linux-kernel - [PATCH v1 1/2] arm64: dts: nuvoton: combine NPCM845 reset and clk nodes

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Message-ID: <20250706134207.2168184-2-tmaimon77@gmail.com>
Date: Sun, 6 Jul 2025 16:42:06 +0300
From: Tomer Maimon <tmaimon77@...il.com>
To: <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
	<conor+dt@...nel.org>, <avifishman70@...il.com>, <tali.perry1@...il.com>,
	<joel@....id.au>, <venture@...gle.com>, <yuenn@...gle.com>,
	<benjaminfair@...gle.com>
CC: <openbmc@...ts.ozlabs.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Tomer Maimon <tmaimon77@...il.com>
Subject: [PATCH v1 1/2] arm64: dts: nuvoton: combine NPCM845 reset and clk nodes

Combine the NPCM845 reset and clock controller nodes into a single node
with compatible "nuvoton,npcm845-reset" in nuvoton-common-npcm8xx.dtsi,
using the auxiliary device framework to provide clock functionality.

Update the register range to 0xC4 to cover the shared reset and clock
registers at 0xf0801000.

Remove the separate nuvoton,npcm845-clk node, as the reset driver now
handles clocks via an auxiliary device.

Signed-off-by: Tomer Maimon <tmaimon77@...il.com>
---
 .../boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi      | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi b/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi
index fead4dde590d..2a36d0b2824e 100644
--- a/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi
+++ b/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi
@@ -47,17 +47,12 @@ ahb {
 		interrupt-parent = <&gic>;
 		ranges;
 
-		rstc: reset-controller@...01000 {
+		clk: rstc: reset-controller@...01000 {
 			compatible = "nuvoton,npcm845-reset";
-			reg = <0x0 0xf0801000 0x0 0x78>;
-			#reset-cells = <2>;
+			reg = <0x0 0xf0801000 0x0 0xC4>;
 			nuvoton,sysgcr = <&gcr>;
-		};
-
-		clk: clock-controller@...01000 {
-			compatible = "nuvoton,npcm845-clk";
+			#reset-cells = <2>;
 			#clock-cells = <1>;
-			reg = <0x0 0xf0801000 0x0 0x1000>;
 		};
 
 		apb {
-- 
2.34.1