Linux GPIO subsystem development
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From: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
To: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>,
	"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
	<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
	"linux-gpio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-gpio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	linux-sunxi <linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
Subject: Re: [PATCH 0/2] pinctrl: sunxi: misc improvements for gpio
Date: Thu, 24 Jul 2014 14:57:50 +0200	[thread overview]
Message-ID: <20140724125750.GY20328@lukather> (raw)
In-Reply-To: <CACRpkdZhZkB6=_ehVXxWAnvkVYy_KOU84fcGRSRTc9-2X2paqQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

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On Tue, Jul 22, 2014 at 06:33:10PM +0200, Linus Walleij wrote:
> > AFAIK pinctrl pin numbers are device specific, so I'm wondering if we
> > should also number them in terms of offsets, rather than absolute pin
> > numbers. It's more of an asthetic change though. Any thoughts?
> 
> Usually I say these pin numbers should try to match what is
> in the data sheet so it is easy to understand and debug. Sometimes
> pins are numbered with letters and stuff so they rather have names
> than numbers, then some artificial numbering is applied, whatever
> is helpful.
> 
> I'm not directly familiar with the sunxi numbering system though...

I'd prefer if we had an absolute number that more or less matches the
one in the datasheet.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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      parent reply	other threads:[~2014-07-24 12:57 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-14 17:24 [PATCH 0/2] pinctrl: sunxi: misc improvements for gpio Chen-Yu Tsai
     [not found] ` <1405358677-23657-1-git-send-email-wens-jdAy2FN1RRM@public.gmane.org>
2014-07-14 17:24   ` [PATCH 1/2] pinctrl: sunxi: use gpiolib API to mark a GPIO used as an IRQ Chen-Yu Tsai
2014-07-24 11:46     ` Maxime Ripard
2014-07-28 10:11     ` Linus Walleij
2014-07-14 17:24   ` [PATCH 2/2] pinctrl: sunxi: number gpio ranges starting from 0 Chen-Yu Tsai
2014-07-24 12:48     ` Maxime Ripard
     [not found]     ` <1405358677-23657-3-git-send-email-wens-jdAy2FN1RRM@public.gmane.org>
2014-07-24 13:19       ` Chen-Yu Tsai
     [not found]         ` <CAGb2v64mZjmB+ftQ7yM5LzhUyPVGtCXq6DOUQ-pumLb73_DYLQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-07-24 16:01           ` Maxime Ripard
2014-07-24 16:17             ` Chen-Yu Tsai
2014-07-28 10:14     ` Linus Walleij
2014-07-22 16:33   ` [PATCH 0/2] pinctrl: sunxi: misc improvements for gpio Linus Walleij
     [not found]     ` <CACRpkdZhZkB6=_ehVXxWAnvkVYy_KOU84fcGRSRTc9-2X2paqQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-07-24 12:57       ` Maxime Ripard [this message]

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