From 16e569e9661ea2b964b8abb607a51e5285254021 Mon Sep 17 00:00:00 2001
From: Anton Tikhomirov <av.tikhomirov@samsung.com>
Date: Tue, 26 Nov 2013 11:46:05 +0900
Subject: [PATCH] usb: phy: replace spinlock with mutex in OTG FSM

OTG Final State Machine calls functions which may sleep.

For example, start_gadget callback implementation can use
usb_gadget_vbus_connect(), whose context: can sleep.

If so, mutex should be used instead of spinlock.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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