From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [217.70.183.200]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6C81C19068E; Wed, 4 Dec 2024 09:08:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733303332; cv=none; b=llBmjLrKxnz7Q3fuNZeQlvP8K3DeE6mKucbnZ3TDxF0wFXQzfJXJmsNoE++r1nlgJqUZ4iWJb9zbSMxHWf7yYS/mkbo58yDxcv5civFDCQWaOIEUMexMdg7hQt7ycCVD1ptbT8CosAa6YPglBKufkqmcvThcNvEyo7pY4nUPSks= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733303332; c=relaxed/simple; bh=KzEazuozwzNQCKTS1PLyozmJsnY2CM2aKlSSLs5lkhM=; h=Message-ID:Date:MIME-Version:From:Subject:To:Cc:References: In-Reply-To:Content-Type; b=W0GMFPFm2GXgvQLraNL7zsiHNTby6GMslK+rDUfgoh9fNSH9puBDZmfe0QYhMSRm1XlhgwllP4aRHRwj6UjDuKRrCOB2dE4IMirNaGS2ld97Tg7l9kxnJ9qS5uGIH0QINvke1TCTsfbrHGrJljfCt7NYKYRP5AC9IF8eKJm0hHE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=fZ6TNfcg; arc=none smtp.client-ip=217.70.183.200 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="fZ6TNfcg" Received: by mail.gandi.net (Postfix) with ESMTPSA id 86EF320002; Wed, 4 Dec 2024 09:08:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1733303327; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=aBoNT22bjOCCH26k5KlABL0rZ5aFoWyBOOtQ5GiVdgE=; b=fZ6TNfcgsKAfXWizpuvYO/VCeUpqVxLoLZU0h80AsSTwqITeBbhUdPjLlXQoRTMhTD83WZ BMDO62sEiMIn92tgFQAaZOkJxlNlDDpGzkk6+e+BPQ7J6eWpGcmwWASDrdwBNmoZV0+0nu SA3mA9Y1v0+JhDqxImGDJbJeSLQ5no9AOHm88gX9w7kWEAuF3Wg5oX/Y8Rs+tiY8n2LKiZ NvDWh4ejpPUPPGSulUjafKPYkRXWNvDtX4JyheQYSYRuvkgiIE0Xh3Is60T+sPjTRV8P/o 46IVd9CX6nsK+ETjvRUGXahr6FZf6Pmti9v3gWkaaN1FH/UMEgnTV96oaKUdxQ== Message-ID: <6e47e420-84c4-4539-ba54-5e1e939a37a5@bootlin.com> Date: Wed, 4 Dec 2024 10:08:43 +0100 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Thomas Richard Subject: Re: [PATCH] arm64: dts: ti: k3-j784s4: use ti,j7200-padconf compatible To: Francesco Dolcini , Nishanth Menon , Vignesh Raghavendra , u-kumar1@ti.com Cc: Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley , 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 References: <20241113-j784s4-s2r-pinctrl-v1-1-19aeb62739bc@bootlin.com> <20241119190106.GA70080@francesco-nb> Content-Language: en-US In-Reply-To: <20241119190106.GA70080@francesco-nb> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-GND-Sasl: thomas.richard@bootlin.com 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 >> --- >> 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