linux-kernel - Re: [PATCH v3 1/3] device property: Add device_irq_get

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Message-ID: <CAHp75VcA5LbukVXxtGu6LeTJSxg2V2NgN-BGt3Ljrw0LO5u-kw@mail.gmail.com>
Date:   Fri, 21 Jan 2022 12:16:37 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Akhil R <akhilrajeev@...dia.com>
Cc:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Christian Koenig <christian.koenig@....com>,
        Dmitry Osipenko <digetx@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Laxman Dewangan <ldewangan@...dia.com>,
        Len Brown <lenb@...nel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        linux-i2c <linux-i2c@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-tegra <linux-tegra@...r.kernel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Wolfram Sang <wsa@...nel.org>
Subject: Re: [PATCH v3 1/3] device property: Add device_irq_get_byname

On Fri, Jan 21, 2022 at 11:18 AM Akhil R <akhilrajeev@...dia.com> wrote:

...

> > > +int device_irq_get_byname(struct device *dev, const char *name);
> >
> > Since we don't have device_irq_get() perhaps we don't need this one right now
> > (just open code it in the caller). This will satisfy Rafael's request.
>
> If to code the same in caller, I guess, it would look like this -
>          irq = fwnode_irq_get_byname(dev_fwnode(adapter->dev.parent),
>                                          "smbus_alert");

Yep, I meant how you point to it in the documentation, e.g.

  The user may call fwnode_irq_get_byname() with the firmware node and
name of the IRQ it wants to retrieve.


> Looks okay to me, but if given an option I would go with device_irq_get_byname().

You see, there was a query from Rafael and I haven't seen an answer
yet. On top there is no such function for fwnode_irq_get() (I mean
device_irq_get() API). It would be harder to push without good
justification why one has the device_ counterpart and the other does
not. Easiest way, as I see it, is to drop it for now.

-- 
With Best Regards,
Andy Shevchenko