* 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,r8a7795-thermal" (R-Car H3)
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- "renesas,r8a7796-thermal" (R-Car M3-W)
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- "renesas,r8a77965-thermal" (R-Car M3-N)
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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 (3 for H3, M3-W and M3-N)
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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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