]> git.hungrycats.org Git - linux/commit
saa7134: fix warm Medion 7134 EEPROM read
authorMaciej S. Szmigiero <mail@maciej.szmigiero.name>
Sat, 2 Jul 2016 23:27:46 +0000 (20:27 -0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 15 Jul 2017 08:14:41 +0000 (10:14 +0200)
commit4f072edd030b7061564f69e0045b5a2c39b04bbd
treea21e32e75a01045da1eb44e1aa4cc43fd9b5be6b
parenta4436f8eee67e2196eb18e827509027171df8932
saa7134: fix warm Medion 7134 EEPROM read

commit 5a91206ff0d0548939f3e85a65fb76b400fb0e89 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>
drivers/media/pci/saa7134/saa7134-i2c.c