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| author | Akihiro Tsukada <tskd08@gmail.com> | 2019-01-10 12:56:23 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-03-04 14:17:02 +0300 |
| commit | 15d90a6ae98e6d2c68497b44a491cb9efbb98ab1 (patch) | |
| tree | d6bfba0ebc361a937d5bf0045fe24057c21998d7 /Documentation/memory-barriers.txt | |
| parent | c310d1f97c94f68eb4b3860933b2e977c6b0cf5b (diff) | |
| download | linux-15d90a6ae98e6d2c68497b44a491cb9efbb98ab1.tar.xz | |
media: dvb/earth-pt1: fix wrong initialization for demod blocks
earth-pt1 driver was decomposed/restructured by the commit b732539efdba
("media: dvb: earth-pt1: decompose pt1 driver into sub drivers"),
but it introduced a problem regarding concurrent streaming:
Opening a new terrestial stream stops the reception of an existing,
already-opened satellite stream.
The demod IC in earth-pt1 boards contains 2 pairs of terr. and sat. blocks,
supporting 4 concurrent demodulations, and the above problem was because
the config of a terr. block contained whole reset/init of the pair blocks,
thus each open() of a terrestrial frontend wrongly cleared the config of
its peer satellite block of the demod.
This whole/pair reset should be executed earlier and not on each open().
Fixes: b732539efdba ("media: dvb: earth-pt1: decompose pt1 driver into sub drivers")
Signed-off-by: Akihiro Tsukada <tskd08@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'Documentation/memory-barriers.txt')
0 files changed, 0 insertions, 0 deletions