Re: [PATCH v4 0/6] iio: Add output buffer support and DAC example

From: Jonathan Cameron <jic23@kernel.org>
To: Alexandru Ardelean <ardeleanalex@gmail.com>
Cc: "Mihail Chindris" <mihail.chindris@analog.com>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-iio <linux-iio@vger.kernel.org>,
	"Lars-Peter Clausen" <lars@metafoo.de>,
	"Hennerich, Michael" <Michael.Hennerich@analog.com>,
	"Nuno Sá" <nuno.sa@analog.com>,
	"Bogdan, Dragos" <dragos.bogdan@analog.com>,
	"Alexandru Ardelean" <alexandru.ardelean@analog.com>
Subject: Re: [PATCH v4 0/6] iio: Add output buffer support and DAC example
Date: Mon, 30 Aug 2021 16:17:30 +0100	[thread overview]
Message-ID: <20210830161730.554e2663@jic23-huawei> (raw)
In-Reply-To: <CA+U=DsqfxUVJ6e_09wWBqP2XMgYrsq0ggOmgFWKzrru45oWZYQ@mail.gmail.com>

On Wed, 25 Aug 2021 10:35:53 +0300
Alexandru Ardelean <ardeleanalex@gmail.com> wrote:

> On Fri, Aug 20, 2021 at 8:01 PM Mihail Chindris
> <mihail.chindris@analog.com> wrote:
> >  
> 
> My only note about this series [as a whole] is that I would have
> chosen an existing DAC to which to add kfifo output support.
> To make things smooth for this new mechanism.
> 
> A new driver usually takes more effort to review/introduce than a
> change to an existing one.

Agreed.  If it makes sense to send the driver without this support
first then add it in a follow up that is fine too.  That way we can
separate basic driver review from the exciting new stuff.

Jonathan

> 
> > Changelog v3 -> v4:
> >   * https://lore.kernel.org/linux-iio/20210219124012.92897-1-alexandru.ardelean@analog.com
> >   * Remove DMA related commits
> >   * Test and add fixies to the previous version
> >     - Add write function to iio_buffer_fileops in industrialiio-core
> >     - In iio_kfifo_remove_from change number of samples to 1 instead of
> >       r->bytes_per_datum otherwise n square samples are removed.
> >     - In iio_buffer_remove_sample replace move buffer->access->write
> >       check to first if an replace with remove_from. Checkpatch was
> >       complaining about returning -ENOSYS
> >   * Add ad3552r example
> >
> > Alexandru Ardelean (1):
> >   iio: triggered-buffer: extend support to configure output buffers
> >
> > Lars-Peter Clausen (2):
> >   iio: Add output buffer support
> >   iio: kfifo-buffer: Add output buffer support
> >
> > Mihail Chindris (3):
> >   Documentation:ABI:testing:add doc for AD3552R ABI
> >   dt-bindings: iio: dac: Add adi,ad3552r.yaml
> >   drivers:iio:dac: Add AD3552R driver support
> >
> >  .../ABI/testing/sysfs-bus-iio-dac-ad3552r     |   10 +
> >  .../bindings/iio/dac/adi,ad3552r.yaml         |  185 +++
> >  drivers/iio/accel/adxl372.c                   |    1 +
> >  drivers/iio/accel/bmc150-accel-core.c         |    1 +
> >  drivers/iio/adc/at91-sama5d2_adc.c            |    4 +-
> >  .../buffer/industrialio-triggered-buffer.c    |    8 +-
> >  drivers/iio/buffer/kfifo_buf.c                |   50 +
> >  .../cros_ec_sensors/cros_ec_sensors_core.c    |    5 +-
> >  .../common/hid-sensors/hid-sensor-trigger.c   |    5 +-
> >  drivers/iio/dac/Kconfig                       |   10 +
> >  drivers/iio/dac/Makefile                      |    1 +
> >  drivers/iio/dac/ad3552r.c                     | 1419 +++++++++++++++++
> >  drivers/iio/iio_core.h                        |    4 +
> >  drivers/iio/industrialio-buffer.c             |  133 +-
> >  drivers/iio/industrialio-core.c               |    1 +
> >  include/linux/iio/buffer.h                    |    7 +
> >  include/linux/iio/buffer_impl.h               |   11 +
> >  include/linux/iio/triggered_buffer.h          |   11 +-
> >  18 files changed, 1854 insertions(+), 12 deletions(-)
> >  create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-dac-ad3552r
> >  create mode 100644 Documentation/devicetree/bindings/iio/dac/adi,ad3552r.yaml
> >  create mode 100644 drivers/iio/dac/ad3552r.c
> >
> >
> > base-commit: 94a853eca720ac9e385e59f27e859b4a01123f58
> > --
> > 2.27.0
> >  