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authorPeter Chen <peter.chen@freescale.com>2014-08-19 05:51:55 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-09-24 08:28:41 +0400
commit05f8b35a62efb8e70ebcd78e9c957324e9caddad (patch)
tree1d91d0740b04d1c018a53586b84c443cd397d7e4 /drivers/usb
parent9bd0181c74527dbfd3a63ffef412b5d1c660d7e4 (diff)
downloadlinux-05f8b35a62efb8e70ebcd78e9c957324e9caddad.tar.xz
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>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/common/usb-common.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/usb/common/usb-common.c b/drivers/usb/common/usb-common.c
index 6dfd30a863c7..b530fd403ffb 100644
--- a/drivers/usb/common/usb-common.c
+++ b/drivers/usb/common/usb-common.c
@@ -139,6 +139,21 @@ enum usb_device_speed of_usb_get_maximum_speed(struct device_node *np)
}
EXPORT_SYMBOL_GPL(of_usb_get_maximum_speed);
+/**
+ * of_usb_host_tpl_support - to get if Targeted Peripheral List is supported
+ * for given targeted hosts (non-PC hosts)
+ * @np: Pointer to the given device_node
+ *
+ * The function gets if the targeted hosts support TPL or not
+ */
+bool of_usb_host_tpl_support(struct device_node *np)
+{
+ if (of_find_property(np, "tpl-support", NULL))
+ return true;
+
+ return false;
+}
+EXPORT_SYMBOL_GPL(of_usb_host_tpl_support);
#endif
MODULE_LICENSE("GPL");