Add hw-restart to directly restart wlan. Like UTF mode start it will
restart hardware and download firmware again.
Usage:
1. Run command:
echo hw-restart > /sys/kernel/debug/ath11k/qca6390\ hw2.0/simulate_fw_crash
echo hw-restart > /sys/kernel/debug/ath11k/wcn6855\ hw2.0/simulate_fw_crash
2. wlan will be restart and do recovery process and success.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2
Signed-off-by: Wen Gong <quic_wgong@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath11k/debugfs.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/wireless/ath/ath11k/debugfs.c b/drivers/net/wireless/ath/ath11k/debugfs.c
index c0ebdb1262f0..7375defb0f23 100644
--- a/drivers/net/wireless/ath/ath11k/debugfs.c
+++ b/drivers/net/wireless/ath/ath11k/debugfs.c
@@ -557,6 +557,10 @@ static ssize_t ath11k_write_simulate_fw_crash(struct file *file,
ret = ath11k_wmi_force_fw_hang_cmd(ar,
ATH11K_WMI_FW_HANG_ASSERT_TYPE,
ATH11K_WMI_FW_HANG_DELAY);
+ } else if (!strcmp(buf, "hw-restart")) {
+ ath11k_info(ab, "user requested hw restart\n");
+ queue_work(ab->workqueue_aux, &ab->reset_work);
+ ret = 0;
} else {
ret = -EINVAL;
goto exit;
--
2.31.1
