On Tue, Jan 9, 2018 at 11:31 PM, Jae Hyun Yoo
<jae.hyun.yoo@xxxxxxxxxxxxxxx> wrote:
This commit add a dt-bindings document for a generic PECI hwmon
driver.
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@xxxxxxxxxxxxxxx>
---
.../devicetree/bindings/hwmon/peci-hwmon.txt | 33 ++++++++++++++++++++++
1 file changed, 33 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/peci-hwmon.txt
diff --git a/Documentation/devicetree/bindings/hwmon/peci-hwmon.txt b/Documentation/devicetree/bindings/hwmon/peci-hwmon.txt
new file mode 100644
index 0000000..20b86f5
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/peci-hwmon.txt
@@ -0,0 +1,33 @@
+* Generic PECI (Platform Environment Control Interface) hwmon driver.
+
+Dependency:
+- This driver uses a PECI misc driver as a controller interface so one of PECI
+ misc drivers which provides compatible ioctls has to be enabled.
The binding should only explain how we describe the hardware in an
operating-system
independent way, but not talk about how an OS is supposed to implement those
drivers.
Having multiple drivers each provide an exported function is not possible
in Linux: it immediately breaks building an 'allyesconfig' kernel, and prevents
you from running the same kernel across multiple implementations, so that
has to be redesigned anyway.
+Required properties:
+- compatible: "peci-hwmon"
+- cpu-id: Should contain CPU socket ID
+ - 0 ~ 7
+
+Optional properties:
+- show-core: If this protperty is defined, core tmeperature attrubites will be
s/protperty/property/
s/tmeperature/temperature/
s/attrubites/attributes/
+ enumerated.
+- dimm-nums: Should contain the number of DIMM slots that attached to each CPU
+ which is indicated by cpu-id.
+ 0 ~ 16 (default: 16)
+ In case of 0, DIMM temperature attrubites will not be enumerated.
Is this only an initial list that you expect to be extended in the
future, or is this
a complete list of sensors that can ever be connected to PECI?
Should this be PECI version specific?
Arnd