ARM: firmware: add prepare_idle() operation
Some firmwares do not put the CPU into idle mode themselves, but still need to be informed that the CPU is about to enter idle mode before this happens. Add a prepare_idle() operation to the firmware_ops structure to handle such cases. Signed-off-by:Alexandre Courbot <acourbot@nvidia.com> Acked-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
Stephen Warren <swarren@nvidia.com>
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