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wifi: rtw89: reset AFEDIG register in power off sequence

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Some Wi-Fi chips meet card lost issue due to unstable hardware signal of
GPIO pins during power off. Reset AFEDIG register before BB reset in
power off sequence could avoid unstable signal and fix the issue.

Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240426061200.44262-1-pkshih@realtek.com
This commit is contained in:
Chin-Yen Lee
2024-04-26 14:11:59 +08:00
committed by Ping-Ke Shih
parent 014bba73b5
commit 535c045da6
3 changed files with 5 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/realtek/rtw89/rtw8851b.c
View File

@@ -2320,6 +2320,7 @@ static int rtw8851b_mac_disable_bb_rf(struct rtw89_dev *rtwdev)
u8 wl_rfc_s1;
int ret;
rtw89_write32_clr(rtwdev, R_AX_WLRF_CTRL, B_AX_AFC_AFEDIG);
rtw89_write8_clr(rtwdev, R_AX_SYS_FUNC_EN,
B_AX_FEN_BBRSTB | B_AX_FEN_BB_GLB_RSTN);

2
drivers/net/wireless/realtek/rtw89/rtw8852b.c
View File

@@ -562,6 +562,7 @@ static int rtw8852b_pwr_off_func(struct rtw89_dev *rtwdev)
return ret;
rtw89_write32_set(rtwdev, R_AX_SYS_PW_CTRL, B_AX_EN_WLON);
rtw89_write32_clr(rtwdev, R_AX_WLRF_CTRL, B_AX_AFC_AFEDIG);
rtw89_write8_clr(rtwdev, R_AX_SYS_FUNC_EN, B_AX_FEN_BB_GLB_RSTN | B_AX_FEN_BBRSTB);
rtw89_write32_clr(rtwdev, R_AX_SYS_ADIE_PAD_PWR_CTRL, B_AX_SYM_PADPDN_WL_RFC_1P3);
@@ -2481,6 +2482,7 @@ static int rtw8852b_mac_disable_bb_rf(struct rtw89_dev *rtwdev)
u8 wl_rfc_s1;
int ret;
rtw89_write32_clr(rtwdev, R_AX_WLRF_CTRL, B_AX_AFC_AFEDIG);
rtw89_write8_clr(rtwdev, R_AX_SYS_FUNC_EN,
B_AX_FEN_BBRSTB | B_AX_FEN_BB_GLB_RSTN);

2
drivers/net/wireless/realtek/rtw89/rtw8852c.c
View File

@@ -338,6 +338,7 @@ static int rtw8852c_pwr_off_func(struct rtw89_dev *rtwdev)
return ret;
rtw89_write32_set(rtwdev, R_AX_SYS_PW_CTRL, B_AX_EN_WLON);
rtw89_write32_clr(rtwdev, R_AX_WLRF_CTRL, B_AX_AFC_AFEDIG);
rtw89_write8_clr(rtwdev, R_AX_SYS_FUNC_EN, B_AX_FEN_BB_GLB_RSTN | B_AX_FEN_BBRSTB);
rtw89_write32_clr(rtwdev, R_AX_SYS_ISO_CTRL_EXTEND,
B_AX_R_SYM_FEN_WLBBGLB_1 | B_AX_R_SYM_FEN_WLBBFUN_1);
@@ -2816,6 +2817,7 @@ static int rtw8852c_mac_enable_bb_rf(struct rtw89_dev *rtwdev)
static int rtw8852c_mac_disable_bb_rf(struct rtw89_dev *rtwdev)
{
rtw89_write32_clr(rtwdev, R_AX_WLRF_CTRL, B_AX_AFC_AFEDIG);
rtw89_write8_clr(rtwdev, R_AX_SYS_FUNC_EN,
B_AX_FEN_BBRSTB | B_AX_FEN_BB_GLB_RSTN);