This is a note to let you know that I've just added the patch titled
Revert "xhci: Loosen RPM as default policy to cover for AMD xHC 1.1"
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
revert-xhci-loosen-rpm-as-default-policy-to-cover-for-amd-xhc-1.1.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 24be0b3c40594a14b65141ced486ae327398faf8 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
Date: Tue, 5 Dec 2023 11:05:48 +0200
Subject: Revert "xhci: Loosen RPM as default policy to cover for AMD xHC 1.1"
From: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
commit 24be0b3c40594a14b65141ced486ae327398faf8 upstream.
This reverts commit 4baf1218150985ee3ab0a27220456a1f027ea0ac.
Enabling runtime pm as default for all AMD xHC 1.1 controllers caused
regression. An initial attempt to fix those was done in commit a5d6264b638e
("xhci: Enable RPM on controllers that support low-power states") but new
issues are still seen.
Revert this to get those AMD xHC 1.1 systems working
This patch went to stable an needs to be reverted from there as well.
Fixes: 4baf12181509 ("xhci: Loosen RPM as default policy to cover for AMD xHC 1.1")
Link: https://lore.kernel.org/linux-usb/55c50bf5-bffb-454e-906e-4408c591cb63@xxxxxxxxxxxxx
Cc: Mario Limonciello <mario.limonciello@xxxxxxx>
Cc: Basavaraj Natikar <Basavaraj.Natikar@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
Reviewed-by: Mario Limonciello <mario.limonciello@xxxxxxx>
Link: https://lore.kernel.org/r/20231205090548.1377667-1-mathias.nyman@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/xhci-pci.c | 2 --
1 file changed, 2 deletions(-)
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -535,8 +535,6 @@ static void xhci_pci_quirks(struct devic
/* xHC spec requires PCI devices to support D3hot and D3cold */
if (xhci->hci_version >= 0x120)
xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
- else if (pdev->vendor == PCI_VENDOR_ID_AMD && xhci->hci_version >= 0x110)
- xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
if (xhci->quirks & XHCI_RESET_ON_RESUME)
xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
Patches currently in stable-queue which might be from mathias.nyman@xxxxxxxxxxxxxxx are
queue-6.6/revert-xhci-loosen-rpm-as-default-policy-to-cover-for-amd-xhc-1.1.patch
