linux-kernel - [PATCH] ARM: dts: stm32: add resets property to m

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Message-Id: <20250806-stm32mp15-m_can-add-reset-v1-1-9d81f9c29d65@pengutronix.de>
Date: Wed, 06 Aug 2025 10:59:12 +0200
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: 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>
Cc: devicetree@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 kernel@...gutronix.de, Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH] ARM: dts: stm32: add resets property to m_can nodes in the
 stm32mp153

On the STM32MP153 the m_cam IP cores (a.k.a. FDCAN) have an external
shared reset in the RCC. Add the reset to both m_can nodes.

Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 arch/arm/boot/dts/st/stm32mp153.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/st/stm32mp153.dtsi b/arch/arm/boot/dts/st/stm32mp153.dtsi
index 4640dafb1598..92794b942ab2 100644
--- a/arch/arm/boot/dts/st/stm32mp153.dtsi
+++ b/arch/arm/boot/dts/st/stm32mp153.dtsi
@@ -40,6 +40,7 @@ m_can1: can@...0e000 {
 		interrupt-names = "int0", "int1";
 		clocks = <&rcc CK_HSE>, <&rcc FDCAN_K>;
 		clock-names = "hclk", "cclk";
+		resets = <&rcc FDCAN_R>;
 		bosch,mram-cfg = <0x0 0 0 32 0 0 2 2>;
 		access-controllers = <&etzpc 62>;
 		status = "disabled";
@@ -54,6 +55,7 @@ m_can2: can@...0f000 {
 		interrupt-names = "int0", "int1";
 		clocks = <&rcc CK_HSE>, <&rcc FDCAN_K>;
 		clock-names = "hclk", "cclk";
+		resets = <&rcc FDCAN_R>;
 		bosch,mram-cfg = <0x1400 0 0 32 0 0 2 2>;
 		access-controllers = <&etzpc 62>;
 		status = "disabled";

---
base-commit: 1a32f7427eb3d1248bc64cd745b93f88cc838933
change-id: 20250806-stm32mp15-m_can-add-reset-ccfc47213ba3

Best regards,
--  
Marc Kleine-Budde <mkl@...gutronix.de>