Commit b874ec8d authored Sep 29, 2014 by Felix Fietkau Committed by John W. Linville Sep 30, 2014

ath9k_hw: reduce ANI spur immunity setting on HT40 extension channel



The cycpwr_thr1 value needs to be lower on the extension channel than on
the control channel, similar to how the register settings are programmed
in the initvals.

Also drop the unnecessary check for HT40 - this register can always be
written. This patch has been reported to improve HT40 stability and
throughput in some environments.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

parent 171cdab8

drivers/net/wireless/ath/ath9k/ar5008_phy.c

+2 −3

Original line number	Diff line number	Diff line
		@@ -1042,9 +1042,8 @@ static bool ar5008_hw_ani_control_new(struct ath_hw *ah,
		REG_RMW_FIELD(ah, AR_PHY_TIMING5,
		AR_PHY_TIMING5_CYCPWR_THR1, value);

		if (IS_CHAN_HT40(ah->curchan))
		REG_RMW_FIELD(ah, AR_PHY_EXT_CCA,
		AR_PHY_EXT_TIMING5_CYCPWR_THR1, value);
		AR_PHY_EXT_TIMING5_CYCPWR_THR1, value - 1);

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

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