The following series includes some fixes and improvements around RS485 in the serial core and UART drivers: Patch 1: Do not hold the port lock when setting rx-during-tx GPIO Patch 2: set missing supported flag for RX during TX GPIO Patch 3: fix sanitizing check for RTS settings Patch 4: make sure RS485 is cannot be enabled when it is not supported Patch 5: imx: do not set RS485 enabled if it is not supported Patch 6: omap: do not override settings for rs485 support Patch 7: exar: set missing RS485 supported flag Changes in v4: - add comment for function uart_set_rs485_gpios after hint from Hugo - correct commit message as pointed out by Hugo - rephrase commit messages - add patch 7 after discussion with Ilpo Changes in v3 - Drop patch "Get rid of useless wrapper pl011_get_rs485_mode()" as requested by Greg Changes in v2: - add missing 'Fixes' tags as requested by Greg - corrected a typo as pointed out by Hugo - fix issue in imx driver in the serial core as suggested by Uwe - partly rephrase some commit messages - add patch 7 Lino Sanfilippo (7): serial: Do not hold the port lock when setting rx-during-tx GPIO serial: core: set missing supported flag for RX during TX GPIO serial: core: fix sanitizing check for RTS settings serial: core: make sure RS485 cannot be enabled when it is not supported serial: core, imx: do not set RS485 enabled if it is not supported serial: omap: do not override settings for RS485 support serial: 8250_exar: Set missing rs485_supported flag drivers/tty/serial/8250/8250_exar.c | 5 +-- drivers/tty/serial/imx.c | 8 ----- drivers/tty/serial/omap-serial.c | 8 ++--- drivers/tty/serial/serial_core.c | 53 +++++++++++++++++++++-------- drivers/tty/serial/stm32-usart.c | 5 +-- 5 files changed, 46 insertions(+), 33 deletions(-) base-commit: 58720809f52779dc0f08e53e54b014209d13eebb -- 2.40.1