86 lines
2.4 KiB
Plaintext
86 lines
2.4 KiB
Plaintext
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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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