Messages in this thread Patch in this message | | | From | "Ivan T. Ivanov" <> | Subject | [RFC PATCH] spi: Ensure that CS line is in non-active state after setup | Date | Fri, 6 Mar 2015 17:45:15 +0200 |
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When drivers didn't provide setup() method, SPI core should ensure that CS line is driven in non-active state after spi_setup().
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> --- drivers/spi/spi.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index c64a3e5..bfba2d9 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -1895,6 +1895,8 @@ int spi_setup(struct spi_device *spi)
if (spi->master->setup) status = spi->master->setup(spi); + else + spi_set_cs(spi, false);
dev_dbg(&spi->dev, "setup mode %d, %s%s%s%s%u bits/w, %u Hz max --> %d\n", (int) (spi->mode & (SPI_CPOL | SPI_CPHA)), -- 1.9.1
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