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author | Sascha Hauer <s.hauer@pengutronix.de> | 2017-06-06 08:07:28 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2017-06-06 08:07:28 +0200 |
commit | bb2de9a333d17bb1b048ad208002501226b83f03 (patch) | |
tree | 8ef2e876ba43af235c45cb2280885e9c67ba5548 /dts/Bindings/hwmon | |
parent | 79e6629b02fb3a296b5dc70f16dec0f8d415ccf8 (diff) | |
download | barebox-bb2de9a333d17bb1b048ad208002501226b83f03.tar.gz barebox-bb2de9a333d17bb1b048ad208002501226b83f03.tar.xz |
dts: update to v4.12-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/hwmon')
-rw-r--r-- | dts/Bindings/hwmon/ads7828.txt | 25 | ||||
-rw-r--r-- | dts/Bindings/hwmon/aspeed-pwm-tacho.txt | 68 | ||||
-rw-r--r-- | dts/Bindings/hwmon/lm87.txt | 30 |
3 files changed, 123 insertions, 0 deletions
diff --git a/dts/Bindings/hwmon/ads7828.txt b/dts/Bindings/hwmon/ads7828.txt new file mode 100644 index 0000000000..fe0cc4ad7e --- /dev/null +++ b/dts/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/dts/Bindings/hwmon/aspeed-pwm-tacho.txt b/dts/Bindings/hwmon/aspeed-pwm-tacho.txt new file mode 100644 index 0000000000..cf4460564a --- /dev/null +++ b/dts/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/dts/Bindings/hwmon/lm87.txt b/dts/Bindings/hwmon/lm87.txt new file mode 100644 index 0000000000..e1b79903f2 --- /dev/null +++ b/dts/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>; +}; |