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authorGeert Uytterhoeven2017-06-21 22:24:15 +0200
committerGeert Uytterhoeven2017-10-20 11:15:33 +0200
commit1f4023cdd1bdbe6cb01d0b2cbd1f46207189e3cf (patch)
tree722b66d177d78224d334f2c170d775fc151a06c0 /drivers/clk/renesas/r8a7795-cpg-mssr.c
parentclk: renesas: cpg-mssr: Restore module clocks during resume (diff)
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clk: renesas: cpg-mssr: Add support to restore core clocks during resume
On R-Car Gen3 systems, PSCI system suspend powers down the SoC, possibly losing clock configuration. Hence add a notifier chain that can be used by core clocks to save/restore clock state during system suspend/resume. The implementation of the actual clock state save/restore operations is clock-specific, and to be registered with the notifier chain in the SoC or family-specific cpg_mssr_info.cpg_clk_register() callback. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Diffstat (limited to 'drivers/clk/renesas/r8a7795-cpg-mssr.c')
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