# STM32 UART configuration

# Copyright (c) 2016 Open-RnD Sp. z o.o.
# SPDX-License-Identifier: Apache-2.0

config UART_STM32
	bool "STM32 MCU serial driver"
	default y
	depends on DT_HAS_ST_STM32_UART_ENABLED
	select SERIAL_HAS_DRIVER
	select SERIAL_SUPPORT_INTERRUPT
	# the ASYNC implementation requires a DMA controller
	select SERIAL_SUPPORT_ASYNC \
		if DT_HAS_ST_STM32_DMA_V1_ENABLED || \
		   DT_HAS_ST_STM32_DMA_V2_ENABLED || \
		   DT_HAS_ST_STM32_DMA_V2BIS_ENABLED || \
		   DT_HAS_ST_STM32U5_DMA_ENABLED
	select DMA if UART_ASYNC_API
	select RESET
	select PINCTRL
	help
	  This option enables the UART driver for STM32 family of
	  processors.
	  Say y if you wish to use serial port on STM32 MCU.

if UART_STM32

config UART_STM32U5_ERRATA_DMAT
	bool
	default y
	depends on SOC_STM32U575XX || SOC_STM32U585XX || \
		   SOC_STM32H562XX || SOC_STM32H563XX || SOC_STM32H573XX
	help
	  Handles erratum "USART does not generate DMA requests after
	  setting/clearing DMAT bit".
	  Seen in Errata Sheet 0499 § 2.19.2 and §2.20.1 for stm32u57x/u58x,
	          Errata Sheet 0565 § 2.14.1 and §2.15.1 for stm32h56x/h57x

endif