ath5k: disable 5 GHz support if a 2.4 GHz radio is detected

On a dual-radio dual-band AR5312 device, the calibration data is shared
between the 5 GHz and the 2.4 GHz radio/MAC.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath5k/caps.c b/drivers/net/wireless/ath/ath5k/caps.c
index f77e8a7..7dd88e1 100644 (file)
--- a/drivers/net/wireless/ath/ath5k/caps.c
+++ b/drivers/net/wireless/ath/ath5k/caps.c
@@ -94,6 +94,9 @@ int ath5k_hw_set_capabilities(struct ath5k_hw *ah)
                }
        }
 
+       if ((ah->ah_radio_5ghz_revision & 0xf0) == AR5K_SREV_RAD_2112)
+               __clear_bit(AR5K_MODE_11A, caps->cap_mode);
+
        /* Set number of supported TX queues */
        if (ah->ah_version == AR5K_AR5210)
                caps->cap_queues.q_tx_num = AR5K_NUM_TX_QUEUES_NOQCU;