This is a note to let you know that I've just added the patch titled
tty: serial: meson: retrieve port FIFO size from DT
to the 5.10-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:
tty-serial-meson-retrieve-port-fifo-size-from-dt.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit edbcc63ffa6dee7fad8a540dd84edce15833a079
Author: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Date: Tue May 18 09:58:32 2021 +0200
tty: serial: meson: retrieve port FIFO size from DT
[ Upstream commit 27d44e05d7b85d9d4cfe0a3c0663ea49752ece93 ]
Now the DT bindings has a property to get the FIFO size for a particular port,
retrieve it and use to setup the FIFO interrupts threshold.
Reviewed-by: Kevin Hilman <khilman@xxxxxxxxxxxx>
Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210518075833.3736038-3-narmstrong@xxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Stable-dep-of: 2a1d728f20ed ("tty: serial: meson: fix hard LOCKUP on crtscts mode")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
index bb66a3f06626c..c44ab21a9b7dd 100644
--- a/drivers/tty/serial/meson_uart.c
+++ b/drivers/tty/serial/meson_uart.c
@@ -765,6 +765,8 @@ static int meson_uart_probe(struct platform_device *pdev)
of_property_read_u32(pdev->dev.of_node, "fifo-size", &fifosize);
has_rtscts = of_property_read_bool(pdev->dev.of_node, "uart-has-rtscts");
+ of_property_read_u32(pdev->dev.of_node, "fifo-size", &fifosize);
+
if (meson_ports[pdev->id]) {
dev_err(&pdev->dev, "port %d already allocated\n", pdev->id);
return -EBUSY;
