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-rw-r--r--drivers/thunderbolt/Kconfig42
1 files changed, 36 insertions, 6 deletions
diff --git a/drivers/thunderbolt/Kconfig b/drivers/thunderbolt/Kconfig
index fd9adca898ff..4bfec8a28064 100644
--- a/drivers/thunderbolt/Kconfig
+++ b/drivers/thunderbolt/Kconfig
@@ -1,17 +1,47 @@
# SPDX-License-Identifier: GPL-2.0-only
-menuconfig THUNDERBOLT
- tristate "Thunderbolt support"
+menuconfig USB4
+ tristate "Unified support for USB4 and Thunderbolt"
depends on PCI
- depends on X86 || COMPILE_TEST
select APPLE_PROPERTIES if EFI_STUB && X86
select CRC32
select CRYPTO
select CRYPTO_HASH
select NVMEM
help
- Thunderbolt Controller driver. This driver is required if you
- want to hotplug Thunderbolt devices on Apple hardware or on PCs
- with Intel Falcon Ridge or newer.
+ USB4 and Thunderbolt driver. USB4 is the public specification
+ based on the Thunderbolt 3 protocol. This driver is required if
+ you want to hotplug Thunderbolt and USB4 compliant devices on
+ Apple hardware or on PCs with Intel Falcon Ridge or newer.
To compile this driver a module, choose M here. The module will be
called thunderbolt.
+
+if USB4
+
+config USB4_DEBUGFS_WRITE
+ bool "Enable write by debugfs to configuration spaces (DANGEROUS)"
+ help
+ Enables writing to device configuration registers through
+ debugfs interface.
+
+ Only enable this if you know what you are doing! Never enable
+ this for production systems or distro kernels.
+
+config USB4_KUNIT_TEST
+ bool "KUnit tests"
+ depends on KUNIT=y
+
+config USB4_DMA_TEST
+ tristate "DMA traffic test driver"
+ depends on DEBUG_FS
+ help
+ This allows sending and receiving DMA traffic through loopback
+ connection. Loopback connection can be done by either special
+ dongle that has TX/RX lines crossed, or by simply connecting a
+ cable back to the host. Only enable this if you know what you
+ are doing. Normal users and distro kernels should say N here.
+
+ To compile this driver a module, choose M here. The module will be
+ called thunderbolt_dma_test.
+
+endif # USB4