[PATCH 5.3] mt76: mt76x0e: disable 5GHz band for MT7630E

* [PATCH 5.3] mt76: mt76x0e: disable 5GHz band for MT7630E
@ 2019-08-13 13:36 Stanislaw Gruszka
       [not found] ` <20190813175526.CCBC220840@mail.kernel.org>
  2019-09-03 13:49 ` Kalle Valo
  0 siblings, 2 replies; 3+ messages in thread
From: Stanislaw Gruszka @ 2019-08-13 13:36 UTC (permalink / raw)
  To: linux-wireless; +Cc: Felix Fietkau, Lorenzo Bianconi, Ryder Lee, Roy Luo

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 <sgruszka@redhat.com>
---
 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 ab6dfc026acb..36918b1bd653 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.c
@@ -67,6 +67,11 @@ 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;
 
-- 
1.9.3


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