clk: mvebu: armada-37xx-periph: add suspend/resume support

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Add suspend/resume hooks in Armada 37xx peripheral clocks driver to
handle S2RAM operations.

One can think that these hooks are useless by comparing the register
values before and after a suspend/resume cycle: they will look the same
anyway. This is because of some scripts executed by the Cortex-M3 core
during ATF operations to init both the clocks and the DDR. These values
could be modified by the BL33 stage or by Linux itself and should be
preserved.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

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Miquel Raynal 2018-07-13 15:44:46 +02:00 • committed by Stephen Boyd

parent d9d95e78cf

commit 5beb1e60db

1 changed files with 43 additions and 0 deletions

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drivers/clk/mvebu/armada-37xx-periph.c

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