| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | function : See Documentation/devicetree/bindings/leds/common.txt. |
| 43 | color : See Documentation/devicetree/bindings/leds/common.txt. |
| 44 | label : See Documentation/devicetree/bindings/leds/common.txt (deprecated). |
| 45 | |
| 46 | |
| 47 | Required properties of the indicator child node (1) |
| 48 | =================================================== |
| 49 | |
| 50 | reg: 1 |
| 51 | led-max-microamp: Maximum indicator current. The allowed values are |
| 52 | 2500, 5000, 7500 and 10000. |
| 53 | |
| 54 | Optional properties of the indicator child node |
| 55 | =============================================== |
| 56 | |
| 57 | function : See Documentation/devicetree/bindings/leds/common.txt. |
| 58 | color : See Documentation/devicetree/bindings/leds/common.txt. |
| 59 | label : See Documentation/devicetree/bindings/leds/common.txt (deprecated). |
| 60 | |
| 61 | |
| 62 | Example |
| 63 | ======= |
| 64 | |
| 65 | #include <dt-bindings/leds/common.h> |
| 66 | |
| 67 | as3645a@30 { |
| 68 | #address-cells = <1>; |
| 69 | #size-cells = <0>; |
| 70 | reg = <0x30>; |
| 71 | compatible = "ams,as3645a"; |
| 72 | led@0 { |
| 73 | reg = <0x0>; |
| 74 | flash-timeout-us = <150000>; |
| 75 | flash-max-microamp = <320000>; |
| 76 | led-max-microamp = <60000>; |
| 77 | ams,input-max-microamp = <1750000>; |
| 78 | function = LED_FUNCTION_FLASH; |
| 79 | }; |
| 80 | led@1 { |
| 81 | reg = <0x1>; |
| 82 | led-max-microamp = <10000>; |
| 83 | function = LED_FUNCTION_INDICATOR; |
| 84 | }; |
| 85 | }; |