cnss2: Expose APIs to prevent and allow PCIe L1 state
WLAN driver can use the APIs to control if PCIe can enter L1 and
L1ss states.
Change-Id: Iad784b1ca66199ad61c471635a67542afd34480e
Signed-off-by: Yue Ma <yuem@codeaurora.org>
diff --git a/drivers/net/wireless/cnss2/pci.c b/drivers/net/wireless/cnss2/pci.c
index 86a6149..dc49be3 100644
--- a/drivers/net/wireless/cnss2/pci.c
+++ b/drivers/net/wireless/cnss2/pci.c
@@ -200,6 +200,17 @@
return ret;
}
+int cnss_pci_prevent_l1(struct device *dev)
+{
+ return 0;
+}
+EXPORT_SYMBOL(cnss_pci_prevent_l1);
+
+void cnss_pci_allow_l1(struct device *dev)
+{
+}
+EXPORT_SYMBOL(cnss_pci_allow_l1);
+
int cnss_pci_link_down(struct device *dev)
{
unsigned long flags;
diff --git a/include/net/cnss2.h b/include/net/cnss2.h
index 601f021..d316a3b 100644
--- a/include/net/cnss2.h
+++ b/include/net/cnss2.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -181,6 +181,8 @@
extern int cnss_wlan_register_driver(struct cnss_wlan_driver *driver);
extern void cnss_wlan_unregister_driver(struct cnss_wlan_driver *driver);
extern void cnss_device_crashed(struct device *dev);
+extern int cnss_pci_prevent_l1(struct device *dev);
+extern void cnss_pci_allow_l1(struct device *dev);
extern int cnss_pci_link_down(struct device *dev);
extern int cnss_pci_is_device_down(struct device *dev);
extern void cnss_schedule_recovery(struct device *dev,