ath9k_hw: Add radio retention support for AR9480

Supported calibrations of radio retention table (RTT) are
	- DC offset
	- Filter
	- Peak detect

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index e6b0d6883ac5..0eb0b3bcb74e 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1709,6 +1709,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
         if (caldata) {
                 caldata->done_txiqcal_once = false;
                 caldata->done_txclcal_once = false;
+                caldata->rtt_hist.num_readings = 0;
         }
         if (!ath9k_hw_init_cal(ah, chan))
                 return -EIO;
@@ -2319,6 +2320,9 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
                 if (!AR_SREV_9330(ah))
                         ah->enabled_cals |= TX_IQ_ON_AGC_CAL;
         }
+        if (AR_SREV_9480(ah))
+                pCap->hw_caps |= ATH9K_HW_CAP_RTT;
+
         return 0;
 }