linux-kernel - [PATCH v4 3/4] arm64: dts: qcom: Add PURWA-IOT-SOM platform

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Message-Id: <20260116104136.2922032-3-yijie.yang@oss.qualcomm.com>
Date: Fri, 16 Jan 2026 18:41:29 +0800
From: YijieYang <yijie.yang@....qualcomm.com>
To: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, yijie.yang@....qualcomm.com
Subject: [PATCH v4 3/4] arm64: dts: qcom: Add PURWA-IOT-SOM platform

From: Yijie Yang <yijie.yang@....qualcomm.com>

The PURWA-IOT-SOM is a compact computing module that integrates a System
on Chip (SoC) — specifically the x1p42100 — along with essential
components optimized for IoT applications. It is designed to be mounted on
carrier boards, enabling the development of complete embedded systems.

Purwa uses a slightly different Iris HW revision (8.1.2 on Hamoa, 8.1.11 on
Purwa). Support will be added later.

Make the following peripherals on the SOM enabled:
- Regulators on the SOM
- Reserved memory regions
- PCIe3, PCIe4, PCIe5, PCIe6a
- USB0 through USB6 and their PHYs
- ADSP, CDSP
- Graphic

Signed-off-by: Yijie Yang <yijie.yang@....qualcomm.com>
---
 .../qcom/{hamoa-iot-som.dtsi => purwa-iot-som.dtsi}   | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)
 copy arch/arm64/boot/dts/qcom/{hamoa-iot-som.dtsi => purwa-iot-som.dtsi} (99%)

diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi b/arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi
similarity index 99%
copy from arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi
copy to arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi
index b8e3e04a6fbd..fb90beb1096f 100644
--- a/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi
+++ b/arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi
@@ -3,11 +3,14 @@
  * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
  */
 
-#include "hamoa.dtsi"
+#include "purwa.dtsi"
 #include "hamoa-pmics.dtsi"
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
 
+/delete-node/ &pmc8380_6;
+/delete-node/ &pmc8380_6_thermal;
+
 / {
 	reserved-memory {
 		linux,cma {
@@ -378,16 +381,12 @@ vreg_l3j_0p8: ldo3 {
 	};
 };
 
-&iris {
-	status = "okay";
-};
-
 &gpu {
 	status = "okay";
 };
 
 &gpu_zap_shader {
-	firmware-name = "qcom/x1e80100/gen70500_zap.mbn";
+	firmware-name = "qcom/x1p42100/gen71500_zap.mbn";
 };
 
 &pcie3 {
-- 
2.34.1