lkml.org 
[lkml]   [2022]   [Sep]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v4 14/21] dt-bindings: hwmon: (mr75203) add "moortec,vm-pre-scaler-x2" property
Date
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(+)

diff --git a/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml b/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
index 2aa4c3618596..de92a21d5552 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 nou 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
\
 
 \ /
  Last update: 2022-09-06 10:42    [W:0.197 / U:2.224 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site