Add a devicetree binding for the ltc2990 hwmon driver.
Signed-off-by: Tom Levens <tom.levens@xxxxxxx>
---
.../devicetree/bindings/hwmon/ltc2990.txt | 36 ++++++++++++++++++++++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/ltc2990.txt
diff --git a/Documentation/devicetree/bindings/hwmon/ltc2990.txt b/Documentation/devicetree/bindings/hwmon/ltc2990.txt
new file mode 100644
index 0000000..f92f540
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ltc2990.txt
@@ -0,0 +1,36 @@
+ltc2990: Linear Technology LTC2990 power monitor
+
+Required properties:
+- compatible: Must be "lltc,ltc2990"
+- reg: I2C slave address
+- lltc,meas-mode:
+ An array of two integers for configuring the chip measurement mode.
+
+ The first integer defines the bits 2..0 in the control register. In all
+ cases the internal temperature and supply voltage are measured. In
+ addition the following input measurements are enabled per mode:
+
+ 0: V1, V2, TR2
+ 1: V1-V2, TR2
+ 2: V1-V2, V3, V4
+ 3: TR1, V3, V4
+ 4: TR1, V3-V4
+ 5: TR1, TR2
+ 6: V1-V2, V3-V4
+ 7: V1, V2, V3, V4
+
+ The second integer defines the bits 4..3 in the control register. This
+ allows a subset of the measurements to be enabled:
+
+ 0: Internal temperature and supply voltage only
+ 1: TR1, V1 or V1-V2 only per mode
+ 2: TR2, V3 or V3-V4 only per mode
+ 3: All measurements per mode
+
+Example:
+
+ltc2990@4c {
+ compatible = "lltc,ltc2990";
+ reg = <0x4c>;
+ lltc,meas-mode = <7 3>; /* V1, V2, V3, V4 */
+};
--
1.8.3.1
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