diff options
| author | Mohammed Shafi Shajakhan <mshajakhan@atheros.com> | 2011-02-15 21:29:32 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-02-15 11:16:00 -0500 |
| commit | 0f5cd45960173ba5b36727decbb4a241cbd35ef9 (patch) | |
| tree | 6e4528d6eee03aec59b3b630aae272f34e7f27b7 /sound/drivers | |
| parent | a7b545f7fe753ca3dc1b51ca57f90cd59d974e44 (diff) | |
ath9k: Fix ath9k prevents CPU to enter C3 statesmaster-2011-02-15
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:
98c316e348bedffa730e6f1e4baeb8a3c3e0f28b
4dc3530df7c0428b41c00399a7ee8c929406d181
10598c124ecabbbfd7522f74de19b8f7d52a1bee
Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'sound/drivers')
0 files changed, 0 insertions, 0 deletions