linux-kernel - [PATCH v4 12/21] dt-bindings: hwmon: (mr75203) add "moortec,vm-active-channels" property

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Date:   Tue, 6 Sep 2022 08:33:47 +0000
From:   Eliav Farber <farbere@...zon.com>
To:     <jdelvare@...e.com>, <linux@...ck-us.net>, <robh+dt@...nel.org>,
        <p.zabel@...gutronix.de>, <rtanwar@...linear.com>,
        <linux-hwmon@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     <farbere@...zon.com>, <hhhawa@...zon.com>, <jonnyc@...zon.com>,
        <andriy.shevchenko@...el.com>
Subject: [PATCH v4 12/21] dt-bindings: hwmon: (mr75203) add "moortec,vm-active-channels" property

Add optional "moortec,vm-active-channels" property to define the number
of active channels per VM.

This shall be useful to avoid exposing sysfs for reading inputs that are
not connected to any voltage source.

Signed-off-by: Eliav Farber <farbere@...zon.com>
---
V4 -> V3:
- Fix DT checker errors.

V3 -> V2:
- Add "moortec" prefix to property name.
- Add explanation why this change is needed.

 .../devicetree/bindings/hwmon/moortec,mr75203.yaml     | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml b/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
index 9454576ebb73..2aa4c3618596 100644
--- a/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
+++ b/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
@@ -70,6 +70,15 @@ properties:
   "#thermal-sensor-cells":
     const: 1
 
+  moortec,vm-active-channels:
+    description:
+      Defines the number of channels per VM that are actually used and are
+      connected to some input source.
+      Maximum number of items - number of VMs.
+      Maximum value of each item - number of channels.
+      Minimum value of each item - 0 (which means entire VM sensor is nou used).
+    $ref: /schemas/types.yaml#/definitions/uint8-array
+
 required:
   - compatible
   - reg
@@ -91,5 +100,6 @@ examples:
         intel,vm-map = [03 01 04 ff ff];
         clocks = <&osc0>;
         resets = <&rcu0 0x40 7>;
+        moortec,vm-active-channels = /bits/ 8 <0x10 0x05>;
         #thermal-sensor-cells = <1>;
     };
-- 
2.37.1