diff options
| author | Niklas Neronin <niklas.neronin@linux.intel.com> | 2025-05-15 16:56:13 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-05-21 12:35:33 +0200 |
| commit | f5bce30ad25e74899c54dda01c80ca6e2e7dc01b (patch) | |
| tree | 8b94ecdc87fcc0b2196c155b24d00b0e43087ea9 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 9f7f74735ac295c9c32ac9152c362414e18d35cc (diff) | |
usb: xhci: guarantee that IMAN register is flushed
Add read call to guarantee that the write to the IMAN register has
been flushed.
xHCI specification 1.2, section 5.5.2.1, Note:
"Most systems have write buffers that minimize overhead, but this may
require a read operation to guarantee that the write has been flushed
from the posted buffer."
Signed-off-by: Niklas Neronin <niklas.neronin@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20250515135621.335595-17-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions