[PATCH 2/6] usb: chipidea: USB_CHIPIDEA_UDC should depend on HAS_DMA

[Geert Uytterhoeven]

If NO_DMA=y:

drivers/built-in.o: In function `dma_set_coherent_mask':
include/linux/dma-mapping.h:93: undefined reference to `dma_supported'
drivers/built-in.o: In function `destroy_eps':
drivers/usb/chipidea/udc.c:1598: undefined reference to `dma_pool_free'
drivers/built-in.o: In function `free_pending_td':
drivers/usb/chipidea/udc.c:540: undefined reference to `dma_pool_free'
drivers/built-in.o: In function `add_td_to_list':
drivers/usb/chipidea/udc.c:383: undefined reference to `dma_pool_alloc'
drivers/built-in.o: In function `_ep_nuke':
drivers/usb/chipidea/udc.c:639: undefined reference to `dma_pool_free'
drivers/built-in.o: In function `udc_stop':
drivers/usb/chipidea/udc.c:1855: undefined reference to `dma_pool_destroy'
drivers/built-in.o: In function `init_eps':
drivers/usb/chipidea/udc.c:1564: undefined reference to `dma_pool_alloc'
drivers/built-in.o: In function `udc_start':
drivers/usb/chipidea/udc.c:1766: undefined reference to `dma_pool_create'
drivers/usb/chipidea/udc.c:1835: undefined reference to `dma_pool_destroy'
drivers/usb/chipidea/udc.c:1837: undefined reference to `dma_pool_destroy'
drivers/built-in.o: In function `ep_free_request':
drivers/usb/chipidea/udc.c:1268: undefined reference to `dma_pool_free'

Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
---
 drivers/usb/chipidea/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig
index eb2aa2e..189dbc6 100644
--- a/drivers/usb/chipidea/Kconfig
+++ b/drivers/usb/chipidea/Kconfig
@@ -12,7 +12,7 @@ if USB_CHIPIDEA
 
 config USB_CHIPIDEA_UDC
 	bool "ChipIdea device controller"
-	depends on USB_GADGET=y || USB_CHIPIDEA=m
+	depends on (USB_GADGET=y || USB_CHIPIDEA=m) && HAS_DMA
 	help
 	  Say Y here to enable device controller functionality of the
 	  ChipIdea driver.
-- 
1.7.9.5

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