From: Thierry Reding <thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
To: Rob Herring <robherring2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
Wolfram Sang <w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
Linus Walleij
<linus.walleij-0IS4wlFg1OjSUeElwK9/Pw@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v2] gpio: Add Avionic Design N-bit GPIO expander support
Date: Thu, 2 Aug 2012 08:18:37 +0200 [thread overview]
Message-ID: <20120802061837.GF12241@avionic-0098.adnet.avionic-design.de> (raw)
In-Reply-To: <50185619.5090706-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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On Tue, Jul 31, 2012 at 05:03:05PM -0500, Rob Herring wrote:
> For nr-gpios, I think it is typically not needed. Generally, you will
> know how many gpio lines the h/w has based on the compatible string. If
> this part really is the same part but different packages with different
> numbers of gpio, then this property makes sense.
That's exactly what I need it for. The controller is synthesized in a
CPLD, so technically the part is always the same, but the configured
logic can implement any number of GPIOs.
Thierry
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next prev parent reply other threads:[~2012-08-02 6:18 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-23 11:59 [PATCH v2] gpio: Add Avionic Design N-bit GPIO expander support Thierry Reding
[not found] ` <1343044770-6591-1-git-send-email-thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
2012-07-29 17:13 ` Linus Walleij
2012-07-29 20:27 ` Arnd Bergmann
[not found] ` <CACRpkdaZcUvcJMUZTqCEU5FQYhE3EvSSfUEnEx0dYRt-6x5Nig-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-30 7:47 ` Thierry Reding
[not found] ` <20120730074714.GC15245-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-07-31 22:03 ` Rob Herring
2012-07-31 23:22 ` Stephen Warren
[not found] ` <50185619.5090706-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-08-02 6:18 ` Thierry Reding [this message]
2012-08-05 10:50 ` Linus Walleij
[not found] ` <CACRpkdbrdWw_HR91r72aB_S2+vxiaSBKHwW+Tsmi8pKk9VsgFg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-08-06 5:11 ` Thierry Reding
[not found] ` <20120806051144.GA12642-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-08-06 6:39 ` Linus Walleij
2012-08-09 6:27 ` Thierry Reding
2012-08-09 20:20 ` Thierry Reding
[not found] ` <20120809202054.GA24503-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-08-10 8:19 ` Linus Walleij
2012-08-10 8:35 ` Thierry Reding
[not found] ` <20120810083508.GA16251-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-08-10 8:41 ` Linus Walleij
2012-08-10 8:48 ` Thierry Reding
2012-08-10 9:15 ` Russell King - ARM Linux
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