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/mfd/brcm,twd.yaml          | 69 ++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/brcm,twd.yaml

(limited to 'Documentation/devicetree/bindings/mfd/brcm,twd.yaml')

diff --git a/Documentation/devicetree/bindings/mfd/brcm,twd.yaml b/Documentation/devicetree/bindings/mfd/brcm,twd.yaml
new file mode 100644
index 0000000000..e5136a37b0
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/brcm,twd.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/brcm,twd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom's Timer-Watchdog (aka TWD)
+
+maintainers:
+  - Rafał Miłecki <rafal@milecki.pl>
+
+description: |
+  Broadcom has a Timer-Watchdog block used in multiple SoCs (e.g., BCM4908,
+  BCM63xx, BCM7038). There are few variants available (they differ slightly in
+  registers layout). This block consists of: timers, watchdog and optionally a
+  software reset handler.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - brcm,bcm4908-twd
+          - brcm,bcm7038-twd
+      - const: simple-mfd
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+  ranges: true
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+patternProperties:
+  '^timer@[a-f0-9]+$':
+    $ref: /schemas/timer/brcm,bcmbca-timer.yaml
+
+  '^watchdog@[a-f0-9]+$':
+    $ref: /schemas/watchdog/brcm,bcm7038-wdt.yaml
+
+additionalProperties: false
+
+required:
+  - reg
+
+examples:
+  - |
+    timer-mfd@ff800400 {
+        compatible = "brcm,bcm4908-twd", "simple-mfd", "syscon";
+        reg = <0xff800400 0x4c>;
+        ranges = <0x00000000 0xff800400 0x4c>;
+
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        timer@0 {
+            compatible = "brcm,bcm63138-timer";
+            reg = <0x0 0x28>;
+        };
+
+        watchdog@28 {
+            compatible = "brcm,bcm7038-wdt";
+            reg = <0x28 0x8>;
+        };
+    };
-- 
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