linux-kernel - Re: [PATCH v2] gpiolib: Show correct direction from the beginning

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Message-ID: <CACRpkdbBOHwgy_Xp3UG4bW4vLnVhOAgY+97Rs-ANJjve+cS1hQ@mail.gmail.com>
Date:   Tue, 2 Oct 2018 14:51:07 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     timur@...nel.org
Cc:     Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>,
        jhugo@...eaurora.org, Stephen Boyd <swboyd@...omium.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH v2] gpiolib: Show correct direction from the beginning

On Tue, Oct 2, 2018 at 2:26 PM Timur Tabi <timur@...nel.org> wrote:
> On 10/2/18 2:38 AM, Linus Walleij wrote:
> >> But as today the only driver that seems to be using valid_mask is msm,
> >> so perhaps a hack is something better and then when we have a second
> >> driver that requires it we figure out the real requirements. But it is
> >> definately your decision;)
>
> Please note that MSM is supposed to be the *first* driver, not the only,
> driver that needs valid_mask.  So let's not make any code changes that
> limit this feature to the MSM driver.

I just recently encouraged Thierry to reuse this for the Tegra186
driver:
https://marc.info/?l=linux-gpio&m=153787164826821&w=2

Yours,
Linus Walleij