linux-kernel - Re: [PATCH v7] i2c: imx: make bus recovery through pinctrl optional

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Message-ID: <20160915194526.GC7863@katana>
Date:   Thu, 15 Sep 2016 21:45:27 +0200
From:   Wolfram Sang <wsa@...-dreams.de>
To:     Li Yang <leoyang.li@....com>
Cc:     linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Gao Pan <pandy.gao@....com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
Subject: Re: [PATCH v7] i2c: imx: make bus recovery through pinctrl optional

On Mon, Sep 12, 2016 at 05:22:30PM -0500, Li Yang wrote:
> Since commit 1c4b6c3bcf30 ("i2c: imx: implement bus recovery") the
> driver starts to use gpio/pinctrl to support optional bus recovery
> feature.  But pinctrl is not always usable.  There are platforms such
> as ls1021a and ls1043a that don't support pinctrl, and it could just
> be broken due to old/broken device tree.  The patch makes it really
> optional that the probe function won't bailout on pinctrl problems
> instead it just disables bus recovery and prints out notification when
> there is problem with pinctrl.  Since pinctrl is only used by bus
> recovery in this driver, move pinctrl initialization into bus recovery
> init function to prevent confusion.
> 
> Signed-off-by: Li Yang <leoyang.li@....com>
> Cc: Gao Pan <pandy.gao@....com>
> Cc: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
> Acked-by: Linus Walleij <linus.walleij@...aro.org>

Applied to for-next. Thanks to all reviewers and to Li Yang for keeping
at it!


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