Re: [PATCH v2 2/2] ARM: dts: stm32: add resets property to m_can nodes in the stm32mp153
From: Alexandre TORGUE <alexandre.torgue@foss.st.com>
Date: 2025-09-03 13:13:51
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linux-arm-kernel, linux-can, lkml
Hi Marc On 8/7/25 08:09, Marc Kleine-Budde wrote:
quoted hunk ↗ jump to hunk
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@pengutronix.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@4400e000 { 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@4400f000 { 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";
How those reset are handled at driver side ? regards alex