[PATCH] rtw88: coex: add power off setting

[PATCH] rtw88: coex: add power off setting

[Ping-Ke Shih]

Clear WL/BT on/off bit in scoreboard register that is used to exchange
WL/BT status. Since the status is preserved after warm reboot, we must
clear it when WL is going to down.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw88/coex.c | 5 +++++
 drivers/net/wireless/realtek/rtw88/coex.h | 1 +
 drivers/net/wireless/realtek/rtw88/main.c | 1 +
 3 files changed, 7 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw88/coex.c b/drivers/net/wireless/realtek/rtw88/coex.c
index ea2be1e25065..7eee2c5ecb11 100644
--- a/drivers/net/wireless/realtek/rtw88/coex.c
+++ b/drivers/net/wireless/realtek/rtw88/coex.c
@@ -2646,6 +2646,11 @@ void rtw_coex_power_on_setting(struct rtw_dev *rtwdev)
 	rtw_coex_set_gnt_debug(rtwdev);
 }
 
+void rtw_coex_power_off_setting(struct rtw_dev *rtwdev)
+{
+	rtw_write16(rtwdev, REG_WIFI_BT_INFO, BIT_BT_INT_EN);
+}
+
 void rtw_coex_init_hw_config(struct rtw_dev *rtwdev, bool wifi_only)
 {
 	__rtw_coex_init_hw_config(rtwdev, wifi_only);
diff --git a/drivers/net/wireless/realtek/rtw88/coex.h b/drivers/net/wireless/realtek/rtw88/coex.h
index 8ab9852ec9ed..57018700ac39 100644
--- a/drivers/net/wireless/realtek/rtw88/coex.h
+++ b/drivers/net/wireless/realtek/rtw88/coex.h
@@ -393,6 +393,7 @@ void rtw_coex_bt_multi_link_remain_work(struct work_struct *work);
 void rtw_coex_wl_ccklock_work(struct work_struct *work);
 
 void rtw_coex_power_on_setting(struct rtw_dev *rtwdev);
+void rtw_coex_power_off_setting(struct rtw_dev *rtwdev);
 void rtw_coex_init_hw_config(struct rtw_dev *rtwdev, bool wifi_only);
 void rtw_coex_ips_notify(struct rtw_dev *rtwdev, u8 type);
 void rtw_coex_lps_notify(struct rtw_dev *rtwdev, u8 type);
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index e6989c0525cc..d20aa069d62a 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -1138,6 +1138,7 @@ int rtw_core_start(struct rtw_dev *rtwdev)
 static void rtw_power_off(struct rtw_dev *rtwdev)
 {
 	rtw_hci_stop(rtwdev);
+	rtw_coex_power_off_setting(rtwdev);
 	rtw_mac_power_off(rtwdev);
 }
 
-- 
2.21.0

Re: [PATCH] rtw88: coex: add power off setting

[Kalle Valo]

Ping-Ke Shih <pkshih@realtek.com> wrote:

> Clear WL/BT on/off bit in scoreboard register that is used to exchange
> WL/BT status. Since the status is preserved after warm reboot, we must
> clear it when WL is going to down.
> 
> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>

Patch applied to wireless-drivers-next.git, thanks.

5b492c7dbdda rtw88: coex: add power off setting

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20210219054140.7835-1-pkshih@realtek.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches