Staging: ipack/bridges/tpci200: Protect device registers with spinlock.
Some of the device registers are accessed from both interrupt and
non-interrupt context. To ensure proper read-modify-write modification
of these registers we can not use the "global" tpci200 mutex. Instead
a spin-lock is used.
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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