From: Luis R. Rodriguez Date: Fri, 18 Dec 2009 16:26:04 +0000 (-0500) Subject: ath9k: re-enable ps by default for new single chip families X-Git-Tag: firefly_0821_release~10186^2~1412 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1d8fba816fb4f6546dd1e8c6b302824f1adfde42;p=firefly-linux-kernel-4.4.55.git ath9k: re-enable ps by default for new single chip families commit 14acdde6e527950f66c084dbf19bad6fbfcaeedc 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 Cc: Justin P. Mattock Cc: Kristoffer Ericson Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 087b7e502d74..0c349cece951 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1538,6 +1538,8 @@ bad_no_ah: 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 | @@ -1558,7 +1560,10 @@ void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_MESH_POINT); - hw->wiphy->ps_default = false; + if (AR_SREV_5416(ah)) + hw->wiphy->ps_default = false; + else + hw->wiphy->ps_default = true; hw->queues = 4; hw->max_rates = 4;