| Message ID | 20240524143150.610949-5-abailon@baylibre.com |
|---|---|
| State | New |
| Headers | show |
| Series | thermal: Add support of multiple sensors | expand |
On 24/05/2024 16:31, Alexandre Bailon wrote: > This adds a new property named "aggregation" that could be used to > select the aggregation type when there are multiple sensors assigned > to a thermal zone. > > Signed-off-by: Alexandre Bailon <abailon@baylibre.com> > --- > .../devicetree/bindings/thermal/thermal-zones.yaml | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml > index fa7a72e2ba44..e6e4b46773e3 100644 > --- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml > +++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml > @@ -111,6 +111,14 @@ patternProperties: > coefficients are ordered and are matched with sensors by means of the > sensor ID. Additional coefficients are interpreted as constant offset. > > + aggregation: > + $ref: /schemas/types.yaml#/definitions/string > + enum: > + - avg > + - max > + description: > + Aggregation type to use compute a temperature from multiple sensors. Hm, why exactly this is a property of hardware? Why on one board you would like to average and on other use max? I can only think of a case that some sensors give inaccurate data. Otherwise it is OS policy. Best regards, Krzysztof
On Fri, May 24, 2024 at 04:31:48PM +0200, Alexandre Bailon wrote: > This adds a new property named "aggregation" that could be used to > select the aggregation type when there are multiple sensors assigned > to a thermal zone. > > Signed-off-by: Alexandre Bailon <abailon@baylibre.com> > --- > .../devicetree/bindings/thermal/thermal-zones.yaml | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml > index fa7a72e2ba44..e6e4b46773e3 100644 > --- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml > +++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml > @@ -111,6 +111,14 @@ patternProperties: > coefficients are ordered and are matched with sensors by means of the > sensor ID. Additional coefficients are interpreted as constant offset. > > + aggregation: > + $ref: /schemas/types.yaml#/definitions/string > + enum: > + - avg > + - max > + description: > + Aggregation type to use compute a temperature from multiple sensors. This is optional, so what's the default? I suppose you could make it required if more than 1 sensor. A boolean could work here as well unless you think there might be a 3rd algorithm. > + > sustainable-power: > $ref: /schemas/types.yaml#/definitions/uint32 > description: > -- > 2.44.1 >
On 5/27/24 08:55, Krzysztof Kozlowski wrote: > On 24/05/2024 16:31, Alexandre Bailon wrote: >> This adds a new property named "aggregation" that could be used to >> select the aggregation type when there are multiple sensors assigned >> to a thermal zone. >> >> Signed-off-by: Alexandre Bailon <abailon@baylibre.com> >> --- >> .../devicetree/bindings/thermal/thermal-zones.yaml | 8 ++++++++ >> 1 file changed, 8 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml >> index fa7a72e2ba44..e6e4b46773e3 100644 >> --- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml >> +++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml >> @@ -111,6 +111,14 @@ patternProperties: >> coefficients are ordered and are matched with sensors by means of the >> sensor ID. Additional coefficients are interpreted as constant offset. >> >> + aggregation: >> + $ref: /schemas/types.yaml#/definitions/string >> + enum: >> + - avg >> + - max >> + description: >> + Aggregation type to use compute a temperature from multiple sensors. > > Hm, why exactly this is a property of hardware? Why on one board you > would like to average and on other use max? I can only think of a case > that some sensors give inaccurate data. Otherwise it is OS policyIn the case of Mediatek SoC, we only need max temperature. I am not really sure if there is really an use case for the average. Maybe I should drop average if no-one has a use case for it. Best Regards, Alexandre > > Best regards, > Krzysztof >
diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml index fa7a72e2ba44..e6e4b46773e3 100644 --- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml +++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml @@ -111,6 +111,14 @@ patternProperties: coefficients are ordered and are matched with sensors by means of the sensor ID. Additional coefficients are interpreted as constant offset. + aggregation: + $ref: /schemas/types.yaml#/definitions/string + enum: + - avg + - max + description: + Aggregation type to use compute a temperature from multiple sensors. + sustainable-power: $ref: /schemas/types.yaml#/definitions/uint32 description:
This adds a new property named "aggregation" that could be used to select the aggregation type when there are multiple sensors assigned to a thermal zone. Signed-off-by: Alexandre Bailon <abailon@baylibre.com> --- .../devicetree/bindings/thermal/thermal-zones.yaml | 8 ++++++++ 1 file changed, 8 insertions(+)