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dt-bindings: thermal: convert rockchip-thermal to json-schema
Convert Rockchip Thermal sensor dt-bindings to YAML. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20210506175514.168365-3-ezequiel@collabora.com
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Ezequiel Garcia
Daniel Lezcano
parent
5e5c9f9a75
commit
7d70aa141e
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* Temperature Sensor ADC (TSADC) on rockchip SoCs
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Required properties:
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- compatible : should be "rockchip,<name>-tsadc"
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"rockchip,px30-tsadc": found on PX30 SoCs
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"rockchip,rv1108-tsadc": found on RV1108 SoCs
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"rockchip,rk3228-tsadc": found on RK3228 SoCs
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"rockchip,rk3288-tsadc": found on RK3288 SoCs
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"rockchip,rk3328-tsadc": found on RK3328 SoCs
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"rockchip,rk3368-tsadc": found on RK3368 SoCs
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"rockchip,rk3399-tsadc": found on RK3399 SoCs
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- reg : physical base address of the controller and length of memory mapped
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region.
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- interrupts : The interrupt number to the cpu. The interrupt specifier format
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depends on the interrupt controller.
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- clocks : Must contain an entry for each entry in clock-names.
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- clock-names : Shall be "tsadc" for the converter-clock, and "apb_pclk" for
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the peripheral clock.
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- resets : Must contain an entry for each entry in reset-names.
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See ../reset/reset.txt for details.
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- reset-names : Must include the name "tsadc-apb".
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- pinctrl-names : The pin control state names;
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- pinctrl-0 : The "init" pinctrl state, it will be set before device probe.
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- pinctrl-1 : The "default" pinctrl state, it will be set after reset the
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TSADC controller.
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- pinctrl-2 : The "sleep" pinctrl state, it will be in for suspend.
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- #thermal-sensor-cells : Should be 1. See Documentation/devicetree/bindings/thermal/thermal-sensor.yaml for a description.
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Optional properties:
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- rockchip,hw-tshut-temp : The hardware-controlled shutdown temperature value.
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- rockchip,hw-tshut-mode : The hardware-controlled shutdown mode 0:CRU 1:GPIO.
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- rockchip,hw-tshut-polarity : The hardware-controlled active polarity 0:LOW
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1:HIGH.
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- rockchip,grf : The phandle of the syscon node for the general register file.
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Exiample:
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tsadc: tsadc@ff280000 {
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compatible = "rockchip,rk3288-tsadc";
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reg = <0xff280000 0x100>;
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interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>;
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clock-names = "tsadc", "apb_pclk";
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resets = <&cru SRST_TSADC>;
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reset-names = "tsadc-apb";
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pinctrl-names = "init", "default", "sleep";
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pinctrl-0 = <&otp_gpio>;
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pinctrl-1 = <&otp_out>;
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pinctrl-2 = <&otp_gpio>;
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#thermal-sensor-cells = <1>;
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rockchip,hw-tshut-temp = <95000>;
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rockchip,hw-tshut-mode = <0>;
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rockchip,hw-tshut-polarity = <0>;
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};
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Example: referring to thermal sensors:
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thermal-zones {
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cpu_thermal: cpu_thermal {
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polling-delay-passive = <1000>; /* milliseconds */
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polling-delay = <5000>; /* milliseconds */
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/* sensor ID */
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thermal-sensors = <&tsadc 1>;
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trips {
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cpu_alert0: cpu_alert {
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temperature = <70000>; /* millicelsius */
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hysteresis = <2000>; /* millicelsius */
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type = "passive";
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};
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cpu_crit: cpu_crit {
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temperature = <90000>; /* 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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cooling-maps {
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map0 {
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trip = <&cpu_alert0>;
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cooling-device =
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<&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
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};
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};
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};
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};
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@ -0,0 +1,95 @@
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# SPDX-License-Identifier: GPL-2.0-only
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/thermal/rockchip-thermal.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Temperature Sensor ADC (TSADC) on Rockchip SoCs
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maintainers:
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- Heiko Stuebner <heiko@sntech.de>
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properties:
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compatible:
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enum:
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- rockchip,px30-tsadc # PX30 SoCs
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- rockchip,rv1108-tsadc # RV1108 SoCs
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- rockchip,rk3228-tsadc # RK3228 SoCs
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- rockchip,rk3288-tsadc # RK3288 SoCs
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- rockchip,rk3328-tsadc # RK3328 SoCs
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- rockchip,rk3368-tsadc # RK3368 SoCs
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- rockchip,rk3399-tsadc # RK3399 SoCs
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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clocks:
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minItems: 2
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maxItems: 2
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clock-names:
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items:
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- const: tsadc
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- const: apb_pclk
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resets:
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maxItems: 1
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reset-names:
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items:
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- const: tsadc-apb
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"#thermal-sensor-cells":
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const: 1
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rockchip,grf:
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description: The phandle of the syscon node for the general register file.
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$ref: /schemas/types.yaml#/definitions/phandle
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rockchip,hw-tshut-temp:
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description: The hardware-controlled shutdown temperature value.
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$ref: /schemas/types.yaml#/definitions/uint32
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rockchip,hw-tshut-mode:
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description: The hardware-controlled shutdown mode 0:CRU 1:GPIO.
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1]
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rockchip,hw-tshut-polarity:
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description: The hardware-controlled active polarity 0:LOW 1:HIGH.
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 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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- clock-names
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- resets
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- reset-names
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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/interrupt-controller/arm-gic.h>
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#include <dt-bindings/clock/rk3288-cru.h>
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tsadc: tsadc@ff280000 {
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compatible = "rockchip,rk3288-tsadc";
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reg = <0xff280000 0x100>;
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interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>;
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clock-names = "tsadc", "apb_pclk";
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resets = <&cru SRST_TSADC>;
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reset-names = "tsadc-apb";
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#thermal-sensor-cells = <1>;
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rockchip,hw-tshut-temp = <95000>;
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rockchip,hw-tshut-mode = <0>;
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rockchip,hw-tshut-polarity = <0>;
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};
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