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3fe95742af
linux/drivers/thunderbolt
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Mika Westerberg 3fe95742af thunderbolt: Do not touch CL state configuration during discovery 
If the boot firmware has already established tunnels, especially ones
that have special requirements from the link such as DisplayPort, we
should not blindly enable CL states (nor change the TMU configuration).
Otherwise the existing tunnels may not work as expected.

For this reason, skip the CL state enabling when we go over the existing
topology. This will also keep the TMU settings untouched because we do
not change the TMU configuration when CL states are not enabled.

Reported-by: Koba Ko <koba.ko@canonical.com>
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/7831
Cc: stable@vger.kernel.org # v6.0+
Acked-By: Yehezkel Bernat <YehezkelShB@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2023-05-29 12:49:16 +03:00
..
acpi.c thunderbolt: Get rid of redundant 'else' 2023-03-29 11:05:05 +03:00
cap.c thunderbolt: cap: Fix kernel-doc formatting issue 2021-01-28 12:33:18 +03:00
ctl.c thunderbolt: Get rid of redundant 'else' 2023-03-29 11:05:05 +03:00
ctl.h thunderbolt: Add support for DisplayPort bandwidth allocation mode 2023-01-17 11:37:16 +02:00
debugfs.c thunderbolt: Fix memory leak in margining 2023-03-13 11:54:14 +02:00
dma_port.c thunderbolt: Use generic tb_nvm_[read|write]_data() for Thunderbolt 2/3 devices 2021-05-31 14:37:54 +03:00
dma_port.h
dma_test.c thunderbolt: dma_test: Use correct value for absent rings when creating paths 2023-05-22 08:57:50 +03:00
domain.c thunderbolt: Convert to use sysfs_emit()/sysfs_emit_at() APIs 2022-09-24 09:22:01 +03:00
eeprom.c thunderbolt: Refactor DROM reading 2023-03-14 16:15:45 +02:00
icm.c thunderbolt: Changes for v6.1 merge window 2022-09-30 13:44:59 +02:00
Kconfig thunderbolt: Changes for v6.1 merge window 2022-09-30 13:44:59 +02:00
lc.c thunderbolt: Add internal xHCI connect flows for Thunderbolt 3 devices 2022-02-02 13:56:51 +03:00
Makefile thunderbolt: build kunit tests without structleak plugin 2021-10-06 17:53:49 -06:00
nhi_ops.c
nhi_regs.h thunderbolt: Clear registers properly when auto clear isn't in use 2023-05-09 09:39:03 +03:00
nhi.c thunderbolt: Clear registers properly when auto clear isn't in use 2023-05-09 09:39:03 +03:00
nhi.h thunderbolt: Changes for v6.1 merge window 2022-09-30 13:44:59 +02:00
nvm.c thunderbolt: Add support for ASMedia NVM image format 2022-09-07 09:06:51 +03:00
path.c thunderbolt: Dump path config space entries during discovery 2022-04-19 10:26:13 +03:00
property.c thunderbolt: Add tb_property_copy_dir() 2021-03-18 18:25:31 +03:00
quirks.c thunderbolt: Limit USB3 bandwidth of certain Intel USB4 host routers 2023-03-13 11:54:31 +02:00
retimer.c thunderbolt: Add missing UNSET_INBOUND_SBTX for retimer access 2023-03-13 11:54:20 +02:00
sb_regs.h thunderbolt: Add missing UNSET_INBOUND_SBTX for retimer access 2023-03-13 11:54:20 +02:00
switch.c thunderbolt: Changes for v6.4 merge window 2023-04-19 11:42:44 +02:00
tb_msgs.h thunderbolt: Add support for DisplayPort bandwidth allocation mode 2023-01-17 11:37:16 +02:00
tb_regs.h thunderbolt: Add functions to support DisplayPort bandwidth allocation mode 2023-01-17 11:37:05 +02:00
tb.c thunderbolt: Do not touch CL state configuration during discovery 2023-05-29 12:49:16 +03:00
tb.h thunderbolt: Limit USB3 bandwidth of certain Intel USB4 host routers 2023-03-13 11:54:31 +02:00
test.c thunderbolt: test: Use kunit_test_suite() macro 2022-07-11 17:13:21 -06:00
tmu.c thunderbolt: Change TMU mode to HiFi uni-directional once DisplayPort tunneled 2022-06-06 12:24:56 +03:00
tunnel.c thunderbolt: Increase DisplayPort Connection Manager handshake timeout 2023-05-29 12:49:00 +03:00
tunnel.h thunderbolt: Add missing kernel-doc comment to tb_tunnel_maximum_bandwidth() 2023-01-27 08:25:59 +02:00
usb4_port.c thunderbolt: Add wake on connect/disconnect on USB4 ports 2022-11-07 14:36:47 +02:00
usb4.c thunderbolt: Changes for v6.4 merge window 2023-04-19 11:42:44 +02:00
xdomain.c thunderbolt: Get rid of redundant 'else' 2023-03-29 11:05:05 +03:00