linux-kernel - Re: [PATCH v3 11/11] serial: sh-sci: Add DT support for dedicated RTS/CTS

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Message-ID: <c9fa56b8-da57-a6ed-0dca-c849851ac0f3@cogentembedded.com>
Date:	Fri, 3 Jun 2016 14:25:15 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Geert Uytterhoeven <geert+renesas@...der.be>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.com>,
	Peter Hurley <peter@...leysoftware.com>
Cc:	Magnus Damm <magnus.damm@...il.com>,
	Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
	Yoshinori Sato <ysato@...rs.sourceforge.jp>,
	linux-serial@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
	linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 11/11] serial: sh-sci: Add DT support for dedicated
 RTS/CTS

Hello.

On 6/3/2016 1:00 PM, Geert Uytterhoeven wrote:

> 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@...der.be>
> ---
> v3:
>   - No changes,
>
> v2:
>   - New.
> ---
>  drivers/tty/serial/sh-sci.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
> index 02b240a02dc6a593..d9cb0d70fceef07d 100644
> --- a/drivers/tty/serial/sh-sci.c
> +++ b/drivers/tty/serial/sh-sci.c
> @@ -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))

    of_property_read_bool() maybe?

> +		p->capabilities |= SCIx_HAVE_RTSCTS;
> +
>  	return p;
>  }
>

MBR, Sergei