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spi: bitbang: Introduce spi_bitbang_init()

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Move all of the code doing struct spi_bitbang initialization, so that
it can be paired with devm_spi_register_master() in order to avoid
having to call spi_bitbang_stop() explicitly.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Chris Healy <cphealy@gmail.com>
Cc: linux-spi@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Andrey Smirnov
2019-04-02 21:01:32 -07:00
committed by Mark Brown
parent 8b797490b4
commit 45beec3519
2 changed files with 40 additions and 27 deletions
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include/linux/spi/spi_bitbang.h
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@@ -44,6 +44,7 @@ extern int spi_bitbang_setup_transfer(struct spi_device *spi,
/* start or stop queue processing */
extern int spi_bitbang_start(struct spi_bitbang *spi);
extern int spi_bitbang_init(struct spi_bitbang *spi);
extern void spi_bitbang_stop(struct spi_bitbang *spi);
#endif /* __SPI_BITBANG_H */