dt-bindings: thermal: rcar-gen3-thermal: Convert bindings to json-schema
Convert Renesas R-Car Gen3 Thermal bindings documentation to json-schema. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rob Herring <robh@kernel.org>
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Niklas Söderlund
Rob Herring
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* DT bindings for Renesas R-Car Gen3 Thermal Sensor driver
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On R-Car Gen3 SoCs, the thermal sensor controllers (TSC) control the thermal
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sensors (THS) which are the analog circuits for measuring temperature (Tj)
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inside the LSI.
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Required properties:
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- compatible : "renesas,<soctype>-thermal",
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Examples with soctypes are:
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- "renesas,r8a774a1-thermal" (RZ/G2M)
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- "renesas,r8a774b1-thermal" (RZ/G2N)
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- "renesas,r8a7795-thermal" (R-Car H3)
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- "renesas,r8a7796-thermal" (R-Car M3-W)
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- "renesas,r8a77961-thermal" (R-Car M3-W+)
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- "renesas,r8a77965-thermal" (R-Car M3-N)
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- "renesas,r8a77980-thermal" (R-Car V3H)
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- reg : Address ranges of the thermal registers. Each sensor
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needs one address range. Sorting must be done in
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increasing order according to datasheet, i.e.
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TSC1, TSC2, ...
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- clocks : Must contain a reference to the functional clock.
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- #thermal-sensor-cells : must be <1>.
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Optional properties:
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- interrupts : interrupts routed to the TSC (must be 3).
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- power-domain : Must contain a reference to the power domain. This
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property is mandatory if the thermal sensor instance
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is part of a controllable power domain.
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Example:
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tsc: thermal@e6198000 {
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compatible = "renesas,r8a7795-thermal";
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reg = <0 0xe6198000 0 0x100>,
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<0 0xe61a0000 0 0x100>,
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<0 0xe61a8000 0 0x100>;
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interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&cpg CPG_MOD 522>;
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power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
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#thermal-sensor-cells = <1>;
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};
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thermal-zones {
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sensor_thermal1: sensor-thermal1 {
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polling-delay-passive = <250>;
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polling-delay = <1000>;
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thermal-sensors = <&tsc 0>;
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trips {
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sensor1_crit: sensor1-crit {
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temperature = <90000>;
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hysteresis = <2000>;
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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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@ -0,0 +1,99 @@
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# SPDX-License-Identifier: GPL-2.0-only
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# Copyright (C) 2020 Renesas Electronics Corp.
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/thermal/rcar-gen3-thermal.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Renesas R-Car Gen3 Thermal Sensor
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description:
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On R-Car Gen3 SoCs, the thermal sensor controllers (TSC) control the thermal
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sensors (THS) which are the analog circuits for measuring temperature (Tj)
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inside the LSI.
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maintainers:
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- Niklas Söderlund <niklas.soderlund@ragnatech.se>
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properties:
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compatible:
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enum:
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- renesas,r8a774a1-thermal # RZ/G2M
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- renesas,r8a774b1-thermal # RZ/G2N
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- renesas,r8a7795-thermal # R-Car H3
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- renesas,r8a7796-thermal # R-Car M3-W
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- renesas,r8a77961-thermal # R-Car M3-W+
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- renesas,r8a77965-thermal # R-Car M3-N
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- renesas,r8a77980-thermal # R-Car V3H
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reg:
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minItems: 2
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maxItems: 3
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items:
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- description: TSC1 registers
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- description: TSC2 registers
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- description: TSC3 registers
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interrupts:
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items:
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- description: TEMP1 interrupt
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- description: TEMP2 interrupt
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- description: TEMP3 interrupt
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clocks:
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maxItems: 1
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power-domains:
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maxItems: 1
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resets:
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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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- interrupts
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- clocks
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- power-domains
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- resets
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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/clock/r8a7795-cpg-mssr.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/power/r8a7795-sysc.h>
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tsc: thermal@e6198000 {
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compatible = "renesas,r8a7795-thermal";
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reg = <0xe6198000 0x100>,
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<0xe61a0000 0x100>,
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<0xe61a8000 0x100>;
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interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&cpg CPG_MOD 522>;
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power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
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resets = <&cpg 522>;
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#thermal-sensor-cells = <1>;
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};
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thermal-zones {
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sensor_thermal: sensor-thermal {
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polling-delay-passive = <250>;
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polling-delay = <1000>;
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thermal-sensors = <&tsc 0>;
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trips {
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sensor1_crit: sensor1-crit {
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temperature = <90000>;
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hysteresis = <2000>;
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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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