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694606c4ef
Some drivers wish to know whether the device that they control can ever lose context, for example, when the device's enclosing powerdomain loses power. They can use this information to determine whether it is necessary to save and restore device context, or whether it can be skipped. Implement the powerdomain portion of this by adding the function pwrdm_can_ever_lose_context(). This is not for use directly from driver code, but instead is intended to be called from driver-subarch integration code (i.e., arch/arm/*omap* code). Currently, the result from this function should be passed into the driver code via struct platform_data, but at some point this should be part of some common or OMAP-specific device code. While here, update file copyrights. Signed-off-by: Paul Walmsley <paul@pwsan.com> |
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