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From: Mario Limonciello <mario.limonciello@amd.com>
To: Mika Westerberg <mika.westerberg@linux.intel.com>,
<linux-usb@vger.kernel.org>
CC: Andreas Noever <andreas.noever@gmail.com>,
Michael Jamet <michael.jamet@intel.com>,
Yehezkel Bernat <YehezkelShB@gmail.com>, <sanju.mehta@amd.com>,
Mario Limonciello <mario.limonciello@amd.com>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH 0/2] Fix some hotplug event issues
Date: Wed, 21 Sep 2022 09:54:31 -0500
Message-ID: <20220921145434.21659-1-mario.limonciello@amd.com>
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|
| Series | Fix some hotplug event issues | expand |
On AMD Pink Sardine it's been observed that if another CM has run before the Linux CM that some registers may not match expectations which leads to a non-functional hotplug for PCIe devices. Explicitly set these registers that have been observed to cause problems with hotplug to the defaults of the USB4 spec. Mario Limonciello (2): thunderbolt: Explicitly reset plug events delay back to USB4 spec value thunderbolt: Explicitly enable lane adapter hotplug events at startup drivers/thunderbolt/switch.c | 5 +++++ drivers/thunderbolt/tb.h | 1 + drivers/thunderbolt/tb_regs.h | 1 + drivers/thunderbolt/usb4.c | 19 +++++++++++++++++++ 4 files changed, 26 insertions(+)