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From: Mario Limonciello <mario.limonciello@amd.com>
To: "Kovacs, Alexander" <Alexander.Kovacs@amd.com>,
	Freeman Z <SHD-ISAC@outlook.com>,
	Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
	"bhelgaas@google.com" <bhelgaas@google.com>,
	"westeri@kernel.org" <westeri@kernel.org>,
	"andreas.noever@gmail.com" <andreas.noever@gmail.com>,
	"YehezkelShB@gmail.com" <yehezkelshb@gmail.com>,
	"rafael@kernel.org" <rafael@kernel.org>,
	"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
	"S, Sanath" <Sanath.S@amd.com>,
	"Natikar, Basavaraj" <Basavaraj.Natikar@amd.com>,
	"Martinez, Juan" <Juan.Martinez@amd.com>,
	"Chia-Lin Kao (AceLan)" <acelan.kao@canonical.com>
Subject: Re: [BUG] PCI/USB4: AMD Phoenix 1022:14ef runtime suspend prevents JHL9480 downstream enumeration
Date: Tue, 6 Oct 2026 09:37:21 -0500	[thread overview]
Message-ID: <051b667e-eaa9-4ad8-86ce-1a326a612284@amd.com> (raw)
In-Reply-To: <DS7PR12MB9550E85CCAED9C8C0D19DCA79C952@DS7PR12MB9550.namprd12.prod.outlook.com>

On 10/6/26 09:33, Kovacs, Alexander wrote:
> AMD General
> 
> Freeman,
> 
> Ok, regarding the 00:03.1 device, I am seeing that it is misnamed in the tables.
> 
> BIOS Bug Report: Thunderbolt/USB4 tunnel port `_DSD` misnamed `XDSD` (00:03.1 / NHI0 path)
> 
> But that more than like does not have any bearing on the root dock enumeration issue...
> 
> I am unable to create a case where I can replicate your fail on my test system yet.
> 
_DSD -> XDSD is a strategy I've seen employed when someone wants to pick 
up reference code but has a difference in their design (for example they 
don't have a retimer connected to the second USB4 router and disabled 
the IP.

I don't know for sure; but my guess this is a strategy to avoid 
technical debt and mistakes when merging future reference code versions.

  reply	other threads:[~2026-10-06 14:37 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-19 12:39 [BUG] PCI/USB4: AMD Phoenix 1022:14ef runtime suspend prevents JHL9480 downstream enumeration Freeman Z
2026-09-21  5:04 ` Mika Westerberg
2026-09-21 15:24   ` Mario Limonciello
2026-09-22 16:40     ` Freeman Z
2026-09-22 17:02       ` Kovacs, Alexander
2026-09-22 17:03         ` Kovacs, Alexander
2026-09-22 19:54       ` Kovacs, Alexander
2026-09-22 20:00         ` Mario Limonciello
2026-09-23 11:51           ` Freeman Z
2026-09-23 12:26             ` Kovacs, Alexander
2026-09-23 12:35               ` Mario Limonciello
2026-09-23 19:37             ` Kovacs, Alexander
2026-09-24  7:18               ` Freeman Z
2026-09-25  5:27                 ` Mika Westerberg
2026-09-25  9:38                   ` Freeman Z
2026-09-25 11:31                     ` Freeman Z
2026-09-25 11:50                       ` Mika Westerberg
2026-09-25 14:10                         ` Mario Limonciello
2026-09-25 15:12                           ` Freeman Z
2026-09-25 15:24                             ` Mario Limonciello
2026-09-25 15:48                               ` Freeman Z
2026-10-01 14:54                                 ` Kovacs, Alexander
2026-10-01 18:28                                   ` Freeman Z
2026-10-05 14:35                                     ` Kovacs, Alexander
2026-10-05 15:39                                       ` Freeman Z
2026-10-05 17:01                                         ` Kovacs, Alexander
2026-10-05 17:10                                           ` Freeman Z
2026-10-06 14:33                                             ` Kovacs, Alexander
2026-10-06 14:37                                               ` Mario Limonciello [this message]
2026-10-06 16:33                                                 ` Freeman Z
2026-10-06 17:12                                                   ` Kovacs, Alexander
2026-10-06 18:45                                                     ` Freeman Z
2026-10-06 19:18                                                       ` Kovacs, Alexander
2026-10-06 19:33                                                         ` Freeman Z
2026-10-06 19:53                                                         ` Kovacs, Alexander
2026-10-06 21:04                                                           ` Freeman Z
2026-10-09 12:47                                                             ` Kovacs, Alexander
2026-10-09 13:02                                                               ` Freeman Z
2026-10-09 13:39                                                                 ` Kovacs, Alexander
2026-10-09 14:54                                                                   ` Freeman Z
2026-10-09 20:28                                                                     ` Kovacs, Alexander
2026-09-25 14:03                       ` Kovacs, Alexander

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