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spi: Add a prototype for exported spi_set_cs_timing()

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Compiler is not happy about spi_set_cs_timing() prototype.

drivers/spi/spi.c:3016:6: warning: no previous prototype for ‘spi_set_cs_timing’ [-Wmissing-prototypes]
 void spi_set_cs_timing(struct spi_device *spi, u8 setup, u8 hold,
      ^~~~~~~~~~~~~~~~~

Let's add it to the header.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Andy Shevchenko 2019-06-15 20:47:37 +03:00 • committed by Mark Brown
commit 36f34737ff
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include/linux/spi/spi.h
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@ -980,6 +980,8 @@ static inline void spi_message_free(struct spi_message *m)
kfree(m);
}
extern void spi_set_cs_timing(struct spi_device *spi, u8 setup, u8 hold, u8 inactive_dly);
extern int spi_setup(struct spi_device *spi);
extern int spi_async(struct spi_device *spi, struct spi_message *message);
extern int spi_async_locked(struct spi_device *spi,