linux-kernel - Re: [PATCHv2 1/2] gpio: mvebu: fix blink counter register selection

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Date:   Sun, 11 Jun 2017 23:48:34 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Ralph Sennhauser <ralph.sennhauser@...il.com>,
        Gregory Clement <gregory.clement@...e-electrons.com>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Cc:     Richard Genoud <richard.genoud@...il.com>,
        Alexandre Courbot <gnurou@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Jason Cooper <jason@...edaemon.net>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-pwm@...r.kernel.org" <linux-pwm@...r.kernel.org>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Thierry Reding <thierry.reding@...il.com>
Subject: Re: [PATCHv2 1/2] gpio: mvebu: fix blink counter register selection

On Fri, Jun 9, 2017 at 10:03 AM, Ralph Sennhauser
<ralph.sennhauser@...il.com> wrote:
> On Fri, 9 Jun 2017 09:37:55 +0200
> Linus Walleij <linus.walleij@...aro.org> wrote:
>
>> On Thu, Jun 1, 2017 at 2:18 PM, Richard Genoud
>> <richard.genoud@...il.com> wrote:
>>
>> > The blink counter A was always selected because 0 was forced in the
>> > blink select counter register.
>> > The variable 'set' was obviously there to be used as the register
>> > value, selecting the B counter when id==1 and A counter when id==0.
>> >
>> > Tested on clearfog-pro (Marvell 88F6828)
>> >
>> > Fixes: 757642f9a584 ("gpio: mvebu: Add limited PWM support")
>> > Reviewed-by: Gregory CLEMENT <gregory.clement@...e-electrons.com>
>> > Reviewed-by: Ralph Sennhauser <ralph.sennhauser@...il.com>
>> > Signed-off-by: Richard Genoud <richard.genoud@...il.com>
>>
>> Patch applied for fixes.
>>
>> It appears this will clash with patches on the development branch :(
>
> Hi Linus,
>
> The commit 2233bf7a92e7 ("gpio: mvebu: switch to regmap for register
> access") which you likely mean breaks gpio-keys, reported about an hour
> ago, so you might just want to drop that one for now instead as it
> needs mor work anyway.

I would like to get an indication from Thomas and/or Gregory if they think
it is a good idea to revert or if they just wanna fix it.

We still have development time before we even start merging for v4.13
and then we have all the release candidates. No point to throw up hands
this early?

Yours,
Linus Walleij