serial: Add common rs485 device tree parsing function

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Several drivers have the same device tree parsing code. Create
a common helper function for it.

This patch bases on work done by Sascha Hauer.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Uwe Kleine-König 2017-09-13 10:18:27 +02:00 • committed by Greg Kroah-Hartman

parent c45e2d2547

commit ef838a81dd

2 changed files with 41 additions and 0 deletions

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36

drivers/tty/serial/serial_core.c

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5

include/linux/serial_core.h

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