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SubjectRe: [PATCH 2/2] iio: afe: unit-converter: add support for adi,lt6106
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On 04/11/2018 05:43 PM, Andrew F. Davis wrote:
> On 04/11/2018 09:15 AM, Peter Rosin wrote:
>> This is a current sense amplifier from Analog Devices.
>>
>> Signed-off-by: Peter Rosin <peda@axentia.se>
>> ---
>> drivers/iio/afe/Kconfig | 3 +-
>> drivers/iio/afe/iio-unit-converter.c | 54 ++++++++++++++++++++++++++++++++++++
>> 2 files changed, 56 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/iio/afe/Kconfig b/drivers/iio/afe/Kconfig
>> index 642ce4eb12a6..0e10fe8f459a 100644
>> --- a/drivers/iio/afe/Kconfig
>> +++ b/drivers/iio/afe/Kconfig
>> @@ -10,7 +10,8 @@ config IIO_UNIT_CONVERTER
>> depends on OF || COMPILE_TEST
>> help
>> Say yes here to build support for the IIO unit converter
>> - that handles voltage dividers and current sense shunts.
>> + that handles voltage dividers, current sense shunts and
>> + the LT6106 Current Sense Amplifier from Analog Devices.
>
> Could work better to split these out into separate drivers. Maybe a
> iio-shunt-resistor.c that does just voltage->current with the
> appropriate scaling. Then make a a separate lt6106.c.

I don't think we need a separate driver here. There are tons of circuits
that all work the same way and all require the same properties. If we'd add
a driver for each of them we'd get buried in boilerplate code.

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