Documentation/devicetree/bindings/leds/ams,as3645a.txt

   1 Analog devices AS3645A device tree bindings
   2
   3 The AS3645A flash LED controller can drive two LEDs, one high current
   4 flash LED and one indicator LED. The high current flash LED can be
   5 used in torch mode as well.
   6
   7 Ranges below noted as [a, b] are closed ranges between a and b, i.e. a
   8 and b are included in the range.
   9
  10 Please also see common.txt in the same directory.
  11
  12
  13 Required properties
  14 ===================
  15
  16 compatible      : Must be "ams,as3645a".
  17 reg             : The I2C address of the device. Typically 0x30.
  18 #address-cells  : 1
  19 #size-cells     : 0
  20
  21
  22 Required properties of the flash child node (0)
  23 ===============================================
  24
  25 reg: 0
  26 flash-timeout-us: Flash timeout in microseconds. The value must be in
  27                   the range [100000, 850000] and divisible by 50000.
  28 flash-max-microamp: Maximum flash current in microamperes. Has to be
  29                     in the range between [200000, 500000] and
  30                     divisible by 20000.
  31 led-max-microamp: Maximum torch (assist) current in microamperes. The
  32                   value must be in the range between [20000, 160000] and
  33                   divisible by 20000.
  34 ams,input-max-microamp: Maximum flash controller input current. The
  35                         value must be in the range [1250000, 2000000]
  36                         and divisible by 50000.
  37
  38
  39 Optional properties of the flash child node
  40 ===========================================
  41
  42 label           : The label of the flash LED.
  43
  44
  45 Required properties of the indicator child node (1)
  46 ===================================================
  47
  48 reg: 1
  49 led-max-microamp: Maximum indicator current. The allowed values are
  50                   2500, 5000, 7500 and 10000.
  51
  52 Optional properties of the indicator child node
  53 ===============================================
  54
  55 label           : The label of the indicator LED.
  56
  57
  58 Example
  59 =======
  60
  61         as3645a@30 {
  62                 #address-cells: 1
  63                 #size-cells: 0
  64                 reg = <0x30>;
  65                 compatible = "ams,as3645a";
  66                 flash@0 {
  67                         reg = <0x0>;
  68                         flash-timeout-us = <150000>;
  69                         flash-max-microamp = <320000>;
  70                         led-max-microamp = <60000>;
  71                         ams,input-max-microamp = <1750000>;
  72                         label = "as3645a:flash";
  73                 };
  74                 indicator@1 {
  75                         reg = <0x1>;
  76                         led-max-microamp = <10000>;
  77                         label = "as3645a:indicator";
  78                 };
  79         };