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| author |   Eliav Farber <farbere@amazon.com> | 2022-09-08 15:24:41 +0000 |
|---|---|---|
| committer |   Guenter Roeck <linux@roeck-us.net> | 2022-09-19 06:17:06 -0700 |
| commit | 64a2486c392506fc14db843bbc5998d567f22c6f (patch) | |
| tree | c643ce319b2fb1962a2a4583160f313651c39435 /Documentation/devicetree/bindings/hwmon | |
| parent | hwmon: (mr75203) add VM active channel support (diff) | |
| download | linux-dev-64a2486c392506fc14db843bbc5998d567f22c6f.tar.xz linux-dev-64a2486c392506fc14db843bbc5998d567f22c6f.zip | |
dt-bindings: hwmon: (mr75203) add "moortec,vm-pre-scaler-x2" property
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@amazon.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220908152449.35457-14-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/devicetree/bindings/hwmon')
| -rw-r--r-- | Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml | 13 |
1 files changed, 13 insertions, 0 deletions
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>; }; |