xhci: dbc: serialize enabling and disabling dbc

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DbC can be enabled and disabled via sysfs, serialize those
with a mutex to make sure everything is done in the correct
order.

remove xhci_do_dbc_stop() and integrate the register write and
dbc->state setting into xhci_do_stop()

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://patch.msgid.link/20260603091132.1110849-9-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Mathias Nyman 2026-06-03 12:11:25 +03:00 • committed by Greg Kroah-Hartman

parent dc2ff8ba9b

commit 520058b73b

2 changed files with 40 additions and 27 deletions

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66

drivers/usb/host/xhci-dbgcap.c

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1

drivers/usb/host/xhci-dbgcap.h

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