iio: adc: ad-sigma-delta: Document ABI for sigma delta adc

Add common calibration nodes for sigma delta adc.

Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
Link: https://patch.msgid.link/20241202-ad411x_calibration-v3-2-beb6aeec39e2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad-sigma-delta b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad-sigma-delta
new file mode 100644 (file)
index 0000000..a5a8a57
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad-sigma-delta
@@ -0,0 +1,23 @@
+What:          /sys/bus/iio/devices/iio:deviceX/in_voltageY_sys_calibration
+KernelVersion: 5.5
+Contact:       linux-iio@vger.kernel.org
+Description:
+               This attribute, if available, initiates the system calibration procedure. This is done on a
+               single channel at a time. Write '1' to start the calibration.
+
+What:          /sys/bus/iio/devices/iio:deviceX/in_voltageY_sys_calibration_mode_available
+KernelVersion: 5.5
+Contact:       linux-iio@vger.kernel.org
+Description:
+               This attribute, if available, returns a list with the possible calibration modes.
+               There are two available options:
+               "zero_scale" - calibrate to zero scale
+               "full_scale" - calibrate to full scale
+
+What:          /sys/bus/iio/devices/iio:deviceX/in_voltageY_sys_calibration_mode
+KernelVersion: 5.5
+Contact:       linux-iio@vger.kernel.org
+Description:
+               This attribute, if available, sets up the calibration mode used in the system calibration
+               procedure. Reading returns the current calibration mode.
+               Writing sets the system calibration mode.

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192 b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192
index f8315202c8f0df2bd4b7216f5cf8d3c2780fcf3f..28be1cabf1124ac7593392e17e4759ddfac829e8 100644 (file)
--- a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192
+++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192
@@ -19,33 +19,9 @@ Description:
                the bridge can be disconnected (when it is not being used
                using the bridge_switch_en attribute.
 
-What:          /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration
-KernelVersion:
-Contact:       linux-iio@vger.kernel.org
-Description:
-               Initiates the system calibration procedure. This is done on a
-               single channel at a time. Write '1' to start the calibration.
-
 What:          /sys/bus/iio/devices/iio:deviceX/in_voltage2-voltage2_shorted_raw
 KernelVersion:
 Contact:       linux-iio@vger.kernel.org
 Description:
                Measure voltage from AIN2 pin connected to AIN(+)
                and AIN(-) shorted.
-
-What:          /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration_mode_available
-KernelVersion:
-Contact:       linux-iio@vger.kernel.org
-Description:
-               Reading returns a list with the possible calibration modes.
-               There are two available options:
-               "zero_scale" - calibrate to zero scale
-               "full_scale" - calibrate to full scale
-
-What:          /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration_mode
-KernelVersion:
-Contact:       linux-iio@vger.kernel.org
-Description:
-               Sets up the calibration mode used in the system calibration
-               procedure. Reading returns the current calibration mode.
-               Writing sets the system calibration mode.