ath6kl: cut power during suspend
If sdio controller doesn't support keep power, cut power from hardware
during suspend and restart firmware during resume. If we are connected
during suspend, send a disconnected event to user space.
Earlier suspend failed with an error if sdio didn't support keep power.
Now suspend will happen succesfully even with that case.
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index 01e83c9..5dab4f2 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -1674,6 +1674,28 @@
ar->state = ATH6KL_STATE_DEEPSLEEP;
break;
+
+ case ATH6KL_CFG_SUSPEND_CUTPOWER:
+ if (ar->state == ATH6KL_STATE_OFF) {
+ ath6kl_dbg(ATH6KL_DBG_SUSPEND,
+ "suspend hw off, no action for cutpower\n");
+ break;
+ }
+
+ ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n");
+
+ ret = ath6kl_init_hw_stop(ar);
+ if (ret) {
+ ath6kl_warn("failed to stop hw during suspend: %d\n",
+ ret);
+ }
+
+ ar->state = ATH6KL_STATE_CUTPOWER;
+
+ break;
+
+ default:
+ break;
}
return 0;
@@ -1698,6 +1720,15 @@
break;
+ case ATH6KL_STATE_CUTPOWER:
+ ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n");
+
+ ret = ath6kl_init_hw_start(ar);
+ if (ret) {
+ ath6kl_warn("Failed to boot hw in resume: %d\n", ret);
+ return ret;
+ }
+
default:
break;
}