1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/leds/kineti 4 $id: http://devicetree.org/schemas/leds/kinetic,ktd2692.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: KTD2692 Flash LED Driver from Kinetic T 7 title: KTD2692 Flash LED Driver from Kinetic Technologies
8 8
9 maintainers: 9 maintainers:
10 - Markuss Broks <markuss.broks@gmail.com> 10 - Markuss Broks <markuss.broks@gmail.com>
11 11
12 description: | 12 description: |
13 KTD2692 is the ideal power solution for high 13 KTD2692 is the ideal power solution for high-power flash LEDs.
14 It uses ExpressWire single-wire programming 14 It uses ExpressWire single-wire programming for maximum flexibility.
15 15
16 The ExpressWire interface through CTRL pin c 16 The ExpressWire interface through CTRL pin can control LED on/off and
17 enable/disable the IC, Movie(max 1/3 of Flas 17 enable/disable the IC, Movie(max 1/3 of Flash current) / Flash mode current,
18 Flash timeout, LVP(low voltage protection). 18 Flash timeout, LVP(low voltage protection).
19 19
20 Also, When the AUX pin is pulled high while 20 Also, When the AUX pin is pulled high while CTRL pin is high,
21 LED current will be ramped up to the flash-m 21 LED current will be ramped up to the flash-mode current level.
22 22
23 properties: 23 properties:
24 compatible: 24 compatible:
25 const: kinetic,ktd2692 25 const: kinetic,ktd2692
26 26
27 ctrl-gpios: 27 ctrl-gpios:
28 maxItems: 1 28 maxItems: 1
29 description: Specifier of the GPIO connect 29 description: Specifier of the GPIO connected to CTRL pin.
30 30
31 aux-gpios: 31 aux-gpios:
32 maxItems: 1 32 maxItems: 1
33 description: Specifier of the GPIO connect 33 description: Specifier of the GPIO connected to CTRL pin.
34 34
35 vin-supply: 35 vin-supply:
36 description: LED supply (2.7V to 5.5V). 36 description: LED supply (2.7V to 5.5V).
37 37
38 led: 38 led:
39 type: object 39 type: object
40 $ref: common.yaml# 40 $ref: common.yaml#
41 description: Properties for the LED. 41 description: Properties for the LED.
42 properties: 42 properties:
43 function: true 43 function: true
44 color: true 44 color: true
45 flash-max-timeout-us: 45 flash-max-timeout-us:
46 description: Flash LED maximum timeout 46 description: Flash LED maximum timeout.
47 47
48 led-max-microamp: 48 led-max-microamp:
49 maximum: 300000 49 maximum: 300000
50 description: Minimum Threshold for Tim 50 description: Minimum Threshold for Timer protection
51 is defined internally (Maximum 300mA 51 is defined internally (Maximum 300mA).
52 52
53 flash-max-microamp: 53 flash-max-microamp:
54 maximum: 300000 54 maximum: 300000
55 description: Flash LED maximum current 55 description: Flash LED maximum current
56 Formula - I(uA) = 15000000 / Rset. 56 Formula - I(uA) = 15000000 / Rset.
57 57
58 additionalProperties: false 58 additionalProperties: false
59 59
60 required: 60 required:
61 - compatible 61 - compatible
62 - ctrl-gpios 62 - ctrl-gpios
63 - led 63 - led
64 64
65 additionalProperties: false 65 additionalProperties: false
66 66
67 examples: 67 examples:
68 - | 68 - |
69 #include <dt-bindings/gpio/gpio.h> 69 #include <dt-bindings/gpio/gpio.h>
70 #include <dt-bindings/leds/common.h> 70 #include <dt-bindings/leds/common.h>
71 71
72 ktd2692 { 72 ktd2692 {
73 compatible = "kinetic,ktd2692"; 73 compatible = "kinetic,ktd2692";
74 ctrl-gpios = <&gpc0 1 0>; 74 ctrl-gpios = <&gpc0 1 0>;
75 aux-gpios = <&gpc0 2 0>; 75 aux-gpios = <&gpc0 2 0>;
76 vin-supply = <&vbat>; 76 vin-supply = <&vbat>;
77 77
78 led { 78 led {
79 function = LED_FUNCTION_FLASH; 79 function = LED_FUNCTION_FLASH;
80 color = <LED_COLOR_ID_WHITE>; 80 color = <LED_COLOR_ID_WHITE>;
81 flash-max-timeout-us = <250000>; 81 flash-max-timeout-us = <250000>;
82 flash-max-microamp = <150000>; 82 flash-max-microamp = <150000>;
83 led-max-microamp = <25000>; 83 led-max-microamp = <25000>;
84 }; 84 };
85 }; 85 };
86 86
87 ... 87 ...
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