From: Bjorn Helgaas <helgaas@kernel.org>
To: "Francisco Beltrán Millalén" <fbeltranmillalen@gmail.com>
Cc: mika.westerberg@linux.intel.com, andreas.noever@gmail.com,
westeri@kernel.org, YehezkelShB@gmail.com,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
bhelgaas@google.com, linux-pci@vger.kernel.org, lukas@wunner.de,
d@rrell.co
Subject: Re: [PATCH v4] thunderbolt: Call SXFP() on Apple systems with Alpine Ridge when suspending
Date: Tue, 3 Nov 2026 12:26:14 -0600 [thread overview]
Message-ID: <20261103182614.GA1121552@bhelgaas> (raw)
In-Reply-To: <20261103115104.13845-1-fbeltranmillalen@gmail.com>
On Tue, Nov 03, 2026 at 08:51:04AM -0300, Francisco Beltrán Millalén wrote:
> On Apple systems with Alpine Ridge, suspending to RAM with a device
> connected to a Type-C port leaves the PCIe link to the upstream port of
> the controller down on resume, and the ports are lost until reboot.
> Calling the SXFP(0) ACPI method under the NHI before entering sleep
> avoids that.
The subject line basically restates the C code, which doesn't really
motivate the change. Is there something we can say about why we do
this or what problem it solves?
prev parent reply other threads:[~2026-11-03 18:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-03 11:51 [PATCH v4] thunderbolt: Call SXFP() on Apple systems with Alpine Ridge when suspending Francisco Beltrán Millalén
2026-11-03 12:02 ` sashiko-bot
2026-11-03 18:26 ` Bjorn Helgaas [this message]
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