2016-02-18 09:20:15

by Miaoqing Pan

Subject: [PATCH] ath9k: clear bb filter calibration power threshold

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

2016-03-04 08:33:10

by Kalle Valo

Subject: Re: [PATCH] ath9k: clear bb filter calibration power threshold

[email protected] writes:

> 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]>

Applied to ath.git, thanks.

--
Kalle Valo