On Mon, Mar 20, 2017 at 12:15:52PM -0500, Rob Herring wrote:

On Sun, Mar 12, 2017 at 07:07:40PM +0000, Russell King wrote:

quoted

Allow hwmon devices to be optionally created for of-thermal zones,
rather than permanently denying them "in case" there is a hwmon
driver duplicating the thermal driver.

Signed-off-by: Russell King <redacted>
---
Without this, "sensors" is unable to report the temperature of the
Dove SoC when it supports thermal zones.

 Documentation/devicetree/bindings/thermal/thermal.txt | 3 +++
 arch/arm/boot/dts/dove.dtsi                           | 1 +
 drivers/thermal/of-thermal.c                          | 3 ++-
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/thermal/thermal.txt b/Documentation/devicetree/bindings/thermal/thermal.txt
index 88b6ea1ad290..1478735fff85 100644
--- a/Documentation/devicetree/bindings/thermal/thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/thermal.txt

@@ -175,6 +175,9 @@ containing trip nodes and one sub-node containing all the zone cooling maps.
 			2000mW, while on a 10'' tablet is around
 			4500mW.
 
+- linux,hwmon:		Allow Linux to create hwmon devices for the thermal
+  Type: bool		zone.
+
 Note: The delay properties are bound to the maximum dT/dt (temperature
 derivative over time) in two situations for a thermal zone:
 (i)  - when passive cooling is activated (polling-delay-passive); and

diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index 40fb98687230..00f5971cd039 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi

@@ -804,6 +804,7 @@
 
 	thermal-zones {
 		soc-thermal {
+			linux,hwmon;

I'd prefer to see a black or white list of sensor compatibles here. Then 
the dtb doesn't need to change if things move between hwmon and thermal 
zones.

I'm not sure what you mean, and I can't see how that would be coded up.
The thermal layer doesn't give the option of individually selecting
which sensors have hwmon stuff created - it seems to be all or nothing.
I suspect what you're asking would require something of a rewrite of
the thermal code.  The sensors are registered completely independently
of parsing the thermal zone data.

-- 
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