spi: spi_ll_stm32: (fix) Clear OVR bit condition
The OVR condition in the Status Register requires a
particular sequence in order to be cleared. If not
done properly it stays set forever.
Signed-off-by: Armando Visconti <armando.visconti@st.com>
diff --git a/drivers/spi/spi_ll_stm32.c b/drivers/spi/spi_ll_stm32.c
index f328b70..e617319 100644
--- a/drivers/spi/spi_ll_stm32.c
+++ b/drivers/spi/spi_ll_stm32.c
@@ -55,6 +55,12 @@
if (sr & SPI_STM32_ERR_MSK) {
SYS_LOG_ERR("%s: err=%d", __func__,
sr & SPI_STM32_ERR_MSK);
+
+ /* OVR error must be explicitly cleared */
+ if (LL_SPI_IsActiveFlag_OVR(spi)) {
+ LL_SPI_ClearFlag_OVR(spi);
+ }
+
return -EIO;
}
