linux-kernel - Re: BMI160 accelerometer on AyaNeo tablet

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Message-ID: <CAHp75VdoNV5MOixvaFLs9xBkrJH+Rc0dVVWmnZA6nyOMVS6k8Q@mail.gmail.com>
Date:   Mon, 18 Oct 2021 18:22:04 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Jonathan Cameron <Jonathan.Cameron@...wei.com>
Cc:     Jonathan Cameron <jic23@...nel.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Maxim Levitsky <maximlevitsky@...il.com>,
        linux-iio <linux-iio@...r.kernel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: BMI160 accelerometer on AyaNeo tablet

On Mon, Oct 18, 2021 at 6:17 PM Jonathan Cameron
<Jonathan.Cameron@...wei.com> wrote:
> On Mon, 18 Oct 2021 10:40:33 +0300
> Andy Shevchenko <andy.shevchenko@...il.com> wrote:
> > On Mon, Oct 18, 2021 at 6:41 AM Jonathan Cameron <jic23@...nel.org> wrote:
> > > On Sat, 16 Oct 2021 19:27:50 +0300
> > > Maxim Levitsky <maximlevitsky@...il.com> wrote:

...

> > I hardly believe that Realtek has issued a special ID from the range

Slight correction: ID --> PCI ID

> > where mostly PCIe ports or so are allocated, although it's possible.
> > We need proof.
> >
> > What I believe is the case here is that OEMs are just quite diletants
> > in ACPI and firmware and they messed up with BIOS somehow that it
> > issued the ID for the device.
> > There are also two other possibilities: OEM stole the ID (deliberately
> > or accidentally), or the device is not just gyro, but something which
> > contains gyro.
> >
> > As to the last paragraph, see above, we must see DSDT. Without it I
> > have a strong NAK.
> >
> > P.S. Jonathan, please do not be so fast next time with ACPI IDs.
>
> No problem.  Will pull this one once I'm back on correct PC.

Thank you!

-- 
With Best Regards,
Andy Shevchenko