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usb: gadget: udc: fix snps_udc_plat.c build errors

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Fix build errors that happen when CONFIG_EXTCON=m and
CONFIG_USB_SNP_UDC_PLAT=y by preventing that combination in Kconfig.
CONFIG_EXTCON can still be disabled or enabled for this driver since
<linux/extcon.h> has stubs for the disabled case, but if CONFIG_EXTCON=m,
USB_SNP_UDC_PLAT is restricted to m or n (cannot be builtin).

drivers/built-in.o: In function `udc_plat_remove':
snps_udc_plat.c:(.text+0x2c4060): undefined reference to `extcon_unregister_notifier'
drivers/built-in.o: In function `udc_plat_probe':
snps_udc_plat.c:(.text+0x2c438c): undefined reference to `extcon_get_edev_by_phandle'
snps_udc_plat.c:(.text+0x2c43f2): undefined reference to `extcon_register_notifier'
snps_udc_plat.c:(.text+0x2c4416): undefined reference to `extcon_get_state'
snps_udc_plat.c:(.text+0x2c44f7): undefined reference to `extcon_unregister_notifier'

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Randy Dunlap 2017-09-11 09:24:15 -07:00 committed by Felipe Balbi
parent 9ada8c5820
commit 641663a19f
1 changed files with 1 additions and 0 deletions
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1
drivers/usb/gadget/udc/Kconfig
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@ -273,6 +273,7 @@ config USB_SNP_CORE
config USB_SNP_UDC_PLAT
tristate "Synopsys USB 2.0 Device controller"
depends on USB_GADGET && OF && HAS_DMA
depends on EXTCON || EXTCON=n
select USB_GADGET_DUALSPEED
select USB_SNP_CORE
default ARCH_BCM_IPROC