On Thu, Jul 28, 2011 at 3:10 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: > On Friday, July 15, 2011, MyungJoo Ham wrote: >> For a usage example, please look at >> http://git.infradead.org/users/kmpark/linux-2.6-samsung/shortlog/refs/heads/devfreq >> >> In the above git tree, DVFS (dynamic voltage and frequency scaling) mechanism >> is applied to the memory bus of Exynos4210 for Exynos4210-NURI boards. >> In the example, the LPDDR2 DRAM frequency changes between 133, 266, and 400MHz >> and other related clocks simply follow the determined DDR RAM clock. >> >> The DEVFREQ driver for Exynos4210 memory bus is at >> /arch/arm/mach-exynos4/devfreq_bus.c in the git tree. >> >> MyungJoo Ham (3): >> PM: Introduce DEVFREQ: generic DVFS framework with device-specific >> OPPs >> PM / DEVFREQ: add example governors >> PM / DEVFREQ: add sysfs interface (including user tickling) > > OK, I'm going to take the patches for 3.2. Have any other platforms signed up to use this mechanism to manage their peripheral DVFS? Thanks, Mike > Thanks, > Rafael > > >> Documentation/ABI/testing/sysfs-devices-power | 50 ++ >> Documentation/ABI/testing/sysfs-power | 43 ++ >> drivers/base/power/Makefile | 1 + >> drivers/base/power/devfreq.c | 714 +++++++++++++++++++++++++ >> drivers/base/power/opp.c | 9 + >> include/linux/devfreq.h | 119 ++++ >> kernel/power/Kconfig | 34 ++ >> 7 files changed, 970 insertions(+), 0 deletions(-) >> create mode 100644 drivers/base/power/devfreq.c >> create mode 100644 include/linux/devfreq.h >> >> > > _______________________________________________ > linux-pm mailing list > linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx > https://lists.linux-foundation.org/mailman/listinfo/linux-pm > _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
