linux-kernel - Re: [PATCH v3] pinctrl: aspeed: Fix ast2500 strap register write logic

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Date:   Wed, 23 Aug 2017 10:23:48 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Andrew Jeffery <andrew@...id.au>
Cc:     Yong Li <sdliyong@...il.com>, Joel Stanley <joel@....id.au>,
        Arnd Bergmann <arnd@...db.de>,
        Rick Altherr <raltherr@...gle.com>,
        Rob Herring <robh@...nel.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] pinctrl: aspeed: Fix ast2500 strap register write logic

On Wed, Aug 23, 2017 at 1:54 AM, Andrew Jeffery <andrew@...id.au> wrote:
> On Tue, 2017-08-22 at 14:52 +0200, Linus Walleij wrote:
>> > On Tue, Aug 15, 2017 at 6:21 PM, Yong Li <sdliyong@...il.com> wrote:
>>
>> > On AST2500, the hardware strap register(SCU70) only accepts write ‘1’,
>> > to clear it to ‘0’, must set bits(write  ‘1’) to SCU7C
>> >
>> > Signed-off-by: Yong Li <sdliyong@...il.com>
>>
>> Patch applied with Andrew's review/test tags.
>
> I realised after I sent the tags on v3 that I'd made a mistake: There's a
> slightly awkward to test bug in the v3 implementation. I followed up on v3 with
> this:
>
>         https://lkml.org/lkml/2017/8/16/905
>
> And Yong sent out a corresponding v4:
>
>         https://patchwork.ozlabs.org/patch/802946/

Ah. I got confused and picked the wrong version.

> I see you've pushed Yong's v3 in pinctrl/devel - can we revert/remove that and
> apply v4?

No I would have to revert the patch.

Can't we simply make a small fixup patch?

Yours,
Linus Walleij