iio: ABI: document calibscale_available attributes

There are a number of light sensor drivers that have various
calibscale_available attributes. Up to now, these were missing from
the documentation.

Kernel version 4.8 is used since the first use appears to be in
commit eb869ade30a6 ("iio: Add tcs3472 color light sensor driver").

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240815-iio-abi-calib-audit-v1-1-536b2fea8620@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 78eca1698123202d61af8a42fb5f3b3e343005f5..67d8d1df23d429717a2b0e9a9421f0387f193f1d 100644 (file)
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -575,6 +575,19 @@ Description:
                production inaccuracies).  If shared across all channels,
                <type>_calibscale is used.
 
+What:          /sys/bus/iio/devices/iio:deviceX/in_illuminanceY_calibscale_available
+What:          /sys/bus/iio/devices/iio:deviceX/in_intensityY_calibscale_available
+What:          /sys/bus/iio/devices/iio:deviceX/in_proximityY_calibscale_available
+KernelVersion: 4.8
+Contact:       linux-iio@vger.kernel.org
+Description:
+               Available values of calibscale. Maybe expressed as either of:
+
+               - a small discrete set of values like "1 8 16"
+               - a range specified as "[min step max]"
+
+               If shared across all channels, <type>_calibscale_available is used.
+
 What:          /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
 What:          /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
 What:          /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender