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From: Mark Brown <broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Cc: Viresh Kumar <viresh.kumar-qxv4g6HH51o@public.gmane.org>,
	"linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"patches-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org"
	<patches-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	"devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org"
	<devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org>,
	"linux-mmc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-mmc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org"
	<rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>,
	Anton Vorontsov
	<anton.vorontsov-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	"kgene.kim-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org"
	<kgene.kim-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
	"ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org"
	<ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>,
	"cjb-2X9k7bc8m7Mdnm+yROfE0A@public.gmane.org"
	<cjb-2X9k7bc8m7Mdnm+yROfE0A@public.gmane.org>,
	Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
	<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
Subject: Re: [PATCH v3 6/6] mmc: sdhci-s3c: Add device tree support
Date: Sun, 1 Apr 2012 12:29:49 +0100	[thread overview]
Message-ID: <20120401112949.GA19107@sirena.org.uk> (raw)
In-Reply-To: <201203301845.07534.arnd-r2nGTMty4D4@public.gmane.org>

On Fri, Mar 30, 2012 at 06:45:07PM +0000, Arnd Bergmann wrote:
> On Friday 30 March 2012, Stephen Warren wrote:

> > > +- cd-inverted: when present, polarity on the wp gpio line is inverted
> > > +- wp-inverted: when present, polarity on the wp gpio line is inverted

> > I'm not sure about those two: Some of the GPIO bindings have flags in
> > the GPIO specifier (Tegra, ARM PL061, gpio.txt mentions the possibility
> > of polarity being in the specifier), and bit 0 of the flags is used to
> > indicate inversion. I think that either we should rely on GPIO
> > specifiers having such flags and remove these xxx-inverted properties
> > from the MMC binding, or remove that flag bit from the GPIO bindings.

> Maybe the GPIO maintainer can comment on this. My understanding is
> that not all gpio controllers support this in their bindings. If they
> do, I agree that we can remove the extra properties here.

Surely it'd be better to fix this at the GPIO controller end rather than
having a patchwork of approaches?

  parent reply	other threads:[~2012-04-01 11:29 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-31 17:56 [PATCH v3 0/6] mmc: sdhci-s3c: Rework platform data and add device tree support Thomas Abraham
2012-01-31 17:56 ` [PATCH v3 1/6] mmc: sdhci-s3c: Remove usage of clk_type member in platform data Thomas Abraham
2012-01-31 17:56 ` [PATCH v3 2/6] arm: exynos4: use 'exynos4-sdhci' as device name for sdhci controllers Thomas Abraham
2012-01-31 17:56 ` [PATCH v3 3/6] arm: samsung: remove all uses of clk_type member in sdhci platform data Thomas Abraham
2012-01-31 17:56 ` [PATCH v3 4/6] mmc: sdhci-s3c: derive transfer width host capability from max_width in " Thomas Abraham
2012-01-31 19:12   ` Sergei Shtylyov
2012-01-31 17:56 ` [PATCH v3 5/6] mmc: sdhci-s3c: Keep a copy of platform data and use it Thomas Abraham
2012-01-31 17:56 ` [PATCH v3 6/6] mmc: sdhci-s3c: Add device tree support Thomas Abraham
2012-01-31 20:08   ` Grant Likely
2012-02-01 18:21   ` Karol Lewandowski
2012-03-27 16:15   ` Arnd Bergmann
2012-03-27 16:19   ` Arnd Bergmann
2012-03-30  6:33     ` Viresh Kumar
2012-03-30 11:36       ` Arnd Bergmann
2012-03-30 15:48         ` Stephen Warren
2012-03-30 18:45           ` Arnd Bergmann
     [not found]             ` <201203301845.07534.arnd-r2nGTMty4D4@public.gmane.org>
2012-04-01 11:29               ` Mark Brown [this message]
2012-05-13  4:14           ` [PATCH v2] mmc: dt: Consolidate DT bindings Chris Ball
2012-05-13 19:29             ` Guennadi Liakhovetski
     [not found]             ` <871umou38f.fsf_-_-2X9k7bc8m7Mdnm+yROfE0A@public.gmane.org>
2012-05-13 19:46               ` Arnd Bergmann
2012-05-13 20:10                 ` Chris Ball
2012-05-14 19:53                   ` Arnd Bergmann
2012-04-09 14:48         ` [PATCH v3 6/6] mmc: sdhci-s3c: Add device tree support Chris Ball
2012-04-10 21:37         ` Chris Ball
2012-02-09 13:42 ` [PATCH v3 0/6] mmc: sdhci-s3c: Rework platform data and add " Kukjin Kim
2012-02-11 21:37   ` Chris Ball
2012-02-16 13:04     ` Kukjin Kim
2012-02-16 13:08       ` Chris Ball
2012-02-21 11:37         ` Kukjin Kim
2012-02-21 13:17           ` Chris Ball
2012-02-22 12:58             ` Mark Brown
2012-03-02 20:40               ` Chris Ball
2012-03-03  0:44                 ` Kukjin Kim
2012-03-27 15:50             ` Chris Ball
2012-03-28  9:54               ` Mark Brown
2012-03-29  3:15                 ` Kukjin Kim
2012-04-01  1:12                   ` Chris Ball
2012-04-02 19:08                     ` Kukjin Kim

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