linux-kernel - Re: [PATCH v4 5/6] arm64: dts: ti: k3-am62a7-sk: Set wakeup-source system-states

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Message-ID: <32b13258-19dd-4ba7-a13b-daaf3804a7c8@ti.com>
Date: Mon, 3 Nov 2025 09:21:42 +0530
From: Vignesh Raghavendra <vigneshr@...com>
To: "Markus Schneider-Pargmann (TI.com)" <msp@...libre.com>, Nishanth Menon
	<nm@...com>, Tero Kristo <kristo@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>
CC: <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Vishal Mahaveer <vishalm@...com>, "Kevin
 Hilman" <khilman@...libre.com>, Dhruva Gole <d-gole@...com>, Sebin Francis
	<sebin.francis@...com>, Kendall Willis <k-willis@...com>, Akashdeep Kaur
	<a-kaur@...com>
Subject: Re: [PATCH v4 5/6] arm64: dts: ti: k3-am62a7-sk: Set wakeup-source
 system-states

Hi Markus

[...]

On 30/10/25 14:47, Markus Schneider-Pargmann (TI.com) wrote:
> +&mcu_mcan0 {
> +	pinctrl-names = "default", "wakeup";
> +	pinctrl-0 = <&mcu_mcan0_tx_pins_default>, <&mcu_mcan0_rx_pins_default>;
> +	pinctrl-1 = <&mcu_mcan0_tx_pins_default>, <&mcu_mcan0_rx_pins_wakeup>;
> +	wakeup-source = <&system_partial_io>,
> +			<&system_io_ddr>,
> +			<&system_deep_sleep>,
> +			<&system_mcu_only>,
> +			<&system_standby>;
> +	status = "okay";
> +};
> +
> +&mcu_mcan1 {
> +	pinctrl-names = "default", "wakeup";
> +	pinctrl-0 = <&mcu_mcan1_tx_pins_default>, <&mcu_mcan1_rx_pins_default>;
> +	pinctrl-1 = <&mcu_mcan1_tx_pins_default>, <&mcu_mcan1_rx_pins_wakeup>;
> +	wakeup-source = <&system_partial_io>,
> +			<&system_io_ddr>,
> +			<&system_deep_sleep>,
> +			<&system_mcu_only>,
> +			<&system_standby>;
> +	status = "okay";
> +};
> +
> +&mcu_uart0 {
> +	wakeup-source = <&system_io_ddr>,
> +			<&system_deep_sleep>,
> +			<&system_mcu_only>,
> +			<&system_standby>;
> +};
> +

MCU peripherals are under control of MCU R5 which would be running a
safety application on AM62A class of SoC. So these peripherals should
not be enabled by default here.

>  #include "k3-am62a-ti-ipc-firmware.dtsi"

-- 
Regards
Vignesh
https://ti.com/opensource