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usb: add devicetree helpers for determining dr_mode and phy_type

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This adds two little devicetree helper functions for determining the
dr_mode (host, peripheral, otg) and phy_type (utmi, ulpi,...) from
the devicetree.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Grzeschik
2013-06-13 17:59:55 +03:00
committed by Greg Kroah-Hartman
parent 2e27041296
commit 1c9af65357
6 changed files with 127 additions and 0 deletions
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28
include/linux/usb/of.h Normal file
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@@ -0,0 +1,28 @@
/*
* 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/otg.h>
#include <linux/usb/phy.h>
#ifdef CONFIG_OF
enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np);
enum usb_dr_mode of_usb_get_dr_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;
}
static inline enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
{
return USB_DR_MODE_UNKNOWN;
}
#endif
#endif /* __LINUX_USB_OF_H */

7
include/linux/usb/otg.h
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@@ -92,4 +92,11 @@ otg_start_srp(struct usb_otg *otg)
/* for OTG controller drivers (and maybe other stuff) */
extern int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num);
enum usb_dr_mode {
USB_DR_MODE_UNKNOWN,
USB_DR_MODE_HOST,
USB_DR_MODE_PERIPHERAL,
USB_DR_MODE_OTG,
};
#endif /* __LINUX_USB_OTG_H */

9
include/linux/usb/phy.h
View File

@@ -12,6 +12,15 @@
#include <linux/notifier.h>
#include <linux/usb.h>
enum usb_phy_interface {
USBPHY_INTERFACE_MODE_UNKNOWN,
USBPHY_INTERFACE_MODE_UTMI,
USBPHY_INTERFACE_MODE_UTMIW,
USBPHY_INTERFACE_MODE_ULPI,
USBPHY_INTERFACE_MODE_SERIAL,
USBPHY_INTERFACE_MODE_HSIC,
};
enum usb_phy_events {
USB_EVENT_NONE, /* no events or cable disconnected */
USB_EVENT_VBUS, /* vbus valid event */