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drivers: serial: stm32wba: Suspension required before stop in DMA Tx abort

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In a previous change, STM32U5 GPDMA specific behavior was set into a
specific configuration applying only to few devices impacted by a specific
silicon erratum.
As part of this change, dma suspension before dma stop was set to apply
to the specific erratum workaround.
It appears, this was wrong and dma suspension before dma stop should
be done on all devices compatible with stm32u5 dma. This fix re-instantiate
the correct behavior.

Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>
This commit is contained in:
Erwan Gouriou 2023-11-30 11:35:11 +01:00 • committed by Fabio Baltieri
commit d2ea9e4806
1 changed files with 1 additions and 1 deletions
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2
drivers/serial/uart_stm32.c
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@ -1633,7 +1633,7 @@ static int uart_stm32_async_tx_abort(const struct device *dev)
data->dma_tx.counter = tx_buffer_length - stat.pending_length;
}
#ifdef CONFIG_UART_STM32U5_ERRATA_DMAT
#if DT_HAS_COMPAT_STATUS_OKAY(st_stm32u5_dma)
dma_suspend(data->dma_tx.dma_dev, data->dma_tx.dma_channel);
#endif
dma_stop(data->dma_tx.dma_dev, data->dma_tx.dma_channel);