linux-kernel - [PATCH 2/3] arm64: dts: ti: k3-j721s2-main: Add audio

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Message-ID: <20250604104656.38752-3-j-choudhary@ti.com>
Date: Wed, 4 Jun 2025 16:16:55 +0530
From: Jayesh Choudhary <j-choudhary@...com>
To: <nm@...com>, <vigneshr@...com>, <devicetree@...r.kernel.org>
CC: <kristo@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <r-donadkar@...com>,
        <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <j-choudhary@...com>
Subject: [PATCH 2/3] arm64: dts: ti: k3-j721s2-main: Add audio_refclk node

On J721S2 SoC, the AUDIO_REFCLK1 can be used as input to external
peripherals when configured through CTRL_MMR.
Add audio_refclk1 node which would be used as system clock for
audio codec PCM3168A.

Signed-off-by: Jayesh Choudhary <j-choudhary@...com>
---
 arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
index 6dee0c573980..e21f6092b3f0 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
@@ -74,6 +74,15 @@ ehrpwm_tbclk: clock-controller@140 {
 			reg = <0x140 0x18>;
 			#clock-cells = <1>;
 		};
+
+		audio_refclk1: clock-controller@...4 {
+			compatible = "ti,am62-audio-refclk";
+			reg = <0x42e4 0x4>;
+			clocks = <&k3_clks 157 299>;
+			assigned-clocks = <&k3_clks 157 299>;
+			assigned-clock-parents = <&k3_clks 157 328>;
+			#clock-cells = <0>;
+		};
 	};
 
 	main_ehrpwm0: pwm@...0000 {
-- 
2.34.1