From: Kalpesh Solanki <skalpesh942@gmail.com>
To: pkshih@realtek.com, kvalo@kernel.org
Cc: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org,
Kalpesh Solanki <skalpesh942@gmail.com>
Subject: [PATCH v2 2/2] wifi: rtw88: ps: Trigger firmware recovery when failing to leave LPS state
Date: Tue, 3 Nov 2026 08:44:34 +0530 [thread overview]
Message-ID: <20261103031434.14449-2-skalpesh942@gmail.com> (raw)
In-Reply-To: <20261103031434.14449-1-skalpesh942@gmail.com>
When rtw_fw_leave_lps_check() fails, the firmware has locked up or
failed to exit its low power state. Currently, the driver only logs
'firmware failed to leave lps state' and clears REG_TCR, leaving the
hardware in an unresponsive state where subsequent H2C commands fail
and TX traffic hangs indefinitely.
Call rtw_fw_recovery() when rtw_fw_leave_lps_check() fails so the driver
can automatically reset the hardware and re-sync without requiring manual
user intervention.
Signed-off-by: Kalpesh Solanki <skalpesh942@gmail.com>
---
v2:
- Rebase onto rtw-next.
drivers/net/wireless/realtek/rtw88/ps.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/wireless/realtek/rtw88/ps.c b/drivers/net/wireless/realtek/rtw88/ps.c
index add5a20b843..8dba60f3464 100644
--- a/drivers/net/wireless/realtek/rtw88/ps.c
+++ b/drivers/net/wireless/realtek/rtw88/ps.c
@@ -166,6 +166,7 @@ static void rtw_fw_leave_lps_check(struct rtw_dev *rtwdev)
rtw_write32_clr(rtwdev, REG_TCR, BIT_PWRMGT_HWDATA_EN);
rtw_warn(rtwdev, "firmware failed to leave lps state\n");
rtw_fw_dump_dbg_info(rtwdev);
+ rtw_fw_recovery(rtwdev);
}
}
--
2.53.0
next prev parent reply other threads:[~2026-11-03 3:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-03 3:14 [PATCH v2 1/2] wifi: rtw88: pci: Add DMI quirk for HP Laptop 15s-fr5xxx Kalpesh Solanki
2026-11-03 3:14 ` Kalpesh Solanki [this message]
2026-11-03 3:17 ` [PATCH v2 2/2] wifi: rtw88: ps: Trigger firmware recovery when failing to leave LPS state Ping-Ke Shih
2026-11-03 5:54 ` [PATCH v2 1/2] wifi: rtw88: pci: Add DMI quirk for HP Laptop 15s-fr5xxx Ping-Ke Shih
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