diff options
| author | Heikki Krogerus <heikki.krogerus@linux.intel.com> | 2015-09-21 11:14:32 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-09-27 10:54:31 -0500 |
| commit | 63863b988eeca2823ce76b28b104e0b8366cafec (patch) | |
| tree | 7b30daaebfda473f60805afeef2ed696305ddf51 /drivers/usb/common | |
| parent | 58efd4b06df4a421652cb2c8a850a9697a37915c (diff) | |
usb: common: of_usb_get_maximum_speed to usb_get_maximum_speed
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>
Diffstat (limited to 'drivers/usb/common')
| -rw-r--r-- | drivers/usb/common/common.c | 44 |
1 files changed, 18 insertions, 26 deletions
diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c index 9e39286a4e5a..b25a111903ab 100644 --- a/drivers/usb/common/common.c +++ b/drivers/usb/common/common.c @@ -60,6 +60,24 @@ const char *usb_speed_string(enum usb_device_speed speed) } EXPORT_SYMBOL_GPL(usb_speed_string); +enum usb_device_speed usb_get_maximum_speed(struct device *dev) +{ + const char *maximum_speed; + int err; + int i; + + err = device_property_read_string(dev, "maximum-speed", &maximum_speed); + if (err < 0) + return USB_SPEED_UNKNOWN; + + for (i = 0; i < ARRAY_SIZE(speed_names); i++) + if (strcmp(maximum_speed, speed_names[i]) == 0) + return i; + + return USB_SPEED_UNKNOWN; +} +EXPORT_SYMBOL_GPL(usb_get_maximum_speed); + const char *usb_state_string(enum usb_device_state state) { static const char *const names[] = { @@ -114,32 +132,6 @@ enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np) EXPORT_SYMBOL_GPL(of_usb_get_dr_mode); /** - * of_usb_get_maximum_speed - Get maximum requested speed for a given USB - * controller. - * @np: Pointer to the given device_node - * - * The function gets the maximum speed string from property "maximum-speed", - * and returns the corresponding enum usb_device_speed. - */ -enum usb_device_speed of_usb_get_maximum_speed(struct device_node *np) -{ - const char *maximum_speed; - int err; - int i; - - err = of_property_read_string(np, "maximum-speed", &maximum_speed); - if (err < 0) - return USB_SPEED_UNKNOWN; - - for (i = 0; i < ARRAY_SIZE(speed_names); i++) - if (strcmp(maximum_speed, speed_names[i]) == 0) - return i; - - return USB_SPEED_UNKNOWN; -} -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 |