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iio: Add macro to populate struct iio_map array

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The GPIO core provides a handy GPIO_LOOKUP() macro to populate a struct
gpiod_lookup array without having to spell out attribute names (but
still avoid breakage when attributes within the struct are rearranged
or added).

The axp288_adc.c driver uses a similar macro to populate a struct
iio_map array.  Make it available to others.

Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Lukas Wunner
2017-11-25 09:38:17 +01:00
committed by Jonathan Cameron
parent cccae60486
commit 8d05ffd2b8
2 changed files with 13 additions and 14 deletions
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7
include/linux/iio/machine.h
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@@ -28,4 +28,11 @@ struct iio_map {
void *consumer_data;
};
#define IIO_MAP(_provider_channel, _consumer_dev_name, _consumer_channel) \
{ \
.adc_channel_label = _provider_channel, \
.consumer_dev_name = _consumer_dev_name, \
.consumer_channel = _consumer_channel, \
}
#endif