blob: 95448ed75f7c3ab7d80006fc8dfd825b8eaa33ec [file] [log] [blame]
From 605282473a9d30883cd53ac235957a26589e4437 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Wed, 11 Jan 2017 16:43:23 +0200
Subject: [PATCH 171/255] serial: sh-sci: Set the SCSCR TE and RE bits in the
driver
The Transmit Enable and Receive Enable bits are set in the scscr field
of all instances of the sh-sci platform data. Set them in the driver
directly to prepare for their removal from platform data.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 9f8325b3c19cf2e5df6b9624480748421104d00c)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
drivers/tty/serial/sh-sci.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2345,7 +2345,8 @@ done:
serial_port_out(port, SCFCR, ctrl);
}
- scr_val |= s->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0);
+ scr_val |= SCSCR_RE | SCSCR_TE |
+ (s->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0));
dev_dbg(port->dev, "SCSCR 0x%x\n", scr_val);
serial_port_out(port, SCSCR, scr_val);
if ((srr + 1 == 5) &&
@@ -2799,7 +2800,8 @@ static void serial_console_write(struct
/* first save SCSCR then disable interrupts, keep clock source */
ctrl = serial_port_in(port, SCSCR);
- ctrl_temp = (sci_port->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0)) |
+ ctrl_temp = SCSCR_RE | SCSCR_TE |
+ (sci_port->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0)) |
(ctrl & (SCSCR_CKE1 | SCSCR_CKE0));
serial_port_out(port, SCSCR, ctrl_temp);
@@ -3002,7 +3004,6 @@ sci_parse_dt(struct platform_device *pde
p->flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF;
p->type = SCI_OF_TYPE(match->data);
p->regtype = SCI_OF_REGTYPE(match->data);
- p->scscr = SCSCR_RE | SCSCR_TE;
if (of_find_property(np, "uart-has-rtscts", NULL))
p->capabilities |= SCIx_HAVE_RTSCTS;
@@ -3170,9 +3171,9 @@ static int __init early_console_setup(st
sci_ports[0].cfg = &port_cfg;
sci_ports[0].cfg->type = type;
sci_probe_regmap(sci_ports[0].cfg);
- port_cfg.scscr = sci_serial_in(&sci_ports[0].port, SCSCR) |
- SCSCR_RE | SCSCR_TE;
- sci_serial_out(&sci_ports[0].port, SCSCR, port_cfg.scscr);
+ port_cfg.scscr = sci_serial_in(&sci_ports[0].port, SCSCR);
+ sci_serial_out(&sci_ports[0].port, SCSCR,
+ SCSCR_RE | SCSCR_TE | port_cfg.scscr);
device->con->write = serial_console_write;
return 0;