From: Sanath S <Sanath.S@amd.com>
To: <mario.limonciello@amd.com>, <andreas.noever@gmail.com>,
<michael.jamet@intel.com>, <mika.westerberg@linux.intel.com>,
<YehezkelShB@gmail.com>, <linux-usb@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Cc: Sanath S <Sanath.S@amd.com>
Subject: [PATCH 0/2] Add support for downstream port reset(DPR)
Date: Tue, 12 Dec 2023 19:30:45 +0530 [thread overview]
Message-ID: <20231212140047.2021496-1-Sanath.S@amd.com> (raw)
Tunnels created by boot firmware results in incorrect PCI resource
allocation, which results in failure of extending daisy chain.
This series aligns with windows behaviour of performing a teardown of
tunnels and resetting the downstream ports using DPR during the init
sequence.
Sanath S (2):
thunderbolt: Introduce tb_switch_reset_ports(), tb_port_reset() and
usb4_port_reset()
thunderbolt: Teardown tunnels and reset downstream ports created by
boot firmware
drivers/thunderbolt/switch.c | 31 ++++++++
drivers/thunderbolt/tb.c | 137 ++--------------------------------
drivers/thunderbolt/tb.h | 2 +
drivers/thunderbolt/tb_regs.h | 1 +
drivers/thunderbolt/usb4.c | 39 ++++++++++
5 files changed, 80 insertions(+), 130 deletions(-)
--
2.34.1
next reply other threads:[~2023-12-12 14:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-12 14:00 Sanath S [this message]
2023-12-12 14:00 ` [PATCH 1/2] thunderbolt: Introduce tb_switch_reset_ports(), tb_port_reset() and usb4_port_reset() Sanath S
2023-12-12 15:27 ` Mika Westerberg
2023-12-12 15:32 ` Mario Limonciello
2023-12-12 15:41 ` Mika Westerberg
2023-12-12 14:00 ` [PATCH 2/2] thunderbolt: Teardown tunnels and reset downstream ports created by boot firmware Sanath S
2023-12-12 15:10 ` Mika Westerberg
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