Commit 7eb1e5d8 authored Jun 05, 2023 by Paul Fertser Committed by sanglipeng Feb 22, 2024

wifi: mt76: mt7615: do not advertise 5 GHz on first phy of MT7615D (DBDC)

stable inclusion
from stable-v5.10.190
commit c0e7123e896acc122edbcb81ee16ea28ef09a492
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I928UI

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=c0e7123e896acc122edbcb81ee16ea28ef09a492



--------------------------------

[ Upstream commit 421033de ]

On DBDC devices the first (internal) phy is only capable of using
2.4 GHz band, and the 5 GHz band is exposed via a separate phy object,
so avoid the false advertising.

Reported-by: Rani Hod <rani.hod@gmail.com>
Closes: https://github.com/openwrt/openwrt/pull/12361


Fixes: 7660a1bd ("mt76: mt7615: register ext_phy if DBDC is detected")
Cc: stable@vger.kernel.org
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230605073408.8699-1-fercerpav@gmail.com


Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>

parent 80e0b484

drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -123,12 +123,12 @@ mt7615_eeprom_parse_hw_band_cap(struct mt7615_dev *dev)
		case MT_EE_5GHZ:
		dev->mphy.cap.has_5ghz = true;
		break;
		case MT_EE_2GHZ:
		dev->mphy.cap.has_2ghz = true;
		break;
		case MT_EE_DBDC:
		dev->dbdc_support = true;
		fallthrough;
		case MT_EE_2GHZ:
		dev->mphy.cap.has_2ghz = true;
		break;
		default:
		dev->mphy.cap.has_2ghz = true;
		dev->mphy.cap.has_5ghz = true;