linux-kernel - Re: [PATCH 6/6] arm64: dts: ti: k3-am62p: Add partial-io wakeup sources

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Date: Fri, 24 May 2024 00:54:58 -0500
From: Nishanth Menon <nm@...com>
To: Markus Schneider-Pargmann <msp@...libre.com>
CC: Tero Kristo <kristo@...nel.org>, Santosh Shilimkar <ssantosh@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>,
        Vibhore Vardhan <vibhore@...com>, Kevin Hilman <khilman@...libre.com>,
        Dhruva Gole <d-gole@...com>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 6/6] arm64: dts: ti: k3-am62p: Add partial-io wakeup
 sources

On 10:02-20240523, Markus Schneider-Pargmann wrote:
> From: Vibhore Vardhan <vibhore@...com>
> 
> In Partial-IO mode there are a number of possible wakeup sources. Add
> the list of phandles to these wakeup sources. Based on the patch for
> AM62a.
> 
> Signed-off-by: Vibhore Vardhan <vibhore@...com>
> Signed-off-by: Markus Schneider-Pargmann <msp@...libre.com>
> ---
>  arch/arm64/boot/dts/ti/k3-am62p.dtsi | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62p.dtsi b/arch/arm64/boot/dts/ti/k3-am62p.dtsi
> index 94babc412575..4d43cc972056 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62p.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62p.dtsi
> @@ -123,3 +123,7 @@ cbass_wakeup: bus@...000 {
>  #include "k3-am62p-main.dtsi"
>  #include "k3-am62p-mcu.dtsi"
>  #include "k3-am62p-wakeup.dtsi"
> +
> +&dmsc {
> +	ti,partial-io-wakeup-sources = <&mcu_mcan0>, <&mcu_mcan1>, <&mcu_uart0>, <&wkup_uart0>;
> +};

NOTE: https://software-dl.ti.com/tisci/esd/latest/2_tisci_msgs/pm/lpm.html#supported-low-power-modes
table of SoCs supported do not provide J722s or AM62p in
the list. I suspect it is an oversight, but seems to be a mismatch atm.

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D