ath9k_hw: fix tx gain table index for AR953x

Fix tx gain table index on fast channel change for AR953x.

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

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 8927fc34d84c..542a8d51d3b0 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -1552,13 +1552,15 @@ static int ar9003_hw_fast_chan_change(struct ath_hw *ah,
                                       u8 *ini_reloaded)
 {
         unsigned int regWrites = 0;
-        u32 modesIndex;
+        u32 modesIndex, txgain_index;
 
         if (IS_CHAN_5GHZ(chan))
                 modesIndex = IS_CHAN_HT40(chan) ? 2 : 1;
         else
                 modesIndex = IS_CHAN_HT40(chan) ? 3 : 4;
 
+        txgain_index = AR_SREV_9531(ah) ? 1 : modesIndex;
+
         if (modesIndex == ah->modes_index) {
                 *ini_reloaded = false;
                 goto set_rfmode;
@@ -1573,7 +1575,7 @@ static int ar9003_hw_fast_chan_change(struct ath_hw *ah,
                 ar9003_hw_prog_ini(ah, &ah->ini_radio_post_sys2ant,
                                    modesIndex);
 
-        REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
+        REG_WRITE_ARRAY(&ah->iniModesTxGain, txgain_index, regWrites);
 
         if (AR_SREV_9462_20_OR_LATER(ah)) {
                 /*