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ARM: imx: Add comments to tzic_enable_waker()

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Add additional comments to the tzic_enable_wake() funciton to
clarify its intended usage.

Signed-off-by: Robert Lee <rob.lee@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Robert Lee 2012-05-21 17:50:25 -05:00 committed by Sascha Hauer
parent 2ce2e4b2b5
commit eee4f40038
1 changed files with 4 additions and 0 deletions
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4
arch/arm/plat-mxc/tzic.c
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@ -190,6 +190,10 @@ void __init tzic_init_irq(void __iomem *irqbase)
* tzic_enable_wake() - enable wakeup interrupt
*
* @return 0 if successful; non-zero otherwise
*
* This function provides an interrupt synchronization point that is required
* by tzic enabled platforms before entering imx specific low power modes (ie,
* those low power modes beyond the WAIT_CLOCKED basic ARM WFI only mode).
*/
int tzic_enable_wake(void)
{