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Date: Wed, 18 Mar 2020 13:58:41 +0530 From: Keerthy <j-keerthy@...com> To: <rui.zhang@...el.com>, <robh+dt@...nel.org>, <daniel.lezcano@...aro.org> CC: <amit.kucheria@...durent.com>, <t-kristo@...com>, <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-pm@...r.kernel.org>, <mark.rutland@....com> Subject: Re: [PATCH v4 1/4] dt-bindings: thermal: k3: Add VTM bindings documentation On 18/03/20 1:57 pm, Keerthy 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. Numbering is bad. I will resend in a bit. > > Signed-off-by: Keerthy <j-keerthy@...com> > --- > .../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@...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@...50000 { > + 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"; > + }; > + }; > + }; > +... >
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