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Bjorn Helgaas 5b40a5080c PCI/ASPM: Avoid L0s and L1 on Freescale [1957:0451] Root Ports
Christian reported that f3ac2ff148 ("PCI/ASPM: Enable all ClockPM and
ASPM states for devicetree platforms") broke booting on the A-EON X5000.

Override the L0s and L1 Support advertised in Link Capabilities by the
X5000 Root Ports ([1957:0451]) so we don't try to enable those states.

Fixes: f3ac2ff148 ("PCI/ASPM: Enable all ClockPM and ASPM states for devicetree platforms")
Fixes: df5192d9bb ("PCI/ASPM: Enable only L0s and L1 for devicetree platforms")
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Link: https://lore.kernel.org/r/db5c95a1-cf3e-46f9-8045-a1b04908051a@xenosoft.de
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Shawn Lin <shawn.lin@rock-chips.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Link: https://patch.msgid.link/20251110222929.2140564-5-helgaas@kernel.org
2025-11-12 18:51:39 -06:00
2022-09-28 09:02:20 +02:00
2025-02-19 14:53:27 -07:00
2025-10-12 13:42:36 -07:00
2024-03-18 03:36:32 -06:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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