tree b8a5c017e168d87f91668b5cab89c7df56dcda58
parent b722dbf176b67c75fe0f5a6b1b31f5ea8aa6117d
author Mark Brown <broonie@opensource.wolfsonmicro.com> 1306923489 +0000
committer David S. Miller <davem@davemloft.net> 1306988535 -0700

net: dm9000: Get the chip in a known good state before enabling interrupts

Currently the DM9000 driver requests the primary interrupt before it
resets the chip and puts it into a known good state. This means that if
the chip is asserting interrupt for some reason we can end up with a
screaming IRQ that the interrupt handler is unable to deal with. Avoid
this by only requesting the interrupt after we've reset the chip so we
know what state it's in.

This started manifesting itself on one of my boards in the past month or
so, I suspect as a result of some core infrastructure changes removing
some form of mitigation against bad behaviour here, even when things boot
it seems that the new code brings the interface up more quickly.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: David S. Miller <davem@davemloft.net>