firewire: ohci: cache the context run bit

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The DMA context run control bit is entirely controlled by software, so
it is safe to cache it.  This allows the driver to avoid doing an
additional MMIO read when queueing an AT packet.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

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Clemens Ladisch 2010-12-24 14:42:46 +01:00 • committed by Stefan Richter

parent 78dec56d6a

commit 386a4153a2

1 changed files with 4 additions and 4 deletions

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drivers/firewire/ohci.c

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