linux_dsm_epyc7002/include/linux/usb/of.h
Li Jun 929412d94f usb: common: add API to update usb otg capabilities by device tree
Check property of usb hardware to update otg version and disable SRP, HNP
and ADP if its disable flag is present.

Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:21 -05:00

53 lines
1.2 KiB
C

/*
* OF helpers for usb devices.
*
* This file is released under the GPLv2
*/
#ifndef __LINUX_USB_OF_H
#define __LINUX_USB_OF_H
#include <linux/usb/ch9.h>
#include <linux/usb/otg.h>
#include <linux/usb/phy.h>
#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);
int of_usb_update_otg_caps(struct device_node *np,
struct usb_otg_caps *otg_caps);
#else
static inline enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
{
return USB_DR_MODE_UNKNOWN;
}
static inline enum usb_device_speed
of_usb_get_maximum_speed(struct device_node *np)
{
return USB_SPEED_UNKNOWN;
}
static inline bool of_usb_host_tpl_support(struct device_node *np)
{
return false;
}
static inline int of_usb_update_otg_caps(struct device_node *np,
struct usb_otg_caps *otg_caps)
{
return 0;
}
#endif
#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_USB_SUPPORT)
enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np);
#else
static inline enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np)
{
return USBPHY_INTERFACE_MODE_UNKNOWN;
}
#endif
#endif /* __LINUX_USB_OF_H */