linux-kernel - Re: [RFC v2 7/7] iio: inv_mpu6050: Expose channels from slave sensors

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Message-ID: <20160518234937.GA19288@rob-hp-laptop>
Date:	Wed, 18 May 2016 18:49:37 -0500
From:	Rob Herring <robh@...nel.org>
To:	Crestez Dan Leonard <leonard.crestez@...el.com>
Cc:	Jonathan Cameron <jic23@...nel.org>, linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org, Hartmut Knaack <knaack.h@....de>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Peter Meerwald-Stadler <pmeerw@...erw.net>,
	Daniel Baluta <daniel.baluta@...el.com>,
	Ge Gao <ggao@...ensense.com>, Peter Rosin <peda@...ntia.se>,
	linux-i2c@...r.kernel.org, Wolfram Sang <wsa@...-dreams.de>,
	devicetree@...r.kernel.org, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>
Subject: Re: [RFC v2 7/7] iio: inv_mpu6050: Expose channels from slave sensors

On Wed, May 18, 2016 at 06:00:54PM +0300, Crestez Dan Leonard wrote:
> This works by copying the iio_chan_specs from the slave device and
> republishing them as if they belonged to the MPU itself. All
> read/write_raw operations are forwarded to the other driver.
> 
> The original device is still registered with linux as a normal driver
> and works normally and you can poke at it to configure stuff like sample
> rates and scaling factors.
> 
> Buffer values are read from the MPU fifo, allowing a much higher
> sampling rate.
> 
> Signed-off-by: Crestez Dan Leonard <leonard.crestez@...el.com>
> ---
>  .../devicetree/bindings/iio/imu/inv_mpu6050.txt    |  47 ++-

Please put all the binding changes in 1 separate patch. The h/w is not 
evolving...

Then I would have had the full picture when replying the to first 
change.

Rob