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Date: Mon, 17 Dec 2007 10:09:53 -0800
From: David Brownell <david-b@pacbell.net>
To: khali@linux-fr.org, eric.y.miao@gmail.com
Subject: Re: [PATCH 2.6.24-rc5-mm 3/3] gpiolib: obsolete 
 drivers/i2c/chips/pca9539.c
Cc: linux-kernel@vger.kernel.org, i2c@lm-sensors.org, bgardner@wabtec.com
References: <f17812d70712142016q73abffc2w99174c40f847152c@mail.gmail.com>
 <20071216204214.01fd7a16@hyperion.delvare>
 <f17812d70712162233h759432a9i15b8e12d1a5fb828@mail.gmail.com>
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> Date: Mon, 17 Dec 2007 14:33:27 +0800
> From: "eric miao" <eric.y.miao@gmail.com>
>
> for the following reasons:
>
> 1. there is currently no known users of this driver
>
> 2. the functionality of this driver is well supported with the recent
>    proposed drivers/gpio/pca9539.c, using GPIO_LIB
>
> Signed-off-by: eric miao <eric.miao@marvell.com>
> Acked-by: Ben Gardner <bgardner@wabtec.com>
> ---
>  Documentation/i2c/chips/pca9539 |   47 --------
>  drivers/i2c/chips/Kconfig       |   10 --
>  drivers/i2c/chips/Makefile      |    1 -
>  drivers/i2c/chips/pca9539.c     |  196 ----------------------------------

Jean, do you sign off on this?  In any case I think this should
be going through your I2C patches.

I'd be a trifle uneasy just deleting this, because it's possible
there are *unknown* users ... and also because nobody's yet done
a userspace interface to the gpiolib infrastructure.  (It seems
to be the usual case of nobody wanting such a thing quite enough
to write the code.)

I'd be more comfortable marking it as obsolete and flagging it
for removal a release or two after Eric's new version merges ...
though maybe that's just paranoia.

- Dave
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