[media] saa7164: use an MSI interrupt when available

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Enhances driver to use an MSI interrupt when available.

Adds the module option 'enable_msi' (type bool) which by default is
enabled. Can be set to 'N' to disable.

Fixes (or can reduce the occurrence of) a crash which is most commonly
reported when both digital tuners of the saa7164 chip is in use. A
reported example can be found here:
http://permalink.gmane.org/gmane.linux.drivers.video-input-infrastructure/83948

Reviewed-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Brendan McGrath <redmcg@redmandi.dyndns.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

...

This commit is contained in:

Brendan McGrath 2015-04-10 03:39:22 -03:00 • committed by Mauro Carvalho Chehab

parent 4c12adad26

commit 77978089dd

2 changed files with 60 additions and 7 deletions

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66

drivers/media/pci/saa7164/saa7164-core.c

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1

drivers/media/pci/saa7164/saa7164.h

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