staging: wilc1000: remove manual sleep mode

manual sleep mode was used to put the wilc1000 chip in sleep while in
disconnected state. This is taken care of in the firmware
Signed-off-by: Adham Abozaeid <adham.abozaeid@microchip.com>
Link: https://lore.kernel.org/r/20190725213125.2810-7-adham.abozaeid@microchip.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/wilc_hif.c

@@ -1056,13 +1056,9 @@ static void handle_scan_timer(struct work_struct *work)
 static void handle_scan_complete(struct work_struct *work)
 {
 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
-	struct wilc *wilc = msg->vif->wilc;
 
 	del_timer(&msg->vif->hif_drv->scan_timer);
 
-	if (!wilc_wlan_get_num_conn_ifcs(wilc))
-		wilc_chip_sleep_manually(wilc);
-
 	handle_scan_done(msg->vif, SCAN_EVENT_DONE);
 
 	kfree(msg);

drivers/staging/wilc1000/wilc_sdio.c

@@ -193,9 +193,7 @@ static int wilc_sdio_suspend(struct device *dev)
 	dev_info(dev, "sdio suspend\n");
 	chip_wakeup(wilc);
 
-	if (!wilc->suspend_event) {
-		wilc_chip_sleep_manually(wilc);
-	} else {
+	if (wilc->suspend_event) {
 		host_sleep_notify(wilc);
 		chip_allow_sleep(wilc);
 	}

drivers/staging/wilc1000/wilc_wlan.c

@@ -455,20 +455,6 @@ void chip_wakeup(struct wilc *wilc)
 }
 EXPORT_SYMBOL_GPL(chip_wakeup);
 
-void wilc_chip_sleep_manually(struct wilc *wilc)
-{
-	if (wilc->chip_ps_state != WILC_CHIP_WAKEDUP)
-		return;
-	acquire_bus(wilc, WILC_BUS_ACQUIRE_ONLY);
-
-	chip_allow_sleep(wilc);
-	wilc->hif_func->hif_write_reg(wilc, 0x10a8, 1);
-
-	wilc->chip_ps_state = WILC_CHIP_SLEEPING_MANUAL;
-	release_bus(wilc, WILC_BUS_RELEASE_ONLY);
-}
-EXPORT_SYMBOL_GPL(wilc_chip_sleep_manually);
-
 void host_wakeup_notify(struct wilc *wilc)
 {
 	acquire_bus(wilc, WILC_BUS_ACQUIRE_ONLY);

drivers/staging/wilc1000/wilc_wlan.h

@@ -293,8 +293,6 @@ int wilc_wlan_cfg_get(struct wilc_vif *vif, int start, u16 wid, int commit,
 		      u32 drv_handler);
 int wilc_wlan_txq_add_mgmt_pkt(struct net_device *dev, void *priv, u8 *buffer,
 			       u32 buffer_size, void (*func)(void *, int));
-void wilc_chip_sleep_manually(struct wilc *wilc);
-
 void wilc_enable_tcp_ack_filter(struct wilc_vif *vif, bool value);
 int wilc_wlan_get_num_conn_ifcs(struct wilc *wilc);
 netdev_tx_t wilc_mac_xmit(struct sk_buff *skb, struct net_device *dev);