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由 Sascha Hauer 提交于
setup_transfer is mandatory if spi_bitbang_transfer is used, so check for it during initialization and not each time during runtime. Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de> Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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