i3c: master: svc: fix i3c suspend/resume issue

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When system suspends, if i3c module is powered down, register
value will lose.
Need to save the key registers before system suspend.
So save these registers value in runtime pm suspend, and restore them
if these register's value is different with the saved values
when runtime pm resume.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20230517033030.3068085-1-xiaoning.wang@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

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Clark Wang 2023-05-17 11:30:28 +08:00 • committed by Alexandre Belloni

parent ac9a78681b

commit 1c5ee2a77b

1 changed files with 26 additions and 0 deletions

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drivers/i3c/master/svc-i3c-master.c

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