mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 17:30:02 +00:00
usb: roles: Add fwnode_usb_role_switch_get() function
The fwnode_usb_role_switch_get() function is exactly the same as usb_role_switch_get(), except that it takes struct fwnode_handle as parameter instead of struct device. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Tested-by: Biju Das <biju.das@bp.renesas.com> Link: https://lore.kernel.org/r/1567070558-29417-8-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
44493062ab
commit
a31f01777b
2 changed files with 27 additions and 0 deletions
|
@ -135,6 +135,26 @@ struct usb_role_switch *usb_role_switch_get(struct device *dev)
|
|||
}
|
||||
EXPORT_SYMBOL_GPL(usb_role_switch_get);
|
||||
|
||||
/**
|
||||
* fwnode_usb_role_switch_get - Find USB role switch linked with the caller
|
||||
* @fwnode: The caller device node
|
||||
*
|
||||
* This is similar to the usb_role_switch_get() function above, but it searches
|
||||
* the switch using fwnode instead of device entry.
|
||||
*/
|
||||
struct usb_role_switch *fwnode_usb_role_switch_get(struct fwnode_handle *fwnode)
|
||||
{
|
||||
struct usb_role_switch *sw;
|
||||
|
||||
sw = fwnode_connection_find_match(fwnode, "usb-role-switch", NULL,
|
||||
usb_role_switch_match);
|
||||
if (!IS_ERR_OR_NULL(sw))
|
||||
WARN_ON(!try_module_get(sw->dev.parent->driver->owner));
|
||||
|
||||
return sw;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(fwnode_usb_role_switch_get);
|
||||
|
||||
/**
|
||||
* usb_role_switch_put - Release handle to a switch
|
||||
* @sw: USB Role Switch
|
||||
|
|
|
@ -47,6 +47,7 @@ struct usb_role_switch_desc {
|
|||
int usb_role_switch_set_role(struct usb_role_switch *sw, enum usb_role role);
|
||||
enum usb_role usb_role_switch_get_role(struct usb_role_switch *sw);
|
||||
struct usb_role_switch *usb_role_switch_get(struct device *dev);
|
||||
struct usb_role_switch *fwnode_usb_role_switch_get(struct fwnode_handle *node);
|
||||
void usb_role_switch_put(struct usb_role_switch *sw);
|
||||
|
||||
struct usb_role_switch *
|
||||
|
@ -70,6 +71,12 @@ static inline struct usb_role_switch *usb_role_switch_get(struct device *dev)
|
|||
return ERR_PTR(-ENODEV);
|
||||
}
|
||||
|
||||
static inline struct usb_role_switch *
|
||||
fwnode_usb_role_switch_get(struct fwnode_handle *node)
|
||||
{
|
||||
return ERR_PTR(-ENODEV);
|
||||
}
|
||||
|
||||
static inline void usb_role_switch_put(struct usb_role_switch *sw) { }
|
||||
|
||||
static inline struct usb_role_switch *
|
||||
|
|
Loading…
Reference in a new issue