To avoid unnecessary preset initial state chipselect lines for SPI, set it to
inactive state when adding devices to the system.
Signed-off-by: Alexander Shiyan <shc_work@xxxxxxx>
---
drivers/spi/imx_spi.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/spi/imx_spi.c b/drivers/spi/imx_spi.c
index 3b33b66..42358f2 100644
--- a/drivers/spi/imx_spi.c
+++ b/drivers/spi/imx_spi.c
@@ -145,6 +145,10 @@ struct spi_imx_devtype_data {
static int imx_spi_setup(struct spi_device *spi)
{
+ struct imx_spi *imx = container_of(spi->master, struct imx_spi, master);
+
+ imx->chipselect(spi, 0);
+
debug("%s mode 0x%08x bits_per_word: %d speed: %d\n",
__FUNCTION__, spi->mode, spi->bits_per_word,
spi->max_speed_hz);
--
1.7.3.4
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