This is a note to let you know that I've just added the patch titled
serial: fsl_lpuart: Fill in rs485_supported
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
serial-fsl_lpuart-fill-in-rs485_supported.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c12622640ab97a9adeda65431ad1162821f173ce
Author: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
Date: Mon Jun 6 13:04:12 2022 +0300
serial: fsl_lpuart: Fill in rs485_supported
[ Upstream commit 07481f448b635d7cebb92d5940f5bea5c4395a26 ]
Add information on supported serial_rs485 features.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220606100433.13793-16-ilpo.jarvinen@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Stable-dep-of: 76bad3f88750 ("tty: serial: fsl_lpuart: don't break the on-going transfer when global reset")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 44ed4285e1ef..1d13d88ea363 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -2644,6 +2644,11 @@ static struct uart_driver lpuart_reg = {
.cons = LPUART_CONSOLE,
};
+static const struct serial_rs485 lpuart_rs485_supported = {
+ .flags = SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND | SER_RS485_RTS_AFTER_SEND,
+ /* delay_rts_* and RX_DURING_TX are not supported */
+};
+
static int lpuart_probe(struct platform_device *pdev)
{
const struct lpuart_soc_data *sdata = of_device_get_match_data(&pdev->dev);
@@ -2683,6 +2688,7 @@ static int lpuart_probe(struct platform_device *pdev)
sport->port.rs485_config = lpuart32_config_rs485;
else
sport->port.rs485_config = lpuart_config_rs485;
+ sport->port.rs485_supported = &lpuart_rs485_supported;
sport->ipg_clk = devm_clk_get(&pdev->dev, "ipg");
if (IS_ERR(sport->ipg_clk)) {
