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Benjamin Herrenschmidt authored
pmac_zilog wasn't properly updating port->timeout, thus broke with serial console. I'm not sure if that timeout thing was added recently or not, since the driver used to work fine. This patch fixes that, and adds some proper SYSRQ support. By default, BREAK is used for sysrq, though some Apple zilog's seem to have non-working BREAK detection logic, thus the driver has a #define option you can manually enable when debugging to do SYSRQ with ctrl-O instead (like pSeries virtual consoles). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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