• Russell King's avatar
    ARM: pm: allow suspend finisher to return error codes · 29cb3cd2
    Russell King authored
    There are SoCs where attempting to enter a low power state is ignored,
    and the CPU continues executing instructions with all state preserved.
    It is over-complex at that point to disable the MMU just to call the
    resume path.
    
    Instead, allow the suspend finisher to return error codes to abort
    suspend in this circumstance, where the cpu_suspend internals will then
    unwind the saved state on the stack.  Also omit the tlb flush as no
    changes to the page tables will have happened.
    Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
    29cb3cd2
pm.c 13.9 KB