This is a note to let you know that I've just added the patch titled
tty: serial: sh-sci: Fix Rx on RZ/G2L SCI
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:
tty-serial-sh-sci-fix-rx-on-rz-g2l-sci.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.
>From f92ed0cd9328aed918ebb0ebb64d259eccbcc6e7 Mon Sep 17 00:00:00 2001
From: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
Date: Tue, 21 Mar 2023 11:47:50 +0000
Subject: tty: serial: sh-sci: Fix Rx on RZ/G2L SCI
From: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
commit f92ed0cd9328aed918ebb0ebb64d259eccbcc6e7 upstream.
SCI IP on RZ/G2L alike SoCs do not need regshift compared to other SCI
IPs on the SH platform. Currently, it does regshift and configuring Rx
wrongly. Drop adding regshift for RZ/G2L alike SoCs.
Fixes: dfc80387aefb ("serial: sh-sci: Compute the regshift value for SCI ports")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230321114753.75038-3-biju.das.jz@xxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/tty/serial/sh-sci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2968,7 +2968,7 @@ static int sci_init_single(struct platfo
port->flags = UPF_FIXED_PORT | UPF_BOOT_AUTOCONF | p->flags;
port->fifosize = sci_port->params->fifosize;
- if (port->type == PORT_SCI) {
+ if (port->type == PORT_SCI && !dev->dev.of_node) {
if (sci_port->reg_size >= 0x20)
port->regshift = 2;
else
Patches currently in stable-queue which might be from biju.das.jz@xxxxxxxxxxxxxx are
queue-5.15/tty-serial-sh-sci-fix-transmit-end-interrupt-handler.patch
queue-5.15/tty-serial-sh-sci-fix-rx-on-rz-g2l-sci.patch
