The current (empty) system sleep callbacks rely on the PM core to force
a runtime resume to reinitialize the DMAC registers during system
resume. Without a reinitialization, e.g. SCIF DMA will hang silently
after a system resume on R-Car Gen3.
Make this explicit by using pm_runtime_force_{suspend,resume}() as the
system sleep callbacks instead. Use SET_LATE_SYSTEM_SLEEP_PM_OPS() as
DMA engines must be initialized before all DMA slave devices.
Fixes:
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.. | ||
Kconfig | ||
Makefile | ||
rcar-dmac.c | ||
shdma-arm.h | ||
shdma-base.c | ||
shdma-of.c | ||
shdma-r8a73a4.c | ||
shdma.h | ||
shdmac.c | ||
sudmac.c | ||
usb-dmac.c |