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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2023-09-08 12:07:47 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2023-10-20 18:18:01 +0300 |
| commit | ce91d793ab8bc55804cdac2536bc33c249e75196 (patch) | |
| tree | 4324fd4134b62028ab66f11dfa84f3674a2911f4 /drivers/thunderbolt/tb_regs.h | |
| parent | 582e70b0d3a412d15389a3c9c07a44791b311715 (diff) | |
| download | linux-ce91d793ab8bc55804cdac2536bc33c249e75196.tar.xz | |
thunderbolt: Set path power management packet support bit for USB4 v2 routers
USB4 v2 spec allows USB4 links that are part of a pass through tunnel
(such as DisplayPort and USB 3.x Gen T) to enter lower CL states, which
provide better power management. For this USB4 v2 routers in their path
config space of lane 0 adapter include a new bit PMPS (PM packet
support) that needs to be set.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt/tb_regs.h')
| -rw-r--r-- | drivers/thunderbolt/tb_regs.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/thunderbolt/tb_regs.h b/drivers/thunderbolt/tb_regs.h index 32839315948b..c14a1c3bc992 100644 --- a/drivers/thunderbolt/tb_regs.h +++ b/drivers/thunderbolt/tb_regs.h @@ -496,7 +496,8 @@ struct tb_regs_hop { * out_port (on the incoming port of the next switch) */ u32 out_port:6; /* next port of the path (on the same switch) */ - u32 initial_credits:8; + u32 initial_credits:7; + u32 pmps:1; u32 unknown1:6; /* set to zero */ bool enable:1; |