From: Thomas Richard <thomas.richard@bootlin.com>
To: Francesco Dolcini <francesco@dolcini.it>,
Nishanth Menon <nm@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>,
u-kumar1@ti.com
Cc: Tero Kristo <kristo@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, gregory.clement@bootlin.com,
thomas.petazzoni@bootlin.com, richard.genoud@bootlin.com
Subject: Re: [PATCH] arm64: dts: ti: k3-j784s4: use ti,j7200-padconf compatible
Date: Wed, 4 Dec 2024 10:08:43 +0100 [thread overview]
Message-ID: <6e47e420-84c4-4539-ba54-5e1e939a37a5@bootlin.com> (raw)
In-Reply-To: <20241119190106.GA70080@francesco-nb>
On 11/19/24 20:01, Francesco Dolcini wrote:
> 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@bootlin.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.
Hello Francesco,
We are working on suspend-to-ram support for j7200 and j784s4.
During suspend-to-ram the SoC is fully powered-off (thanks to the PMIC
which powers off all the power rails except the DDR which is in
self-refresh), like on j7200.
Please let me know if you want more details.
Regards,
Thomas
next prev parent reply other threads:[~2024-12-04 9:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-13 10:43 [PATCH] arm64: dts: ti: k3-j784s4: use ti,j7200-padconf compatible Thomas Richard
2024-11-19 19:01 ` Francesco Dolcini
2024-12-04 9:08 ` Thomas Richard [this message]
2024-12-04 9:59 ` Francesco Dolcini
2024-12-04 10:21 ` Thomas Richard
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