linux-kernel - Re: [PATCH] pinctrl: imx: do not implicitly set pin regs to -1

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Message-ID: <20150302155315.GD7865@pengutronix.de>
Date:	Mon, 2 Mar 2015 16:53:15 +0100
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Stefan Agner <stefan@...er.ch>
Cc:	Shawn Guo <shawn.guo@...aro.org>, linus.walleij@...aro.org,
	linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
	kernel@...gutronix.de, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] pinctrl: imx: do not implicitly set pin regs to -1

Hello,

On Mon, Mar 02, 2015 at 02:42:01PM +0100, Stefan Agner wrote:
> On 2015-03-02 13:59, Uwe Kleine-König wrote:
> > On Mon, Mar 02, 2015 at 07:45:17PM +0800, Shawn Guo wrote:
> >> On Fri, Feb 06, 2015 at 05:30:56PM +0100, Stefan Agner wrote:
> >> > Commit 3dac1918a491 ("pinctrl: imx: detect uninitialized pins") needs
> >> > the values in struct imx_pin_reg to be -1. This has been done in a
> >> > rather unorthodox way by setting the memory to 0xff using memset...
> >> > Use a proper for loop to initialize the whole array with -1.
> >> >
> >> > Signed-off-by: Stefan Agner <stefan@...er.ch>
> >>
> >> Acked-by: Shawn Guo <shawn.guo@...aro.org>
> > too late. This patch is part of 4.0-rc1 (4ff0f034e95d).
> 
> This is not the same patch. The patch you are mentioning is actually
> fixing a bug introduce in the change where we set -1 for uninitialized
> pins. This patch is solving the weird assignment of the initial value...
ah right.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
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