By default, ina3221, as a hardware monitor, continuously measures
the inputs and generates corresponding data. However, for battery
powered devices, this mode might be power consuming.
This patch adds a "ti,single-shot" property to allow changing the
default continuous mode to single-shot operating mode.
Signed-off-by: Nicolin Chen
---
Documentation/devicetree/bindings/hwmon/ina3221.txt | 10 ++
1 file changed, 10 insertions(+)
diff --git a/Documentation/devicetree/bindings/hwmon/ina3221.txt
b/Documentation/devicetree/bindings/hwmon/ina3221.txt
index a7b25caa2b8e..fa63b6171407 100644
--- a/Documentation/devicetree/bindings/hwmon/ina3221.txt
+++ b/Documentation/devicetree/bindings/hwmon/ina3221.txt
@@ -6,6 +6,16 @@ Texas Instruments INA3221 Device Tree Bindings
- reg: I2C address
Optional properties:
+ - ti,single-shot: This chip has two power modes: single-shot (chip takes one
+measurement and then shuts itself down) and continuous (
+chip takes continuous measurements). The continuous mode is
+more reliable and suitable for hardware monitor type
device,
+but the single-shot mode is more power-friendly and useful
+for battery-powered device which cares power consumptions
+while still needs some measurements occasionally.
+If this property is present, the single-shot mode will be
+used, instead of the default continuous one for monitoring.
+
= The node contains optional child nodes for three channels =
= Each child node describes the information of input source =
--
2.17.1
