From 63e3befa7630424d6b7eeb79f228214d177cfbfa Mon Sep 17 00:00:00 2001
From: Bjarki Arge Andreasen <bjarki.andreasen@nordicsemi.no>
Date: Thu, 21 Nov 2024 13:38:40 +0100
Subject: [PATCH] [nrf fromlist] dts: nordic: specify device model of global
 hsfll clock

Add specific device model for global hsfll clock and update dts tree
to use specific model. The clock is not fixed, and configurable at
runtime to predefined frequencies specified by the platform.

Upstream PR #: 81735

Signed-off-by: Bjarki Arge Andreasen <bjarki.andreasen@nordicsemi.no>
---
 .../clock/nordic,nrf-global-hsfll.yaml        | 36 +++++++++++++++++++
 dts/common/nordic/nrf54h20.dtsi               |  6 ++--
 2 files changed, 40 insertions(+), 2 deletions(-)
 create mode 100644 dts/bindings/clock/nordic,nrf-global-hsfll.yaml

diff --git a/dts/bindings/clock/nordic,nrf-global-hsfll.yaml b/dts/bindings/clock/nordic,nrf-global-hsfll.yaml
new file mode 100644
index 00000000000..d2fa51db486
--- /dev/null
+++ b/dts/bindings/clock/nordic,nrf-global-hsfll.yaml
@@ -0,0 +1,36 @@
+# Copyright (c) 2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+description: |
+  Nordic Global HSFLL clock.
+
+  The lowest supported clock frequency is the default
+  clock frequency.
+
+  Example:
+
+    global_hsfll: global_hsfll {
+            compatible = "nordic,nrf-global-hsfll";
+            clocks = <&fll16>;
+            #clock-cells = <0>;
+            supported-clock-frequencies = <64000000
+                                           128000000
+                                           320000000>;
+    };
+
+compatible: "nordic,nrf-global-hsfll"
+
+include:
+  - "base.yaml"
+  - "clock-controller.yaml"
+
+properties:
+  clocks:
+    required: true
+
+  "#clock-cells":
+    const: 0
+
+  supported-clock-frequencies:
+    type: array
+    description: Supported clock frequencies in ascending order
diff --git a/dts/common/nordic/nrf54h20.dtsi b/dts/common/nordic/nrf54h20.dtsi
index a9523f15465..9bb82897039 100644
--- a/dts/common/nordic/nrf54h20.dtsi
+++ b/dts/common/nordic/nrf54h20.dtsi
@@ -180,10 +180,12 @@
 		};
 
 		hsfll120: hsfll120 {
-			compatible = "fixed-clock";
+			compatible = "nordic,nrf-global-hsfll";
 			clocks = <&fll16m>;
 			#clock-cells = <0>;
-			clock-frequency = <DT_FREQ_M(320)>;
+			supported-clock-frequencies = <64000000
+						       128000000
+						       320000000>;
 		};
 
 		lfclk: lfclk {