[PATCH v4 3/3] iio: documentation: light: Add veml6030 sysfs documentation

[Rishi Gupta]

The driver for veml6030 light sensor provides custom sysfs entries
used to know parameters supported by the driver and to configure
sensor like setting power saving mode and persistence etc. This
commit document them.

Signed-off-by: Rishi Gupta <gupt21@xxxxxxxxx>
---
Changes in v4:
* None

Changes in v3:
* Updated Date from September to October
* Updated KernelVersion from 5.3.1 to 5.4
* in_illuminance_period_available is now in events directory

Changes in v2:
* None

 .../ABI/testing/sysfs-bus-iio-light-veml6030       | 49 ++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-light-veml6030

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-light-veml6030 b/Documentation/ABI/testing/sysfs-bus-iio-light-veml6030
new file mode 100644
index 0000000..13cd321
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-light-veml6030
@@ -0,0 +1,49 @@
+What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_psm_available
+Date:		October 2019
+KernelVersion:	5.4
+Contact:	Rishi Gupta <gupt21@xxxxxxxxx>
+Description:
+		Provides list of valid values that can be used to activate a
+		particular power saving mode in sensor. For ex; 1 means psm
+		mode 1 and 2 means psm mode 2 and so on.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_psm
+Date:		October 2019
+KernelVersion:	5.4
+Contact:	Rishi Gupta <gupt21@xxxxxxxxx>
+Description:
+		Writing '1' will activate power saving mode 1 in sensor.
+		Similarly, 2 is to activate psm mode 2 and so on.
+
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_illuminance_period_available
+Date:		October 2019
+KernelVersion:	5.4
+Contact:	Rishi Gupta <gupt21@xxxxxxxxx>
+Description:
+		List of valid values available in multiples of integration time
+		for which the light intensity must be above the cutoff level
+		before interrupt is asserted. This refers to persistence values.
+
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_illuminance_thresh_either_period
+Date:		October 2019
+KernelVersion:	5.4
+Contact:	Rishi Gupta <gupt21@xxxxxxxxx>
+Description:
+		Value in multiple of integration time for which the light intensity must
+		be above the cutoff level before interrupt is asserted.
+
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_illuminance_thresh_rising_value
+Date:		October 2019
+KernelVersion:	5.4
+Contact:	Rishi Gupta <gupt21@xxxxxxxxx>
+Description:
+		Raw threshold value from 0 to 0xffffffff. An interrupt will be asserted whenever
+		light intensity is above this value.
+
+What:		/sys/bus/iio/devices/iio:deviceX/events/in_illuminance_thresh_falling_value
+Date:		October 2019
+KernelVersion:	5.4
+Contact:	Rishi Gupta <gupt21@xxxxxxxxx>
+Description:
+		Raw threshold value from 0 to 0xffffffff. An interrupt will be asserted whenever
+		light intensity is below this value.
-- 
2.7.4