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SubjectRe: [PATCH v5] iio: proximity: Add driver support for ST's VL53L0X ToF ranging sensor.
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@gmail.com>

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@kernel.org>

> 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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