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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /Documentation/devicetree/bindings/leds/register-bit-led.yaml
parentInitial commit. (diff)
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Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/register-bit-led.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Device Tree Bindings for Register Bit LEDs
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+description: |+
+ Register bit leds are used with syscon multifunctional devices where single
+ bits in a certain register can turn on/off a single LED. The register bit LEDs
+ appear as children to the syscon device, with the proper compatible string.
+ For the syscon bindings see:
+ Documentation/devicetree/bindings/mfd/syscon.yaml
+
+allOf:
+ - $ref: /schemas/leds/common.yaml#
+
+properties:
+ $nodename:
+ description:
+ The unit-address is in the form of @<reg addr>,<bit offset>
+ pattern: '^led@[0-9a-f]+,[0-9a-f]{1,2}$'
+
+ compatible:
+ const: register-bit-led
+
+ reg:
+ description:
+ The register address and size
+ maxItems: 1
+
+ mask:
+ description:
+ bit mask for the bit controlling this LED in the register
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum:
+ [ 0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, 0x100, 0x200, 0x400, 0x800,
+ 0x1000, 0x2000, 0x4000, 0x8000, 0x10000, 0x20000, 0x40000, 0x80000,
+ 0x100000, 0x200000, 0x400000, 0x800000, 0x1000000, 0x2000000, 0x4000000,
+ 0x8000000, 0x10000000, 0x20000000, 0x40000000, 0x80000000 ]
+
+ offset:
+ description:
+ register offset to the register controlling this LED
+ $ref: /schemas/types.yaml#/definitions/uint32
+ deprecated: true
+
+required:
+ - compatible
+ - mask
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+
+ syscon@10000000 {
+ compatible = "arm,realview-pb1176-syscon", "syscon";
+ reg = <0x10000000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x10000000 0x1000>;
+
+ led@8,0 {
+ compatible = "register-bit-led";
+ reg = <0x08 0x04>;
+ offset = <0x08>;
+ mask = <0x01>;
+ label = "versatile:0";
+ linux,default-trigger = "heartbeat";
+ default-state = "on";
+ };
+ led@8,1 {
+ compatible = "register-bit-led";
+ reg = <0x08 0x04>;
+ offset = <0x08>;
+ mask = <0x02>;
+ label = "versatile:1";
+ default-state = "off";
+ };
+ led@8,2 {
+ compatible = "register-bit-led";
+ reg = <0x08 0x04>;
+ offset = <0x08>;
+ mask = <0x04>;
+ label = "versatile:2";
+ default-state = "off";
+ };
+ };
+...