[PATCH 3.17 098/146] Revert "ath9k_hw: reduce ANI firstep range for older chips"

From: Greg Kroah-Hartman
Date: Mon Oct 27 2014 - 23:39:52 EST


3.17-stable review patch. If anyone has any objections, please let me know.

------------------

From: Felix Fietkau <nbd@xxxxxxxxxxx>

commit 171cdab8c78bb169d9693d587e1d02d2dd5a0274 upstream.

This reverts commit 09efc56345be4146ab9fc87a55c837ed5d6ea1ab

I've received reports that this change is decreasing throughput in some
rare conditions on an AR9280 based device

Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/net/wireless/ath/ath9k/ar5008_phy.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -1004,9 +1004,11 @@ static bool ar5008_hw_ani_control_new(st
case ATH9K_ANI_FIRSTEP_LEVEL:{
u32 level = param;

- value = level;
+ value = level * 2;
REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
AR_PHY_FIND_SIG_FIRSTEP, value);
+ REG_RMW_FIELD(ah, AR_PHY_FIND_SIG_LOW,
+ AR_PHY_FIND_SIG_FIRSTEP_LOW, value);

if (level != aniState->firstepLevel) {
ath_dbg(common, ANI,


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