| # SPDX-License-Identifier: (GPL-2.0 OR MIT) |
| # Copyright 2019 Linaro Ltd. |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/thermal/qcom-tsens.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: QCOM SoC Temperature Sensor (TSENS) |
| |
| maintainers: |
| - Amit Kucheria <amit.kucheria@linaro.org> |
| |
| description: | |
| QCOM SoCs have TSENS IP to allow temperature measurement. There are currently |
| three distinct major versions of the IP that is supported by a single driver. |
| The IP versions are named v0.1, v1 and v2 in the driver, where v0.1 captures |
| everything before v1 when there was no versioning information. |
| |
| properties: |
| compatible: |
| oneOf: |
| - description: v0.1 of TSENS |
| items: |
| - enum: |
| - qcom,msm8916-tsens |
| - qcom,msm8974-tsens |
| - const: qcom,tsens-v0_1 |
| |
| - description: v1 of TSENS |
| items: |
| - enum: |
| - qcom,msm8976-tsens |
| - qcom,qcs404-tsens |
| - const: qcom,tsens-v1 |
| |
| - description: v2 of TSENS |
| items: |
| - enum: |
| - qcom,msm8996-tsens |
| - qcom,msm8998-tsens |
| - qcom,sc7180-tsens |
| - qcom,sdm845-tsens |
| - const: qcom,tsens-v2 |
| |
| reg: |
| items: |
| - description: TM registers |
| - description: SROT registers |
| |
| interrupts: |
| minItems: 1 |
| items: |
| - description: Combined interrupt if upper or lower threshold crossed |
| - description: Interrupt if critical threshold crossed |
| |
| interrupt-names: |
| minItems: 1 |
| items: |
| - const: uplow |
| - const: critical |
| |
| nvmem-cells: |
| minItems: 1 |
| maxItems: 2 |
| description: |
| Reference to an nvmem node for the calibration data |
| |
| nvmem-cell-names: |
| minItems: 1 |
| maxItems: 2 |
| items: |
| - const: calib |
| - const: calib_sel |
| |
| "#qcom,sensors": |
| allOf: |
| - $ref: /schemas/types.yaml#/definitions/uint32 |
| - minimum: 1 |
| - maximum: 16 |
| description: |
| Number of sensors enabled on this platform |
| |
| "#thermal-sensor-cells": |
| const: 1 |
| description: |
| Number of cells required to uniquely identify the thermal sensors. Since |
| we have multiple sensors this is set to 1 |
| |
| allOf: |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,msm8916-tsens |
| - qcom,msm8974-tsens |
| - qcom,msm8976-tsens |
| - qcom,qcs404-tsens |
| - qcom,tsens-v0_1 |
| - qcom,tsens-v1 |
| then: |
| properties: |
| interrupts: |
| maxItems: 1 |
| interrupt-names: |
| maxItems: 1 |
| |
| else: |
| properties: |
| interrupts: |
| minItems: 2 |
| interrupt-names: |
| minItems: 2 |
| |
| required: |
| - compatible |
| - reg |
| - "#qcom,sensors" |
| - interrupts |
| - interrupt-names |
| - "#thermal-sensor-cells" |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| // Example 1 (legacy: for pre v1 IP): |
| tsens1: thermal-sensor@900000 { |
| compatible = "qcom,msm8916-tsens", "qcom,tsens-v0_1"; |
| reg = <0x4a9000 0x1000>, /* TM */ |
| <0x4a8000 0x1000>; /* SROT */ |
| |
| nvmem-cells = <&tsens_caldata>, <&tsens_calsel>; |
| nvmem-cell-names = "calib", "calib_sel"; |
| |
| interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>; |
| interrupt-names = "uplow"; |
| |
| #qcom,sensors = <5>; |
| #thermal-sensor-cells = <1>; |
| }; |
| |
| - | |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| // Example 2 (for any platform containing v1 of the TSENS IP): |
| tsens2: thermal-sensor@4a9000 { |
| compatible = "qcom,qcs404-tsens", "qcom,tsens-v1"; |
| reg = <0x004a9000 0x1000>, /* TM */ |
| <0x004a8000 0x1000>; /* SROT */ |
| |
| nvmem-cells = <&tsens_caldata>; |
| nvmem-cell-names = "calib"; |
| |
| interrupts = <GIC_SPI 506 IRQ_TYPE_LEVEL_HIGH>; |
| interrupt-names = "uplow"; |
| |
| #qcom,sensors = <10>; |
| #thermal-sensor-cells = <1>; |
| }; |
| |
| - | |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| // Example 3 (for any platform containing v2 of the TSENS IP): |
| tsens3: thermal-sensor@c263000 { |
| compatible = "qcom,sdm845-tsens", "qcom,tsens-v2"; |
| reg = <0xc263000 0x1ff>, |
| <0xc222000 0x1ff>; |
| |
| interrupts = <GIC_SPI 506 IRQ_TYPE_LEVEL_HIGH>, |
| <GIC_SPI 508 IRQ_TYPE_LEVEL_HIGH>; |
| interrupt-names = "uplow", "critical"; |
| |
| #qcom,sensors = <13>; |
| #thermal-sensor-cells = <1>; |
| }; |
| ... |