linux-kernel - Re: [PATCH v2 1/5] misc: sensorhub: Add sensorhub driver

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Date:	Fri, 21 Nov 2014 20:38:25 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Karol Wrona <k.wrona@...sung.com>
Cc:	Jonathan Cameron <jic23@...nel.org>, linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>
Subject: Re: [PATCH v2 1/5] misc: sensorhub: Add sensorhub driver

On Friday 21 November 2014 19:19:13 Karol Wrona wrote:
> Sensorhub  is MCU dedicated to collect data and manage several sensors.
> Sensorhub is a spi device which provides a layer for IIO devices. It provides
> some data parsing and common mechanism for sensorhub sensors.
> 
> Adds common sensorhub library for sensorhub driver and iio drivers
> which uses sensorhub MCU to communicate with sensors.
> 
> Signed-off-by: Karol Wrona <k.wrona@...sung.com>
> Acked-by: Kyungmin Park <kyungmin.park@...sung.com>
> ---
>  drivers/misc/Kconfig                   |    1 +
>  drivers/misc/Makefile                  |    1 +
>  drivers/misc/sensorhub/Kconfig         |   13 +
>  drivers/misc/sensorhub/Makefile        |    6 +
>  drivers/misc/sensorhub/ssp.h           |  279 +++++++++++
>  drivers/misc/sensorhub/ssp_dev.c       |  828 ++++++++++++++++++++++++++++++++
>  drivers/misc/sensorhub/ssp_spi.c       |  653 +++++++++++++++++++++++++
>  include/linux/iio/common/ssp_sensors.h |   79 +++

You seem to provide infrastructure for other drivers here, so I don't think
drivers/misc is a good place. Have you considered making this a regular
mfd driver? If that doesn't fit, is there possibly some place in the iio
framework for this kind of driver?

	Arnd
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