wifi: rtw89: reset AFEDIG register in power off sequence

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

diff --git a/drivers/net/wireless/realtek/rtw89/rtw8851b.c b/drivers/net/wireless/realtek/rtw89/rtw8851b.c
index 2e89c18fbf19dcc5c794bf195a343145975bd8db..87b51823244dcf805fa26dae87c53363c50ccc47 100644 (file)
--- a/drivers/net/wireless/realtek/rtw89/rtw8851b.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8851b.c
@@ -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);
 

diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852b.c b/drivers/net/wireless/realtek/rtw89/rtw8852b.c
index 9b8f1d06512e82d82d86b15cf5f2e1ec7a0d0996..d351096fa4b413f2048dbb4259b80fb650543698 100644 (file)
--- a/drivers/net/wireless/realtek/rtw89/rtw8852b.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852b.c
@@ -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);
 

diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852c.c b/drivers/net/wireless/realtek/rtw89/rtw8852c.c
index db354afc486e85d892e0ffbd8a4fbf5592578d6f..efc772eb79a4a6b154cd278218279506f3b659cf 100644 (file)
--- a/drivers/net/wireless/realtek/rtw89/rtw8852c.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852c.c
@@ -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);