From: Bjorn Helgaas <helgaas@kernel.org>
To: Hongxing Zhu <hongxing.zhu@nxp.com>
Cc: "mani@kernel.org" <mani@kernel.org>, Frank Li <frank.li@nxp.com>,
"jingoohan1@gmail.com" <jingoohan1@gmail.com>,
"l.stach@pengutronix.de" <l.stach@pengutronix.de>,
"lpieralisi@kernel.org" <lpieralisi@kernel.org>,
"kwilczynski@kernel.org" <kwilczynski@kernel.org>,
"robh@kernel.org" <robh@kernel.org>,
"bhelgaas@google.com" <bhelgaas@google.com>,
"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"festevam@gmail.com" <festevam@gmail.com>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"imx@lists.linux.dev" <imx@lists.linux.dev>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"stable@vger.kernel.org" <stable@vger.kernel.org>
Subject: Re: [PATCH v1] PCI: imx6: Add force_suspend flag to override L1SS suspend skip
Date: Fri, 10 Apr 2026 17:53:41 -0500 [thread overview]
Message-ID: <20260410225341.GA598942@bhelgaas> (raw)
In-Reply-To: <AS8PR04MB883374CBFD3C97CE54DFB4C48C5BA@AS8PR04MB8833.eurprd04.prod.outlook.com>
On Wed, Apr 08, 2026 at 02:38:35AM +0000, Hongxing Zhu wrote:
> ...
> One additional note regarding NVMe: ASPM (Active State Power Management) is
> disabled locally on i.MX platforms for NVMe devices. This decision was made
> after encountering a system hang issue similar to the one reported by Hans a
> few months ago in his patch listed below.
> https://lore.kernel.org/linux-nvme/20250502032051.920990-1-hans.zhang@cixtech.com/
Where is ASPM disabled for i.MX? I don't see anything in pci-imx6.c.
It doesn't sound architecturally clean to me to disable ASPM based on
whether an NVMe device is involved.
prev parent reply other threads:[~2026-04-10 22:53 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-17 6:12 [PATCH v1] PCI: imx6: Add force_suspend flag to override L1SS suspend skip Richard Zhu
2026-03-17 17:23 ` Bjorn Helgaas
2026-03-18 2:55 ` Hongxing Zhu
2026-03-23 22:08 ` Bjorn Helgaas
2026-03-24 2:01 ` Hongxing Zhu
2026-04-03 17:03 ` mani
2026-04-07 3:31 ` Hongxing Zhu
2026-04-07 7:24 ` mani
2026-04-08 2:38 ` Hongxing Zhu
2026-04-10 22:53 ` Bjorn Helgaas [this message]
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