linux-kernel - Re: [PATCHv3] pinctrl: add a pin

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Date:	Fri, 11 Nov 2011 16:48:42 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Chanho Park <chanho61.park@...sung.com>
Cc:	swarren@...dia.com, Baohua.Song@....com,
	linux-kernel@...r.kernel.org,
	Kyungmin Park <kyungmin.park@...sung.com>
Subject: Re: [PATCHv3] pinctrl: add a pin_base for sparse gpio-ranges

On Fri, Nov 11, 2011 at 10:47 AM, Chanho Park <chanho61.park@...sung.com> wrote:

> This patch enables mapping a base offset of gpio ranges with
> a pin offset even if does'nt matched. A base of pinctrl_gpio_range
> means a base offset of gpio. However, we cannot convert gpio to pin
> number for sparse gpio ranges just only using a gpio base offset.
> We can convert a gpio to real pin number(even if not matched) using
> a new pin_base which means a base pin offset of requested gpio range.
> Now, the pin control subsystem passes the pin base offset to the
> pinmux driver.

Thanks, patch applied, however review my discussion with Stephen
about the usefulness of the GPIO-specific instructions altogether...

Yours,
Linus Walleij
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