[PATCH v8 06/18] dmaengine: Add helper function to convert direction value to text
From: Peter Ujfalusi <hidden>
Date: 2019-12-23 11:05:20
Also in:
dmaengine, linux-devicetree, lkml
Subsystem:
dma generic offload engine subsystem, the rest · Maintainers:
Vinod Koul, Linus Torvalds
dmaengine_get_direction_text() can be useful when the direction is printed out. The text is easier to comprehend than the number. Signed-off-by: Peter Ujfalusi <redacted> --- include/linux/dmaengine.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 7f9a7150a632..9852ba7399db 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h@@ -1537,4 +1537,23 @@ static inline struct dma_chan return __dma_request_channel(mask, fn, fn_param, NULL); } + +static inline char * +dmaengine_get_direction_text(enum dma_transfer_direction dir) +{ + switch (dir) { + case DMA_DEV_TO_MEM: + return "DEV_TO_MEM"; + case DMA_MEM_TO_DEV: + return "MEM_TO_DEV"; + case DMA_MEM_TO_MEM: + return "MEM_TO_MEM"; + case DMA_DEV_TO_DEV: + return "DEV_TO_DEV"; + default: + break; + } + + return "invalid"; +} #endif /* DMAENGINE_H */
--
Peter
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
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