linux-kernel - [PATCH v2 6/8] ARM: dts: stm32: add Hardware debug port (HDP) on stm32mp25

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Message-ID: <20250520-hdp-upstream-v2-6-53f6b8b5ffc8@foss.st.com>
Date: Tue, 20 May 2025 17:02:33 +0200
From: Clément Le Goffic <clement.legoffic@...s.st.com>
To: Linus Walleij <linus.walleij@...aro.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue
	<alexandre.torgue@...s.st.com>,
        Bartosz Golaszewski <brgl@...ev.pl>
CC: <linux-kernel@...r.kernel.org>, <linux-gpio@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        Clément Le Goffic
	<clement.legoffic@...s.st.com>
Subject: [PATCH v2 6/8] ARM: dts: stm32: add Hardware debug port (HDP) on
 stm32mp25

Add the hdp devicetree node for stm32mp25 SoC family

Signed-off-by: Clément Le Goffic <clement.legoffic@...s.st.com>
---
 arch/arm64/boot/dts/st/stm32mp251.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
index 87110f91e489..0fd79acd458f 100644
--- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
@@ -917,6 +917,13 @@ package_otp@1e8 {
 			};
 		};
 
+		hdp: pinctrl@...90000 {
+			compatible = "st,stm32mp251-hdp";
+			reg = <0x44090000 0x400>;
+			clocks = <&rcc CK_BUS_HDP>;
+			status = "disabled";
+		};
+
 		rcc: clock-controller@...00000 {
 			compatible = "st,stm32mp25-rcc";
 			reg = <0x44200000 0x10000>;

-- 
2.43.0