031c2952d1
Add VTM bindings documentation. In the Voltage Thermal Management Module(VTM), K3 J72XX 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> Link: https://lore.kernel.org/r/20220517172920.10857-2-j-keerthy@ti.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
64 lines
1.4 KiB
YAML
64 lines
1.4 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/thermal/ti,j72xx-thermal.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Texas Instruments J72XX VTM (DTS) binding
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maintainers:
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- Keerthy <j-keerthy@ti.com>
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properties:
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compatible:
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enum:
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- ti,j721e-vtm
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- ti,j7200-vtm
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reg:
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items:
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- description: VTM cfg1 register space
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- description: VTM cfg2 register space
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- description: VTM efuse register space
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power-domains:
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maxItems: 1
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"#thermal-sensor-cells":
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const: 1
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required:
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- compatible
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- reg
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- power-domains
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- "#thermal-sensor-cells"
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/soc/ti,sci_pm_domain.h>
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wkup_vtm0: thermal-sensor@42040000 {
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compatible = "ti,j721e-vtm";
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reg = <0x42040000 0x350>,
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<0x42050000 0x350>,
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<0x43000300 0x10>;
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power-domains = <&k3_pds 154 TI_SCI_PD_EXCLUSIVE>;
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#thermal-sensor-cells = <1>;
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};
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mpu_thermal: mpu-thermal {
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polling-delay-passive = <250>; /* milliseconds */
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polling-delay = <500>; /* milliseconds */
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thermal-sensors = <&wkup_vtm0 0>;
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trips {
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mpu_crit: mpu-crit {
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temperature = <125000>; /* milliCelsius */
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hysteresis = <2000>; /* milliCelsius */
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type = "critical";
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};
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};
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};
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...
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