003 File Manager
Current Path:
/usr/src/sys/contrib/device-tree/Bindings/hwmon
usr
/
src
/
sys
/
contrib
/
device-tree
/
Bindings
/
hwmon
/
📁
..
📄
ad741x.txt
(238 B)
📄
adc128d818.txt
(1.08 KB)
📄
adi,adm1177.yaml
(1.82 KB)
📄
adi,axi-fan-control.yaml
(1.37 KB)
📄
adi,ltc2947.yaml
(3.21 KB)
📄
adm1275.txt
(519 B)
📄
ads7828.txt
(578 B)
📄
adt7475.yaml
(2.26 KB)
📄
apm-xgene-hwmon.txt
(387 B)
📄
as370.txt
(241 B)
📄
aspeed-pwm-tacho.txt
(2.32 KB)
📄
baikal,bt1-pvt.yaml
(3.5 KB)
📄
cirrus,lochnagar.yaml
(1.05 KB)
📄
dps650ab.txt
(242 B)
📄
g762.txt
(1.26 KB)
📄
gpio-fan.txt
(1.18 KB)
📄
hih6130.txt
(308 B)
📄
ibm,cffps1.txt
(697 B)
📄
ibmpowernv.txt
(564 B)
📄
ina2xx.txt
(428 B)
📄
ina3221.txt
(1.67 KB)
📄
jc42.txt
(984 B)
📄
lm70.txt
(369 B)
📄
lm75.txt
(639 B)
📄
lm87.txt
(810 B)
📄
lm90.txt
(1.22 KB)
📄
ltc2978.txt
(1.49 KB)
📄
ltc2990.txt
(962 B)
📄
ltc4151.txt
(356 B)
📄
ltq-cputemp.txt
(155 B)
📄
max1619.txt
(272 B)
📄
max31785.txt
(747 B)
📄
max6650.txt
(991 B)
📄
max6697.txt
(1.94 KB)
📄
mcp3021.txt
(396 B)
📄
microchip,sparx5-temp.yaml
(830 B)
📄
npcm750-pwm-fan.txt
(2.72 KB)
📄
nsa320-mcu.txt
(649 B)
📄
ntc_thermistor.txt
(1.11 KB)
📁
pmbus
📄
pwm-fan.txt
(1.69 KB)
📄
sht15.txt
(476 B)
📄
stts751.txt
(292 B)
📄
ti,tmp513.yaml
(2.47 KB)
📄
tmp108.txt
(405 B)
📄
vexpress.txt
(577 B)
Editing: aspeed-pwm-tacho.txt
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. - #cooling-cells: should be 2. - 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 : phandle to clock provider with the clock number in the second cell - resets : phandle to reset controller with the reset number in the second cell 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. For PWM port can be configured cooling-levels to create cooling device. Cooling device could be bound to a thermal zone for the thermal control. 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. - cooling-levels: PWM duty cycle values in a range from 0 to 255 which correspond to thermal cooling states. - 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: pwmtachocontroller@1e786000 { #address-cells = <1>; #size-cells = <1>; #cooling-cells = <2>; reg = <0x1E786000 0x1000>; compatible = "aspeed,ast2500-pwm-tacho"; clocks = <&syscon ASPEED_CLK_APB>; resets = <&syscon ASPEED_RESET_PWM>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_pwm0_default &pinctrl_pwm1_default>; fan@0 { reg = <0x00>; cooling-levels = /bits/ 8 <125 151 177 203 229 255>; aspeed,fan-tach-ch = /bits/ 8 <0x00>; }; fan@1 { reg = <0x01>; aspeed,fan-tach-ch = /bits/ 8 <0x01 0x02>; }; };
Upload File
Create Folder