diff options
| author | Vivek Natarajan <vnatarajan@atheros.com> | 2010-10-30 16:35:13 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-11-08 21:53:46 (GMT) |
| commit | 10598c124ecabbbfd7522f74de19b8f7d52a1bee (patch) | |
| tree | 6cc409c018b6ee401e3fb3d4196fcc1e03b0e866 /drivers/net/wireless/ath/ath9k/main.c | |
| parent | 5f841b4130a639e5f0fbcf4a9b26045d734e4ee6 (diff) | |
| download | linux-fsl-qoriq-10598c124ecabbbfd7522f74de19b8f7d52a1bee.tar.xz | |
ath9k: Fix a DMA latency issue for Intel Pinetrail platforms.
Throughput was severely affected in Intel Pinetrail platforms
because of a DMA problem in C3 state. This patch fixes this
issue.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
CC: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index cf6fa54..09dcdd7 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -15,6 +15,7 @@ */ #include <linux/nl80211.h> +#include <linux/pm_qos_params.h> #include "ath9k.h" #include "btcoex.h" @@ -1239,6 +1240,8 @@ static int ath9k_start(struct ieee80211_hw *hw) ath9k_btcoex_timer_resume(sc); } + pm_qos_update_request(&ath9k_pm_qos_req, 55); + mutex_unlock: mutex_unlock(&sc->mutex); @@ -1416,6 +1419,8 @@ static void ath9k_stop(struct ieee80211_hw *hw) sc->sc_flags |= SC_OP_INVALID; + pm_qos_update_request(&ath9k_pm_qos_req, PM_QOS_DEFAULT_VALUE); + mutex_unlock(&sc->mutex); ath_print(common, ATH_DBG_CONFIG, "Driver halt\n"); |