From: Matthias Brugger <matthias.bgg@xxxxxxxxx> Convert the older binding to yaml syntax. The thermal IP has several sensors, to reflect that thermal-sensors-cells is set to '1'. Apart optional regulator for bank supply wasn't part of the old binding description, this patch adds them. Signed-off-by: Matthias Brugger <matthias.bgg@xxxxxxxxx> --- Changes in v2: - drop auxadc and apmixedsys nodes - maxItems for clocks - drop obvious description of reset - mention optional regulators in commit message - mention thermal-sensors-cells change in commit message .../bindings/thermal/mediatek,thermal.yaml | 152 ++++++++++++++++++ .../bindings/thermal/mediatek-thermal.txt | 52 ------ 2 files changed, 152 insertions(+), 52 deletions(-) create mode 100644 Documentation/devicetree/bindings/thermal/mediatek,thermal.yaml delete mode 100644 Documentation/devicetree/bindings/thermal/mediatek-thermal.txt diff --git a/Documentation/devicetree/bindings/thermal/mediatek,thermal.yaml b/Documentation/devicetree/bindings/thermal/mediatek,thermal.yaml new file mode 100644 index 000000000000..bbc9c2935da0 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/mediatek,thermal.yaml @@ -0,0 +1,152 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/thermal/mediatek,thermal.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek Thermal Sensor + +maintainers: + - Matthias Brugger <matthias.bgg@xxxxxxxxx> + +description: | + The MediaTek thermal controller measures the on-SoC temperatures. + This device does not have its own ADC, instead it directly controls + the AUXADC via AHB bus accesses. For this reason this device needs + phandles to the AUXADC. Also it controls a mux in the apmixedsys + register space via AHB bus accesses, so a phandle to the APMIXEDSYS + is also needed. + +properties: + compatible: + oneOf: + - enum: + - mediatek,mt2701-thermal + - mediatek,mt2712-thermal + - mediatek,mt7622-thermal + - mediatek,mt7986-thermal + - mediatek,mt8173-thermal + - mediatek,mt8183-thermal + - mediatek,mt8365-thermal + - items: + - const: mediatek,mt7981-thermal + - const: mediatek,mt7986-thermal + - items: + - const: mediatek,mt8516-thermal + - const: mediatek,mt2701-thermal + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 2 + + clock-names: + items: + - const: therm + - const: auxadc + + resets: + maxItems: 1 + + reset-names: + items: + - const: therm + + nvmem-cells: + items: + - description: Calibration eFuse data. If unspecified default values are used. + + nvmem-cell-names: + items: + - const: calibration-data + + mediatek,auxadc: + $ref: /schemas/types.yaml#/definitions/phandle + description: + A phandle to the AUXADC which the thermal controller uses. + + mediatek,apmixedsys: + $ref: /schemas/types.yaml#/definitions/phandle + description: + A phandle to the APMIXEDSYS controller. + + "#thermal-sensor-cells": + const: 1 + + bank0-supply: + description: Regulator supplying voltage to the first bank + + bank1-supply: + description: Regulator supplying voltage to the second bank + +required: + - compatible + - reg + - interrupts + - clocks + - mediatek,auxadc + - mediatek,apmixedsys + - "#thermal-sensor-cells" + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/mt8173-clk.h> + #include <dt-bindings/reset/mt8173-resets.h> + + soc { + #address-cells = <2>; + #size-cells = <2>; + + thermal: thermal@1100b000 { + #thermal-sensor-cells = <1>; + compatible = "mediatek,mt8173-thermal"; + reg = <0 0x1100b000 0 0x1000>; + interrupts = <0 70 IRQ_TYPE_LEVEL_LOW>; + clocks = <&pericfg CLK_PERI_THERM>, <&pericfg CLK_PERI_AUXADC>; + clock-names = "therm", "auxadc"; + resets = <&pericfg MT8173_PERI_THERM_SW_RST>; + reset-names = "therm"; + mediatek,auxadc = <&auxadc>; + mediatek,apmixedsys = <&apmixedsys>; + nvmem-cells = <&thermal_calibration_data>; + nvmem-cell-names = "calibration-data"; + }; + + thermal-zones { + cpu_thermal: cpu-thermal { + polling-delay-passive = <1000>; + polling-delay = <1000>; + + thermal-sensors = <&thermal 0>; + sustainable-power = <1500>; + + trips { + threshold: trip-point0 { + temperature = <68000>; + hysteresis = <2000>; + type = "passive"; + }; + + target: trip-point1 { + temperature = <85000>; + hysteresis = <2000>; + type = "passive"; + }; + + cpu_crit: cpu-crit0 { + temperature = <115000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + }; + }; + }; +... diff --git a/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt b/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt deleted file mode 100644 index ac39c7156fde..000000000000 --- a/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt +++ /dev/null @@ -1,52 +0,0 @@ -* Mediatek Thermal - -This describes the device tree binding for the Mediatek thermal controller -which measures the on-SoC temperatures. This device does not have its own ADC, -instead it directly controls the AUXADC via AHB bus accesses. For this reason -this device needs phandles to the AUXADC. Also it controls a mux in the -apmixedsys register space via AHB bus accesses, so a phandle to the APMIXEDSYS -is also needed. - -Required properties: -- compatible: - - "mediatek,mt8173-thermal" : For MT8173 family of SoCs - - "mediatek,mt2701-thermal" : For MT2701 family of SoCs - - "mediatek,mt2712-thermal" : For MT2712 family of SoCs - - "mediatek,mt7622-thermal" : For MT7622 SoC - - "mediatek,mt7981-thermal", "mediatek,mt7986-thermal" : For MT7981 SoC - - "mediatek,mt7986-thermal" : For MT7986 SoC - - "mediatek,mt8183-thermal" : For MT8183 family of SoCs - - "mediatek,mt8365-thermal" : For MT8365 family of SoCs - - "mediatek,mt8516-thermal", "mediatek,mt2701-thermal : For MT8516 family of SoCs -- reg: Address range of the thermal controller -- interrupts: IRQ for the thermal controller -- clocks, clock-names: Clocks needed for the thermal controller. required - clocks are: - "therm": Main clock needed for register access - "auxadc": The AUXADC clock -- mediatek,auxadc: A phandle to the AUXADC which the thermal controller uses -- mediatek,apmixedsys: A phandle to the APMIXEDSYS controller. -- #thermal-sensor-cells : Should be 0. See Documentation/devicetree/bindings/thermal/thermal-sensor.yaml for a description. - -Optional properties: -- resets: Reference to the reset controller controlling the thermal controller. -- nvmem-cells: A phandle to the calibration data provided by a nvmem device. If - unspecified default values shall be used. -- nvmem-cell-names: Should be "calibration-data" - -Example: - - thermal: thermal@1100b000 { - #thermal-sensor-cells = <1>; - compatible = "mediatek,mt8173-thermal"; - reg = <0 0x1100b000 0 0x1000>; - interrupts = <0 70 IRQ_TYPE_LEVEL_LOW>; - clocks = <&pericfg CLK_PERI_THERM>, <&pericfg CLK_PERI_AUXADC>; - clock-names = "therm", "auxadc"; - resets = <&pericfg MT8173_PERI_THERM_SW_RST>; - reset-names = "therm"; - mediatek,auxadc = <&auxadc>; - mediatek,apmixedsys = <&apmixedsys>; - nvmem-cells = <&thermal_calibration_data>; - nvmem-cell-names = "calibration-data"; - }; -- 2.40.1
