From 82bb6fc121c2b04697d79efa0af6bb89d063d149 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] 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.

Signed-off-by: Bjarki Arge Andreasen <bjarki.andreasen@nordicsemi.no>
---
 .../clock/nordic,nrf-hsfll-global.yaml        | 44 +++++++++++++++++++
 dts/common/nordic/nrf54h20.dtsi               |  8 +++-
 2 files changed, 50 insertions(+), 2 deletions(-)
 create mode 100644 dts/bindings/clock/nordic,nrf-hsfll-global.yaml

diff --git a/dts/bindings/clock/nordic,nrf-hsfll-global.yaml b/dts/bindings/clock/nordic,nrf-hsfll-global.yaml
new file mode 100644
index 00000000000..d743cd76679
--- /dev/null
+++ b/dts/bindings/clock/nordic,nrf-hsfll-global.yaml
@@ -0,0 +1,44 @@
+# 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-hsfll-global";
+            clocks = <&fll16>;
+            #clock-cells = <0>;
+            clock-frequency = <320000000>;
+            supported-clock-frequencies = <64000000
+                                           128000000
+                                           256000000
+                                           320000000>;
+    };
+
+compatible: "nordic,nrf-hsfll-global"
+
+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
+
+  clock-frequency:
+    type: int
+    description: |
+      Optional fixed frequency specified if used in fixed
+      frequency mode.
diff --git a/dts/common/nordic/nrf54h20.dtsi b/dts/common/nordic/nrf54h20.dtsi
index 872ed614aba..62118b2faa7 100644
--- a/dts/common/nordic/nrf54h20.dtsi
+++ b/dts/common/nordic/nrf54h20.dtsi
@@ -182,10 +182,14 @@
 		};
 
 		hsfll120: hsfll120 {
-			compatible = "fixed-clock";
+			compatible = "nordic,nrf-hsfll-global";
 			clocks = <&fll16m>;
 			#clock-cells = <0>;
-			clock-frequency = <DT_FREQ_M(320)>;
+			clock-frequency = <320000000>;
+			supported-clock-frequencies = <64000000
+						       128000000
+						       256000000
+						       320000000>;
 		};
 
 		lfclk: lfclk {