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authorAndreas Noever <andreas.noever@gmail.com>2014-06-04 00:03:58 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-06-20 01:04:52 +0400
commit16603153666d22df544ae9f9b3764fd18da28eeb (patch)
treed28b3a560c98c6010196f856520f983efa34e4a8 /drivers/thunderbolt/Kconfig
parent7171511eaec5bf23fb06078f59784a3a0626b38f (diff)
downloadlinux-16603153666d22df544ae9f9b3764fd18da28eeb.tar.xz
thunderbolt: Add initial cactus ridge NHI support
Thunderbolt hotplug is supposed to be handled by the firmware. But Apple decided to implement thunderbolt at the operating system level. The firmare only initializes thunderbolt devices that are present at boot time. This driver enables hotplug of thunderbolt of non-chained thunderbolt devices on Apple systems with a cactus ridge controller. This first patch adds the Kconfig file as well the parts of the driver which talk directly to the hardware (that is pci device setup, interrupt handling and RX/TX ring management). Signed-off-by: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/thunderbolt/Kconfig')
-rw-r--r--drivers/thunderbolt/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/thunderbolt/Kconfig b/drivers/thunderbolt/Kconfig
new file mode 100644
index 000000000000..3a2552962d06
--- /dev/null
+++ b/drivers/thunderbolt/Kconfig
@@ -0,0 +1,12 @@
+menuconfig THUNDERBOLT
+ tristate "Thunderbolt support for Apple devices"
+ default no
+ help
+ Cactus Ridge Thunderbolt Controller driver
+ This driver is required if you want to hotplug Thunderbolt devices on
+ Apple hardware.
+
+ Device chaining is currently not supported.
+
+ To compile this driver a module, choose M here. The module will be
+ called thunderbolt.