[RFC PATCH 10/12] serial/sh-sci: Fix earlyprintk / earlycon.

- earlyprintk having fault.
- fix shortname conflict.
- fix SCI regshift in SH4.

Signed-off-by: Yoshinori Sato <[email protected]>
---
 drivers/tty/serial/sh-sci.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 7c9457962a3d..541466b23b45 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2721,7 +2721,7 @@ static int sci_remap_port(struct uart_port *port)
 	if (port->membase)
 		return 0;
 
-	if (port->dev->of_node || (port->flags & UPF_IOREMAP)) {
+	if ((port->dev && port->dev->of_node) || (port->flags & UPF_IOREMAP)) {
 		port->membase = ioremap(port->mapbase, sport->reg_size);
 		if (unlikely(!port->membase)) {
 			dev_err(port->dev, "can't remap port#%d\n", port->line);
@@ -3507,6 +3507,10 @@ static int __init early_console_setup(struct earlycon_device *device,
 	if (!device->port.membase)
 		return -ENODEV;
 
+	if (type == PORT_SCI &&
+	    (IS_ENABLED(CONFIG_CPU_SH3) || IS_ENABLED(CONFIG_CPU_SH4))) {
+		device->port.regshift = 2;
+	}
 	device->port.serial_in = sci_serial_in;
 	device->port.serial_out	= sci_serial_out;
 	device->port.type = type;
@@ -3556,8 +3560,8 @@ static int __init hscif_early_console_setup(struct earlycon_device *device,
 
 OF_EARLYCON_DECLARE(sci, "renesas,sci", sci_early_console_setup);
 OF_EARLYCON_DECLARE(scif, "renesas,scif", scif_early_console_setup);
-OF_EARLYCON_DECLARE(scif, "renesas,scif-r7s9210", rzscifa_early_console_setup);
-OF_EARLYCON_DECLARE(scif, "renesas,scif-r9a07g044", rzscifa_early_console_setup);
+OF_EARLYCON_DECLARE(rzscif, "renesas,scif-r7s9210", rzscifa_early_console_setup);
+OF_EARLYCON_DECLARE(rzscif, "renesas,scif-r9a07g044", rzscifa_early_console_setup);
 OF_EARLYCON_DECLARE(scifa, "renesas,scifa", scifa_early_console_setup);
 OF_EARLYCON_DECLARE(scifb, "renesas,scifb", scifb_early_console_setup);
 OF_EARLYCON_DECLARE(hscif, "renesas,hscif", hscif_early_console_setup);
-- 
2.39.2