *sc);
 void ath5k_sysfs_unregister(struct ath5k_softc *sc);
 
-/*Chip id helper function */
+/*Chip id helper functions */
 const char *ath5k_chip_name(enum ath5k_srev_type type, u_int16_t val);
+int ath5k_hw_read_srev(struct ath5k_hw *ah);
 
 /* LED functions */
 int ath5k_init_leds(struct ath5k_softc *sc);