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usb: mtu3: fix EXTCON dependency

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commit 3d54d10c6a upstream.

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: d0ed062a8b ("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>
This commit is contained in:
Arnd Bergmann 2019-03-25 14:54:30 +01:00 committed by Greg Kroah-Hartman
parent d05885ad4d
commit 54333dcc9d
1 changed files with 1 additions and 0 deletions
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drivers/usb/mtu3/Kconfig
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@ -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
Say Y or M here if your system runs on MediaTek SoCs with