6.1-stable review patch. If anyone has any objections, please let me know.
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From: Hugo Villeneuve hvilleneuve@dimonoff.com
commit b4a778303ea0fcabcaff974721477a5743e1f8ec upstream.
Retrieve rs485 devicetree properties on registration of sc16is7xx ports in case they are attached to an rs485 transceiver.
Signed-off-by: Hugo Villeneuve hvilleneuve@dimonoff.com Reviewed-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Reviewed-by: Lech Perczak lech.perczak@camlingroup.com Tested-by: Lech Perczak lech.perczak@camlingroup.com Link: https://lore.kernel.org/r/20230807214556.540627-7-hugo@hugovil.com Cc: Hugo Villeneuve hugo@hugovil.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/tty/serial/sc16is7xx.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -1556,6 +1556,10 @@ static int sc16is7xx_probe(struct device goto out_ports; }
+ ret = uart_get_rs485_mode(&s->p[i].port); + if (ret) + goto out_ports; + /* Disable all interrupts */ sc16is7xx_port_write(&s->p[i].port, SC16IS7XX_IER_REG, 0); /* Disable TX/RX */