On Tue, Aug 30, 2022 at 07:22:09PM +0000, Eliav Farber wrote: > Add optional temperature coefficient properties: > *) moortec,ts-coeff-g > *) moortec,ts-coeff-h > *) moortec,ts-coeff-cal5 > *) moortec,ts-coeff-j > If defined they shall be used instead of defaults. > > The coefficients were added to device tree on top of the series property > (which can be used to select between series 5 and series 6), because > coefficients can vary between product and product, and code defaults might > not be accurate enough. > > Signed-off-by: Eliav Farber <farbere@xxxxxxxxxx> > --- > V3 -> V2: > - Add "moortec" prefix to property name. > > .../bindings/hwmon/moortec,mr75203.yaml | 33 +++++++++++++++++++ > 1 file changed, 33 insertions(+) > > diff --git a/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml b/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml > index ec2dbe7da9c2..a92da6064285 100644 > --- a/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml > +++ b/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml > @@ -74,6 +74,37 @@ properties: > default: 5 > $ref: /schemas/types.yaml#definitions/uint32 > > + moortec,ts-coeff-g: > + description: > + G coefficient for temperature equation. > + Value should be multiplied by factor 1000. If you just multiply the values here, you can specify 'multipleOf: 1000' Either way, some constraints would be nice. Or is 0 - 2^32 valid? > + Default for series 5 = 60000 > + Default for series 6 = 57400 > + $ref: /schemas/types.yaml#/definitions/uint32 > + > + moortec,ts-coeff-h: > + description: > + H coefficient for temperature equation. > + Value should be multiplied by factor 1000. > + Default for series 5 = 200000 > + Default for series 6 = 249400 > + $ref: /schemas/types.yaml#/definitions/uint32 > + > + moortec,ts-coeff-cal5: > + description: > + cal5 coefficient for temperature equation (can't be 0). minimum: 1 > + Default for series 5 = 4094 > + Default for series 6 = 4096 > + $ref: /schemas/types.yaml#/definitions/uint32 > + > + moortec,ts-coeff-j: > + description: > + J coefficient for temperature equation. > + Value should be multiplied by factor 1000. > + Default for series 5 = -100 > + Default for series 6 = 0 > + $ref: /schemas/types.yaml#/definitions/int32 > + > required: > - compatible > - reg > @@ -97,5 +128,7 @@ examples: > resets = <&rcu0 0x40 7>; > moortec,vm-active-channels = <0x10 0x05>; > moortec,vm-pre-scaler = <5 6>; > + moortec,ts-coeff-g = <61400>; > + moortec,ts-coeff-h = <253700>; > #thermal-sensor-cells = <1>; > }; > -- > 2.37.1 > >
