4.20-stable review patch. If anyone has any objections, please let me know. ------------------ From: Stanislaw Gruszka <sgruszka@xxxxxxxxxx> commit a83150eaad42769e4d08b6e07956a489e40214ae upstream. Driver works better for MT7630 without MCU calibration, which looks like it can hangs the firmware. Vendor driver do not perform it for MT7630 as well. Signed-off-by: Felix Fietkau <nbd@xxxxxxxx> Signed-off-by: Stanislaw Gruszka <sgruszka@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h | 5 +++++ drivers/net/wireless/mediatek/mt76/mt76x0/phy.c | 3 +++ 2 files changed, 8 insertions(+) --- a/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h @@ -41,6 +41,11 @@ static inline bool is_mt7610e(struct mt7 void mt76x0_init_debugfs(struct mt76x02_dev *dev); +static inline bool is_mt7630(struct mt76x02_dev *dev) +{ + return mt76_chip(&dev->mt76) == 0x7630; +} + /* Init */ struct mt76x02_dev * mt76x0_alloc_device(struct device *pdev, --- a/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c @@ -588,6 +588,9 @@ void mt76x0_phy_calibrate(struct mt76x02 int is_5ghz = (chan->band == NL80211_BAND_5GHZ) ? 1 : 0; u32 val, tx_alc, reg_val; + if (is_mt7630(dev)) + return; + if (power_on) { mt76x02_mcu_calibrate(dev, MCU_CAL_R, 0, false); mt76x02_mcu_calibrate(dev, MCU_CAL_VCO, chan->hw_value,