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usb: common: of_usb_get_maximum_speed to usb_get_maximum_speed

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By using the unified device property interface, the function
can be made available for all platforms and not just the
ones using DT.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Heikki Krogerus
2015-09-21 11:14:32 +03:00
committed by Felipe Balbi
parent 58efd4b06d
commit 63863b988e
6 changed files with 32 additions and 36 deletions
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11
include/linux/usb/ch9.h
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@@ -32,9 +32,9 @@
#ifndef __LINUX_USB_CH9_H
#define __LINUX_USB_CH9_H
#include <linux/device.h>
#include <uapi/linux/usb/ch9.h>
/**
* usb_speed_string() - Returns human readable-name of the speed.
* @speed: The speed to return human-readable name for. If it's not
@@ -43,6 +43,15 @@
*/
extern const char *usb_speed_string(enum usb_device_speed speed);
/**
* usb_get_maximum_speed - Get maximum requested speed for a given USB
* controller.
* @dev: Pointer to the given USB controller device
*
* The function gets the maximum speed string from property "maximum-speed",
* and returns the corresponding enum usb_device_speed.
*/
extern enum usb_device_speed usb_get_maximum_speed(struct device *dev);
/**
* usb_state_string - Returns human readable name for the state.