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If CONFIG_PM_GENERIC_DOMAINS is not enabled, then power partitions associated with a device will not be enabled automatically by the PM core when the device is in use. To avoid situations where a device in a power partition is to be used but the partition is not enabled, initialise the power partitions for Tegra early in the boot process and if CONFIG_PM_GENERIC_DOMAINS is not enabled, then power on all partitions defined in the device-tree blob. Note that if CONFIG_PM_GENERIC_DOMAINS is not enabled, after the partitions are turned on, the clocks and resets used as part of the sequence for turning on the partition are released again as they are no longer needed by the PMC driver. Another benefit of this is that this avoids any issues of sharing resets between the PMC driver and other device drivers that may wish to independently control a particular reset. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> |
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