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Sakari Ailus
535a218d26
Document DT bindings for Analog Devices as3645a flash LED controller which also supports an indicator LED. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
72 lines
1.9 KiB
Plaintext
72 lines
1.9 KiB
Plaintext
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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Required properties of the "flash" child node
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=============================================
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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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label : The label of the flash LED.
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Required properties of the "indicator" child node
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=================================================
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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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label : The label of the indicator LED.
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Example
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=======
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as3645a@30 {
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reg = <0x30>;
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compatible = "ams,as3645a";
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flash {
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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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label = "as3645a:flash";
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};
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indicator {
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led-max-microamp = <10000>;
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label = "as3645a:indicator";
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};
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};
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