linux-kernel - Re: [PATCH v4 02/15] gpio: regmap: set gpio_chip of

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAHp75VcQ4H_+A_JrVH+trBzDFctUGoNr7KfgQ-Og_eH3YzxVFg@mail.gmail.com>
Date:   Fri, 5 Mar 2021 11:44:47 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Michael Walle <michael@...le.cc>
Cc:     Álvaro Fernández Rojas <noltari@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        bcm-kernel-feedback-list <bcm-kernel-feedback-list@...adcom.com>,
        Jonas Gorski <jonas.gorski@...il.com>,
        Necip Fazil Yildiran <fazilyildiran@...il.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4 02/15] gpio: regmap: set gpio_chip of_node

On Thu, Mar 4, 2021 at 7:24 PM Michael Walle <michael@...le.cc> wrote:
> Am 2021-03-04 17:46, schrieb Andy Shevchenko:
> > On Thu, Mar 4, 2021 at 6:33 PM Andy Shevchenko
> > <andy.shevchenko@...il.com> wrote:
> >> On Thu, Mar 4, 2021 at 5:44 PM Álvaro Fernández Rojas
> >> <noltari@...il.com> wrote:
> >
> > Let me summarize what we can do this independently on any of my
> > patches and be okay with.
> >
> > In the regmap GPIO configuration you supply struct fwnode_handle
> > *fwnode.
> > You can you fwnode API in the actual GPIO controller driver.
> > Inside gpio-regmap simply do this for now
> >
> > gc->of_node = to_of_node(config->fwnode);
>
> If doing so, can we please have a comment saying that config->fwnode
> might be NULL in which case the fwnode of the parent is used?

Good comments are always welcome!

> > The last part is an amendment I have told about, but it can be done
> > later on by switching the entire GPIO chip to use fwnode instead of
> > of_node.


-- 
With Best Regards,
Andy Shevchenko