linux-kernel - Re: [PATCH] arm64: dts: ti: k3-j784s4: use ti,j7200-padconf compatible

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Message-ID: <20241119190106.GA70080@francesco-nb>
Date: Tue, 19 Nov 2024 20:01:06 +0100
From: Francesco Dolcini <francesco@...cini.it>
To: Thomas Richard <thomas.richard@...tlin.com>, Nishanth Menon <nm@...com>,
	Vignesh Raghavendra <vigneshr@...com>, u-kumar1@...com
Cc: Tero Kristo <kristo@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, gregory.clement@...tlin.com,
	thomas.petazzoni@...tlin.com, richard.genoud@...tlin.com
Subject: Re: [PATCH] arm64: dts: ti: k3-j784s4: use ti,j7200-padconf
 compatible

Hello Thomas and TI folks,

On Wed, Nov 13, 2024 at 11:43:05AM +0100, Thomas Richard wrote:
> Like on j7200, pinctrl contexts shall be saved and restored during
> suspend-to-ram.
> 
> So use ti,j7200-padconf compatible.
> 
> Signed-off-by: Thomas Richard <thomas.richard@...tlin.com>
> ---
> Use ti,j7200-padconf compatible to save and restore pinctrl contexts during
> suspend-to-ram.
> ---
>  arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi       |  6 +++---
>  arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi | 12 ++++++------

Do j784s4 supports any kind of low power mode and/or suspend to ram? My
understanding was that this was not supported, but maybe there is some
details that was lost when I was told this information.

Thanks,
Francesco