• Sudeep KarkadaNagesha's avatar
    of: move of_get_cpu_node implementation to DT core library · 183912d3
    Sudeep KarkadaNagesha authored
    This patch moves the generalized implementation of of_get_cpu_node from
    PowerPC to DT core library, thereby adding support for retrieving cpu
    node for a given logical cpu index on any architecture.
    
    The CPU subsystem can now use this function to assign of_node in the
    cpu device while registering CPUs.
    
    It is recommended to use these helper function only in pre-SMP/early
    initialisation stages to retrieve CPU device node pointers in logical
    ordering. Once the cpu devices are registered, it can be retrieved easily
    from cpu device of_node which avoids unnecessary parsing and matching.
    
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Grant Likely <grant.likely@linaro.org>
    Acked-by: default avatarRob Herring <rob.herring@calxeda.com>
    Signed-off-by: default avatarSudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
    183912d3
base.c 47.9 KB