linux-kernel - Re: [PATCH v2 3/3] i2c: smbus: Use device_*() functions instead of of

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Message-ID: <CAHp75Vd=gxF9jFMvRw3qM9rfsxxCsO8qYXKVheuhjOV7ypU9og@mail.gmail.com>
Date:   Wed, 12 Jan 2022 17:41:08 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Akhil R <akhilrajeev@...dia.com>
Cc:     Christian Koenig <christian.koenig@....com>,
        Dmitry Osipenko <digetx@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jon Hunter <jonathanh@...dia.com>,
        Laxman Dewangan <ldewangan@...dia.com>,
        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>, Len Brown <lenb@...nel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH v2 3/3] i2c: smbus: Use device_*() functions instead of of_*()

On Wed, Jan 12, 2022 at 4:15 PM Akhil R <akhilrajeev@...dia.com> wrote:
>
> Change of_*() functions to device_*() for firmware agnostic usage.
> This allows to have smbus_alert interrupt without any changes

the smbus_alert

> in the controller drivers using ACPI table.

the ACPI

...

This change reveals potential issue:

> -               irq = of_irq_get_byname(adapter->dev.of_node, "smbus_alert");
> +               irq = device_irq_get_byname(adapter->dev.parent, "smbus_alert");

>                 if (irq <= 0)

I guess this '= 0' part should be fixed first.

>                         return irq;

-- 
With Best Regards,
Andy Shevchenko