diff options
| author | Felix Fietkau <nbd@nbd.name> | 2018-06-21 11:17:53 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2018-06-27 19:14:46 +0300 |
| commit | aea38272920c227865af25c7d7710f1ab0d8a1ce (patch) | |
| tree | 398b82928ba99e6d68bd9ce18caee8bf6265f549 /drivers/net/wireless/mediatek/mt76/mt76x2_main.c | |
| parent | 81454b8405f24df8b24984698d62c5f560d01fe3 (diff) | |
mt76: fix beacon timer drift
The beacon timer drifts by 1 microsecond every TBTT. After 20 minutes
with a beacon interval of 100, the drift will be almost 12 ms, enough to
cause weird issues for devices in powersave mode.
Since the beacon timer is configured in units of 1/16 TU (64 us), we
need to adjust it once every 64 beacons and only for one beacon.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x2_main.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x2_main.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_main.c b/drivers/net/wireless/mediatek/mt76/mt76x2_main.c index ce90ff999b49..e4e41faf6739 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2_main.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2_main.c @@ -238,10 +238,13 @@ mt76x2_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, if (changed & BSS_CHANGED_BSSID) mt76x2_mac_set_bssid(dev, mvif->idx, info->bssid); - if (changed & BSS_CHANGED_BEACON_INT) + if (changed & BSS_CHANGED_BEACON_INT) { mt76_rmw_field(dev, MT_BEACON_TIME_CFG, MT_BEACON_TIME_CFG_INTVAL, info->beacon_int << 4); + dev->beacon_int = info->beacon_int; + dev->tbtt_count = 0; + } if (changed & BSS_CHANGED_BEACON_ENABLED) { tasklet_disable(&dev->pre_tbtt_tasklet); |