Re: [PATCH v5] iio: proximity: Add driver support for ST's VL53L0X ToF ranging sensor.

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On Sat, Sep 15, 2018 at 05:57:52PM +0800, Song Qiang wrote:
> This driver was originally written by ST in 2016 as a misc input device
> driver, and hasn't been maintained for a long time. I grabbed some code
> from it's API and reformed it into an iio proximity device driver.
> This version of driver uses i2c bus to talk to the sensor and
> polling for measuring completes, so no irq line is needed.
> This version of driver supports only one-shot mode, and it can be
> tested with reading from
> /sys/bus/iio/devices/iio:deviceX/in_distance_raw
> 
> Signed-off-by: Song Qiang <songqiang.1304521@xxxxxxxxx>

checkpatch.pl complains that the author and signoff emails don't match. 
I think gmail ignores '.' in email names, but better to be consistent 
IMO.

> ---
> Changes in v5:
> 	- Correct some spell problems.
> 	- Change tries-- to --tries to fix the count error.
> 	- Add MODULE_DEVICE_TABLE().
> 	- Add some comments.
> 
> Changes in v4:
> 	- Add datasheet link, default i2c address and TODO list.
> 	- Make capitalization of defines consistent.
> 	- Replace i2c_transfer() with i2c_smbus_read_i2c_block_data().
> 	- Remove IIO_CHAN_SOFT_TIMESTAMP() since no buffer/trigger
> 	  support.
> 	- Add information to MAINTAINERS.
> 
> Changes in v3:
> 	- Recover ST's copyright.
> 	- Clean up indio_dev member in vl53l0x_data struct since it's
> 	  useless now.
> 	- Replace __le16_to_cpu() with le16_to_cpu().
> 	- Remove the iio_device_{claim|release}_direct_mode() since it's
> 	  only needed when we use buffered mode.
> 	- Clean up some coding style problems.
> 
> Changes in v2:
> 	- Clean up the register table.
> 	- Sort header files declarations.
> 	- Replace some bit definations with GENMASK() and BIT().
> 	- Clean up some code and comments that's useless for now.
> 	- Change the order of some the definations of some variables to reversed
> 	  xmas tree order.
> 	- Using do...while() rather while and check.
> 	- Replace pr_err() with dev_err().
> 	- Remove device id declaration since we recommend to use DT.
> 	- Remove .owner = THIS_MODULE.
> 	- Replace probe() with probe_new() hook.
> 	- Remove IIO_BUFFER and IIO_TRIGGERED_BUFFER dependences.
> 	- Change the driver module name to vl53l0x-i2c.
> 	- Align all the parameters if they are in the same function with open
> 	  parentheses.
> 	- Replace iio_device_register() with devm_iio_device_register
> 	  for better resource management.
> 	- Remove the vl53l0x_remove() since it's not needed.
> 	- Remove dev_set_drvdata() since it's already setted above.
> 
>  .../bindings/iio/proximity/vl53l0x.txt        |  12 ++
>  MAINTAINERS                                   |   7 +

Otherwise,

Reviewed-by: Rob Herring <robh@xxxxxxxxxx>

>  drivers/iio/proximity/Kconfig                 |  11 ++
>  drivers/iio/proximity/Makefile                |   2 +
>  drivers/iio/proximity/vl53l0x-i2c.c           | 180 ++++++++++++++++++
>  5 files changed, 212 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/proximity/vl53l0x.txt
>  create mode 100644 drivers/iio/proximity/vl53l0x-i2c.c



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