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authorLuis R. Rodriguez <lrodriguez@atheros.com>2009-12-18 11:26:04 -0500
committerJohn W. Linville <linville@tuxdriver.com>2010-01-12 13:43:54 -0500
commit14acdde6e527950f66c084dbf19bad6fbfcaeedc (patch)
tree86305edcd7ce8c0f59f698c50ed2e75aa247b513
parentcfa6cb2048beb35ae7f1d2fa19160aab240557d1 (diff)
downloadlinux-14acdde6e527950f66c084dbf19bad6fbfcaeedc.tar.bz2
ath9k: re-enable ps by default for new single chip families
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: stable@kernel.org 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>
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 79fbbda15493..3777b8449789 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1838,6 +1838,8 @@ 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 |
@@ -1855,7 +1857,8 @@ 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;