修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/include/linux/dma-direction.h
..
..
@@ -9,4 +9,10 @@
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 	DMA_NONE = 3,
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 };
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-#endif
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+static inline int valid_dma_direction(enum dma_data_direction dir)
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+{
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+	return dir == DMA_BIDIRECTIONAL || dir == DMA_TO_DEVICE ||
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+		dir == DMA_FROM_DEVICE;
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+}
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+
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+#endif /* _LINUX_DMA_DIRECTION_H */