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| author | Kurt Lieber <kurt@lieber.org> | 2026-09-24 12:26:37 +0000 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2026-09-28 11:34:48 +0200 |
| commit | 395e9f2967a7ac6898026e8f136c369805dc2fd9 (patch) | |
| tree | cf18ea212978f4bfcd8e220879a0435ca36199bf | |
| parent | 47c73a43c1de51ed54b621d570c5cdf20549c5b7 (diff) | |
| download | linux-stable-395e9f2967a7ac6898026e8f136c369805dc2fd9.tar.gz linux-stable-395e9f2967a7ac6898026e8f136c369805dc2fd9.zip | |
thunderbolt: Disable CL states for the Anker Prime TB5 dock
The Anker Prime TB5 dock identifies itself in the DROM as 01ea:83b5.
Its router config space is an Intel Barlow Ridge 80G hub (8087:5786).
The upstream lane adapter advertises CL0s, CL1, and CL2. With CLx left
enabled, TMU uni-directional LowRes setup fails with -ENOTCONN, the USB3
and DisplayPort tunnels are aborted, and the router reconnects in a loop.
Loading thunderbolt with clx=0 keeps the link up on this machine.
Match the DROM id together with the Barlow Ridge hub id and disable CL
states for this dock only. QUIRK_NO_CLX takes the same early-out as the
module parameter, without disabling CLx for every other router.
Closes: https://lore.kernel.org/linux-usb/SJ0PR15MB4696D491504DB667AA8E0617A3812@SJ0PR15MB4696.namprd15.prod.outlook.com/
Cc: stable@vger.kernel.org
Assisted-by: LLM
Signed-off-by: Kurt Lieber <kurt@lieber.org>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
| -rw-r--r-- | drivers/thunderbolt/quirks.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/thunderbolt/quirks.c b/drivers/thunderbolt/quirks.c index 9f7914ac2..96b7fe038 100644 --- a/drivers/thunderbolt/quirks.c +++ b/drivers/thunderbolt/quirks.c @@ -99,6 +99,9 @@ static const struct tb_quirk tb_quirks[] = { quirk_usb3_maximum_bandwidth }, { 0x8087, PCI_DEVICE_ID_INTEL_BARLOW_RIDGE_HUB_40G_BRIDGE, 0x0000, 0x0000, quirk_usb3_maximum_bandwidth }, + /* CLx is unstable on the Anker Prime TB5 dock (DROM 01ea:83b5) */ + { 0x8087, PCI_DEVICE_ID_INTEL_BARLOW_RIDGE_HUB_80G_BRIDGE, 0x01ea, 0x83b5, + quirk_clx_disable }, /* * Block Runtime PM in DP redrive mode for Intel Barlow Ridge host * controllers. |