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[media] si2157: detect if firmware is running
authorAntti Palosaari <crope@iki.fi>
Mon, 8 Feb 2016 11:51:16 +0000 (09:51 -0200)
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>
Fri, 6 May 2016 13:07:45 +0000 (10:07 -0300)
commit78bab93026ab95b6c8b9e8770ef7089f7d40b2d5
tree1e75706110ef01fe835ad4990c1a0775c6cc13b7tree
parent8a73faab0a6b6c620c62f24fc991d0ad653b848bcommit | diff
[media] si2157: detect if firmware is running

Detect if firmware is running run-time and download / start it only
when needed. Detection is done by reading IF frequency value.
Garbage value is returned by firmware when it is not running,
otherwise correct value is returned.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
drivers/media/tuners/si2157.c diff | blob | blame | history
drivers/media/tuners/si2157_priv.h diff | blob | blame | history
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