From: Miaoqing Pan <[email protected]>

JP WiFi certification for bandwidth of channel 14 failed, the OBW
is lower than the requirement. Clear the bb filter calibration power
threshold to increase OBW(+2). The fix only for qca9531 chip now.

Signed-off-by: Miaoqing Pan <[email protected]>
---
 drivers/net/wireless/ath/ath9k/ar9003_phy.c | 7 ++++++-
 drivers/net/wireless/ath/ath9k/ar9003_phy.h | 3 +++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c 
b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 201425e..ac1586a 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -976,9 +976,14 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
        /*
         * JAPAN regulatory.
         */
-       if (chan->channel == 2484)
+       if (chan->channel == 2484) {
                ar9003_hw_prog_ini(ah, &ah->iniCckfirJapan2484, 1);
 
+               if (AR_SREV_9531(ah))
+                       REG_RMW_FIELD(ah, AR_PHY_FCAL_2_0,
+                                     AR_PHY_FLC_PWR_THRESH, 0);
+       }
+
        ah->modes_index = modesIndex;
        ar9003_hw_override_ini(ah);
        ar9003_hw_set_channel_regs(ah, chan);
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h 
b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
index c5f8bc4..566da78 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
@@ -487,6 +487,9 @@
 #define AR_PHY_ADDAC_PARA_CTL    (AR_SM_BASE + 0x150)
 #define AR_PHY_XPA_CFG           (AR_SM_BASE + 0x158)
 
+#define AR_PHY_FLC_PWR_THRESH          7
+#define AR_PHY_FLC_PWR_THRESH_S                0
+
 #define AR_PHY_FRAME_CTL_CF_OVERLAP_WINDOW  3
 #define AR_PHY_FRAME_CTL_CF_OVERLAP_WINDOW_S    0
 
-- 
1.9.1

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