linux-kernel - Re: [PATCH] pinctrl: samsung: Allow pin value to be initialized using pinfunc.

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Message-ID: <20131120125121.GB2674@sirena.org.uk>
Date:	Wed, 20 Nov 2013 12:51:21 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Stephen Warren <swarren@...dotorg.org>
Cc:	Kyungmin Park <kmpark@...radead.org>,
	Doug Anderson <dianders@...omium.org>,
	devicetree@...r.kernel.org,
	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
	Heiko Stübner <heiko@...ech.de>,
	Tomasz Figa <t.figa@...sung.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Thomas Abraham <thomas.abraham@...aro.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: [PATCH] pinctrl: samsung: Allow pin value to be initialized
 using pinfunc.

On Tue, Nov 19, 2013 at 05:07:04PM -0700, Stephen Warren wrote:
> On 11/19/2013 05:02 PM, Kyungmin Park wrote:

> > Some pins are not connected (NC). At that cases, there's no drivers to
> > handle it. To reduce power leakage, it sets proper configuration with
> > values instead of reset values.

> Hmm. Shouldn't board firmware configure that kind of thing?

> (Of course, some firmware is starting to use DT to configure itself, so
> that just shifts the DT discussion, but anyway).

Even if it's not sometimes the firmware is intended to be thin with
configuration punted to the OS.

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