linux-kernel - Re: [PATCH 1/4] iio: add filter subfolder

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Message-ID: <20211112174406.7915970e@jic23-huawei>
Date:   Fri, 12 Nov 2021 17:44:06 +0000
From:   Jonathan Cameron <jic23@...nel.org>
To:     Antoniu Miclaus <antoniu.miclaus@...log.com>
Cc:     <robh+dt@...nel.org>, <linux-iio@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/4] iio: add filter subfolder

On Fri, 12 Nov 2021 17:36:21 +0000
Jonathan Cameron <jic23@...nel.org> wrote:

> On Tue, 9 Nov 2021 14:31:24 +0200
> Antoniu Miclaus <antoniu.miclaus@...log.com> wrote:
> 
> > Add filter subfolder for IIO devices that handle filter functionality.
> > 
> > Signed-off-by: Antoniu Miclaus <antoniu.miclaus@...log.com>  
> 
> Hi Antoniu,
> 
> Are we likely to see many filter drivers?  If not we could classify them
> as analog front ends and put them in the AFE directory?

On actually reading what device was I'm fine with filters directory.
AFE is more appropriate if we are talking about a front end for something
we are going to feed to an ADC rather that filtering a microwave frequency signal.

Jonathan

> 
> If there are going to be lots then I'm fine with a new directory.
> 
> Jonathan
> 
> > ---
> >  drivers/iio/Kconfig         | 1 +
> >  drivers/iio/Makefile        | 1 +
> >  drivers/iio/filter/Kconfig  | 8 ++++++++
> >  drivers/iio/filter/Makefile | 6 ++++++
> >  4 files changed, 16 insertions(+)
> >  create mode 100644 drivers/iio/filter/Kconfig
> >  create mode 100644 drivers/iio/filter/Makefile
> > 
> > diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig
> > index 2334ad249b46..3a496a28bad4 100644
> > --- a/drivers/iio/Kconfig
> > +++ b/drivers/iio/Kconfig
> > @@ -77,6 +77,7 @@ source "drivers/iio/chemical/Kconfig"
> >  source "drivers/iio/common/Kconfig"
> >  source "drivers/iio/dac/Kconfig"
> >  source "drivers/iio/dummy/Kconfig"
> > +source "drivers/iio/filter/Kconfig"
> >  source "drivers/iio/frequency/Kconfig"
> >  source "drivers/iio/gyro/Kconfig"
> >  source "drivers/iio/health/Kconfig"
> > diff --git a/drivers/iio/Makefile b/drivers/iio/Makefile
> > index 65e39bd4f934..97d2fbcf0950 100644
> > --- a/drivers/iio/Makefile
> > +++ b/drivers/iio/Makefile
> > @@ -24,6 +24,7 @@ obj-y += common/
> >  obj-y += dac/
> >  obj-y += dummy/
> >  obj-y += gyro/
> > +obj-y += filter/
> >  obj-y += frequency/
> >  obj-y += health/
> >  obj-y += humidity/
> > diff --git a/drivers/iio/filter/Kconfig b/drivers/iio/filter/Kconfig
> > new file mode 100644
> > index 000000000000..e268bba43852
> > --- /dev/null
> > +++ b/drivers/iio/filter/Kconfig
> > @@ -0,0 +1,8 @@
> > +#
> > +# Filter drivers
> > +#
> > +# When adding new entries keep the list in alphabetical order
> > +
> > +menu "Filters"
> > +
> > +endmenu
> > diff --git a/drivers/iio/filter/Makefile b/drivers/iio/filter/Makefile
> > new file mode 100644
> > index 000000000000..cc0892c01142
> > --- /dev/null
> > +++ b/drivers/iio/filter/Makefile
> > @@ -0,0 +1,6 @@
> > +# SPDX-License-Identifier: GPL-2.0
> > +#
> > +# Makefile for industrial I/O Filter drivers
> > +#
> > +
> > +# When adding new entries keep the list in alphabetical order  
>