musb: Program extvbus for OMAP3EVM Rev >= E

OMAP3EVM Rev >=E uses external Vbus supply so setting 'extvbus'
to '1' for OMAP3EVM Rev >=E runtime based on EVM revision.

CC: Remy Bohmer <linux@bohmer.net>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
diff --git a/drivers/usb/musb/omap3.c b/drivers/usb/musb/omap3.c
index 785629c..a983552 100644
--- a/drivers/usb/musb/omap3.c
+++ b/drivers/usb/musb/omap3.c
@@ -119,6 +119,9 @@
 		stdby &= ~OMAP3_OTG_FORCESTDBY_STANDBY;
 		writel(stdby, &otg->forcestdby);
 
+#ifdef CONFIG_OMAP3_EVM
+		musb_cfg.extvbus = omap3_evm_need_extvbus();
+#endif
 		platform_needs_initialization = 0;
 	}
 
diff --git a/drivers/usb/musb/omap3.h b/drivers/usb/musb/omap3.h
index b591862..c934e0c 100644
--- a/drivers/usb/musb/omap3.h
+++ b/drivers/usb/musb/omap3.h
@@ -44,4 +44,8 @@
 
 int musb_platform_init(void);
 
+#ifdef CONFIG_OMAP3_EVM
+extern u8 omap3_evm_use_extvbus(void);
+#endif
+
 #endif /* _MUSB_OMAP3_H */