linux-kernel - Re: [PATCH v5] i2c: imx: make bus recovery through pinctrl optional

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Message-ID: <CADRPPNQQNW+qz6LywsSA9OHnJ+pp-uSKDXjhvMup55qM7uVcJg@mail.gmail.com>
Date:   Mon, 12 Sep 2016 11:47:37 -0500
From:   Leo Li <pku.leo@...il.com>
To:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
Cc:     Stefan Agner <stefan@...er.ch>, Gao Pan <pandy.gao@....com>,
        Wolfram Sang <wsa@...-dreams.de>,
        lkml <linux-kernel@...r.kernel.org>,
        Li Yang <leoyang.li@....com>, linux-gpio@...r.kernel.org,
        "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v5] i2c: imx: make bus recovery through pinctrl optional

On Fri, Sep 9, 2016 at 3:59 PM, Uwe Kleine-König
<u.kleine-koenig@...gutronix.de> wrote:
> Hello,
>
> On Fri, Sep 09, 2016 at 01:34:31PM -0700, Stefan Agner wrote:
>> Yeah it is a bit a wording thing: In my understanding, pinctrl is
>> required on SoC's witch have a pin controller... It is just that the
>> driver does not need to get the pinctrl by itself because the stack is
>> taking care of it implicitly. And yes, that makes the particular example
>> not a real world example.
>
> At first I thought, too, that it's a fatal problem if getting the
> pinctrl stuff fails. IMHO that shows that the comments (or the code) are
> still not good enough.

Ya.  If it has confused more than one people, it is likely to confuse
more.  I agree with you that we should make it more clear.

Thanks,
Leo