| Message ID | 20200331075356.19171-2-j-keerthy@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | thermal: k3: Add support for bandgap sensors | expand |
On Tue, Mar 31, 2020 at 1:24 PM Keerthy <j-keerthy@ti.com> wrote: > > Add VTM bindings documentation. In the Voltage Thermal > Management Module(VTM), K3 AM654 supplies a voltage > reference and a temperature sensor feature that are gathered in the band > gap voltage and temperature sensor (VBGAPTS) module. The band > gap provides current and voltage reference for its internal > circuits and other analog IP blocks. The analog-to-digital > converter (ADC) produces an output value that is proportional > to the silicon temperature. > > Signed-off-by: Keerthy <j-keerthy@ti.com> > Reviewed-by: Rob Herring <robh@kernel.org> > --- > > Changes in v5: > > * Added Reviewed-by: Rob Herring <robh@kernel.org> > > .../bindings/thermal/ti,am654-thermal.yaml | 56 +++++++++++++++++++ > 1 file changed, 56 insertions(+) > create mode 100644 Documentation/devicetree/bindings/thermal/ti,am654-thermal.yaml > > diff --git a/Documentation/devicetree/bindings/thermal/ti,am654-thermal.yaml b/Documentation/devicetree/bindings/thermal/ti,am654-thermal.yaml > new file mode 100644 > index 000000000000..d241b65d6072 > --- /dev/null > +++ b/Documentation/devicetree/bindings/thermal/ti,am654-thermal.yaml > @@ -0,0 +1,56 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/thermal/ti,am654-thermal.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Texas Instruments AM654 VTM (DTS) binding > + > +maintainers: > + - Keerthy <j-keerthy@ti.com> > + > +properties: > + compatible: > + const: ti,am654-vtm > + > + reg: > + maxItems: 1 > + > + power-domains: > + maxItems: 1 > + > + "#thermal-sensor-cells": > + const: 1 > + > +required: > + - "#thermal-sensor-cells" > + - compatible > + - reg > + - power-domains > + A nit-pick: arrange the required properties in order they're listed above. > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/soc/ti,sci_pm_domain.h> > + vtm: thermal@42050000 { > + compatible = "ti,am654-vtm"; > + reg = <0x0 0x42050000 0x0 0x25c>; > + power-domains = <&k3_pds 80 TI_SCI_PD_EXCLUSIVE>; > + #thermal-sensor-cells = <1>; > + }; > + > + mpu0_thermal: mpu0_thermal { > + polling-delay-passive = <250>; /* milliseconds */ > + polling-delay = <500>; /* milliseconds */ > + thermal-sensors = <&vtm0 0>; > + > + trips { > + mpu0_crit: mpu0_crit { > + temperature = <125000>; /* milliCelsius */ > + hysteresis = <2000>; /* milliCelsius */ > + type = "critical"; > + }; > + }; > + }; > +... > -- > 2.17.1 >
diff --git a/Documentation/devicetree/bindings/thermal/ti,am654-thermal.yaml b/Documentation/devicetree/bindings/thermal/ti,am654-thermal.yaml new file mode 100644 index 000000000000..d241b65d6072 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/ti,am654-thermal.yaml @@ -0,0 +1,56 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/thermal/ti,am654-thermal.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments AM654 VTM (DTS) binding + +maintainers: + - Keerthy <j-keerthy@ti.com> + +properties: + compatible: + const: ti,am654-vtm + + reg: + maxItems: 1 + + power-domains: + maxItems: 1 + + "#thermal-sensor-cells": + const: 1 + +required: + - "#thermal-sensor-cells" + - compatible + - reg + - power-domains + +additionalProperties: false + +examples: + - | + #include <dt-bindings/soc/ti,sci_pm_domain.h> + vtm: thermal@42050000 { + compatible = "ti,am654-vtm"; + reg = <0x0 0x42050000 0x0 0x25c>; + power-domains = <&k3_pds 80 TI_SCI_PD_EXCLUSIVE>; + #thermal-sensor-cells = <1>; + }; + + mpu0_thermal: mpu0_thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <500>; /* milliseconds */ + thermal-sensors = <&vtm0 0>; + + trips { + mpu0_crit: mpu0_crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; + }; +...