diff mbox series

[v5,13/21] dt-bindings: hwmon: (mr75203) add "moortec,vm-pre-scaler-x2" property

Message ID 20220908152449.35457-14-farbere@amazon.com (mailing list archive)
State Accepted
Headers show
Series Variety of fixes and new features for mr75203 driver | expand

Commit Message

Farber, Eliav Sept. 8, 2022, 3:24 p.m. UTC
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>
---
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(+)

Comments

Rob Herring (Arm) Sept. 13, 2022, 11:50 a.m. UTC | #1
On Thu, 08 Sep 2022 15:24:41 +0000, Eliav Farber wrote:
> 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>
> ---
> 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(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>
Guenter Roeck Sept. 19, 2022, 1:01 p.m. UTC | #2
On Thu, Sep 08, 2022 at 03:24:41PM +0000, Eliav Farber wrote:
> 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>

Applied to hwmon-next.

Thanks,
Guenter
diff mbox series

Patch

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>;
     };