diff options
| author | David Lee <sc.lee@realtek.com> | 2026-07-17 14:19:04 +0800 |
|---|---|---|
| committer | Ping-Ke Shih <pkshih@realtek.com> | 2026-07-24 10:34:51 +0800 |
| commit | 355626a2c23271bfbb9accaf372d89557b0d64ba (patch) | |
| tree | ad1e3359ba089801b99d4c1f014014f7947de7eb | |
| parent | 721d90c8509aee195c3714b70c4cff612fbb3a1c (diff) | |
| download | linux-next-355626a2c23271bfbb9accaf372d89557b0d64ba.tar.gz linux-next-355626a2c23271bfbb9accaf372d89557b0d64ba.zip | |
wifi: rtw89: 8852cu: add quirk to disable 2.4 GHz band
Add RTW89_QUIRK_DISABLE_2GHZ to the rtw89_quirks enum to allow
per-device suppression of the 2.4 GHz band.
Apply the quirk only for the 0x28de:0x2432 (VID:PID) USB device,
which operates only in 5/6 GHz bands.
Signed-off-by: David Lee <sc.lee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260717061910.54466-4-pkshih@realtek.com
| -rw-r--r-- | drivers/net/wireless/realtek/rtw89/core.c | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/realtek/rtw89/core.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/realtek/rtw89/rtw8852cu.c | 3 |
3 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c index b87a72700b99..77a0e2582dbe 100644 --- a/drivers/net/wireless/realtek/rtw89/core.c +++ b/drivers/net/wireless/realtek/rtw89/core.c @@ -6418,6 +6418,9 @@ static int rtw89_core_set_supported_band(struct rtw89_dev *rtwdev) u8 support_bands = rtwdev->chip->support_bands; int ret; + if (test_bit(RTW89_QUIRK_DISABLE_2GHZ, rtwdev->quirks)) + support_bands &= ~BIT(NL80211_BAND_2GHZ); + if (support_bands & BIT(NL80211_BAND_2GHZ)) { sband = rtw89_core_sband_dup(rtwdev, &rtw89_sband_2ghz); if (!sband) diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h index 70cf6cbf4e8a..9d782cbfee70 100644 --- a/drivers/net/wireless/realtek/rtw89/core.h +++ b/drivers/net/wireless/realtek/rtw89/core.h @@ -6057,6 +6057,7 @@ enum rtw89_quirks { RTW89_QUIRK_THERMAL_PROT_120C, RTW89_QUIRK_THERMAL_PROT_110C, RTW89_QUIRK_HW_INFO_SYSFS, + RTW89_QUIRK_DISABLE_2GHZ, NUM_OF_RTW89_QUIRKS, }; diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852cu.c b/drivers/net/wireless/realtek/rtw89/rtw8852cu.c index 51dd8fb05366..2dec9b845481 100644 --- a/drivers/net/wireless/realtek/rtw89/rtw8852cu.c +++ b/drivers/net/wireless/realtek/rtw89/rtw8852cu.c @@ -97,7 +97,8 @@ static const struct rtw89_driver_info rtw89_8852cu_valve_info = { .variant = NULL, .board = &rtw89_8852cu_valve_board, .quirks = NULL, - .dev_id_quirks = BIT(RTW89_QUIRK_HW_INFO_SYSFS), + .dev_id_quirks = BIT(RTW89_QUIRK_HW_INFO_SYSFS) | + BIT(RTW89_QUIRK_DISABLE_2GHZ), .bus = { .usb = &rtw8852c_usb_info, }, |