Add support for mr76006 pre-scaler which provides divide-by-2 scaling of
the input voltage, so that it can be presented to the VM for measurement
within its range (the VM input range is limited to -0.1V to 1V).
The new "moortec,vm-pre-scaler-x2" property lists the channels that use
the mr76006 pre-scaler.
The driver will use this list to multiply the voltage result by 2, to
present to the user with the actual voltage input source.
Signed-off-by: Eliav Farber <farbere@xxxxxxxxxx>
---
V4 -> V3:
- Rename "moortec,vm-pre-scaler" to "moortec,vm-pre-scaler-x2".
- Added mximum number if items in description.
V3 -> V2:
- Add "moortec" prefix to property name.
- Change property format to be a single u8 array.
- Fix typo: scalar --> scaler.
.../devicetree/bindings/hwmon/moortec,mr75203.yaml | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml b/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
index 5d4bf0edea5c..d6b03a6d7043 100644
--- a/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
+++ b/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
@@ -79,6 +79,18 @@ properties:
Minimum value of each item - 0 (which means entire VM sensor is not used).
$ref: /schemas/types.yaml#/definitions/uint8-array
+ moortec,vm-pre-scaler-x2:
+ description:
+ Defines the channels that use a mr76006 pre-scaler to divide the input
+ source by 2.
+ The pre-scaler is used for input sources that exceed the VM input range.
+ The driver uses this information to present to the user with the actual
+ value of the voltage source.
+ For channels that are not listed, no pre-scaler is assumed.
+ Maximum number of items - total number of channels in all VMs.
+ Each channel should not appear more than once.
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+
required:
- compatible
- reg
@@ -101,5 +113,6 @@ examples:
clocks = <&osc0>;
resets = <&rcu0 0x40 7>;
moortec,vm-active-channels = /bits/ 8 <0x10 0x05>;
+ moortec,vm-pre-scaler-x2 = /bits/ 8 <5 6 20>;
#thermal-sensor-cells = <1>;
};
--
2.37.1
