Commit 28eb0ec6 authored Mar 21, 2023 by Biju Das Committed by Greg Kroah-Hartman Apr 20, 2023

tty: serial: sh-sci: Fix Rx on RZ/G2L SCI



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: dfc80387 ("serial: sh-sci: Compute the regshift value for SCI ports")
Cc: stable@vger.kernel.org
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230321114753.75038-3-biju.das.jz@bp.renesas.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent cc4c2fc2

drivers/tty/serial/sh-sci.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2980,7 +2980,7 @@ static int sci_init_single(struct platform_device *dev,
		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