drivers: spi_oc_simple: 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_oc_simple.c b/drivers/spi/spi_oc_simple.c
index 6bbdf60..18cfb94 100644
--- a/drivers/spi/spi_oc_simple.c
+++ b/drivers/spi/spi_oc_simple.c
@@ -78,10 +78,6 @@
spi->ctx.config = config;
- if (config->cs) {
- spi_context_cs_configure(&spi->ctx);
- }
-
return 0;
}
@@ -185,11 +181,18 @@
int spi_oc_simple_init(const struct device *dev)
{
+ int err;
const struct spi_oc_simple_cfg *info = dev->config;
+ struct spi_oc_simple_data *data = dev->data;
/* Clear chip selects */
sys_write8(0, SPI_OC_SIMPLE_SPSS(info));
+ err = spi_context_cs_configure_all(&data->ctx);
+ if (err < 0) {
+ return err;
+ }
+
/* Make sure the context is unlocked */
spi_context_unlock_unconditionally(&SPI_OC_SIMPLE_DATA(dev)->ctx);
@@ -212,6 +215,7 @@
static struct spi_oc_simple_data spi_oc_simple_data_##inst = { \
SPI_CONTEXT_INIT_LOCK(spi_oc_simple_data_##inst, ctx), \
SPI_CONTEXT_INIT_SYNC(spi_oc_simple_data_##inst, ctx), \
+ SPI_CONTEXT_CS_GPIOS_INITIALIZE(DT_DRV_INST(inst), ctx) \
}; \
\
DEVICE_DT_INST_DEFINE(inst, \
