firmware: add function to find firmware by devicetree node
Allows to get the firmware manager using a phandle from the devicetree.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
1 parent ca7b8f8 commit 32559cecae49998091dd5645b386ed917f5c468d
@Michael Tretter Michael Tretter authored on 13 Sep 2019
Sascha Hauer committed on 16 Sep 2019
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common/firmware.c
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include/firmware.h