[PATCH 6.19 275/844] wifi: rtw89: wow: add reason codes for disassociation in WoWLAN mode

[Sasha Levin]

From: Chin-Yen Lee <timlee@xxxxxxxxxxx>

[ Upstream commit 2fd8f953f25173d14981d8736b6f5bfcd757e51b ]

Some APs disconnect clients by sending a Disassociation frame
rather than a Deauthentication frame. Since these frames use
different reason codes in WoWLAN mode, this commit adds support
for handling Disassociation to prevent missed disconnection events.

Signed-off-by: Chin-Yen Lee <timlee@xxxxxxxxxxx>
Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
Link: https://patch.msgid.link/20260110022019.2254969-3-pkshih@xxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/wireless/realtek/rtw89/wow.c | 4 ++++
 drivers/net/wireless/realtek/rtw89/wow.h | 1 +
 2 files changed, 5 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw89/wow.c b/drivers/net/wireless/realtek/rtw89/wow.c
index 46aba4cb2ee9e..534966b4d9c43 100644
--- a/drivers/net/wireless/realtek/rtw89/wow.c
+++ b/drivers/net/wireless/realtek/rtw89/wow.c
@@ -809,6 +809,10 @@ static void rtw89_wow_show_wakeup_reason(struct rtw89_dev *rtwdev)
 
 	reason = rtw89_read8(rtwdev, wow_reason_reg);
 	switch (reason) {
+	case RTW89_WOW_RSN_RX_DISASSOC:
+		wakeup.disconnect = true;
+		rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx disassoc\n");
+		break;
 	case RTW89_WOW_RSN_RX_DEAUTH:
 		wakeup.disconnect = true;
 		rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx deauth\n");
diff --git a/drivers/net/wireless/realtek/rtw89/wow.h b/drivers/net/wireless/realtek/rtw89/wow.h
index d2ba6cebc2a6b..71e07f482174f 100644
--- a/drivers/net/wireless/realtek/rtw89/wow.h
+++ b/drivers/net/wireless/realtek/rtw89/wow.h
@@ -33,6 +33,7 @@
 enum rtw89_wake_reason {
 	RTW89_WOW_RSN_RX_PTK_REKEY = 0x1,
 	RTW89_WOW_RSN_RX_GTK_REKEY = 0x2,
+	RTW89_WOW_RSN_RX_DISASSOC = 0x4,
 	RTW89_WOW_RSN_RX_DEAUTH = 0x8,
 	RTW89_WOW_RSN_DISCONNECT = 0x10,
 	RTW89_WOW_RSN_RX_MAGIC_PKT = 0x21,
-- 
2.51.0