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drivers: spi: keep SPI enabled if SPI_HOLD_ON_CS is used 

Keep the SPI enabled when performing multiple transaction with
SPI_HOLD_ON_CS.
In such case, the end of transaction is marked by application calling
spi_release.

Signed-off-by: Michele Sardo <msmttchr@gmail.com>
This commit is contained in:
Michele Sardo 2024-03-01 16:32:20 +01:00 committed by Johan Hedberg
parent ceff785434
commit ca4ff1e6fe
1 changed files with 6 additions and 2 deletions
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8
drivers/spi/spi_ll_stm32.c
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@ -448,9 +448,9 @@ static void spi_stm32_complete(const struct device *dev, int status)
{
const struct spi_stm32_config *cfg = dev->config;
SPI_TypeDef *spi = cfg->spi;
#ifdef CONFIG_SPI_STM32_INTERRUPT
struct spi_stm32_data *data = dev->data;
#ifdef CONFIG_SPI_STM32_INTERRUPT
ll_func_disable_int_tx_empty(spi);
ll_func_disable_int_rx_not_empty(spi);
ll_func_disable_int_errors(spi);
@ -493,7 +493,9 @@ static void spi_stm32_complete(const struct device *dev, int status)
}
#endif /* DT_HAS_COMPAT_STATUS_OKAY(st_stm32h7_spi) */
ll_func_disable_spi(spi);
if (!(data->ctx.config->operation & SPI_HOLD_ON_CS)) {
ll_func_disable_spi(spi);
}
#ifdef CONFIG_SPI_STM32_INTERRUPT
spi_context_complete(&data->ctx, dev, status);
@ -687,8 +689,10 @@ static int spi_stm32_release(const struct device *dev,
const struct spi_config *config)
{
struct spi_stm32_data *data = dev->data;
const struct spi_stm32_config *cfg = dev->config;
spi_context_unlock_unconditionally(&data->ctx);
ll_func_disable_spi(cfg->spi);
return 0;
}