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authorAlexandre Courbot <acourbot@nvidia.com>2014-02-07 13:35:04 +0900
committerStephen Warren <swarren@nvidia.com>2014-02-18 13:46:42 -0700
commitcd42145cd993fa1a7426d63648fc7e3423fb2e1d (patch)
tree889688f5cce091552061c60c6cea98d613779fbc
parent5b154f18086f11096567aad55543af4bc44a0aa0 (diff)
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>
-rw-r--r--arch/arm/include/asm/firmware.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/include/asm/firmware.h b/arch/arm/include/asm/firmware.h
index 15631300c238..2c9f10df7568 100644
--- a/arch/arm/include/asm/firmware.h
+++ b/arch/arm/include/asm/firmware.h
@@ -22,6 +22,10 @@
*/
struct firmware_ops {
/*
+ * Inform the firmware we intend to enter CPU idle mode
+ */
+ int (*prepare_idle)(void);
+ /*
* Enters CPU idle mode
*/
int (*do_idle)(void);