On Sun, Mar 12, 2017 at 12:21:45PM -0700, Steve Longerbeam wrote:

There's actually nothing preventing userland from disabling a link
multiple times, and imx_media_link_notify() complies, and so
csi_s_power(OFF) gets called multiple times, and so that WARN_ON()
in there is silly, I borrowed this from other MC driver examples,
but it makes no sense to me, I'll remove it and prevent the power
count from going negative.

Hmm.  So what happens if one of the CSI's links is enabled, and we
disable a different link from the CSI several times?  Doesn't that
mean the power count will go to zero despite there being an enabled
link?

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