Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 47f82f1a authored by Heikki Krogerus's avatar Heikki Krogerus Committed by Greg Kroah-Hartman
Browse files

dmaengine: hsu: introduce stubs for the exported functions 



This allows UART drivers to register HSU DMA Engine without
being forced to use ifdefs.

Signed-off-by: default avatarHeikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: default avatarVinod Koul <vinod.koul@intel.com>
Acked-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent ec2f1b67

include/linux/dma/hsu.h

+10 −0
Original line number Diff line number Diff line
@@ -38,11 +38,21 @@ struct hsu_dma_chip { 
	struct hsu_dma_platform_data	*pdata;

};



#if IS_ENABLED(CONFIG_HSU_DMA)

/* Export to the internal users */

irqreturn_t hsu_dma_irq(struct hsu_dma_chip *chip, unsigned short nr);



/* Export to the platform drivers */

int hsu_dma_probe(struct hsu_dma_chip *chip);

int hsu_dma_remove(struct hsu_dma_chip *chip);

#else

static inline irqreturn_t hsu_dma_irq(struct hsu_dma_chip *chip,

				      unsigned short nr)

{

	return IRQ_NONE;

}

static inline int hsu_dma_probe(struct hsu_dma_chip *chip) { return -ENODEV; }

static inline int hsu_dma_remove(struct hsu_dma_chip *chip) { return 0; }

#endif /* CONFIG_HSU_DMA */



#endif /* _DMA_HSU_H */