linux-kernel - Re: [RFC 2.6.27 1/1] gpiolib: add support for batch set of pins

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Date:	Thu, 1 Jan 2009 02:05:50 +0800
From:	"Jaya Kumar" <jayakumar.lkml@...il.com>
To:	"Robin Getz" <rgetz@...ckfin.uclinux.org>
Cc:	"David Brownell" <david-b@...bell.net>,
	"Eric Miao" <eric.y.miao@...il.com>,
	"Sam Ravnborg" <sam@...nborg.org>,
	"Eric Miao" <eric.miao@...vell.com>,
	"Haavard Skinnemoen" <hskinnemoen@...el.com>,
	"Philipp Zabel" <philipp.zabel@...il.com>,
	"Russell King" <rmk@....linux.org.uk>,
	"Ben Gardner" <bgardner@...tec.com>, "Greg KH" <greg@...ah.com>,
	linux-arm-kernel@...ts.arm.linux.org.uk,
	linux-fbdev-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, linux-embedded@...r.kernel.org
Subject: Re: [RFC 2.6.27 1/1] gpiolib: add support for batch set of pins

On Thu, Jan 1, 2009 at 1:38 AM, Robin Getz <rgetz@...ckfin.uclinux.org> wrote:
> On Tue 30 Dec 2008 23:58, Jaya Kumar pondered:
>> On Tue, Dec 30, 2008 at 11:55 PM, Robin Getz <rgetz@...ckfin.uclinux.org> wrote:
>> > Yeah, I hadn't thought about spanning more than one gpio_chip. That's a good
>> > point.
>>
>> The currently posted code already supports spanning more than one gpio_chip.
>>
>
> But doesn't do all the other things that David suggested/requested.
>

Hi Robin,

Yes, you are right. My implementation does not support a driver that
needs to set/get more than 32-bits of gpio in a single call. I'm okay
with that restriction as I don't see a concrete use case for that. I
understand that you're saying that's not satisfactory. I guess we'll
have to agree to differ.

Thanks,
jaya
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