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