ath9k_hw: Find the maximum number of chains that hw supports

Have it in ah->caps. This will be used during various
calibrations.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 76ae3296e3fc..fcfd63efe55a 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -199,6 +199,8 @@ struct ath9k_hw_capabilities {
         u16 rts_aggr_limit;
         u8 tx_chainmask;
         u8 rx_chainmask;
+        u8 max_txchains;
+        u8 max_rxchains;
         u16 tx_triglevel_max;
         u16 reg_cap;
         u8 num_gpio_pins;