From 9853527d6c1d18d3ce592a8754c1f8f8bddfef18 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marek.vasut@mailbox.org>
Date: Thu, 23 Oct 2025 23:46:05 +0200
Subject: [PATCH] ARM: dts: stm32: Fix STM32MP15xx DHSOM boot breakage due to
 ETZPC

Switch etzpc bus to simple-bus to prevent breakage on non-TFA systems.
This fixes boot of every STM32MP15xx DHSOM device.

Fixes: ad3cdc677dda ("ARM: stm32mp: add ETZPC system bus driver for STM32MP1")
Signed-off-by: Marek Vasut <marek.vasut@mailbox.org>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
---
 arch/arm/dts/stm32mp15xx-dhsom-u-boot.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/dts/stm32mp15xx-dhsom-u-boot.dtsi b/arch/arm/dts/stm32mp15xx-dhsom-u-boot.dtsi
index 386c605c07f..ed2629f379a 100644
--- a/arch/arm/dts/stm32mp15xx-dhsom-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp15xx-dhsom-u-boot.dtsi
@@ -51,3 +51,7 @@
 		};
 	};
 };
+
+&etzpc {
+	compatible = "simple-bus";
+};
-- 
2.47.3