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From: =?utf-8?q?M=C3=A5rten_Lindahl?= <marten.lindahl@axis.com>
Date: Fri, 15 Dec 2023 13:43:04 +0100
Subject: [PATCH 1/2] iio: core: Introduce resolution standard attribute
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Introduce a new IIO standard attribute to set bit resolution of the
data *_raw readings dynamically using sysfs.

Needed to set 16 bit data width (high definition) with the VCNL4040
driver.

Signed-off-by: Mårten Lindahl <marten.lindahl@axis.com>
---
 drivers/iio/industrialio-core.c | 1 +
 include/linux/iio/types.h       | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index c77745b594bd..4316e0290404 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -182,6 +182,7 @@ static const char * const iio_chan_info_postfix[] = {
 	[IIO_CHAN_INFO_THERMOCOUPLE_TYPE] = "thermocouple_type",
 	[IIO_CHAN_INFO_CALIBAMBIENT] = "calibambient",
 	[IIO_CHAN_INFO_ZEROPOINT] = "zeropoint",
+	[IIO_CHAN_INFO_RESOLUTION] = "resolution",
 };
 /**
  * iio_device_id() - query the unique ID for the device
diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
index 117bde7d6ad7..7de4d83ca105 100644
--- a/include/linux/iio/types.h
+++ b/include/linux/iio/types.h
@@ -68,6 +68,7 @@ enum iio_chan_info_enum {
 	IIO_CHAN_INFO_THERMOCOUPLE_TYPE,
 	IIO_CHAN_INFO_CALIBAMBIENT,
 	IIO_CHAN_INFO_ZEROPOINT,
+	IIO_CHAN_INFO_RESOLUTION,
 };
 
 #endif /* _IIO_TYPES_H_ */

-- 
2.30.2