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| author | Mika Westerberg | 2018-10-11 11:33:08 +0200 |
|---|---|---|
| committer | Mika Westerberg | 2019-04-18 10:18:51 +0200 |
| commit | e879a709de0210802ba14243a168d632cb7ab527 (patch) | |
| tree | 755d8ff601ef92bc67802e9663a76ee156ba371a /drivers/thunderbolt/tb.h | |
| parent | thunderbolt: Move LC specific functionality into a separate file (diff) | |
| download | kernel-qcow2-linux-e879a709de0210802ba14243a168d632cb7ab527.tar.gz kernel-qcow2-linux-e879a709de0210802ba14243a168d632cb7ab527.tar.xz kernel-qcow2-linux-e879a709de0210802ba14243a168d632cb7ab527.zip | |
thunderbolt: Configure lanes when switch is initialized
Thunderbolt 2 devices and beyond need to have additional bits set in
link controller specific registers. This includes two bits in LC_SX_CTRL
that tell the link controller which lane is connected and whether it is
upstream facing or not.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt/tb.h')
| -rw-r--r-- | drivers/thunderbolt/tb.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index e52d39b25266..69e0534224d8 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -465,6 +465,8 @@ int tb_drom_read(struct tb_switch *sw); int tb_drom_read_uid_only(struct tb_switch *sw, u64 *uid); int tb_lc_read_uuid(struct tb_switch *sw, u32 *uuid); +int tb_lc_configure_link(struct tb_switch *sw); +void tb_lc_unconfigure_link(struct tb_switch *sw); static inline int tb_route_length(u64 route) { |