rsi: add hci detach for hibernation and poweroff

As we missed to detach HCI, while entering power off or hibernation,
an extra hci interface gets created whenever system is woken up, to
avoid this we added hci_detach() in rsi_disconnect(), rsi_freeze(),
and rsi_shutdown() functions which are invoked for these tests.
This patch fixes the issue
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/rsi/rsi_91x_sdio.c

@@ -1132,6 +1132,12 @@ static void rsi_disconnect(struct sdio_func *pfunction)
 	rsi_mac80211_detach(adapter);
 	mdelay(10);
 
+	if (IS_ENABLED(CONFIG_RSI_COEX) && adapter->priv->coex_mode > 1 &&
+	    adapter->priv->bt_adapter) {
+		rsi_bt_ops.detach(adapter->priv->bt_adapter);
+		adapter->priv->bt_adapter = NULL;
+	}
+
 	/* Reset Chip */
 	rsi_reset_chip(adapter);
 
@@ -1308,6 +1314,12 @@ static int rsi_freeze(struct device *dev)
 		rsi_dbg(ERR_ZONE,
 			"##### Device can not wake up through WLAN\n");
 
+	if (IS_ENABLED(CONFIG_RSI_COEX) && common->coex_mode > 1 &&
+	    common->bt_adapter) {
+		rsi_bt_ops.detach(common->bt_adapter);
+		common->bt_adapter = NULL;
+	}
+
 	ret = rsi_sdio_disable_interrupts(pfunction);
 
 	if (sdev->write_fail)
@@ -1355,6 +1367,12 @@ static void rsi_shutdown(struct device *dev)
 	if (rsi_config_wowlan(adapter, wowlan))
 		rsi_dbg(ERR_ZONE, "Failed to configure WoWLAN\n");
 
+	if (IS_ENABLED(CONFIG_RSI_COEX) && adapter->priv->coex_mode > 1 &&
+	    adapter->priv->bt_adapter) {
+		rsi_bt_ops.detach(adapter->priv->bt_adapter);
+		adapter->priv->bt_adapter = NULL;
+	}
+
 	rsi_sdio_disable_interrupts(sdev->pfunction);
 
 	if (sdev->write_fail)

drivers/net/wireless/rsi/rsi_91x_usb.c

@@ -816,6 +816,13 @@ static void rsi_disconnect(struct usb_interface *pfunction)
 		return;
 
 	rsi_mac80211_detach(adapter);
+
+	if (IS_ENABLED(CONFIG_RSI_COEX) && adapter->priv->coex_mode > 1 &&
+	    adapter->priv->bt_adapter) {
+		rsi_bt_ops.detach(adapter->priv->bt_adapter);
+		adapter->priv->bt_adapter = NULL;
+	}
+
 	rsi_reset_card(adapter);
 	rsi_deinit_usb_interface(adapter);
 	rsi_91x_deinit(adapter);