MIPS: Alchemy: Threaded carddetect irqs for devboards
This introduces threaded carddetect irqs for the db1200/db1300 boards.
Main benefit is that the broken insertion/ejection interrupt pairs
can now be better supported and debounced in software.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/15287/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>