[PATCH v3 10/19] dt-bindings: hwmon: (mr75203) add "moortec,vm-pre-scaler" property

Eliav Farber
2022-08-30T19:23:08Z

Add support for mr76006 pre-scaler which provides divide-by-2 scaling of
input voltage, which can then be presented for VM for measurement within
its range (the VM input range is limited to -0.1V to 1V).

The new "moortec,vm-pre-scaler" property lists the channels that use a
pre-scaler.

The driver will use this list to multiply the voltage result by 2, to
present to the user the actual voltage input source.

Signed-off-by: Eliav Farber <farbere@amazon.com>
---
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 | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml b/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
index 69cc6caceb2c..4c983d8f8fe7 100644
--- a/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
+++ b/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
@@ -54,6 +54,16 @@ properties:
default: 16
$ref: /schemas/types.yaml#definitions/uint8-array

+ moortec,vm-pre-scaler:
+ description:
+ moortec,vm-pre-scaler property is an array of channels that use a mr76006
+ pre-scaler to divides 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 the actual value
+ of the voltage source.
+ default: 1
+ $ref: /schemas/types.yaml#definitions/uint8-array
+
required:
- compatible
- reg
@@ -76,5 +86,6 @@ examples:
clocks = <&osc0>;
resets = <&rcu0 0x40 7>;
moortec,vm-active-channels = <0x10 0x05>;
+ moortec,vm-pre-scaler = <5 6>;
#thermal-sensor-cells = <1>;
};
--
2.37.1