From: Jayachandran Sreekumaran <jsreekum@codeaurora.org>
Date: Wed, 19 Dec 2018 07:49:03 +0000 (+0530)
Subject: cnss2: Add cnss usb API to check the target status
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=2bf8ef1af34678427b99b9552b0971dbdcf92d50;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git

cnss2: Add cnss usb API to check the target status

Add new cnss usb API to check to check whether the target
is up or down. Remove invoking pld_remove callback function
in usb disconnect.

Change-Id: I0e873737a27f9941db1dae54636ef55ba4d05288
Signed-off-by: Jayachandran Sreekumaran <jsreekum@codeaurora.org>
---

diff --git a/drivers/net/wireless/cnss2/usb.c b/drivers/net/wireless/cnss2/usb.c
index 70aba70757cf..18915715edfd 100644
--- a/drivers/net/wireless/cnss2/usb.c
+++ b/drivers/net/wireless/cnss2/usb.c
@@ -71,6 +71,25 @@ void cnss_usb_wlan_unregister_driver(struct cnss_usb_wlan_driver *driver_ops)
 }
 EXPORT_SYMBOL(cnss_usb_wlan_unregister_driver);
 
+int cnss_usb_is_device_down(struct device *dev)
+{
+	struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev);
+	struct cnss_usb_data *usb_priv;
+
+	if (!plat_priv) {
+		cnss_pr_err("plat_priv is NULL\n");
+		return -ENODEV;
+	}
+
+	usb_priv = plat_priv->bus_priv;
+	if (!usb_priv) {
+		cnss_pr_err("usb_priv is NULL\n");
+		return -ENODEV;
+	}
+	return 0;
+}
+EXPORT_SYMBOL(cnss_usb_is_device_down);
+
 int cnss_usb_register_driver_hdlr(struct cnss_usb_data *usb_priv,
 				  void *data)
 {
@@ -262,10 +281,6 @@ static void cnss_usb_remove(struct usb_interface *interface)
 	struct cnss_usb_data *usb_priv = plat_priv->bus_priv;
 
 	cnss_pr_dbg("driver state %lu\n", plat_priv->driver_state);
-	if (usb_priv->driver_ops) {
-		cnss_pr_dbg("driver_op remove called for USB\n");
-		usb_priv->driver_ops->remove(usb_priv->usb_intf);
-	}
 	cnss_unregister_ramdump(plat_priv);
 	cnss_unregister_subsys(plat_priv);
 	usb_priv->plat_priv = NULL;
diff --git a/include/net/cnss2.h b/include/net/cnss2.h
index 8dc7fc44aa02..85634842834e 100644
--- a/include/net/cnss2.h
+++ b/include/net/cnss2.h
@@ -234,4 +234,6 @@ extern int cnss_set_fw_log_mode(struct device *dev, uint8_t fw_log_mode);
 extern int cnss_usb_wlan_register_driver(struct cnss_usb_wlan_driver *driver);
 extern void cnss_usb_wlan_unregister_driver(struct cnss_usb_wlan_driver *
 					    driver);
+extern int cnss_usb_is_device_down(struct device *dev);
+
 #endif /* _NET_CNSS2_H */