6.8-stable review patch. If anyone has any objections, please let me know.
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From: Bitterblue Smith rtl8821cerfe2@gmail.com
commit 605d7c0b05eecb985273b1647070497142c470d3 upstream.
Clear bit 8 of REG_SYS_STATUS1 after MAC power on.
Without this, some RTL8821CU and RTL8811CU cannot connect to any network:
Feb 19 13:33:11 ideapad2 kernel: wlp3s0f3u2: send auth to 90:55:de:__:__:__ (try 1/3) Feb 19 13:33:13 ideapad2 kernel: wlp3s0f3u2: send auth to 90:55:de:__:__:__ (try 2/3) Feb 19 13:33:14 ideapad2 kernel: wlp3s0f3u2: send auth to 90:55:de:__:__:__ (try 3/3) Feb 19 13:33:15 ideapad2 kernel: wlp3s0f3u2: authentication with 90:55:de:__:__:__ timed out
The RTL8822CU and RTL8822BU out-of-tree drivers do this as well, so do it for all three types of chips.
Tested with RTL8811CU (Tenda U9 V2.0).
Signed-off-by: Bitterblue Smith rtl8821cerfe2@gmail.com Acked-by: Ping-Ke Shih pkshih@realtek.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://msgid.link/aeeefad9-27c8-4506-a510-ef9a9a8731a4@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/wireless/realtek/rtw88/mac.c | 7 +++++++ 1 file changed, 7 insertions(+)
--- a/drivers/net/wireless/realtek/rtw88/mac.c +++ b/drivers/net/wireless/realtek/rtw88/mac.c @@ -309,6 +309,13 @@ static int rtw_mac_power_switch(struct r pwr_seq = pwr_on ? chip->pwr_on_seq : chip->pwr_off_seq; ret = rtw_pwr_seq_parser(rtwdev, pwr_seq);
+ if (pwr_on && rtw_hci_type(rtwdev) == RTW_HCI_TYPE_USB) { + if (chip->id == RTW_CHIP_TYPE_8822C || + chip->id == RTW_CHIP_TYPE_8822B || + chip->id == RTW_CHIP_TYPE_8821C) + rtw_write8_clr(rtwdev, REG_SYS_STATUS1 + 1, BIT(0)); + } + if (rtw_hci_type(rtwdev) == RTW_HCI_TYPE_SDIO) rtw_write32(rtwdev, REG_SDIO_HIMR, imr);