cnss2: Return kobject to wlan host driver

Return kobject to wlan host driver. Host driver
asks platform driver for wifi kobject. If wifi kobject
provided by platform driver is NULL, it creates wifi
kobject itself.

Change-Id: I7f44350a84ad054c674442ae0c0272885dc95d38
CRs-Fixed: 3262907

cnss2/main.c

@@ -159,6 +159,22 @@ int cnss_get_mem_seg_count(enum cnss_remote_mem_type type, u32 *seg)
 }
 EXPORT_SYMBOL(cnss_get_mem_seg_count);
 
+/**
+ * cnss_get_wifi_kobject -return wifi kobject
+ * Return: Null, to maintain driver comnpatibilty
+ */
+struct kobject *cnss_get_wifi_kobj(struct device *dev)
+{
+	struct cnss_plat_data *plat_priv;
+
+	plat_priv = cnss_get_plat_priv(NULL);
+	if (!plat_priv)
+		return NULL;
+
+	return plat_priv->wifi_kobj;
+}
+EXPORT_SYMBOL(cnss_get_wifi_kobj);
+
 /**
  * cnss_get_mem_segment_info - Get memory info of different type
  * @type: memory type

cnss2/main.h

@@ -550,6 +550,7 @@ struct cnss_plat_data {
 	bool adsp_pc_enabled;
 	u64 feature_list;
 	u32 is_converged_dt;
+	struct kobject *wifi_kobj;
 	u16 hang_event_data_len;
 	u32 hang_data_addr_offset;
 	/* bitmap to detect FEM combination */

inc/cnss2.h

@@ -292,4 +292,5 @@ extern int cnss_get_mem_segment_info(enum cnss_remote_mem_type type,
 extern int cnss_get_pci_slot(struct device *dev);
 extern int cnss_pci_get_reg_dump(struct device *dev, uint8_t *buffer,
 				 uint32_t len);
+extern struct kobject *cnss_get_wifi_kobj(struct device *dev);
 #endif /* _NET_CNSS2_H */