saa7134: fix warm Medion 7134 EEPROM read

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commit 5a91206ff0 upstream.

When saa7134 module driving a Medion 7134 card is reloaded reads of this
card EEPROM (required for automatic detection of tuner model) will be
corrupted due to I2C gate in DVB-T demod being left closed.
This sometimes also happens on first saa7134 module load after a warm
reboot.

Fix this by opening this I2C gate before doing EEPROM read during i2c
initialization.

Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Cc: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Maciej S. Szmigiero 2016-07-02 20:27:46 -03:00 • committed by Greg Kroah-Hartman

parent 81ba752aa4

commit fb2dc28cf2

1 changed files with 31 additions and 0 deletions

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drivers/media/pci/saa7134/saa7134-i2c.c

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