From 422d708384c76b8bf3a860bdd084e3010e28afa0 Mon Sep 17 00:00:00 2001
From: Karl Palsson <karlp@tweak.net.au>
Date: Tue, 4 Oct 2016 20:42:33 +0000
Subject: [PATCH] usb: dwc_otg: enable clocks automatically.

ST usbfs-v1, v2, EFM32 USB, lm4f usb all automatically enable the clock
in their _init routine.  Do the same for the dwc_otg drivers to be
consistent.
---
 lib/usb/usb_f107.c | 1 +
 lib/usb/usb_f207.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/lib/usb/usb_f107.c b/lib/usb/usb_f107.c
index fb8ddf5b..924ac3a6 100644
--- a/lib/usb/usb_f107.c
+++ b/lib/usb/usb_f107.c
@@ -52,6 +52,7 @@ const struct _usbd_driver stm32f107_usb_driver = {
 /** Initialize the USB device controller hardware of the STM32. */
 static usbd_device *stm32f107_usbd_init(void)
 {
+	rcc_periph_clock_enable(RCC_OTGFS);
 	OTG_FS_GINTSTS = OTG_GINTSTS_MMIS;
 
 	OTG_FS_GUSBCFG |= OTG_GUSBCFG_PHYSEL;
diff --git a/lib/usb/usb_f207.c b/lib/usb/usb_f207.c
index fb7dcb5b..7a940c72 100644
--- a/lib/usb/usb_f207.c
+++ b/lib/usb/usb_f207.c
@@ -52,6 +52,7 @@ const struct _usbd_driver stm32f207_usb_driver = {
 /** Initialize the USB device controller hardware of the STM32. */
 static usbd_device *stm32f207_usbd_init(void)
 {
+	rcc_periph_clock_enable(RCC_OTGHS);
 	OTG_HS_GINTSTS = OTG_GINTSTS_MMIS;
 
 	OTG_HS_GUSBCFG |= OTG_GUSBCFG_PHYSEL;