To make the EV1938 chip work, add a magic bit and an extra delay.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
Tested-by: NTino Schmidt <mailtinoshomepage@gmx.net>
Cc: all 2.6.x <stable@kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>