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

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Message-Id: <DDYYUTR0HNLU.1HP4LN58RESHB@baylibre.com>
Date: Mon, 03 Nov 2025 10:53:01 +0100
From: "Markus Schneider-Pargmann" <msp@...libre.com>
To: "Vignesh Raghavendra" <vigneshr@...com>, "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 Vignesh,

On Mon Nov 3, 2025 at 4:51 AM CET, Vignesh Raghavendra wrote:
> 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.

Thanks, I will not enable them in the next version.

Best
Markus

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


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