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ath9k: re-enable ps by default for new single chip families

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commit 14acdde6e5 upstream.

The newer single chip hardware family of chipsets have not been
experiencing issues with power saving set by default with recent
fixes merged (even into stable). The remaining issues are only
reported with AR5416 and since enabling PS by default can increase
power savings considerably best to take advantage of that feature
as this has been tested properly.

For more details on this issue see the bug report:

http://bugzilla.kernel.org/show_bug.cgi?id=14267

We leave AR5416 with PS disabled by default, that seems to require
some more work.

Cc: Peter Stuge <peter@stuge.se>
Cc: Justin P. Mattock  <justinmattock@gmail.com>
Cc: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Luis R. Rodriguez
2009-12-18 11:26:04 -05:00
committed by Greg Kroah-Hartman
parent f50debe647
commit 82d8cfa27f
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/wireless/ath/ath9k/main.c
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@@ -1849,6 +1849,8 @@ bad_free_hw:
void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
{
struct ath_hw *ah = sc->sc_ah;
hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
IEEE80211_HW_SIGNAL_DBM |
@@ -1866,7 +1868,8 @@ void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
BIT(NL80211_IFTYPE_ADHOC) |
BIT(NL80211_IFTYPE_MESH_POINT);
hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
if (AR_SREV_5416(ah))
hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
hw->queues = 4;
hw->max_rates = 4;