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tty/serial: of_serial: add DT alias ID handling 

Add support for alias parsing from the DT. This allows for consistent
tty numbering.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: linux-serial@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Rob Herring 2015-01-26 22:50:07 -06:00 committed by Greg Kroah-Hartman
parent e9cef8625e
commit 6d01bb9dc8
1 changed files with 4 additions and 0 deletions
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4
drivers/tty/serial/of_serial.c
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@ -128,6 +128,10 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
if (of_find_property(np, "no-loopback-test", NULL))
port->flags |= UPF_SKIP_TEST;
ret = of_alias_get_id(np, "serial");
if (ret >= 0)
port->line = ret;
port->dev = &ofdev->dev;
switch (type) {