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usb: musb: provide empty dma_controller_create() in PIO mode 

Add a dma_controller_create() returning NULL so a few ifdefs can
dropped.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Sebastian Andrzej Siewior 2013-06-19 17:38:12 +02:00 committed by Felipe Balbi
parent 66c01883ef
commit a6a20885f1
1 changed files with 11 additions and 0 deletions
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11
drivers/usb/musb/musb_dma.h
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@ -175,9 +175,20 @@ struct dma_controller {
/* called after channel_program(), may indicate a fault */
extern void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit);
#ifdef CONFIG_MUSB_PIO_ONLY
static inline struct dma_controller *dma_controller_create(struct musb *m,
void __iomem *io)
{
return NULL;
}
static inline void dma_controller_destroy(struct dma_controller *d) { }
#else
extern struct dma_controller *dma_controller_create(struct musb *, void __iomem *);
extern void dma_controller_destroy(struct dma_controller *);
#endif
#endif /* __MUSB_DMA_H__ */