From: Liam Beguin <liambeguin@gmail.com>
To: liambeguin@gmail.com, peda@axentia.se, jic23@kernel.org,
lars@metafoo.de, pmeerw@pmeerw.net
Cc: linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org,
devicetree@vger.kernel.org, robh+dt@kernel.org
Subject: [PATCH v1 4/9] iio: afe: rescale: add offset support
Date: Sat, 29 May 2021 20:59:12 -0400 [thread overview]
Message-ID: <20210530005917.20953-5-liambeguin@gmail.com> (raw)
In-Reply-To: <20210530005917.20953-1-liambeguin@gmail.com>
From: Liam Beguin <lvb@xiphos.com>
This is a preparatory change required for the addition of temperature
sensing front ends.
Signed-off-by: Liam Beguin <lvb@xiphos.com>
---
drivers/iio/afe/iio-rescale.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/iio/afe/iio-rescale.c b/drivers/iio/afe/iio-rescale.c
index 4d0813b274d1..3bd1f11f21db 100644
--- a/drivers/iio/afe/iio-rescale.c
+++ b/drivers/iio/afe/iio-rescale.c
@@ -31,6 +31,7 @@ struct rescale {
struct iio_chan_spec_ext_info *ext_info;
s32 numerator;
s32 denominator;
+ s32 offset;
};
static int rescale_read_raw(struct iio_dev *indio_dev,
@@ -52,6 +53,10 @@ static int rescale_read_raw(struct iio_dev *indio_dev,
*val2 = rescale->denominator;
return IIO_VAL_FRACTIONAL;
+ case IIO_CHAN_INFO_OFFSET:
+ *val = rescale->offset;
+
+ return IIO_VAL_INT;
default:
return -EINVAL;
}
@@ -119,8 +124,10 @@ static int rescale_configure_channel(struct device *dev,
return -EINVAL;
}
- chan->info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
- BIT(IIO_CHAN_INFO_SCALE);
+ chan->info_mask_separate =
+ BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_SCALE) |
+ BIT(IIO_CHAN_INFO_OFFSET);
if (iio_channel_has_available(schan, IIO_CHAN_INFO_RAW))
chan->info_mask_separate_available |= BIT(IIO_CHAN_INFO_RAW);
@@ -280,6 +287,7 @@ static int rescale_probe(struct platform_device *pdev)
rescale->cfg = of_device_get_match_data(dev);
rescale->numerator = 1;
rescale->denominator = 1;
+ rescale->offset = 0;
ret = rescale->cfg->props(dev, rescale);
if (ret)
--
2.30.1.489.g328c10930387
next prev parent reply other threads:[~2021-05-30 0:59 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-30 0:59 [PATCH v1 0/9] iio: afe: add temperature rescaling support Liam Beguin
2021-05-30 0:59 ` [PATCH v1 1/9] iio: inkern: always apply scale requested by consumer Liam Beguin
2021-05-31 13:39 ` Peter Rosin
2021-05-30 0:59 ` [PATCH v1 2/9] iio: inkern: error out on unsupported offset type Liam Beguin
2021-05-31 9:45 ` Peter Rosin
2021-05-31 13:31 ` Liam Beguin
2021-05-30 0:59 ` [PATCH v1 3/9] iio: afe: rescale: use core to get processed value Liam Beguin
2021-05-31 7:09 ` Peter Rosin
2021-05-31 13:23 ` Liam Beguin
2021-06-01 16:22 ` Jonathan Cameron
2021-05-30 0:59 ` Liam Beguin [this message]
2021-05-31 8:52 ` [PATCH v1 4/9] iio: afe: rescale: add offset support Peter Rosin
2021-05-31 13:36 ` Liam Beguin
2021-05-31 14:08 ` Peter Rosin
2021-05-31 14:51 ` Liam Beguin
2021-05-31 16:25 ` Peter Rosin
2021-05-31 17:42 ` Liam Beguin
2021-06-01 16:31 ` Jonathan Cameron
2021-05-30 0:59 ` [PATCH v1 5/9] iio: afe: rescale: add support for temperature sensors Liam Beguin
2021-06-01 16:34 ` Jonathan Cameron
2021-05-30 0:59 ` [PATCH v1 6/9] dt-bindings: iio: afe: update MAINTAINERS file Liam Beguin
2021-05-31 7:57 ` Peter Rosin
2021-05-30 0:59 ` [PATCH v1 7/9] dt-bindings: iio: afe: add binding for temperature-sense-rtd Liam Beguin
2021-06-01 16:43 ` Jonathan Cameron
2021-06-04 21:17 ` Rob Herring
2021-06-05 14:58 ` Jonathan Cameron
2021-05-30 0:59 ` [PATCH v1 8/9] dt-bindings: iio: afe: add binding for temperature-sense-current Liam Beguin
2021-05-31 7:28 ` Peter Rosin
2021-05-31 8:58 ` Peter Rosin
2021-05-31 13:41 ` Liam Beguin
2021-06-01 16:47 ` Jonathan Cameron
2021-06-04 21:21 ` Rob Herring
2021-05-30 0:59 ` [PATCH v1 9/9] dt-bindings: iio: afe: add binding for temperature-sense-amplifier Liam Beguin
2021-05-31 7:32 ` Peter Rosin
2021-05-31 14:03 ` Liam Beguin
2021-06-01 16:02 ` Jonathan Cameron
2021-06-01 16:07 ` Jonathan Cameron
2021-06-01 15:59 ` Jonathan Cameron
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