usb: gadget: fsl: fix link error against usb-gadget module

BugLink: https://bugs.launchpad.net/bugs/1863019
[ Upstream commit 2100e3ca3676e894fa48b8f6f01d01733387fe81 ]

The dependency to ensure this driver links correctly fails since
it can not be a loadable module:

drivers/usb/phy/phy-fsl-usb.o: In function `fsl_otg_set_peripheral':
phy-fsl-usb.c:(.text+0x2224): undefined reference to `usb_gadget_vbus_disconnect'

Make the option 'tristate' so it can work correctly.

Fixes: 5a8d651a2bde ("usb: gadget: move gadget API functions to udc-core")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 1685d4c909439380e3fa2712e4db17265e14f32c..2039d2bf1477d611e8af1fb423f00f88a1178e82 100644 (file)
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -20,7 +20,7 @@ config AB8500_USB
          in host mode, low speed.
 
 config FSL_USB2_OTG
-       bool "Freescale USB OTG Transceiver Driver"
+       tristate "Freescale USB OTG Transceiver Driver"
        depends on USB_EHCI_FSL && USB_FSL_USB2 && USB_OTG_FSM=y && PM
        depends on USB_GADGET || !USB_GADGET # if USB_GADGET=m, this can't be 'y'
        select USB_PHY