From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout-p-202.mailbox.org (mout-p-202.mailbox.org [80.241.56.172]) (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 CE7253264EA; Wed, 9 Sep 2026 04:37:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.241.56.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788928676; cv=none; b=XqzUK1WD/tYLflNtPZqDjUrckOzQ1lxNJqLJFiFzuBj89Fy3o58cvQcJXhNG6GNE2Bjig1aIR6un4d/QUJi14Q4equDte0LOaoc3EjOL08Qp9fOZnBHZoS8S5Oq+3N6aObrvCrRKWvUJkPPDMh2aVDSGAxSM4qE2c4kNB99A06M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788928676; c=relaxed/simple; bh=eG9VVcfzi7pkWrfKLBjQkMTy5n8GJaU4Z9lPu/fZXmk=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=asd8wV0srPKHy9voIMy3ZZ3WVynZIV15bwRJ3tZXd2x3m6SJhBWxvsdkqiFXatVyvJyfvLuTPLP8ujf4pcZt5NvZZJmggMLaTGGs9IVZ7E5iFhiRPjzf1FjUbm3vAkE6LcQvUVT4QOUXH9L6UwpZmhk2q18Wa/N72GhEyyQuI/4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org; spf=pass smtp.mailfrom=mailbox.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b=oLgjbW67; arc=none smtp.client-ip=80.241.56.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mailbox.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b="oLgjbW67" Received: from smtp202.mailbox.org (smtp202.mailbox.org [IPv6:2001:67c:2050:b231:465::202]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-202.mailbox.org (Postfix) with ESMTPS id 4hfp2L57grzMlFd; Wed, 09 Sep 2026 06:37:46 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1788928666; 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=67tux91yUFkgKxFKhelqMsixAxrdmMG+zLHiWwpznfk=; b=oLgjbW67ZzrWy+uU+6rqhMzp+Flgwet2T1MJCW2P94GZQrL7r7we34erDsLcmhDziAGScw zAXBfnF01JZuMTz++QM043X+vELgsJTRSsc73ow7H5TfQFYIzdvUz0sL9r1ue0ulGgBXVh MffibHI1PJFwZEkeAWft86LogkEz1ylDc5uFu4IfheEUr/SSCLYw4o1ZYeSC1tC3kTgHtO +4rsoNiB15oNvZIAiC6TYqoimUpgb9OH35SeLu7w2IPoelY7nCMZS5Ov9Y6TklMbfIUkKg yCNHpe/+SgDSeLkdJjcDRyuRSJCO19I/v3f2Q1ujT1wmyRKIoyvMMGNoLkC13Q== Message-ID: <1758591c-4583-4db1-a9bc-32430bbb6a37@mailbox.org> Date: Wed, 9 Sep 2026 04:22:03 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH v3] PCI: rcar-gen4: Add missing PM ops To: Koichiro Den Cc: linux-pci@vger.kernel.org, Geert Uytterhoeven , =?UTF-8?Q?Krzysztof_Wilczy=C5=84ski?= , Bjorn Helgaas , Conor Dooley , Krzysztof Kozlowski , Lorenzo Pieralisi , Magnus Damm , Manivannan Sadhasivam , Rob Herring , Yoshihiro Shimoda , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org References: <20260907163554.725127-1-marek.vasut+renesas@mailbox.org> <74il3j2dzfdt4xhqrfjkifhnpnmgqtplon2mtzfjzkbszwegi7@vou6a5rshcvr> Content-Language: en-US From: Marek Vasut In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-MBO-RS-ID: 9666f74209110f82f62 X-MBO-RS-META: pnrx5kkfu5j5zuj4856bbzec8ida5d3a On 9/9/26 4:17 AM, Koichiro Den wrote: Hello Den-san, >>> The s2idle test with pm_test=platform now passes in EP mode on S4 Spider even >>> with CONFIG_PCIE_DW_HOST=y. Thanks! Feel free to use the tag for it if it helps. >>> >>> Tested-by: Koichiro Den >> Thank you for your test. I would like to ask -- is the EP side of PCIe link >> behaving correctly during suspend/resume cycle on your S4 setup ? Does the >> EP require any special handling during suspend/resume ? > > To be clear, what I confirmed was the following: > > - The panic I observed with v1 no longer occurs with this newer revision. > - I could create a vNTB EPF after running the test. > - With vNTB/ntb_netdev already connected before the test. ping resumed normally > afterwards. > > Note: I used the suspend test from the commit message on the EP: > echo s2idle > /sys/power/mem_sleep && \ > echo platform > /sys/power/pm_test && \ > echo mem > /sys/power/state > > Based on these, I believe this patch introduces no regression in EP mode on S4. > Any pre-existing EP suspend/resume issues could be addressed separately. Understood. Thank you for your help ! -- Best regards, Marek Vasut