linux-kernel - Re: [PATCH v2] pinctrl: mvebu: complain about missing group after checking variant

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Message-ID: <CACRpkdYWzyeJNFJ8DzmsZ1rZ8w=ptkm4wGE4MgdGS=EcBzg1Rw@mail.gmail.com>
Date:	Wed, 9 Dec 2015 16:15:52 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc:	Simon Guinot <simon.guinot@...uanux.org>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Jason Cooper <jason@...edaemon.net>,
	Andrew Lunn <andrew@...n.ch>,
	Gregory Clement <gregory.clement@...e-electrons.com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] pinctrl: mvebu: complain about missing group after
 checking variant

On Sat, Nov 28, 2015 at 11:26 AM, Sebastian Hesselbarth
<sebastian.hesselbarth@...il.com> wrote:

> Common MVEBU pinctrl driver core gets an array of controls to modify
> a specific set of registers and an array of modes for each pingroup
> from each of the different SoC families of MVEBU.
>
> Some SoC families comprise different variants that differ in available
> pingroups and also controls, but to ease driver development, we can
> pass a variant mask to disable specific pingroups for some variants.
> However, controls are limited to the true number of pinctrl groups
> avaiable on a variant.
>
> Now, when pinctrl core driver parses over above arrays, it tries to
> match modes with available controls and complains about missing
> controls for modes that are passed to the core but actually are not
> avaiable on a variant with:
>
> kirkwood-pinctrl f1010000.pin-controller: unknown pinctrl group 36
>
> This warning is a false-positive and annoying, so move the warning
> after we checked the variant mask for each mode setting. Also, if
> there is no supported setting for this variant, do not complain at
> all.
>
> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
> Reported-by: Linus Walleij <linus.walleij@...aro.org>
> ---
> Changelog:
> v1->v2:
> - modify settings loop to allow to check for !num_settings

Patch applied!

Yours,
Linus Walleij
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