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75f9f7279e
Use integers (reg property) to tell the number of the LED to the driver instead of the node name. While both of these approaches are currently used by the LED bindings, using integers will require less driver changes for ACPI support. Additionally, it will make possible LED naming using chip and LED node names, effectively making the label property most useful for human-readable names only. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
80 lines
2.1 KiB
Plaintext
80 lines
2.1 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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#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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label : The label of the flash LED.
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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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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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#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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flash@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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label = "as3645a:flash";
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};
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indicator@1 {
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reg = <0x1>;
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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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