From: Felix Fietkau <nbd@openwrt.org>
To: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Cc: Vasanth Thiagarajan <Vasanth.Thiagarajan@Atheros.com>,
"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
Luis Rodriguez <Luis.Rodriguez@Atheros.com>,
"linville@tuxdriver.com" <linville@tuxdriver.com>
Subject: Re: [PATCH 2/4] ath9k_hw: merge codepaths that access the cycle counter registers
Date: Mon, 04 Oct 2010 14:51:40 +0200 [thread overview]
Message-ID: <4CA9CDDC.4000302@openwrt.org> (raw)
In-Reply-To: <20101004122432.GA25423@vasanth-laptop>
On 2010-10-04 2:24 PM, Vasanthakumar Thiagarajan wrote:
>> >> + /* unfreeze counters */
>> >> + REG_WRITE(ah, AR_MIBC, 0);
>> >
>> > Please configure the relevant bit to unfreeze the counters.
>> What do you mean?
>
> AR_MIBC does more than just freeze/unfreeze the counters, though I
> dont see any issues with setting the whole register to zero, it
> looks buggy. Please configure only the relevant bit to
> freeze/unfreeze the counters.
Other places in the code set it to zero as well, though sometimes
written in a weird way. I also checked the specs, there is no bit that's
supposed to be active at this point.
- Felix
next prev parent reply other threads:[~2010-10-04 12:51 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-03 17:07 [PATCH 1/4] ath9k_hw: clean up calibration flags Felix Fietkau
2010-10-03 17:07 ` [PATCH 2/4] ath9k_hw: merge codepaths that access the cycle counter registers Felix Fietkau
2010-10-03 17:07 ` [PATCH 3/4] ath9k_hw: clean up register write buffering Felix Fietkau
2010-10-03 17:07 ` [PATCH 4/4] ath9k_hw: fix regression in ANI listen time calculation Felix Fietkau
2010-10-03 17:24 ` Luis R. Rodriguez
2010-10-03 19:08 ` Felix Fietkau
2010-10-03 19:10 ` Felix Fietkau
2010-10-04 8:56 ` [PATCH 3/4] ath9k_hw: clean up register write buffering Rajkumar Manoharan
2010-10-04 11:53 ` Felix Fietkau
2010-10-04 17:22 ` [PATCH v2 " Felix Fietkau
2010-10-05 4:38 ` Senthil Balasubramanian
2010-10-05 10:03 ` [PATCH v3 " Felix Fietkau
2010-10-06 20:32 ` John W. Linville
2010-10-04 6:34 ` [PATCH 2/4] ath9k_hw: merge codepaths that access the cycle counter registers Vasanthakumar Thiagarajan
2010-10-04 8:17 ` Adrian Chadd
2010-10-04 11:36 ` Felix Fietkau
2010-10-04 12:24 ` Vasanthakumar Thiagarajan
2010-10-04 12:51 ` Felix Fietkau [this message]
2010-10-05 9:59 ` Bruno Randolf
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