[linux dev-6.6 v1 2/6] dt-bindings: clock: npcm845: Add reference 25m clock property

[Tomer Maimon]

The NPCM8XX clock driver uses a 25Mhz external clock, therefore adding
clock property.

The new required clock property does not break the NPCM8XX clock ABI
since the NPCM8XX clock driver hasn't merged yet to the Linux vanilla.

Signed-off-by: Tomer Maimon <tmaimon77 at gmail.com>
---
 arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi | 9 +++++----
 arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts     | 7 +++++++
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi b/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi
index ecd171b2feba..41d345448430 100644
--- a/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi
+++ b/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi
@@ -52,6 +52,7 @@ rstc: reset-controller at f0801000 {
 			reg = <0x0 0xf0801000 0x0 0x78>;
 			#reset-cells = <2>;
 			nuvoton,sysgcr = <&gcr>;
+			clocks = <&refclk>;
 		};
 
 		clk: clock-controller at f0801000 {
@@ -81,7 +82,7 @@ timer0: timer at 8000 {
 				compatible = "nuvoton,npcm845-timer";
 				interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
 				reg = <0x8000 0x1C>;
-				clocks = <&clk NPCM8XX_CLK_REFCLK>;
+				clocks = <&refclk>;
 				clock-names = "refclk";
 			};
 
@@ -153,7 +154,7 @@ watchdog0: watchdog at 801c {
 				interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
 				reg = <0x801c 0x4>;
 				status = "disabled";
-				clocks = <&clk NPCM8XX_CLK_REFCLK>;
+				clocks = <&refclk>;
 				syscon = <&gcr>;
 			};
 
@@ -162,7 +163,7 @@ watchdog1: watchdog at 901c {
 				interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
 				reg = <0x901c 0x4>;
 				status = "disabled";
-				clocks = <&clk NPCM8XX_CLK_REFCLK>;
+				clocks = <&refclk>;
 				syscon = <&gcr>;
 			};
 
@@ -171,7 +172,7 @@ watchdog2: watchdog at a01c {
 				interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
 				reg = <0xa01c 0x4>;
 				status = "disabled";
-				clocks = <&clk NPCM8XX_CLK_REFCLK>;
+				clocks = <&refclk>;
 				syscon = <&gcr>;
 			};
 		};
diff --git a/arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts b/arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts
index a5ab2bc0f835..83c2f4e138e5 100644
--- a/arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts
+++ b/arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts
@@ -19,6 +19,13 @@ chosen {
 	memory {
 		reg = <0x0 0x0 0x0 0x40000000>;
 	};
+
+	refclk: refclk-25mhz {
+		compatible = "fixed-clock";
+		clock-output-names = "ref";
+		clock-frequency = <25000000>;
+		#clock-cells = <0>;
+	};
 };
 
 &serial0 {
-- 
2.34.1