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usb: renesas: fix extcon dependency

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The renesas usbhs driver calls extcon_get_edev_by_phandle(), which
is defined in drivers/extcon/extcon-class.c, and that can be a
loadable module. If the extcon-class support is disabled, usbhs
will work correctly for all devices that do not need extcon.

However, if extcon-class is a loadable module, and usbhs is
built-in, the kernel fails to link. In order to solve that,
we need a Kconfig dependency that allows extcon to be disabled
but does not allow usbhs built-in if extcon is a module.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Arnd Bergmann 2015-02-18 22:07:07 +01:00 committed by Felipe Balbi
parent 606bf4d5d6
commit eed97ef39a
1 changed files with 1 additions and 0 deletions
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drivers/usb/renesas_usbhs/Kconfig
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@ -6,6 +6,7 @@ config USB_RENESAS_USBHS
tristate 'Renesas USBHS controller'
depends on USB_GADGET
depends on ARCH_SHMOBILE || SUPERH || COMPILE_TEST
depends on EXTCON || !EXTCON # if EXTCON=m, USBHS cannot be built-in
default n
help
Renesas USBHS is a discrete USB host and peripheral controller chip