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2012-02-10ARM: S3C64XX: Reduce residency requirement for cpuidle WFI modeMark Brown
Entering and leaving WFI is really cheap so there's no reason to have much of a residency requirement for the state. Lower it to 1ms. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-01-20ARM: S3C64XX: Add basic cpuidle driverMark Brown
Add a very basic cpuidle driver for S3C64xx which merely drives the CPU into IDLE mode. We could do this with pm_idle but the more modern idiom is to use cpuidle and the intention is to go further and support STOP and DEEP-STOP states in conjunction with the pm_domain framework. The actual state entry code was lifted from Tomasz Figa's work on spica. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>