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serial: sh-sci: Add DT support for dedicated RTS/CTS

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Add support for indicating the availability of dedicated lines for
RTS/CTS hardware flow control, using the standard "uart-has-rtscts" DT
property.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Geert Uytterhoeven 2016-06-03 12:00:11 +02:00 committed by Greg Kroah-Hartman
parent 33f50ffc25
commit 861a70abb4
1 changed files with 3 additions and 0 deletions
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3
drivers/tty/serial/sh-sci.c
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@ -2999,6 +2999,9 @@ sci_parse_dt(struct platform_device *pdev, unsigned int *dev_id)
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;
return p;
}