media: ddbridge: Kconfig option to control the MSI modparam default

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It is known that MSI interrupts - while working quite well so far - can
still cause issues on some hardware platforms (causing I2C timeouts due
to unhandled interrupts). The msi variable/option is set to 1 by default.
So, add a Kconfig option prefixed with "EXPERIMENTAL" that will control
the default value of that modparam, defaulting to off for a better
user experience and (guaranteed) stable operation "per default".

Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <r.scobie@clear.net.nz>
Tested-by: Jasmin Jessich <jasmin@anw.at>
Tested-by: Dietmar Spingler <d_spingler@freenet.de>
Tested-by: Manfred Knick <Manfred.Knick@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

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Daniel Scheller 2017-08-12 07:56:01 -04:00 • committed by Mauro Carvalho Chehab

parent fc3fb43e41

commit adaf4df705

2 changed files with 24 additions and 2 deletions

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15

drivers/media/pci/ddbridge/Kconfig

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11

drivers/media/pci/ddbridge/ddbridge-main.c

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