This allows UART drivers to register HSU DMA Engine without
being forced to use ifdefs.
Signed-off-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
---
include/linux/dma/hsu.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/include/linux/dma/hsu.h b/include/linux/dma/hsu.h
index 234393a..88c4326 100644
--- a/include/linux/dma/hsu.h
+++ b/include/linux/dma/hsu.h
@@ -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 0; }
+static inline int hsu_dma_remove(struct hsu_dma_chip *chip) { return 0; }
+#endif /* CONFIG_HSU_DMA */
#endif /* _DMA_HSU_H */
--
2.5.1
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