Adding upstream version 6.9.2.upstream/6.9.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

7 files changed, 163 insertions, 98 deletions

diff --git a/drivers/net/wireless/microchip/wilc1000/cfg80211.c b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
index f03fd15c0..089102ed9 100644
--- a/drivers/net/wireless/microchip/wilc1000/cfg80211.c
+++ b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
@@ -356,7 +356,7 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 			memcpy(vif->auth.ssid.ssid, sme->ssid, sme->ssid_len);
 			vif->auth.ssid.ssid_len = sme->ssid_len;
 		}
-		vif->auth.key_mgmt_suite = cpu_to_be32(sme->crypto.akm_suites[0]);
+		vif->auth.key_mgmt_suite = sme->crypto.akm_suites[0];
 		ether_addr_copy(vif->auth.bssid, sme->bssid);
 		break;
 
@@ -1518,7 +1518,7 @@ static struct wilc_vif *wilc_get_vif_from_type(struct wilc *wl, int type)
 {
 	struct wilc_vif *vif;
 
-	list_for_each_entry_rcu(vif, &wl->vif_list, list) {
+	wilc_for_each_vif(wl, vif) {
 		if (vif->iftype == type)
 			return vif;
 	}
diff --git a/drivers/net/wireless/microchip/wilc1000/hif.c b/drivers/net/wireless/microchip/wilc1000/hif.c
index d2b8c2630..f1085ccb7 100644
--- a/drivers/net/wireless/microchip/wilc1000/hif.c
+++ b/drivers/net/wireless/microchip/wilc1000/hif.c
@@ -107,7 +107,7 @@ static struct wilc_vif *wilc_get_vif_from_idx(struct wilc *wilc, int idx)
 	if (index < 0 || index >= WILC_NUM_CONCURRENT_IFC)
 		return NULL;
 
-	list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+	wilc_for_each_vif(wilc, vif) {
 		if (vif->idx == index)
 			return vif;
 	}
@@ -1567,26 +1567,28 @@ int wilc_deinit(struct wilc_vif *vif)
 
 void wilc_network_info_received(struct wilc *wilc, u8 *buffer, u32 length)
 {
-	int result;
-	struct host_if_msg *msg;
-	int id;
 	struct host_if_drv *hif_drv;
+	struct host_if_msg *msg;
 	struct wilc_vif *vif;
+	int srcu_idx;
+	int result;
+	int id;
 
 	id = get_unaligned_le32(&buffer[length - 4]);
+	srcu_idx = srcu_read_lock(&wilc->srcu);
 	vif = wilc_get_vif_from_idx(wilc, id);
 	if (!vif)
-		return;
-	hif_drv = vif->hif_drv;
+		goto out;
 
+	hif_drv = vif->hif_drv;
 	if (!hif_drv) {
 		netdev_err(vif->ndev, "driver not init[%p]\n", hif_drv);
-		return;
+		goto out;
 	}
 
 	msg = wilc_alloc_work(vif, handle_rcvd_ntwrk_info, false);
 	if (IS_ERR(msg))
-		return;
+		goto out;
 
 	msg->body.net_info.frame_len = get_unaligned_le16(&buffer[6]) - 1;
 	msg->body.net_info.rssi = buffer[8];
@@ -1595,7 +1597,7 @@ void wilc_network_info_received(struct wilc *wilc, u8 *buffer, u32 length)
 					  GFP_KERNEL);
 	if (!msg->body.net_info.mgmt) {
 		kfree(msg);
-		return;
+		goto out;
 	}
 
 	result = wilc_enqueue_work(msg);
@@ -1604,43 +1606,41 @@ void wilc_network_info_received(struct wilc *wilc, u8 *buffer, u32 length)
 		kfree(msg->body.net_info.mgmt);
 		kfree(msg);
 	}
+out:
+	srcu_read_unlock(&wilc->srcu, srcu_idx);
 }
 
 void wilc_gnrl_async_info_received(struct wilc *wilc, u8 *buffer, u32 length)
 {
-	int result;
-	struct host_if_msg *msg;
-	int id;
 	struct host_if_drv *hif_drv;
+	struct host_if_msg *msg;
 	struct wilc_vif *vif;
+	int srcu_idx;
+	int result;
+	int id;
 
 	mutex_lock(&wilc->deinit_lock);
 
 	id = get_unaligned_le32(&buffer[length - 4]);
+	srcu_idx = srcu_read_lock(&wilc->srcu);
 	vif = wilc_get_vif_from_idx(wilc, id);
-	if (!vif) {
-		mutex_unlock(&wilc->deinit_lock);
-		return;
-	}
+	if (!vif)
+		goto out;
 
 	hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
-		mutex_unlock(&wilc->deinit_lock);
-		return;
+		goto out;
 	}
 
 	if (!hif_drv->conn_info.conn_result) {
 		netdev_err(vif->ndev, "%s: conn_result is NULL\n", __func__);
-		mutex_unlock(&wilc->deinit_lock);
-		return;
+		goto out;
 	}
 
 	msg = wilc_alloc_work(vif, handle_rcvd_gnrl_async_info, false);
-	if (IS_ERR(msg)) {
-		mutex_unlock(&wilc->deinit_lock);
-		return;
-	}
+	if (IS_ERR(msg))
+		goto out;
 
 	msg->body.mac_info.status = buffer[7];
 	result = wilc_enqueue_work(msg);
@@ -1648,32 +1648,36 @@ void wilc_gnrl_async_info_received(struct wilc *wilc, u8 *buffer, u32 length)
 		netdev_err(vif->ndev, "%s: enqueue work failed\n", __func__);
 		kfree(msg);
 	}
-
+out:
+	srcu_read_unlock(&wilc->srcu, srcu_idx);
 	mutex_unlock(&wilc->deinit_lock);
 }
 
 void wilc_scan_complete_received(struct wilc *wilc, u8 *buffer, u32 length)
 {
-	int result;
-	int id;
 	struct host_if_drv *hif_drv;
 	struct wilc_vif *vif;
+	int srcu_idx;
+	int result;
+	int id;
 
 	id = get_unaligned_le32(&buffer[length - 4]);
+	srcu_idx = srcu_read_lock(&wilc->srcu);
 	vif = wilc_get_vif_from_idx(wilc, id);
 	if (!vif)
-		return;
-	hif_drv = vif->hif_drv;
+		goto out;
 
-	if (!hif_drv)
-		return;
+	hif_drv = vif->hif_drv;
+	if (!hif_drv) {
+		goto out;
+	}
 
 	if (hif_drv->usr_scan_req.scan_result) {
 		struct host_if_msg *msg;
 
 		msg = wilc_alloc_work(vif, handle_scan_complete, false);
 		if (IS_ERR(msg))
-			return;
+			goto out;
 
 		result = wilc_enqueue_work(msg);
 		if (result) {
@@ -1682,6 +1686,8 @@ void wilc_scan_complete_received(struct wilc *wilc, u8 *buffer, u32 length)
 			kfree(msg);
 		}
 	}
+out:
+	srcu_read_unlock(&wilc->srcu, srcu_idx);
 }
 
 int wilc_remain_on_channel(struct wilc_vif *vif, u64 cookie, u16 chan,
diff --git a/drivers/net/wireless/microchip/wilc1000/netdev.c b/drivers/net/wireless/microchip/wilc1000/netdev.c
index 6068699e4..710e29bea 100644
--- a/drivers/net/wireless/microchip/wilc1000/netdev.c
+++ b/drivers/net/wireless/microchip/wilc1000/netdev.c
@@ -96,7 +96,7 @@ static struct net_device *get_if_handler(struct wilc *wilc, u8 *mac_header)
 	struct wilc_vif *vif;
 	struct ieee80211_hdr *h = (struct ieee80211_hdr *)mac_header;
 
-	list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+	wilc_for_each_vif(wilc, vif) {
 		if (vif->iftype == WILC_STATION_MODE)
 			if (ether_addr_equal_unaligned(h->addr2, vif->bssid)) {
 				ndev = vif->ndev;
@@ -132,7 +132,7 @@ int wilc_wlan_get_num_conn_ifcs(struct wilc *wilc)
 	struct wilc_vif *vif;
 
 	srcu_idx = srcu_read_lock(&wilc->srcu);
-	list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+	wilc_for_each_vif(wilc, vif) {
 		if (!is_zero_ether_addr(vif->bssid))
 			ret_val++;
 	}
@@ -140,6 +140,19 @@ int wilc_wlan_get_num_conn_ifcs(struct wilc *wilc)
 	return ret_val;
 }
 
+static void wilc_wake_tx_queues(struct wilc *wl)
+{
+	int srcu_idx;
+	struct wilc_vif *ifc;
+
+	srcu_idx = srcu_read_lock(&wl->srcu);
+	wilc_for_each_vif(wl, ifc) {
+		if (ifc->mac_opened && netif_queue_stopped(ifc->ndev))
+			netif_wake_queue(ifc->ndev);
+	}
+	srcu_read_unlock(&wl->srcu, srcu_idx);
+}
+
 static int wilc_txq_task(void *vp)
 {
 	int ret;
@@ -160,17 +173,7 @@ static int wilc_txq_task(void *vp)
 		do {
 			ret = wilc_wlan_handle_txq(wl, &txq_count);
 			if (txq_count < FLOW_CONTROL_LOWER_THRESHOLD) {
-				int srcu_idx;
-				struct wilc_vif *ifc;
-
-				srcu_idx = srcu_read_lock(&wl->srcu);
-				list_for_each_entry_rcu(ifc, &wl->vif_list,
-							list) {
-					if (ifc->mac_opened &&
-					    netif_queue_stopped(ifc->ndev))
-						netif_wake_queue(ifc->ndev);
-				}
-				srcu_read_unlock(&wl->srcu, srcu_idx);
+				wilc_wake_tx_queues(wl);
 			}
 			if (ret != WILC_VMM_ENTRY_FULL_RETRY)
 				break;
@@ -284,7 +287,7 @@ static int wilc_init_fw_config(struct net_device *dev, struct wilc_vif *vif)
 	if (!wilc_wlan_cfg_set(vif, 0, WID_11G_OPERATING_MODE, &b, 1, 0, 0))
 		goto fail;
 
-	b = WILC_FW_PREAMBLE_SHORT;
+	b = WILC_FW_PREAMBLE_AUTO;
 	if (!wilc_wlan_cfg_set(vif, 0, WID_PREAMBLE, &b, 1, 0, 0))
 		goto fail;
 
@@ -416,7 +419,7 @@ static int wilc_init_fw_config(struct net_device *dev, struct wilc_vif *vif)
 
 	b = 1;
 	if (!wilc_wlan_cfg_set(vif, 0, WID_11N_IMMEDIATE_BA_ENABLED, &b, 1,
-			       1, 1))
+			       1, 0))
 		goto fail;
 
 	return 0;
@@ -665,7 +668,7 @@ static int wilc_set_mac_addr(struct net_device *dev, void *p)
 	/* Verify MAC Address is not already in use: */
 
 	srcu_idx = srcu_read_lock(&wilc->srcu);
-	list_for_each_entry_rcu(tmp_vif, &wilc->vif_list, list) {
+	wilc_for_each_vif(wilc, tmp_vif) {
 		wilc_get_mac_address(tmp_vif, mac_addr);
 		if (ether_addr_equal(addr->sa_data, mac_addr)) {
 			if (vif != tmp_vif) {
@@ -768,7 +771,7 @@ netdev_tx_t wilc_mac_xmit(struct sk_buff *skb, struct net_device *ndev)
 		struct wilc_vif *vif;
 
 		srcu_idx = srcu_read_lock(&wilc->srcu);
-		list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+		wilc_for_each_vif(wilc, vif) {
 			if (vif->mac_opened)
 				netif_stop_queue(vif->ndev);
 		}
@@ -811,19 +814,21 @@ static int wilc_mac_close(struct net_device *ndev)
 void wilc_frmw_to_host(struct wilc *wilc, u8 *buff, u32 size,
 		       u32 pkt_offset)
 {
-	unsigned int frame_len = 0;
-	int stats;
 	unsigned char *buff_to_send = NULL;
-	struct sk_buff *skb;
 	struct net_device *wilc_netdev;
+	unsigned int frame_len = 0;
 	struct wilc_vif *vif;
+	struct sk_buff *skb;
+	int srcu_idx;
+	int stats;
 
 	if (!wilc)
 		return;
 
+	srcu_idx = srcu_read_lock(&wilc->srcu);
 	wilc_netdev = get_if_handler(wilc, buff);
 	if (!wilc_netdev)
-		return;
+		goto out;
 
 	buff += pkt_offset;
 	vif = netdev_priv(wilc_netdev);
@@ -834,7 +839,7 @@ void wilc_frmw_to_host(struct wilc *wilc, u8 *buff, u32 size,
 
 		skb = dev_alloc_skb(frame_len);
 		if (!skb)
-			return;
+			goto out;
 
 		skb->dev = wilc_netdev;
 
@@ -847,6 +852,8 @@ void wilc_frmw_to_host(struct wilc *wilc, u8 *buff, u32 size,
 		stats = netif_rx(skb);
 		netdev_dbg(wilc_netdev, "netif_rx ret value is: %d\n", stats);
 	}
+out:
+	srcu_read_unlock(&wilc->srcu, srcu_idx);
 }
 
 void wilc_wfi_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size, bool is_auth)
@@ -855,7 +862,7 @@ void wilc_wfi_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size, bool is_auth)
 	struct wilc_vif *vif;
 
 	srcu_idx = srcu_read_lock(&wilc->srcu);
-	list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+	wilc_for_each_vif(wilc, vif) {
 		struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buff;
 		u16 type = le16_to_cpup((__le16 *)buff);
 		u32 type_bit = BIT(type >> 4);
@@ -927,7 +934,7 @@ static u8 wilc_get_available_idx(struct wilc *wl)
 	int srcu_idx;
 
 	srcu_idx = srcu_read_lock(&wl->srcu);
-	list_for_each_entry_rcu(vif, &wl->vif_list, list) {
+	wilc_for_each_vif(wl, vif) {
 		if (vif->idx == 0)
 			idx = 1;
 		else
diff --git a/drivers/net/wireless/microchip/wilc1000/netdev.h b/drivers/net/wireless/microchip/wilc1000/netdev.h
index aafe3dc44..5937d6d45 100644
--- a/drivers/net/wireless/microchip/wilc1000/netdev.h
+++ b/drivers/net/wireless/microchip/wilc1000/netdev.h
@@ -13,6 +13,7 @@
 #include <net/ieee80211_radiotap.h>
 #include <linux/if_arp.h>
 #include <linux/gpio/consumer.h>
+#include <linux/rculist.h>
 
 #include "hif.h"
 #include "wlan.h"
@@ -29,6 +30,11 @@
 
 #define TX_BACKOFF_WEIGHT_MS			1
 
+#define wilc_for_each_vif(w, v) \
+	struct wilc *_w = w; \
+	list_for_each_entry_srcu(v, &_w->vif_list, list, \
+				 srcu_read_lock_held(&_w->srcu))
+
 struct wilc_wfi_stats {
 	unsigned long rx_packets;
 	unsigned long tx_packets;
diff --git a/drivers/net/wireless/microchip/wilc1000/spi.c b/drivers/net/wireless/microchip/wilc1000/spi.c
index 6a82b6ca2..61c3572ce 100644
--- a/drivers/net/wireless/microchip/wilc1000/spi.c
+++ b/drivers/net/wireless/microchip/wilc1000/spi.c
@@ -42,7 +42,7 @@ MODULE_PARM_DESC(enable_crc16,
 #define WILC_SPI_RSP_HDR_EXTRA_DATA	8
 
 struct wilc_spi {
-	bool isinit;		/* true if SPI protocol has been configured */
+	bool isinit;		/* true if wilc_spi_init was successful */
 	bool probing_crc;	/* true if we're probing chip's CRC config */
 	bool crc7_enabled;	/* true if crc7 is currently enabled */
 	bool crc16_enabled;	/* true if crc16 is currently enabled */
@@ -55,6 +55,8 @@ struct wilc_spi {
 static const struct wilc_hif_func wilc_hif_spi;
 
 static int wilc_spi_reset(struct wilc *wilc);
+static int wilc_spi_configure_bus_protocol(struct wilc *wilc);
+static int wilc_validate_chipid(struct wilc *wilc);
 
 /********************************************
  *
@@ -232,8 +234,27 @@ static int wilc_bus_probe(struct spi_device *spi)
 	}
 	clk_prepare_enable(wilc->rtc_clk);
 
+	dev_info(&spi->dev, "Selected CRC config: crc7=%s, crc16=%s\n",
+		 enable_crc7 ? "on" : "off", enable_crc16 ? "on" : "off");
+
+	/* we need power to configure the bus protocol and to read the chip id: */
+
+	wilc_wlan_power(wilc, true);
+
+	ret = wilc_spi_configure_bus_protocol(wilc);
+	if (ret)
+		goto power_down;
+
+	ret = wilc_validate_chipid(wilc);
+	if (ret)
+		goto power_down;
+
+	wilc_wlan_power(wilc, false);
 	return 0;
 
+power_down:
+	clk_disable_unprepare(wilc->rtc_clk);
+	wilc_wlan_power(wilc, false);
 netdev_cleanup:
 	wilc_netdev_cleanup(wilc);
 free:
@@ -301,7 +322,6 @@ static int wilc_spi_tx(struct wilc *wilc, u8 *b, u32 len)
 
 		memset(&msg, 0, sizeof(msg));
 		spi_message_init(&msg);
-		msg.spi = spi;
 		spi_message_add_tail(&tr, &msg);
 
 		ret = spi_sync(spi, &msg);
@@ -344,7 +364,6 @@ static int wilc_spi_rx(struct wilc *wilc, u8 *rb, u32 rlen)
 
 		memset(&msg, 0, sizeof(msg));
 		spi_message_init(&msg);
-		msg.spi = spi;
 		spi_message_add_tail(&tr, &msg);
 
 		ret = spi_sync(spi, &msg);
@@ -382,8 +401,6 @@ static int wilc_spi_tx_rx(struct wilc *wilc, u8 *wb, u8 *rb, u32 rlen)
 
 		memset(&msg, 0, sizeof(msg));
 		spi_message_init(&msg);
-		msg.spi = spi;
-
 		spi_message_add_tail(&tr, &msg);
 		ret = spi_sync(spi, &msg);
 		if (ret < 0)
@@ -477,7 +494,7 @@ static int spi_data_write(struct wilc *wilc, u8 *b, u32 sz)
  ********************************************/
 static u8 wilc_get_crc7(u8 *buffer, u32 len)
 {
-	return crc7_be(0xfe, buffer, len);
+	return crc7_be(0xfe, buffer, len) | 0x01;
 }
 
 static int wilc_spi_single_read(struct wilc *wilc, u8 cmd, u32 adr, void *b,
@@ -1106,26 +1123,34 @@ static int wilc_spi_deinit(struct wilc *wilc)
 
 static int wilc_spi_init(struct wilc *wilc, bool resume)
 {
-	struct spi_device *spi = to_spi_device(wilc->dev);
 	struct wilc_spi *spi_priv = wilc->bus_data;
-	u32 reg;
-	u32 chipid;
-	int ret, i;
+	int ret;
 
 	if (spi_priv->isinit) {
 		/* Confirm we can read chipid register without error: */
-		ret = wilc_spi_read_reg(wilc, WILC_CHIPID, &chipid);
-		if (ret == 0)
+		if (wilc_validate_chipid(wilc) == 0)
 			return 0;
-
-		dev_err(&spi->dev, "Fail cmd read chip id...\n");
 	}
 
 	wilc_wlan_power(wilc, true);
 
-	/*
-	 * configure protocol
-	 */
+	ret = wilc_spi_configure_bus_protocol(wilc);
+	if (ret) {
+		wilc_wlan_power(wilc, false);
+		return ret;
+	}
+
+	spi_priv->isinit = true;
+
+	return 0;
+}
+
+static int wilc_spi_configure_bus_protocol(struct wilc *wilc)
+{
+	struct spi_device *spi = to_spi_device(wilc->dev);
+	struct wilc_spi *spi_priv = wilc->bus_data;
+	u32 reg;
+	int ret, i;
 
 	/*
 	 * Infer the CRC settings that are currently in effect.  This
@@ -1177,6 +1202,15 @@ static int wilc_spi_init(struct wilc *wilc, bool resume)
 
 	spi_priv->probing_crc = false;
 
+	return 0;
+}
+
+static int wilc_validate_chipid(struct wilc *wilc)
+{
+	struct spi_device *spi = to_spi_device(wilc->dev);
+	u32 chipid;
+	int ret;
+
 	/*
 	 * make sure can read chip id without protocol error
 	 */
@@ -1185,9 +1219,10 @@ static int wilc_spi_init(struct wilc *wilc, bool resume)
 		dev_err(&spi->dev, "Fail cmd read chip id...\n");
 		return ret;
 	}
-
-	spi_priv->isinit = true;
-
+	if (!is_wilc1000(chipid)) {
+		dev_err(&spi->dev, "Unknown chip id 0x%x\n", chipid);
+		return -ENODEV;
+	}
 	return 0;
 }
 
diff --git a/drivers/net/wireless/microchip/wilc1000/wlan.c b/drivers/net/wireless/microchip/wilc1000/wlan.c
index 9eb115c79..a9e872a7b 100644
--- a/drivers/net/wireless/microchip/wilc1000/wlan.c
+++ b/drivers/net/wireless/microchip/wilc1000/wlan.c
@@ -12,11 +12,6 @@
 
 #define WAKE_UP_TRIAL_RETRY		10000
 
-static inline bool is_wilc1000(u32 id)
-{
-	return (id & (~WILC_CHIP_REV_FIELD)) == WILC_1000_BASE_ID;
-}
-
 static inline void acquire_bus(struct wilc *wilc, enum bus_acquire acquire)
 {
 	mutex_lock(&wilc->hif_cs);
@@ -730,7 +725,7 @@ int wilc_wlan_handle_txq(struct wilc *wilc, u32 *txq_count)
 	mutex_lock(&wilc->txq_add_to_head_cs);
 
 	srcu_idx = srcu_read_lock(&wilc->srcu);
-	list_for_each_entry_rcu(vif, &wilc->vif_list, list)
+	wilc_for_each_vif(wilc, vif)
 		wilc_wlan_txq_filter_dup_tcp_ack(vif->ndev);
 	srcu_read_unlock(&wilc->srcu, srcu_idx);
 
@@ -1198,27 +1193,32 @@ int wilc_wlan_stop(struct wilc *wilc, struct wilc_vif *vif)
 
 	acquire_bus(wilc, WILC_BUS_ACQUIRE_AND_WAKEUP);
 
-	ret = wilc->hif_func->hif_read_reg(wilc, WILC_GP_REG_0, &reg);
-	if (ret) {
-		netdev_err(vif->ndev, "Error while reading reg\n");
+	ret = wilc->hif_func->hif_read_reg(wilc, GLOBAL_MODE_CONTROL, &reg);
+	if (ret)
 		goto release;
-	}
 
-	ret = wilc->hif_func->hif_write_reg(wilc, WILC_GP_REG_0,
-					(reg | WILC_ABORT_REQ_BIT));
-	if (ret) {
-		netdev_err(vif->ndev, "Error while writing reg\n");
+	reg &= ~WILC_GLOBAL_MODE_ENABLE_WIFI;
+	ret = wilc->hif_func->hif_write_reg(wilc, GLOBAL_MODE_CONTROL, reg);
+	if (ret)
 		goto release;
-	}
 
-	ret = wilc->hif_func->hif_read_reg(wilc, WILC_FW_HOST_COMM, &reg);
+	ret = wilc->hif_func->hif_read_reg(wilc, PWR_SEQ_MISC_CTRL, &reg);
+	if (ret)
+		goto release;
+
+	reg &= ~WILC_PWR_SEQ_ENABLE_WIFI_SLEEP;
+	ret = wilc->hif_func->hif_write_reg(wilc, PWR_SEQ_MISC_CTRL, reg);
+	if (ret)
+		goto release;
+
+	ret = wilc->hif_func->hif_read_reg(wilc, WILC_GP_REG_0, &reg);
 	if (ret) {
 		netdev_err(vif->ndev, "Error while reading reg\n");
 		goto release;
 	}
-	reg = BIT(0);
 
-	ret = wilc->hif_func->hif_write_reg(wilc, WILC_FW_HOST_COMM, reg);
+	ret = wilc->hif_func->hif_write_reg(wilc, WILC_GP_REG_0,
+					(reg | WILC_ABORT_REQ_BIT));
 	if (ret) {
 		netdev_err(vif->ndev, "Error while writing reg\n");
 		goto release;
@@ -1410,7 +1410,7 @@ static int init_chip(struct net_device *dev)
 	struct wilc_vif *vif = netdev_priv(dev);
 	struct wilc *wilc = vif->wilc;
 
-	acquire_bus(wilc, WILC_BUS_ACQUIRE_ONLY);
+	acquire_bus(wilc, WILC_BUS_ACQUIRE_AND_WAKEUP);
 
 	chipid = wilc_get_chipid(wilc, true);
 
@@ -1440,7 +1440,7 @@ static int init_chip(struct net_device *dev)
 	}
 
 release:
-	release_bus(wilc, WILC_BUS_RELEASE_ONLY);
+	release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
 
 	return ret;
 }
diff --git a/drivers/net/wireless/microchip/wilc1000/wlan.h b/drivers/net/wireless/microchip/wilc1000/wlan.h
index a72cd5cac..54643d8fe 100644
--- a/drivers/net/wireless/microchip/wilc1000/wlan.h
+++ b/drivers/net/wireless/microchip/wilc1000/wlan.h
@@ -156,6 +156,12 @@
 #define WILC_GP_REG_0			0x149c
 #define WILC_GP_REG_1			0x14a0
 
+#define GLOBAL_MODE_CONTROL		0x1614
+#define PWR_SEQ_MISC_CTRL		0x3008
+
+#define WILC_GLOBAL_MODE_ENABLE_WIFI	BIT(0)
+#define WILC_PWR_SEQ_ENABLE_WIFI_SLEEP	BIT(28)
+
 #define WILC_HAVE_SDIO_IRQ_GPIO		BIT(0)
 #define WILC_HAVE_USE_PMU		BIT(1)
 #define WILC_HAVE_SLEEP_CLK_SRC_RTC	BIT(2)
@@ -403,6 +409,11 @@ struct wilc_cfg_rsp {
 
 struct wilc_vif;
 
+static inline bool is_wilc1000(u32 id)
+{
+	return (id & (~WILC_CHIP_REV_FIELD)) == WILC_1000_BASE_ID;
+}
+
 int wilc_wlan_firmware_download(struct wilc *wilc, const u8 *buffer,
 				u32 buffer_size);
 int wilc_wlan_start(struct wilc *wilc);