Revert "qcacld-3.0: Idle shutdown in suspend"

This reverts commit I08818517d05e7866d50e3f92cfdc9fa1a4d0e63f.

New solution idle shutdown in suspend prepare is better.

Change-Id: I76b1ef8e6f945bbcba3955ff625484ebee727670
CRs-Fixed: 3213236

components/pmo/dispatcher/inc/wlan_pmo_common_public_struct.h

@@ -175,13 +175,13 @@ enum powersave_mode {
  * @PMO_SUSPEND_NONE: Does not support suspend
  * @PMO_SUSPEND_LEGENCY: Legency PDEV suspend mode
  * @PMO_SUSPEND_WOW: WoW suspend mode
- * @PMO_SUSPEND_SHUTDOWN: Shutdown suspend mode. Shutdown while suspend
+ * @PMO_FULL_POWER_DOWN: Full power down while suspend
  */
 enum pmo_suspend_mode {
 	PMO_SUSPEND_NONE = 0,
 	PMO_SUSPEND_LEGENCY,
 	PMO_SUSPEND_WOW,
-	PMO_SUSPEND_SHUTDOWN
+	PMO_FULL_POWER_DOWN
 };
 
 #define PMO_TARGET_SUSPEND_TIMEOUT   (4000)

core/hdd/inc/wlan_hdd_main.h

@@ -2113,9 +2113,6 @@ struct hdd_context {
 	/* Flag keeps track of wiphy suspend/resume */
 	bool is_wiphy_suspended;
 
-	/* Flag keeps track of idle shutdown triggered by suspend */
-	bool shutdown_in_suspend;
-
 #ifdef WLAN_FEATURE_DP_BUS_BANDWIDTH
 	struct qdf_periodic_work bus_bw_work;
 	int cur_vote_level;
@@ -5442,14 +5439,6 @@ static inline int hdd_set_suspend_mode(struct hdd_context *hdd_ctx)
 	return 0;
 }
 #endif
-/*
- * hdd_shutdown_wlan_in_suspend: shutdown wlan chip when suspend called
- * @hdd_ctx: HDD context
- *
- * this function called by __wlan_hdd_cfg80211_suspend_wlan(), and it
- * schedule idle shutdown work queue when no interface open.
- */
-void hdd_shutdown_wlan_in_suspend(struct hdd_context *hdd_ctx);
 
 #define HDD_DATA_STALL_ENABLE      BIT(0)
 #define HDD_HOST_STA_TX_TIMEOUT    BIT(16)

core/hdd/src/wlan_hdd_main.c

@@ -18915,23 +18915,6 @@ int hdd_set_suspend_mode(struct hdd_context *hdd_ctx)
 }
 #endif
 
-void hdd_shutdown_wlan_in_suspend(struct hdd_context *hdd_ctx)
-{
-/* schedule timeout cb as soon as possible */
-#define SHUTDOWN_IN_SUSPEND_WAIT_TIMEOUT 0
-/* prevent system suspend to let shutdown_restart work can be invoked */
-#define SHUTDOWN_IN_SUSPEND_PREVENT_TIMEOUT 5
-
-	if (!hdd_is_any_interface_open(hdd_ctx)) {
-		qdf_delayed_work_start(&hdd_ctx->psoc_idle_timeout_work,
-				       SHUTDOWN_IN_SUSPEND_WAIT_TIMEOUT);
-		hdd_prevent_suspend_timeout(SHUTDOWN_IN_SUSPEND_PREVENT_TIMEOUT,
-				WIFI_POWER_EVENT_WAKELOCK_DRIVER_IDLE_SHUTDOWN);
-	} else {
-		hdd_err("some adapter not stopped");
-	}
-}
-
 int hdd_driver_load(void)
 {
 	struct osif_driver_sync *driver_sync;

core/hdd/src/wlan_hdd_power.c

@@ -2469,7 +2469,6 @@ static int __wlan_hdd_cfg80211_suspend_wlan(struct wiphy *wiphy,
 	int rc;
 	wlan_net_dev_ref_dbgid dbgid = NET_DEV_HOLD_CFG80211_SUSPEND_WLAN;
 	struct hdd_hostapd_state *hapd_state;
-	enum pmo_suspend_mode suspend_mode;
 	struct csr_del_sta_params params = {
 		.peerMacAddr = QDF_MAC_ADDR_BCAST_INIT,
 		.reason_code = REASON_DEAUTH_NETWORK_LEAVING,
@@ -2493,20 +2492,14 @@ static int __wlan_hdd_cfg80211_suspend_wlan(struct wiphy *wiphy,
 			return rc;
 	}
 
-	suspend_mode = ucfg_pmo_get_suspend_mode(hdd_ctx->psoc);
-	if (suspend_mode == PMO_SUSPEND_NONE) {
+	if (ucfg_pmo_get_suspend_mode(hdd_ctx->psoc) == PMO_SUSPEND_NONE) {
 		hdd_info_rl("Suspend is not supported");
 		return -EINVAL;
 	}
 
-	if (suspend_mode == PMO_SUSPEND_SHUTDOWN) {
-		hdd_info_rl("Shutdown WLAN in Suspend");
-		hdd_ctx->shutdown_in_suspend = true;
-		hdd_shutdown_wlan_in_suspend(hdd_ctx);
-		/* shutdown must be excute in active, so return -EAGAIN
-		 * to PM to exit and try again
-		 */
-		return -EAGAIN;
+	if (wlan_hdd_is_full_power_down_enable(hdd_ctx)) {
+		hdd_debug("Driver will be shutdown; Skipping suspend");
+		return 0;
 	}
 
 	if (hdd_ctx->driver_status != DRIVER_MODULES_ENABLED) {
@@ -2737,8 +2730,7 @@ static int _wlan_hdd_cfg80211_suspend_wlan(struct wiphy *wiphy,
 
 	/* If Wifi is off, return success for system suspend */
 	if (hdd_ctx->driver_status != DRIVER_MODULES_ENABLED) {
-		hdd_info("Driver Modules not Enabled");
-		hdd_ctx->shutdown_in_suspend = false;
+		hdd_debug("Driver Modules not Enabled ");
 		return 0;
 	}
 
@@ -2787,8 +2779,7 @@ int wlan_hdd_cfg80211_suspend_wlan(struct wiphy *wiphy,
 	 * the deadlock as idle shutdown waits for the dsc ops
 	 * to complete.
 	 */
-	if (!hdd_ctx->shutdown_in_suspend)
-		hdd_psoc_idle_timer_stop(hdd_ctx);
+	hdd_psoc_idle_timer_stop(hdd_ctx);
 
 	errno = osif_psoc_sync_op_start(wiphy_dev(wiphy), &psoc_sync);
 	if (errno)