From: Raja Mani <rmani@xxxxxxxxxxxxxxxx>
ath6kl_wow_suspend() has to wait until get an
WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENT after sending
set host sleep mode command.
This wait creates perfect sync with the firmware before
the driver enter into wow suspend state.
Signed-off-by: Raja Mani <rmani@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath6kl/cfg80211.c | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index 038d63b..2d40fd0 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -1976,11 +1976,25 @@ skip_arp:
if (ret)
return ret;
+ clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
+
ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
ATH6KL_HOST_MODE_ASLEEP);
if (ret)
return ret;
+ left = wait_event_interruptible_timeout(ar->event_wq,
+ test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags),
+ WMI_TIMEOUT);
+ if (left == 0) {
+ ath6kl_warn("timeout, didn't get host sleep cmd processed event\n");
+ ret = -ETIMEDOUT;
+ } else if (left < 0) {
+ ath6kl_warn("error while waiting for host sleep cmd processed event %d\n",
+ left);
+ ret = left;
+ }
+
if (ar->tx_pending[ar->ctrl_ep]) {
left = wait_event_interruptible_timeout(ar->event_wq,
ar->tx_pending[ar->ctrl_ep] == 0, WMI_TIMEOUT);
--
1.7.1
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