ath9k: Fix ath9k prevents CPU to enter C3 states

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The DMA latency issue is observed only in Intel pinetrail platforms
but in the driver we had a default PM-QOS value of 55. This caused
unnecessary power consumption and battery drain in other platforms.

Remove the pm-qos thing in the driver code and address the throughput
issue in Intel pinetrail platfroms in user space using any one of
the scripts in below links:

http://www.kernel.org/pub/linux/kernel/people/mcgrof/scripts/cpudmalatency.c
http://johannes.sipsolutions.net/files/netlatency.c.txt

More details can be found in the following bugzilla link:

https://bugzilla.kernel.org/show_bug.cgi?id=27532

This reverts the following commits:

	98c316e348
	4dc3530df7
	10598c124e

Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

...

This commit is contained in:

Mohammed Shafi Shajakhan 2011-02-15 21:29:32 +05:30 • committed by John W. Linville

parent a7b545f7fe

commit 0f5cd45960

3 changed files with 0 additions and 22 deletions

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6

drivers/net/wireless/ath/ath9k/ath9k.h

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8

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

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8

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

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