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usb: common: add support to get maximum speed from dt

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Add support to get maximum speed from dt so that usb drivers
makes use of it for DT parsing.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
(rebase and fix errors)
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Mugunthan V N
2018-05-18 13:15:05 +02:00
committed by Marek Vasut
parent 23ba2d6372
commit 59592b99d8
2 changed files with 38 additions and 0 deletions
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9
include/linux/usb/otg.h
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@@ -25,4 +25,13 @@ enum usb_dr_mode {
*/
enum usb_dr_mode usb_get_dr_mode(int node);
/**
* usb_get_maximum_speed() - Get maximum speed for given device
* @node: Node offset to the given device
*
* The function gets phy interface string from property 'maximum-speed',
* and returns the correspondig enum usb_device_speed
*/
enum usb_device_speed usb_get_maximum_speed(int node);
#endif /* __LINUX_USB_OTG_H */