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authorStanislaw Gruszka <sgruszka@redhat.com>2018-11-01 16:35:01 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-01-31 08:15:46 +0100
commit1101ce4ab3c3467246ded46c4eed27fd00bba7a6 (patch)
tree0e2a3e437269c259cddb60fbfe653bcf4dd16d0c
parentee21042f9c6bed1a1ac146b003ef95afb8581904 (diff)
mt76x02: run calibration after scanning
commit f1b8ee35fec4a070b7760a99709fc98f237c2b86 upstream. If we are associated and scanning is performed, sw_scan_complete callback is done after we get back to operating channel, so we do not perform queue cal work. Fix this queue cal work from sw_scan_complete(). On mt76x0 we have to restore gain in MT_BBP(AGC, 8) register after scanning, as it was multiple times modified by channel switch code. So queue cal work without any delay to set AGC gain value. Similar like in mt76x2 init AGC gain only when set operating channel and just check before queuing cal work in sw_scan_complete() if initialization was already done. Fixes: bbd10586f0df ("mt76x0: phy: do not run calibration during channel switch") Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt76x0/main.c3
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt76x0/phy.c2
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt76x02.h1
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt76x02_phy.c1
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c3
5 files changed, 9 insertions, 1 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/main.c b/drivers/net/wireless/mediatek/mt76/mt76x0/main.c
index 9273d2d2764a..205c3afe2aeb 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x0/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/main.c
@@ -138,6 +138,9 @@ void mt76x0_sw_scan_complete(struct ieee80211_hw *hw,
struct mt76x02_dev *dev = hw->priv;
clear_bit(MT76_SCANNING, &dev->mt76.state);
+
+ if (dev->cal.gain_init_done)
+ ieee80211_queue_delayed_work(hw, &dev->cal_work, 0);
}
EXPORT_SYMBOL_GPL(mt76x0_sw_scan_complete);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c b/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c
index b1314c0f74c8..771e54b39abf 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c
@@ -720,7 +720,6 @@ int mt76x0_phy_set_channel(struct mt76x02_dev *dev,
mt76x0_read_rx_gain(dev);
mt76x0_phy_set_chan_bbp_params(dev, rf_bw_band);
- mt76x02_init_agc_gain(dev);
if (mt76_is_usb(dev)) {
mt76x0_vco_cal(dev, channel);
@@ -732,6 +731,7 @@ int mt76x0_phy_set_channel(struct mt76x02_dev *dev,
if (scan)
return 0;
+ mt76x02_init_agc_gain(dev);
if (mt76_is_mmio(dev))
mt76x0_phy_calibrate(dev, false);
mt76x0_phy_set_txpower(dev);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02.h b/drivers/net/wireless/mediatek/mt76/mt76x02.h
index 7806963b1905..9a5ae5c06840 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02.h
@@ -63,6 +63,7 @@ struct mt76x02_calibration {
bool tssi_comp_pending;
bool dpd_cal_done;
bool channel_cal_done;
+ bool gain_init_done;
};
struct mt76x02_dev {
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_phy.c b/drivers/net/wireless/mediatek/mt76/mt76x02_phy.c
index 0f1d7b5c9f68..977a8e7e26df 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_phy.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_phy.c
@@ -254,5 +254,6 @@ void mt76x02_init_agc_gain(struct mt76x02_dev *dev)
memcpy(dev->cal.agc_gain_cur, dev->cal.agc_gain_init,
sizeof(dev->cal.agc_gain_cur));
dev->cal.low_gain = -1;
+ dev->cal.gain_init_done = true;
}
EXPORT_SYMBOL_GPL(mt76x02_init_agc_gain);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c
index 1971a1b00038..9471b44ce558 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c
@@ -156,6 +156,9 @@ mt76x2u_sw_scan_complete(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
struct mt76x02_dev *dev = hw->priv;
clear_bit(MT76_SCANNING, &dev->mt76.state);
+
+ if (dev->cal.gain_init_done)
+ ieee80211_queue_delayed_work(hw, &dev->cal_work, 0);
}
const struct ieee80211_ops mt76x2u_ops = {