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diff --git a/Documentation/devicetree/bindings/leds/ams,as3645a.txt b/Documentation/devicetree/bindings/leds/ams,as3645a.txt new file mode 100644 index 000000000..4af2987b2 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/ams,as3645a.txt @@ -0,0 +1,85 @@ +Analog devices AS3645A device tree bindings + +The AS3645A flash LED controller can drive two LEDs, one high current +flash LED and one indicator LED. The high current flash LED can be +used in torch mode as well. + +Ranges below noted as [a, b] are closed ranges between a and b, i.e. a +and b are included in the range. + +Please also see common.txt in the same directory. + + +Required properties +=================== + +compatible : Must be "ams,as3645a". +reg : The I2C address of the device. Typically 0x30. +#address-cells : 1 +#size-cells : 0 + + +Required properties of the flash child node (0) +=============================================== + +reg: 0 +flash-timeout-us: Flash timeout in microseconds. The value must be in + the range [100000, 850000] and divisible by 50000. +flash-max-microamp: Maximum flash current in microamperes. Has to be + in the range between [200000, 500000] and + divisible by 20000. +led-max-microamp: Maximum torch (assist) current in microamperes. The + value must be in the range between [20000, 160000] and + divisible by 20000. +ams,input-max-microamp: Maximum flash controller input current. The + value must be in the range [1250000, 2000000] + and divisible by 50000. + + +Optional properties of the flash child node +=========================================== + +function : See Documentation/devicetree/bindings/leds/common.txt. +color : See Documentation/devicetree/bindings/leds/common.txt. +label : See Documentation/devicetree/bindings/leds/common.txt (deprecated). + + +Required properties of the indicator child node (1) +=================================================== + +reg: 1 +led-max-microamp: Maximum indicator current. The allowed values are + 2500, 5000, 7500 and 10000. + +Optional properties of the indicator child node +=============================================== + +function : See Documentation/devicetree/bindings/leds/common.txt. +color : See Documentation/devicetree/bindings/leds/common.txt. +label : See Documentation/devicetree/bindings/leds/common.txt (deprecated). + + +Example +======= + +#include <dt-bindings/leds/common.h> + + as3645a@30 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0x30>; + compatible = "ams,as3645a"; + led@0 { + reg = <0x0>; + flash-timeout-us = <150000>; + flash-max-microamp = <320000>; + led-max-microamp = <60000>; + ams,input-max-microamp = <1750000>; + function = LED_FUNCTION_FLASH; + }; + led@1 { + reg = <0x1>; + led-max-microamp = <10000>; + function = LED_FUNCTION_INDICATOR; + }; + }; |