drivers: spi_mcux_dspi: initialize all cs gpios during init
In case when we have multiple devices connected to the
one SPI interface the initial state of CS gpios after
MCU reset is floating and it might be low that prevents us from
communicating between particular devices. Fix that by
initializing all provided cs gpios and setting them as inactive.
Signed-off-by: Bartosz Bilas <bartosz.bilas@hotmail.com>
diff --git a/drivers/spi/spi_mcux_dspi.c b/drivers/spi/spi_mcux_dspi.c
index 2153964..d5ae578 100644
--- a/drivers/spi/spi_mcux_dspi.c
+++ b/drivers/spi/spi_mcux_dspi.c
@@ -654,7 +654,6 @@
#endif
data->ctx.config = spi_cfg;
- spi_context_cs_configure(&data->ctx);
return 0;
}
@@ -746,6 +745,7 @@
static int spi_mcux_init(const struct device *dev)
{
+ int err;
struct spi_mcux_data *data = dev->data;
#ifdef CONFIG_DSPI_MCUX_EDMA
enum dma_channel_filter spi_filter = DMA_CHANNEL_NORMAL;
@@ -763,6 +763,12 @@
config->irq_config_func(dev);
#endif
data->dev = dev;
+
+ err = spi_context_cs_configure_all(&data->ctx);
+ if (err < 0) {
+ return err;
+ }
+
spi_context_unlock_unconditionally(&data->ctx);
return 0;
@@ -856,6 +862,7 @@
static struct spi_mcux_data spi_mcux_data_##id = { \
SPI_CONTEXT_INIT_LOCK(spi_mcux_data_##id, ctx), \
SPI_CONTEXT_INIT_SYNC(spi_mcux_data_##id, ctx), \
+ SPI_CONTEXT_CS_GPIOS_INITIALIZE(DT_DRV_INST(id), ctx) \
TX_DMA_CONFIG(id) RX_DMA_CONFIG(id) \
}; \
static const struct spi_mcux_config spi_mcux_config_##id = { \
