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ARM: firmware: add prepare_idle() operation

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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>
This commit is contained in:
Alexandre Courbot 2014-02-07 13:35:04 +09:00 committed by Stephen Warren
parent 5b154f1808
commit cd42145cd9
1 changed files with 4 additions and 0 deletions
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4
arch/arm/include/asm/firmware.h
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@ -21,6 +21,10 @@
* A filled up structure can be registered with register_firmware_ops().
*/
struct firmware_ops {
/*
* Inform the firmware we intend to enter CPU idle mode
*/
int (*prepare_idle)(void);
/*
* Enters CPU idle mode
*/