From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 11 Apr 2024 10:27:49 +0200
Subject: Adding upstream version 6.6.15.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../devicetree/bindings/leds/register-bit-led.yaml | 95 ++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/register-bit-led.yaml

(limited to 'Documentation/devicetree/bindings/leds/register-bit-led.yaml')

diff --git a/Documentation/devicetree/bindings/leds/register-bit-led.yaml b/Documentation/devicetree/bindings/leds/register-bit-led.yaml
new file mode 100644
index 000000000..ed26ec19e
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/register-bit-led.yaml
@@ -0,0 +1,95 @@
+# 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: 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";
+        };
+    };
+...
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