From 041f865f676b07208e56c3dcc5555e45ca1e510b Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Tue, 13 Aug 2019 15:36:56 +0200 Subject: [PATCH] mt76: mt76x0e: disable 5GHz band for MT7630E commit 70702265a04aa0ce5a7bde77d13456209992b32f upstream. MT7630E hardware does support 5GHz, but we do not properly configure phy for 5GHz channels. Scanning at this band not only do not show any APs but also can hang the firmware. Since vendor reference driver do not support 5GHz we don't know how properly configure 5GHz channels. So disable this band for MT7630E . Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.c index 40c0d536e20d0..9d4426f6905f2 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.c @@ -59,6 +59,11 @@ static void mt76x0_set_chip_cap(struct mt76x02_dev *dev) dev_dbg(dev->mt76.dev, "mask out 2GHz support\n"); } + if (is_mt7630(dev)) { + dev->mt76.cap.has_5ghz = false; + dev_dbg(dev->mt76.dev, "mask out 5GHz support\n"); + } + if (!mt76x02_field_valid(nic_conf1 & 0xff)) nic_conf1 &= 0xff00; -- 2.50.1