linux-kernel - Re: [PATCH 0/3] iio: accel: kxcjk-1013: Add support for KX023-1025

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Message-ID: <20210511145051.GC4413@qmqm.qmqm.pl>
Date:   Tue, 11 May 2021 16:50:51 +0200
From:   Michał Mirosław <mirq-linux@...e.qmqm.pl>
To:     Stephan Gerhold <stephan@...hold.net>
Cc:     Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Rob Herring <robh+dt@...nel.org>,
        Robert Yang <decatf@...il.com>, linux-iio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        ~postmarketos/upstreaming@...ts.sr.ht,
        Hans de Goede <hdegoede@...hat.com>
Subject: Re: [PATCH 0/3] iio: accel: kxcjk-1013: Add support for KX023-1025

On Tue, May 11, 2021 at 04:38:06PM +0200, Stephan Gerhold wrote:
> Hi Michał,
> 
> On Tue, May 11, 2021 at 04:28:47PM +0200, Michał Mirosław wrote:
> > On Tue, May 11, 2021 at 11:54:06AM +0200, Stephan Gerhold wrote:
> > > KX023-1025 [1] is another accelerometer from Kionix that has lots
> > > of additional functionality compared to KXCJK-1013. It combines the
> > > motion interrupt functionality from KXCJK with the tap detection
> > > from KXTF9, plus a lot more other functionality.
> > When I researched KXTF9 support it occurred to me that the -10xx part is
> > duplicating the information in 'KXyyy' - it seems to be a project number
> > or something. I would suggest to use just 'kx023' prefix for the code
> > and DT but leave the full identification in the comments/description.
> There do seem to be two different KXTF9 from Kionix, a KXTF9-4100 [1]
> and a KXTF9-2050 [2] with separate datasheets. Have you checked if there
> is a meaningful difference between them?

I haven't compared them thoroughly, but the versions seem to differ only
in power consumption (maybe a different manufacturing process?). The
register sets seem the same.

Best Regards
Michał Mirosław