thunderbolt: Mention Thunderbolt/USB4 debugging tools in Kconfig

This allows the interested parties to find the Thunderbolt/USB4
debugging tools (aka tbtools) easier in case they need to look at the
information under debugfs entries.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Suggested-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>

diff --git a/drivers/thunderbolt/Kconfig b/drivers/thunderbolt/Kconfig
index 448fd2ec8f6e2e6e263f96722803b69fc36ee9d8..3e01f41e9d662b46da48941a56d493598e0fd114 100644 (file)
--- a/drivers/thunderbolt/Kconfig
+++ b/drivers/thunderbolt/Kconfig
@@ -22,7 +22,11 @@ config USB4_DEBUGFS_WRITE
        bool "Enable write by debugfs to configuration spaces (DANGEROUS)"
        help
          Enables writing to device configuration registers through
-         debugfs interface.
+         debugfs interface. You can use tools such as Thunderbolt/USB4
+         debugging tools to access these registers. For more
+         information see:
+
+           https://github.com/intel/tbtools
 
          Only enable this if you know what you are doing! Never enable
          this for production systems or distro kernels.