Commit 3239fd31 authored Dec 05, 2014 by Lucas Stach Committed by Greg Kroah-Hartman Feb 03, 2015

serial: of-serial: fetch line number from DT



The general agreed way to specify a fixed line number
for a serial console is to provide a "serial" alias
in the devicetree. Start parsing this property in
of_serial.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent c3bda295

drivers/tty/serial/of_serial.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -102,6 +102,11 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
		if (of_property_read_u32(np, "fifo-size", &prop) == 0)
		port->fifosize = prop;

		/* Check for a fixed line number */
		ret = of_alias_get_id(np, "serial");
		if (ret >= 0)
		port->line = ret;

		port->irq = irq_of_parse_and_map(np, 0);
		port->iotype = UPIO_MEM;
		if (of_property_read_u32(np, "reg-io-width", &prop) == 0) {