Lines Matching +full:led +full:- +full:2
1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jacek Anaszewski <jacek.anaszewski@gmail.com>
11 - Pavel Machek <pavel@ucw.cz>
14 LED and flash LED devices provide the same basic functionality as current
15 regulators, but extended with LED and flash LED specific features like
18 Many LED devices expose more than one current output that can be connected
19 to one or more discrete LED component. Since the arrangement of connections
20 can influence the way of the LED device initialization, the LED components
21 have to be tightly coupled with the LED device binding. They are represented
22 by child nodes of the parent LED device binding.
25 led-sources:
27 List of device current outputs the LED is connected to. The outputs are
28 identified by the numbers that must be defined in the LED device binding
30 $ref: /schemas/types.yaml#/definitions/uint32-array
34 LED function. Use one of the LED_FUNCTION_* prefixed definitions
35 from the header include/dt-bindings/leds/common.h. If there is no
41 Color of the LED. Use one of the LED_COLOR_ID_* prefixed definitions from
42 the header include/dt-bindings/leds/common.h. If there is no matching
48 function-enumerator:
56 The label for this LED. If omitted, the label is taken from the node name
58 no other LED class device can be assigned the same label. This property is
59 deprecated - use 'function' and 'color' properties instead.
60 function-enumerator has no effect when this property is present.
62 default-state:
64 The initial state of the LED. If the LED is already on or off and the
65 default-state property is set the to same value, then no glitch should be
66 produced where the LED momentarily turns off (or on). The "keep" setting
67 will keep the LED at whatever its current state is, without producing a
71 - on
72 - off
73 - keep
76 linux,default-trigger:
79 the LED.
83 - enum:
84 # LED will act as a back-light, controlled by the framebuffer system
85 - backlight
86 # LED will turn on (see also "default-state" property)
87 - default-on
88 # LED "double" flashes at a load average based rate
89 - heartbeat
90 # LED indicates disk activity
91 - disk-activity
92 # LED indicates disk read activity
93 - disk-read
94 # LED indicates disk write activity
95 - disk-write
96 # LED flashes at a fixed, configurable rate
97 - timer
98 # LED alters the brightness for the specified duration with one software
99 # timer (requires "led-pattern" property)
100 - pattern
101 # LED indicates mic mute state
102 - audio-micmute
103 # LED indicates audio mute state
104 - audio-mute
105 # LED indicates bluetooth power state
106 - bluetooth-power
107 # LED indicates camera flash state
108 - flash
109 # LED indicated keyboard capslock
110 - kbd-capslock
111 # LED indicates MTD memory activity
112 - mtd
113 # LED indicates NAND memory activity (deprecated),
115 - nand-disk
116 # No trigger assigned to the LED. This is the default mode
118 - none
119 # LED indicates camera torch state
120 - torch
121 # LED indicates USB gadget activity
122 - usb-gadget
123 # LED indicates USB host activity
124 - usb-host
125 # LED indicates USB port state
126 - usbport
127 # LED is triggered by CPU activity
128 - pattern: "^cpu[0-9]*$"
129 # LED is triggered by Bluetooth activity
130 - pattern: "^hci[0-9]+-power$"
131 # LED is triggered by SD/MMC activity
132 - pattern: "^mmc[0-9]+$"
133 # LED is triggered by WLAN activity
134 - pattern: "^phy[0-9]+tx$"
136 led-pattern:
141 - one-shot : two numbers specifying delay on and delay off (in ms),
142 - timer : two numbers specifying delay on and delay off (in ms),
143 - pattern : the pattern is given by a series of tuples, of
146 Documentation/devicetree/bindings/leds/leds-trigger-pattern.txt
147 $ref: /schemas/types.yaml#/definitions/uint32-matrix
149 minItems: 2
150 maxItems: 2
152 led-max-microamp:
154 Maximum LED supply current in microamperes. This property can be made
157 For flash LED controllers with configurable current this property is
158 mandatory for the LEDs in the non-flash modes (e.g. torch or indicator).
160 max-brightness:
164 It could happen that an LED is made so bright that it gets damaged or
167 Note that this flag is mainly used for PWM-LEDs, where it is not possible
169 led-max-microamp.
172 panic-indicator:
174 This property specifies that the LED should be used, if at all possible,
178 retain-state-shutdown:
180 This property specifies that the LED should not be turned off or changed
184 trigger-sources:
186 List of devices which should be used as a source triggering this LED
188 indicate its state. E.g. USB 2.0 LED may react to device(s) in a USB 2.0
191 each of them having its own LED assigned (assuming they are not
194 In many cases LED can be related to more than one device (e.g. one USB LED
198 #trigger-source-cells property in the source node.
199 $ref: /schemas/types.yaml#/definitions/phandle-array
201 # Required properties for flash LED child nodes:
202 flash-max-microamp:
204 Maximum flash LED supply current in microamperes. Required for flash LED
207 flash-max-timeout-us:
209 Maximum timeout in microseconds after which the flash LED is turned off.
210 Required for flash LED nodes with configurable timeout.
215 - |
216 #include <dt-bindings/gpio/gpio.h>
217 #include <dt-bindings/leds/common.h>
219 led-controller {
220 compatible = "gpio-leds";
222 led-0 {
224 linux,default-trigger = "heartbeat";
228 led-1 {
231 trigger-sources = <&ohci_port1>, <&ehci_port1>;
235 - |
236 #include <dt-bindings/leds/common.h>
238 led-controller {
239 compatible = "maxim,max77693-led";
241 led {
244 led-sources = <0>, <1>;
245 led-max-microamp = <50000>;
246 flash-max-microamp = <320000>;
247 flash-max-timeout-us = <500000>;
251 - |
252 #include <dt-bindings/leds/common.h>
255 #address-cells = <1>;
256 #size-cells = <0>;
258 led-controller@30 {
261 #address-cells = <1>;
262 #size-cells = <0>;
264 led@1 {
266 linux,default-trigger = "heartbeat";
268 function-enumerator = <1>;
271 led@2 {
272 reg = <2>;
274 function-enumerator = <2>;
277 led@3 {
280 function-enumerator = <3>;