sensors: occ: Add support to clear sensor groups

Adds a generic API to clear sensor groups. OCC inband sensor groups
such as CSM, Profiler and Job Scheduler can be cleared using this API.
It will clear the min/max of all sensors belonging to OCC sensor
groups.

Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>

1 files changed, 40 insertions, 0 deletions

diff --git a/doc/device-tree/ibm,opal/sensor-groups.rst b/doc/device-tree/ibm,opal/sensor-groups.rst
new file mode 100644
index 0000000..af21e7d
--- /dev/null
+++ b/doc/device-tree/ibm,opal/sensor-groups.rst
@@ -0,0 +1,40 @@
+ibm,opal/sensor-groups
+----------------------
+
+This node contains all sensor groups defined in the system.
+Each child node here represents a sensor group.
+
+For example : ::
+        occ-csm@1c00020/
+
+The compatible property is set to "ibm,opal-occ-sensor-group"
+
+Each child node has below properties:
+
+`type`
+  string to indicate the sensor group
+
+`sensor-group-id`
+  Uniquely identifies a sensor group.
+
+`ibm,chip-id`
+  This property is added if the sensor group is chip specific
+
+`sensors`
+  Phandles of all sensors belonging to this sensor group
+
+.. code-block:: dts
+
+   ibm,opal {
+     sensor-groups {
+        compatible = "ibm,opal-occ-sensor-group";
+
+        occ-csm@1c00020 {
+                name = "occ-csm"
+                type = "csm"
+                sensor-group-id = <0x01c00020>
+                ibm,chip-id = <0x00000008>
+                phandles = <
+        };
+     };
+    };