| Message ID | aed4d900061c5733decc429d0d0816122dba0991.1552700652.git.renatogeh@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | staging: iio: ad7780: move out of staging | expand |
On Fri, 15 Mar 2019 23:13:13 -0300 Renato Lui Geh <renatogeh@gmail.com> wrote: > This patch adds a new functionality of reading gain values from the > ad778x chips. This value is stored in the chip's state struct and is > updated whenever a read or write call is performed on the driver. > > Signed-off-by: Renato Lui Geh <renatogeh@gmail.com> Applied, thanks > --- > drivers/staging/iio/adc/ad7780.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c > index f4cd7bc3e02f..fbcc0d3345ca 100644 > --- a/drivers/staging/iio/adc/ad7780.c > +++ b/drivers/staging/iio/adc/ad7780.c > @@ -42,6 +42,8 @@ > #define AD7780_GAIN_MIDPOINT 64 > #define AD7780_FILTER_MIDPOINT 13350 > > +static const unsigned int ad778x_gain[2] = { 1, 128 }; > + > struct ad7780_chip_info { > struct iio_chan_spec channel; > unsigned int pattern_mask; > @@ -179,6 +181,9 @@ static int ad7780_postprocess_sample(struct ad_sigma_delta *sigma_delta, > ((raw_sample & chip_info->pattern_mask) != chip_info->pattern)) > return -EIO; > > + if (chip_info->is_ad778x) > + st->gain = ad778x_gain[raw_sample & AD7780_GAIN]; > + > return 0; > } >
diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c index f4cd7bc3e02f..fbcc0d3345ca 100644 --- a/drivers/staging/iio/adc/ad7780.c +++ b/drivers/staging/iio/adc/ad7780.c @@ -42,6 +42,8 @@ #define AD7780_GAIN_MIDPOINT 64 #define AD7780_FILTER_MIDPOINT 13350 +static const unsigned int ad778x_gain[2] = { 1, 128 }; + struct ad7780_chip_info { struct iio_chan_spec channel; unsigned int pattern_mask; @@ -179,6 +181,9 @@ static int ad7780_postprocess_sample(struct ad_sigma_delta *sigma_delta, ((raw_sample & chip_info->pattern_mask) != chip_info->pattern)) return -EIO; + if (chip_info->is_ad778x) + st->gain = ad778x_gain[raw_sample & AD7780_GAIN]; + return 0; }
This patch adds a new functionality of reading gain values from the ad778x chips. This value is stored in the chip's state struct and is updated whenever a read or write call is performed on the driver. Signed-off-by: Renato Lui Geh <renatogeh@gmail.com> --- drivers/staging/iio/adc/ad7780.c | 5 +++++ 1 file changed, 5 insertions(+)