usb: common: add API to get if the platform supports TPL
The TPL (Targeted Peripheral List) is used for targeted hosts
(non-PC hosts), and it can be used at USB OTG & EH certification
and some specific products which need white list.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/usb/of.h b/include/linux/usb/of.h
index 8c38aa2..cfe0528 100644
--- a/include/linux/usb/of.h
+++ b/include/linux/usb/of.h
@@ -14,6 +14,7 @@
#if IS_ENABLED(CONFIG_OF)
enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np);
enum usb_device_speed of_usb_get_maximum_speed(struct device_node *np);
+bool of_usb_host_tpl_support(struct device_node *np);
#else
static inline enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
{
@@ -25,6 +26,10 @@
{
return USB_SPEED_UNKNOWN;
}
+static inline bool of_usb_host_tpl_support(struct device_node *np)
+{
+ return false;
+}
#endif
#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_USB_SUPPORT)