linux-kernel - Re: [PATCHv3 07/14] HSI: Add common DT binding for HSI client devices

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Date:	Fri, 25 Apr 2014 20:25:36 +0200
From:	Sebastian Reichel <sre@...nel.org>
To:	Pavel Machek <pavel@....cz>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Shubhrajyoti Datta <omaplinuxkernel@...il.com>,
	Carlos Chinea <cch.devel@...il.com>,
	Tony Lindgren <tony@...mide.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
	Pali Rohár <pali.rohar@...il.com>,
	Ивайло Димитров 
	<freemangordon@....bg>,
	Joni Lapilainen <joni.lapilainen@...il.com>,
	Aaro Koskinen <aaro.koskinen@....fi>
Subject: Re: [PATCHv3 07/14] HSI: Add common DT binding for HSI client devices

On Sat, Apr 19, 2014 at 09:16:12PM +0200, Pavel Machek wrote:
> On Sat 2014-03-29 01:31:43, Sebastian Reichel wrote:
> > Implement and document generic DT bindings for HSI clients.
> > 
> > Signed-off-by: Sebastian Reichel <sre@...nel.org>
> 
> Reviewed-by: Pavel Machek <pavel@....cz>
> 
> > diff --git a/drivers/hsi/hsi.c b/drivers/hsi/hsi.c
> > index 07e1639..5973906 100644
> > --- a/drivers/hsi/hsi.c
> > +++ b/drivers/hsi/hsi.c
> > @@ -26,8 +26,14 @@
> >  #include <linux/slab.h>
> >  #include <linux/string.h>
> >  #include <linux/notifier.h>
> > +#include <linux/of.h>
> > +#include <linux/of_device.h>
> >  #include "hsi_core.h"
> 
> 
> > +	err = hsi_of_property_parse_mode(client, "hsi-mode", &mode);
> > +	if (err) {
> > +		err = hsi_of_property_parse_mode(client, "hsi-rx-mode",
> > +						 &cl->rx_cfg.mode);
> > +		if (err)
> > +			goto err;
> > +
> > +		err = hsi_of_property_parse_mode(client, "hsi-tx-mode",
> > +						 &cl->tx_cfg.mode);
> > +		if (err)
> > +			goto err;
> 
> Will this need some #ifdef CONFIG_OF?

It would only be needed to reduce the amount of kernel code for
disabled Device Tree. I don't think its worth it, since there is no
platform in the mainline kernel, which uses HSI without DT.

-- Sebastian

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