[media] marvell-cam: Make suspend/resume work on MMP2
Somehow I didn't ever quite get around to implementing suspend/resume on the MMP2 platform; this patch fixes that little oversight. A bit of core work was necessary to do the right thing in the s/g DMA case. Signed-off-by: NJonathan Corbet <corbet@lwn.net> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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