Robert Hancock wrote:
This patch fixes some problems with ADMA-capable controllers with regard
to freeze,
thaw and irq_clear libata callbacks. Freeze and thaw didn't switch the
ADMA-specific
interrupts on or off, and more critically the irq_clear function didn't
respect
the restriction that the notifier clear registers for both ports have to
be written
at the same time even when only one port is being cleared. This could
result in
timeouts on one port when error handling (i.e. as a result of hotplug)
occurred on the other port.
As well, this fixes some issues in the interrupt handler: we shouldn't
check any
ADMA status if the port has ADMA switched off because of an ATAPI
device, and
it also checks to see if any ADMA interrupt has been raised even when we
are in
port-register mode.
Signed-off-by: Robert Hancock <hancockr@xxxxxxx>
applied
please properly word-wrap your patch descriptions in the future
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