From 3d54d10c6afed34fd45b852bf76f55e8da31d8ef Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 25 Mar 2019 14:54:30 +0100
Subject: [PATCH] usb: mtu3: fix EXTCON dependency
Git-commit: 3d54d10c6afed34fd45b852bf76f55e8da31d8ef
Patch-mainline: v5.1-rc3
References: bsc#1051510
When EXTCON is a loadable module, mtu3 fails to link as built-in:
Drivers/usb/mtu3/mtu3_plat.o: In function `mtu3_probe':
mtu3_plat.c:(.text+0x690): undefined reference to `extcon_get_edev_by_phandle'
Add a Kconfig dependency to force mtu3 also to be a loadable module
if extconn is, but still allow it to be built without extcon.
Fixes: d0ed062a8b75 ("usb: mtu3: dual-role mode support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/usb/mtu3/Kconfig | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/usb/mtu3/Kconfig
+++ b/drivers/usb/mtu3/Kconfig
@@ -4,6 +4,7 @@ config USB_MTU3
tristate "MediaTek USB3 Dual Role controller"
depends on EXTCON && (USB || USB_GADGET) && HAS_DMA
depends on ARCH_MEDIATEK || COMPILE_TEST
+ depends on EXTCON || !EXTCON
select USB_XHCI_MTK if USB_SUPPORT && USB_XHCI_HCD
help
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