diff options
| author | Marcin Bachry <hegel666@gmail.com> | 2021-07-21 22:58:58 -0400 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2021-08-19 10:21:53 -0500 |
| commit | e0bff43220925b7e527f9d3bc9f5c624177c959e (patch) | |
| tree | 49d1bbb8d2ca55d2e5cd3e3900b7aa223f11db43 /net/ncsi/ncsi-manage.c | |
| parent | e647eff57466c8cf7547532d6b26166b9b17f341 (diff) | |
PCI: Increase D3 delay for AMD Renoir/Cezanne XHCI
The Renoir XHCI controller apparently doesn't resume reliably with the
standard D3hot-to-D0 delay. Increase it to 20ms.
[Alex: I talked to the AMD USB hardware team and the AMD Windows team and
they are not aware of any HW errata or specific issues. The HW works fine
in Windows. I was told Windows uses a rather generous default delay of
100ms for PCI state transitions.]
Link: https://lore.kernel.org/r/20210722025858.220064-1-alexander.deucher@amd.com
Signed-off-by: Marcin Bachry <hegel666@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Prike Liang <prike.liang@amd.com>
Cc: Shyam Sundar S K <shyam-sundar.s-k@amd.com>
Diffstat (limited to 'net/ncsi/ncsi-manage.c')
0 files changed, 0 insertions, 0 deletions