[PATCH v3 0/6] Fixes and improvements for RS485

From: Lino Sanfilippo
Date: Wed Oct 11 2023 - 14:16:26 EST


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: Get rid of useless wrapper pl011_get_rs485_mode()
Patch 3: set missing supported flag for RX during TX GPIO
Patch 4: fix sanitizing check for RTS settings
Patch 5: make sure RS485 is cannot be enabled when it is not supported
Patch 6: imx: do not set RS485 enabled if it is not supported
Patch 7: omap: do not override settings for rs485 support

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

Changes in v3
- Drop patch "Get rid of useless wrapper pl011_get_rs485_mode()" as
requested by Greg

Lino Sanfilippo (6):
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

drivers/tty/serial/imx.c | 8 ------
drivers/tty/serial/omap-serial.c | 8 +++---
drivers/tty/serial/serial_core.c | 48 ++++++++++++++++++++++----------
drivers/tty/serial/stm32-usart.c | 5 +---
4 files changed, 38 insertions(+), 31 deletions(-)


base-commit: 94f6f0550c625fab1f373bb86a6669b45e9748b3
--
2.40.1