linux-kernel - Re: [PATCH v2 1/3] dt-bindings: pinctrl: Add a reserved-gpio-ranges property

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Message-ID: <CACRpkdbAYPpcoyVkMm=yKABMByJuCyXdYifuFdYhV4g6CU3sEg@mail.gmail.com>
Date:   Tue, 20 Mar 2018 04:36:35 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-arm-msm@...r.kernel.org,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Timur Tabi <timur@...eaurora.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Grant Likely <grant.likely@...retlab.ca>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH v2 1/3] dt-bindings: pinctrl: Add a reserved-gpio-ranges property

Hi Stephen,

thanks for the patch and hope you have a good time at your new
workplace!

On Fri, Jan 26, 2018 at 2:13 AM, Stephen Boyd <sboyd@...eaurora.org> wrote:

> Some qcom platforms make some GPIOs or pins unavailable for use
> by non-secure operating systems, and thus reading or writing the
> registers for those pins will cause access control issues.
> Introduce a DT property to describe the set of GPIOs that are
> available for use so that higher level OSes are able to know what
> pins to avoid reading/writing.
>
> Cc: Grant Likely <grant.likely@...retlab.ca>
> Cc: <devicetree@...r.kernel.org>
> Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>

This looks fine except Andy's note to rename this ranges
to gpio-reserved-ranges for namespacing.

Are you reposting this series as v3 with this fixed or does someone
else need to pick it up?

Yours,
Linus Walleij