linux-kernel - Re: [PATCH 2/3] iio: st_accel: Support sensor i2c probe using acpi

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Message-ID: <1480393651.3233.7.camel@canonical.com>
Date:   Tue, 29 Nov 2016 12:27:31 +0800
From:   Shrirang Bagul <shrirang.bagul@...onical.com>
To:     Jonathan Cameron <jic23@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>
Cc:     "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/3] iio: st_accel: Support sensor i2c probe using acpi

On Sun, 2016-11-27 at 11:14 +0000, Jonathan Cameron wrote:
> On 24/11/16 14:26, Linus Walleij wrote:
> > On Thu, Nov 24, 2016 at 6:33 AM, Shrirang Bagul
> > <shrirang.bagul@...onical.com> wrote:
> > 
> > > Add support to probe st_accel sensors on i2c bus using ACPI. Compatible
> > > strings are not avaialable on ACPI based systems.
> > > 
> > > Signed-off-by: Shrirang Bagul <shrirang.bagul@...onical.com>
> > 
> > (...)
> > 
> > > +#ifdef CONFIG_ACPI
> > > +static const struct acpi_device_id st_accel_acpi_match[] = {
> > > +       {"SMO8A90", LNG2DM},
> > > +       { },
> > > +};
> > 
> > Why is ACPI only supporting one out of 14 devices?
> > 
> > Surely there are some out-of-tree ACPI platforms using one
> > or more of the others?
> > 
> > Apart from that it looks nice.
> 
> Applied to the togreg branch of iio.git and pushed out as testing
> for the autobuilders to play with it.
> 
> Anyone know where the ACPI names come from? Is there some big
> list somewhere to prevent clashes?
> 
> Jonathan
I'll take a look at the HW in our lab and send patches to identify more st_accel
sensors used mostly on Dell laptops.

Shrirang
> > 
> > Yours,
> > Linus Walleij
> > --
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> > 
> 
>