linux-kernel - Re: [PATCH 10/13] iio: buffer: dmaengine: export devm_iio_dmaengine_buffer

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Message-ID: <CAMknhBHOEQ7vs9S=SFPxDPsKFWdoWe4EtxU_8+M=h7gDH83Afw@mail.gmail.com>
Date: Fri, 12 Jan 2024 08:55:13 -0600
From: David Lechner <dlechner@...libre.com>
To: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Cc: Mark Brown <broonie@...nel.org>, Jonathan Cameron <jic23@...nel.org>, 
	Rob Herring <robh+dt@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	Michael Hennerich <michael.hennerich@...log.com>, Nuno Sá <nuno.sa@...log.com>, 
	Frank Rowand <frowand.list@...il.com>, Thierry Reding <thierry.reding@...il.com>, 
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>, 
	Jonathan Corbet <corbet@....net>, linux-spi@...r.kernel.org, linux-iio@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-doc@...r.kernel.org, 
	linux-pwm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 10/13] iio: buffer: dmaengine: export devm_iio_dmaengine_buffer_alloc()

On Fri, Jan 12, 2024 at 6:38 AM Jonathan Cameron
<Jonathan.Cameron@...wei.com> wrote:
>
> On Wed, 10 Jan 2024 13:49:51 -0600
> David Lechner <dlechner@...libre.com> wrote:
>
> > This changes devm_iio_dmaengine_buffer_alloc() to an exported symbol.
> > This will be used by drivers that need to allocate a DMA buffer without
> > attaching it to an IIO device.
> >
> > Signed-off-by: David Lechner <dlechner@...libre.com>
> > ---
> >  Documentation/driver-api/driver-model/devres.rst   |  1 +
> >  drivers/iio/buffer/Kconfig                         | 14 +++++++-------
> >  drivers/iio/buffer/industrialio-buffer-dmaengine.c |  3 ++-
> >  include/linux/iio/buffer-dmaengine.h               |  2 ++
> >  4 files changed, 12 insertions(+), 8 deletions(-)
> >
> > diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst
> > index b23d4a2b68a6..60e4b7ba38e5 100644
> > --- a/Documentation/driver-api/driver-model/devres.rst
> > +++ b/Documentation/driver-api/driver-model/devres.rst
> > @@ -285,6 +285,7 @@ I2C
> >  IIO
> >    devm_iio_device_alloc()
> >    devm_iio_device_register()
> > +  devm_iio_dmaengine_buffer_alloc()
> >    devm_iio_dmaengine_buffer_setup()
> >    devm_iio_kfifo_buffer_setup()
> >    devm_iio_kfifo_buffer_setup_ext()
> > diff --git a/drivers/iio/buffer/Kconfig b/drivers/iio/buffer/Kconfig
> > index 925c5bf074bc..27d82fb4bc4d 100644
> > --- a/drivers/iio/buffer/Kconfig
> > +++ b/drivers/iio/buffer/Kconfig
> > @@ -40,6 +40,13 @@ config IIO_BUFFER_HW_CONSUMER
> >         Should be selected by drivers that want to use the generic Hw consumer
> >         interface.
> >
> > +config IIO_HW_TRIGGERED_BUFFER
> > +     tristate "Industrial I/O hardware triggered buffer support"
> > +     select AUXILIARY_BUS
> > +     select IIO_TRIGGER
> > +     help
> > +       Provides helper functions for setting up hardware triggered buffers.
> > +
> >  config IIO_KFIFO_BUF
> >       tristate "Industrial I/O buffering based on kfifo"
> >       help
> > @@ -53,10 +60,3 @@ config IIO_TRIGGERED_BUFFER
> >       select IIO_KFIFO_BUF
> >       help
> >         Provides helper functions for setting up triggered buffers.
> > -
> > -config IIO_HW_TRIGGERED_BUFFER
> > -     tristate "Industrial I/O hardware triggered buffer support"
> > -     select AUXILIARY_BUS
> > -     select IIO_TRIGGER
> > -     help
> > -       Provides helper functions for setting up hardware triggered buffers.
>
> Why move this?
>

Oops, this shouldn't be here. Looks like an artifact from a botched
rebase. The intention was to put it in alphabetical order.