Commit 93697460 authored Jul 30, 2010 by Felix Fietkau Committed by John W. Linville Aug 04, 2010

ath9k_hw: fix periodic noise floor calibration on AR9003

The periodic noise floor calibration is broken on this chip family, because
it keeps triggering a software-filtered noise floor calibration, but never
reads the result before uploading the history buffer value to the hardware.

Fix this with a call to ath9k_hw_getnf(), just like on AR9002.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

parent 00c86590

drivers/net/wireless/ath/ath9k/ar9003_calib.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -148,6 +148,12 @@ static bool ar9003_hw_calibrate(struct ath_hw *ah,

		/* Do NF cal only at longer intervals */
		if (longcal) {
		/*
		* Get the value from the previous NF cal and update
		* history buffer.
		*/
		ath9k_hw_getnf(ah, chan);

		/*
		* Load the NF from history buffer of the current channel.
		* NF is slow time-variant, so it is OK to use a historical