linux-kernel - [PATCH v3 1/2] arm64: dts: ti: k3-j784s4-j742s2-main-common: add ACSPCIE0 node

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Message-ID: <20250422123218.3788223-2-s-vadapalli@ti.com>
Date: Tue, 22 Apr 2025 18:02:17 +0530
From: Siddharth Vadapalli <s-vadapalli@...com>
To: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>, <u-kumar1@...com>,
        <parth105105@...il.com>, <parth.pancholi@...adex.com>
CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <srk@...com>,
        <s-vadapalli@...com>
Subject: [PATCH v3 1/2] arm64: dts: ti: k3-j784s4-j742s2-main-common: add ACSPCIE0 node

The ACSPCIE0 module on TI's J784S4 SoC is capable of driving the
reference clock required by the PCIe Endpoint device. It is an
alternative to on-board and external reference clock generators.
Add the device-tree node for the same.

Signed-off-by: Siddharth Vadapalli <s-vadapalli@...com>
---

The previous versions of this series were a single patch. Based on the
feedback received on previous versions, the SoC and Board support has
been split in order to allow reuse for other Boards based on the same
SoC.

v2 patch:
https://lore.kernel.org/r/20250411121307.793646-1-s-vadapalli@ti.com/
Changes since v2 patch:
- The SoC and board changes have been split across:
  k3-j784s4-j742s2-main-common.dtsi and k3-j784s4-j742s2-evm-common.dtsi
  respectively.

Regards,
Siddharth.

 arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi
index 1944616ab357..f03b2b6d5d03 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi
@@ -126,6 +126,11 @@ audio_refclk1: clock@...4 {
 			assigned-clock-parents = <&k3_clks 157 63>;
 			#clock-cells = <0>;
 		};
+
+		acspcie0_proxy_ctrl: clock-controller@...90 {
+			compatible = "ti,j784s4-acspcie-proxy-ctrl", "syscon";
+			reg = <0x1a090 0x4>;
+		};
 	};
 
 	main_ehrpwm0: pwm@...0000 {
-- 
2.34.1