From 0cc97f2e46e0b374bbf7efc30bad638d8974cf1e Mon Sep 17 00:00:00 2001 From: Beniamin Bia Date: Thu, 6 Feb 2020 17:11:46 +0200 Subject: [PATCH] iio: amplifiers: ad8366: Add write_raw_get_fmt function This patch add write_raw_get_fmt function to specify conversion for hardware gain. Signed-off-by: Beniamin Bia Signed-off-by: Jonathan Cameron --- drivers/iio/amplifiers/ad8366.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/iio/amplifiers/ad8366.c b/drivers/iio/amplifiers/ad8366.c index 0176d3d8cc9c..95972ab60f42 100644 --- a/drivers/iio/amplifiers/ad8366.c +++ b/drivers/iio/amplifiers/ad8366.c @@ -180,9 +180,22 @@ static int ad8366_write_raw(struct iio_dev *indio_dev, return ret; } +static int ad8366_write_raw_get_fmt(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + long mask) +{ + switch (mask) { + case IIO_CHAN_INFO_HARDWAREGAIN: + return IIO_VAL_INT_PLUS_MICRO_DB; + default: + return -EINVAL; + } +} + static const struct iio_info ad8366_info = { .read_raw = &ad8366_read_raw, .write_raw = &ad8366_write_raw, + .write_raw_get_fmt = &ad8366_write_raw_get_fmt, }; #define AD8366_CHAN(_channel) { \ -- 2.39.5