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Diffstat (limited to 'Documentation/devicetree/bindings/hwmon')
18 files changed, 362 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/hwmon/adc128d818.txt b/Documentation/devicetree/bindings/hwmon/adc128d818.txt new file mode 100644 index 000000000000..08bab0e94d25 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/adc128d818.txt @@ -0,0 +1,38 @@ +TI ADC128D818 ADC System Monitor With Temperature Sensor +-------------------------------------------------------- + +Operation modes: + + - Mode 0: 7 single-ended voltage readings (IN0-IN6), + 1 temperature reading (internal) + - Mode 1: 8 single-ended voltage readings (IN0-IN7), + no temperature + - Mode 2: 4 pseudo-differential voltage readings + (IN0-IN1, IN3-IN2, IN4-IN5, IN7-IN6), + 1 temperature reading (internal) + - Mode 3: 4 single-ended voltage readings (IN0-IN3), + 2 pseudo-differential voltage readings + (IN4-IN5, IN7-IN6), + 1 temperature reading (internal) + +If no operation mode is configured via device tree, the driver keeps the +currently active chip operation mode (default is mode 0). + + +Required node properties: + + - compatible: must be set to "ti,adc128d818" + - reg: I2C address of the device + +Optional node properties: + + - ti,mode: Operation mode (see above). + + +Example (operation mode 2): + + adc128d818@1d { + compatible = "ti,adc128d818"; + reg = <0x1d>; + ti,mode = <2>; + }; diff --git a/Documentation/devicetree/bindings/hwmon/ads7828.txt b/Documentation/devicetree/bindings/hwmon/ads7828.txt new file mode 100644 index 000000000000..fe0cc4ad7ea9 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/ads7828.txt @@ -0,0 +1,25 @@ +ads7828 properties + +Required properties: +- compatible: Should be one of + ti,ads7828 + ti,ads7830 +- reg: I2C address + +Optional properties: + +- ti,differential-input + Set to use the device in differential mode. +- vref-supply + The external reference on the device is set to this regulators output. If it + does not exists the internal reference will be used and output by the ads78xx + on the "external vref" pin. + + Example ADS7828 node: + + ads7828: ads@48 { + comatible = "ti,ads7828"; + reg = <0x48>; + vref-supply = <&vref>; + ti,differential-input; + }; diff --git a/Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt b/Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt new file mode 100644 index 000000000000..59b38557f1bb --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt @@ -0,0 +1,14 @@ +APM X-Gene hwmon driver + +APM X-Gene SOC sensors are accessed over the "SLIMpro" mailbox. + +Required properties : + - compatible : should be "apm,xgene-slimpro-hwmon" + - mboxes : use the label reference for the mailbox as the first parameter. + The second parameter is the channel number. + +Example : + hwmonslimpro { + compatible = "apm,xgene-slimpro-hwmon"; + mboxes = <&mailbox 7>; + }; diff --git a/Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt b/Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt new file mode 100644 index 000000000000..cf4460564adb --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt @@ -0,0 +1,68 @@ +ASPEED AST2400/AST2500 PWM and Fan Tacho controller device driver + +The ASPEED PWM controller can support upto 8 PWM outputs. The ASPEED Fan Tacho +controller can support upto 16 Fan tachometer inputs. + +There can be upto 8 fans supported. Each fan can have one PWM output and +one/two Fan tach inputs. + +Required properties for pwm-tacho node: +- #address-cells : should be 1. + +- #size-cells : should be 1. + +- reg : address and length of the register set for the device. + +- pinctrl-names : a pinctrl state named "default" must be defined. + +- pinctrl-0 : phandle referencing pin configuration of the PWM ports. + +- compatible : should be "aspeed,ast2400-pwm-tacho" for AST2400 and + "aspeed,ast2500-pwm-tacho" for AST2500. + +- clocks : a fixed clock providing input clock frequency(PWM + and Fan Tach clock) + +fan subnode format: +=================== +Under fan subnode there can upto 8 child nodes, with each child node +representing a fan. If there are 8 fans each fan can have one PWM port and +one/two Fan tach inputs. + +Required properties for each child node: +- reg : should specify PWM source port. + integer value in the range 0 to 7 with 0 indicating PWM port A and + 7 indicating PWM port H. + +- aspeed,fan-tach-ch : should specify the Fan tach input channel. + integer value in the range 0 through 15, with 0 indicating + Fan tach channel 0 and 15 indicating Fan tach channel 15. + Atleast one Fan tach input channel is required. + +Examples: + +pwm_tacho_fixed_clk: fixedclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <24000000>; +}; + +pwm_tacho: pwmtachocontroller@1e786000 { + #address-cells = <1>; + #size-cells = <1>; + reg = <0x1E786000 0x1000>; + compatible = "aspeed,ast2500-pwm-tacho"; + clocks = <&pwm_tacho_fixed_clk>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pwm0_default &pinctrl_pwm1_default>; + + fan@0 { + reg = <0x00>; + aspeed,fan-tach-ch = /bits/ 8 <0x00>; + }; + + fan@1 { + reg = <0x01>; + aspeed,fan-tach-ch = /bits/ 8 <0x01 0x02>; + }; +}; diff --git a/Documentation/devicetree/bindings/hwmon/ina2xx.txt b/Documentation/devicetree/bindings/hwmon/ina2xx.txt index 9bcd5e87830d..02af0d94e921 100644 --- a/Documentation/devicetree/bindings/hwmon/ina2xx.txt +++ b/Documentation/devicetree/bindings/hwmon/ina2xx.txt @@ -7,6 +7,7 @@ Required properties: - "ti,ina220" for ina220 - "ti,ina226" for ina226 - "ti,ina230" for ina230 + - "ti,ina231" for ina231 - reg: I2C address Optional properties: diff --git a/Documentation/devicetree/bindings/hwmon/jc42.txt b/Documentation/devicetree/bindings/hwmon/jc42.txt new file mode 100644 index 000000000000..07a250498fbb --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/jc42.txt @@ -0,0 +1,42 @@ +Properties for Jedec JC-42.4 compatible temperature sensors + +Required properties: +- compatible: May include a device-specific string consisting of the + manufacturer and the name of the chip. A list of supported + chip names follows. + Must include "jedec,jc-42.4-temp" for any Jedec JC-42.4 + compatible temperature sensor. + + Supported chip names: + adi,adt7408 + atmel,at30ts00 + atmel,at30tse004 + onnn,cat6095 + onnn,cat34ts02 + maxim,max6604 + microchip,mcp9804 + microchip,mcp9805 + microchip,mcp9808 + microchip,mcp98243 + microchip,mcp98244 + microchip,mcp9843 + nxp,se97 + nxp,se98 + st,stts2002 + st,stts2004 + st,stts3000 + st,stts424 + st,stts424e + idt,tse2002 + idt,tse2004 + idt,ts3000 + idt,ts3001 + +- reg: I2C address + +Example: + +temp-sensor@1a { + compatible = "jedec,jc-42.4-temp"; + reg = <0x1a>; +}; diff --git a/Documentation/devicetree/bindings/hwmon/lm70.txt b/Documentation/devicetree/bindings/hwmon/lm70.txt index e7fd921aa4f1..ea417a0d32af 100644 --- a/Documentation/devicetree/bindings/hwmon/lm70.txt +++ b/Documentation/devicetree/bindings/hwmon/lm70.txt @@ -4,6 +4,7 @@ Required properties: - compatible: one of "ti,lm70" "ti,tmp121" + "ti,tmp122" "ti,lm71" "ti,lm74" diff --git a/Documentation/devicetree/bindings/hwmon/lm87.txt b/Documentation/devicetree/bindings/hwmon/lm87.txt new file mode 100644 index 000000000000..e1b79903f204 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/lm87.txt @@ -0,0 +1,30 @@ +*LM87 hwmon sensor. + +Required properties: +- compatible: Should be + "ti,lm87" + +- reg: I2C address + +optional properties: +- has-temp3: This configures pins 18 and 19 to be used as a second + remote temperature sensing channel. By default the pins + are configured as voltage input pins in0 and in5. + +- has-in6: When set, pin 5 is configured to be used as voltage input + in6. Otherwise the pin is set as FAN1 input. + +- has-in7: When set, pin 6 is configured to be used as voltage input + in7. Otherwise the pin is set as FAN2 input. + +- vcc-supply: a Phandle for the regulator supplying power, can be + cofigured to measure 5.0V power supply. Default is 3.3V. + +Example: + +lm87@2e { + compatible = "ti,lm87"; + reg = <0x2e>; + has-temp3; + vcc-supply = <®_5v0>; +}; diff --git a/Documentation/devicetree/bindings/hwmon/lm90.txt b/Documentation/devicetree/bindings/hwmon/lm90.txt index e8632486b9ef..97581266e329 100644 --- a/Documentation/devicetree/bindings/hwmon/lm90.txt +++ b/Documentation/devicetree/bindings/hwmon/lm90.txt @@ -33,6 +33,11 @@ Optional properties: LM90 "-ALERT" pin output. See interrupt-controller/interrupts.txt for the format. +- #thermal-sensor-cells: should be set to 1. See thermal/thermal.txt for + details. See <include/dt-bindings/thermal/lm90.h> for the + definition of the local, remote and 2nd remote sensor index + constants. + Example LM90 node: temp-sensor { @@ -41,4 +46,5 @@ temp-sensor { vcc-supply = <&palmas_ldo6_reg>; interrupt-parent = <&gpio>; interrupts = <TEGRA_GPIO(O, 4) IRQ_TYPE_LEVEL_LOW>; + #thermal-sensor-cells = <1>; } diff --git a/Documentation/devicetree/bindings/hwmon/ltc2978.txt b/Documentation/devicetree/bindings/hwmon/ltc2978.txt index a7afbf60bb9c..bf2a47bbdc58 100644 --- a/Documentation/devicetree/bindings/hwmon/ltc2978.txt +++ b/Documentation/devicetree/bindings/hwmon/ltc2978.txt @@ -13,6 +13,7 @@ Required properties: * "lltc,ltc3886" * "lltc,ltc3887" * "lltc,ltm2987" + * "lltc,ltm4675" * "lltc,ltm4676" - reg: I2C slave address diff --git a/Documentation/devicetree/bindings/hwmon/ltc4151.txt b/Documentation/devicetree/bindings/hwmon/ltc4151.txt new file mode 100644 index 000000000000..d008a5ef525a --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/ltc4151.txt @@ -0,0 +1,18 @@ +LTC4151 High Voltage I2C Current and Voltage Monitor + +Required properties: +- compatible: Must be "lltc,ltc4151" +- reg: I2C address + +Optional properties: +- shunt-resistor-micro-ohms + Shunt resistor value in micro-Ohms + Defaults to <1000> if unset. + +Example: + +ltc4151@6e { + compatible = "lltc,ltc4151"; + reg = <0x6e>; + shunt-resistor-micro-ohms = <1500>; +}; diff --git a/Documentation/devicetree/bindings/hwmon/max6650.txt b/Documentation/devicetree/bindings/hwmon/max6650.txt new file mode 100644 index 000000000000..f6bd87d8e284 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/max6650.txt @@ -0,0 +1,28 @@ +Bindings for MAX6651 and MAX6650 I2C fan controllers + +Reference: +[1] https://datasheets.maximintegrated.com/en/ds/MAX6650-MAX6651.pdf + +Required properties: +- compatible : One of "maxim,max6650" or "maxim,max6651" +- reg : I2C address, one of 0x1b, 0x1f, 0x4b, 0x48. + +Optional properties, default is to retain the chip's current setting: +- maxim,fan-microvolt : The supply voltage of the fan, either 5000000 uV or + 12000000 uV. +- maxim,fan-prescale : Pre-scaling value, as per datasheet [1]. Lower values + allow more fine-grained control of slower fans. + Valid: 1, 2, 4, 8, 16. +- maxim,fan-target-rpm: Initial requested fan rotation speed. If specified, the + driver selects closed-loop mode and the requested speed. + This ensures the fan is already running before userspace + takes over. + +Example: + fan-max6650: max6650@1b { + reg = <0x1b>; + compatible = "maxim,max6650"; + maxim,fan-microvolt = <12000000>; + maxim,fan-prescale = <4>; + maxim,fan-target-rpm = <1200>; + }; diff --git a/Documentation/devicetree/bindings/hwmon/mcp3021.txt b/Documentation/devicetree/bindings/hwmon/mcp3021.txt new file mode 100644 index 000000000000..294318ba6914 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/mcp3021.txt @@ -0,0 +1,21 @@ +mcp3021 properties + +Required properties: +- compatible: Must be one of the following: + - "microchip,mcp3021" for mcp3021 + - "microchip,mcp3221" for mcp3221 +- reg: I2C address + +Optional properties: + +- reference-voltage-microvolt + Reference voltage in microvolt (uV) + +Example: + +mcp3021@4d { + compatible = "microchip,mcp3021"; + reg = <0x4d>; + + reference-voltage-microvolt = <4500000>; /* 4.5 V */ +}; diff --git a/Documentation/devicetree/bindings/hwmon/nsa320-mcu.txt b/Documentation/devicetree/bindings/hwmon/nsa320-mcu.txt new file mode 100644 index 000000000000..0863e067c85b --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/nsa320-mcu.txt @@ -0,0 +1,20 @@ +Bindings for the fan / temperature monitor microcontroller used on +the Zyxel NSA 320 and several subsequent models. + +Required properties: +- compatible : "zyxel,nsa320-mcu" +- data-gpios : The GPIO pin connected to the data line on the MCU +- clk-gpios : The GPIO pin connected to the clock line on the MCU +- act-gpios : The GPIO pin connected to the active line on the MCU + +Example: + + hwmon { + compatible = "zyxel,nsa320-mcu"; + pinctrl-0 = <&pmx_mcu_data &pmx_mcu_clk &pmx_mcu_act>; + pinctrl-names = "default"; + + data-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>; + clk-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>; + act-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>; + }; diff --git a/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt index a04a80f9cc70..c3b9c4cfe8df 100644 --- a/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt +++ b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt @@ -10,6 +10,7 @@ Requires node properties: "murata,ncp03wb473" "murata,ncp15wl333" "murata,ncp03wf104" + "murata,ncp15xh103" /* Usage of vendor name "ntc" is deprecated */ <DEPRECATED> "ntc,ncp15wb473" diff --git a/Documentation/devicetree/bindings/hwmon/sht15.txt b/Documentation/devicetree/bindings/hwmon/sht15.txt new file mode 100644 index 000000000000..6a80277cc426 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/sht15.txt @@ -0,0 +1,19 @@ +Sensirion SHT15 Humidity and Temperature Sensor + +Required properties: + + - "compatible": must be "sensirion,sht15". + - "data-gpios": GPIO connected to the data line. + - "clk-gpios": GPIO connected to the clock line. + - "vcc-supply": regulator that drives the VCC pin. + +Example: + + sensor { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_sensor>; + compatible = "sensirion,sht15"; + clk-gpios = <&gpio4 12 0>; + data-gpios = <&gpio4 13 0>; + vcc-supply = <®_sht15>; + }; diff --git a/Documentation/devicetree/bindings/hwmon/stts751.txt b/Documentation/devicetree/bindings/hwmon/stts751.txt new file mode 100644 index 000000000000..3ee1dc30e72f --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/stts751.txt @@ -0,0 +1,15 @@ +* STTS751 thermometer. + +Required node properties: +- compatible: "stts751" +- reg: I2C bus address of the device + +Optional properties: +- smbus-timeout-disable: when set, the smbus timeout function will be disabled + +Example stts751 node: + +temp-sensor { + compatible = "stts751"; + reg = <0x48>; +} diff --git a/Documentation/devicetree/bindings/hwmon/tmp108.txt b/Documentation/devicetree/bindings/hwmon/tmp108.txt new file mode 100644 index 000000000000..8c4b10df86d9 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/tmp108.txt @@ -0,0 +1,14 @@ +TMP108 temperature sensor +------------------------- + +This device supports I2C only. + +Requires node properties: +- compatible : "ti,tmp108" +- reg : the I2C address of the device. This is 0x48, 0x49, 0x4a, or 0x4b. + +Example: + tmp108@48 { + compatible = "ti,tmp108"; + reg = <0x48>; + }; |