From: Kai-Heng Feng <kai.heng.feng@canonical.com>
To: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Jonathan Cameron <jic23@kernel.org>,
Lars-Peter Clausen <lars@metafoo.de>,
Chris Lesiak <chris.lesiak@licor.com>,
Matt Ranostay <matt.ranostay@konsulko.com>,
linux-iio <linux-iio@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] iio: humidity: hdc100x: Add ACPI HID table
Date: Fri, 7 Jan 2022 12:14:03 +0800 [thread overview]
Message-ID: <CAAd53p4nUDtuVmkFCqv2R1KEvGYQyLu+ibxJOsoUZs-SM6LuHw@mail.gmail.com> (raw)
In-Reply-To: <CAHp75VdxV+4_yxJv1H1MZPpu02e2gHUkP55dduUqN7QJ2j6aGg@mail.gmail.com>
On Thu, Jan 6, 2022 at 10:33 PM Andy Shevchenko
<andy.shevchenko@gmail.com> wrote:
>
> On Thu, Jan 6, 2022 at 6:13 AM Kai-Heng Feng
> <kai.heng.feng@canonical.com> wrote:
> >
> > x86 boards may use ACPI HID "TXN1010" to for hdc100x device.
>
> to for --> for the
Will correct it.
>
> > So add an ACPI match table for that accordingly.
>
> ...
>
> > - Change the ID to follow ACPI Spec
>
> Is there any evidence Texas Instrument allocated this ID, or you just
> created it yourself?
> Please, add an excerpt from email from them to confirm this.
Sure, let me ask our customer to provide the excerpt.
>
> ...
>
> > +static const struct acpi_device_id __maybe_unused hdc100x_acpi_match[] = {
> > + { "TXN1010" },
>
> > + { },
>
> No comma is needed.
Got it.
>
> > +};
>
> > +
>
> No blank line is needed.
Will update.
>
> > +MODULE_DEVICE_TABLE(acpi, hdc100x_acpi_match);
>
> ...
>
> > + .acpi_match_table = ACPI_PTR(hdc100x_acpi_match),
>
> It's the wrong usage of ACPI_PTR().
Can you please explain a bit more?
ACPI_PTR() turns the value to NULL when ACPI is not enabled, seems to
be correct?
Not to mention most other drivers also use ACPI_PTR() for acpi_match_table.
>
> > },
>
> All the comments are applicable to all your patches. Some of them I
> already commented on and even kbuild bot has sent you a complaint.
That one should be solved by adding __maybe_unused to acpi_device_id array.
Kai-Heng
>
> --
> With Best Regards,
> Andy Shevchenko
next prev parent reply other threads:[~2022-01-07 4:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-06 4:12 [PATCH v2] iio: humidity: hdc100x: Add ACPI HID table Kai-Heng Feng
2022-01-06 14:32 ` Andy Shevchenko
2022-01-07 4:14 ` Kai-Heng Feng [this message]
2022-01-07 10:35 ` Andy Shevchenko
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