wifi: rtw89: move enable_cpu/disable_cpu into fw_download

For WoWLAN mode, we need to download WoWLAN firmware by calling
fw_download(). Another, to disable/enable WiFi CPU is needed before
calling fw_download. Since Firmware runs on WiFi CPU, it is intuitive
to combine enable_cpu/disable_cpu functions into fw_download.

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221027052707.14605-3-pkshih@realtek.com

drivers/net/wireless/realtek/rtw89/fw.c

@@ -531,6 +531,11 @@ int rtw89_fw_download(struct rtw89_dev *rtwdev, enum rtw89_fw_type type)
 	u8 val;
 	int ret;
 
+	rtw89_mac_disable_cpu(rtwdev);
+	ret = rtw89_mac_enable_cpu(rtwdev, 0, true);
+	if (ret)
+		return ret;
+
 	if (!fw || !len) {
 		rtw89_err(rtwdev, "fw type %d isn't recognized\n", type);
 		return -ENOENT;

drivers/net/wireless/realtek/rtw89/mac.c

@@ -3116,7 +3116,7 @@ static void rtw89_disable_fw_watchdog(struct rtw89_dev *rtwdev)
 	rtw89_mac_mem_write(rtwdev, R_AX_WDT_STATUS, val32, RTW89_MAC_MEM_CPU_LOCAL);
 }
 
-static void rtw89_mac_disable_cpu(struct rtw89_dev *rtwdev)
+void rtw89_mac_disable_cpu(struct rtw89_dev *rtwdev)
 {
 	clear_bit(RTW89_FLAG_FW_RDY, rtwdev->flags);
 
@@ -3131,8 +3131,7 @@ static void rtw89_mac_disable_cpu(struct rtw89_dev *rtwdev)
 	rtw89_write32_set(rtwdev, R_AX_PLATFORM_ENABLE, B_AX_PLATFORM_EN);
 }
 
-static int rtw89_mac_enable_cpu(struct rtw89_dev *rtwdev, u8 boot_reason,
-				bool dlfw)
+int rtw89_mac_enable_cpu(struct rtw89_dev *rtwdev, u8 boot_reason, bool dlfw)
 {
 	u32 val;
 	int ret;
@@ -3271,11 +3270,6 @@ int rtw89_mac_partial_init(struct rtw89_dev *rtwdev)
 			return ret;
 	}
 
-	rtw89_mac_disable_cpu(rtwdev);
-	ret = rtw89_mac_enable_cpu(rtwdev, 0, true);
-	if (ret)
-		return ret;
-
 	ret = rtw89_fw_download(rtwdev, RTW89_FW_NORMAL);
 	if (ret)
 		return ret;

drivers/net/wireless/realtek/rtw89/mac.h

@@ -815,6 +815,8 @@ int rtw89_mac_port_update(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif);
 void rtw89_mac_set_he_obss_narrow_bw_ru(struct rtw89_dev *rtwdev,
 					struct ieee80211_vif *vif);
 int rtw89_mac_remove_vif(struct rtw89_dev *rtwdev, struct rtw89_vif *vif);
+void rtw89_mac_disable_cpu(struct rtw89_dev *rtwdev);
+int rtw89_mac_enable_cpu(struct rtw89_dev *rtwdev, u8 boot_reason, bool dlfw);
 int rtw89_mac_enable_bb_rf(struct rtw89_dev *rtwdev);
 int rtw89_mac_disable_bb_rf(struct rtw89_dev *rtwdev);