Lines Matching +full:flash +full:- +full:leds

1 .. SPDX-License-Identifier: GPL-2.0
5 Describing and referring to LEDs in ACPI
8 Individual LEDs are described by hierarchical data extension [5] nodes under the
10 tells the numerical ID of each individual LED output to which the LEDs are
11 connected. [leds] The hierarchical data nodes are named "led@X", where X is the
14 Referring to LEDs in Device tree is documented in [video-interfaces], in
15 "flash-leds" property documentation. In short, LEDs are directly referred to by
20 the same mechanism on ACPI is not possible. A mechanism to refer to non-device
21 ACPI nodes is documented in [data-node-ref].
26 individual LEDs. The value of the "reg" property is a contract between the
37 An ASL example of a camera sensor device and a LED driver device for two LEDs is
38 show below. Objects not relevant for LEDs or the references to them have been
44 			ToUUID("dbb8e3e6-5886-4ba6-8795-1319f52a966b"),
51 			ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
54 				Package () { "flash-max-microamp", 1000000 },
55 				Package () { "flash-timeout-us", 200000 },
56 				Package () { "led-max-microamp", 100000 },
57 				Package () { "label", "white:flash" },
61 			ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
64 				Package () { "led-max-microamp", 10000 },
73 			ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
76 					"flash-leds",
95     https://uefi.org/specifications/ACPI/6.4/, referenced 2021-11-30.
97 [data-node-ref] Documentation/firmware-guide/acpi/dsd/data-node-references.rst
99 [devicetree] Devicetree. https://www.devicetree.org, referenced 2019-02-21.
101 [dsd-guide] DSD Guide.
102     https://github.com/UEFI/DSD-Guide/blob/main/dsd-guide.adoc, referenced
103     2021-11-30.
105 [leds] Documentation/devicetree/bindings/leds/common.yaml
107 [video-interfaces] Documentation/devicetree/bindings/media/video-interfaces.yaml