From: Hugo Villeneuve <hvilleneuve@xxxxxxxxxxxx>
Hello,
this patch series brings additional patches to fix some FIFO issues when
backporting to linux-5.15.y for the sc16is7xx driver.
Commit ("serial: sc16is7xx: add missing support for rs485 devicetree
properties") is required when using RS-485.
Commit ("serial: sc16is7xx: refactor FIFO access functions
to increase commonality") is a prerequisite for commit ("serial:
sc16is7xx: fix TX fifo corruption"). Altough it is not strictly
necessary, it makes backporting easier.
I have tested the changes on a custom board with two SC16IS752 DUART over
a SPI interface using a Variscite IMX8MN NANO SOM. The four UARTs are
configured in RS-485 mode.
Thank you.
Hugo Villeneuve (4):
serial: sc16is7xx: add missing support for rs485 devicetree properties
serial: sc16is7xx: refactor FIFO access functions to increase
commonality
serial: sc16is7xx: fix TX fifo corruption
serial: sc16is7xx: fix invalid FIFO access with special register set
drivers/tty/serial/sc16is7xx.c | 38 ++++++++++++++++++++--------------
1 file changed, 22 insertions(+), 16 deletions(-)
--
2.39.5
