Re: [PATCH v8 0/5] DEVFREQ, DVFS Framework for Non-CPU Devices.
From: MyungJoo Ham <myungjoo.ham@samsung.com>
Date: 2011-08-31 03:59:47
On Wed, Aug 31, 2011 at 8:32 AM, Kevin Hilman [off-list ref] wrote:
MyungJoo Ham [off-list ref] writes:quoted
The patchset revision v8 has minor updates since v7 and v6. - Allow governors to have their own sysfs interface and init/exit callbacks. The patches 1/5 (OPP notifier) and 2/5 (DEVFREQ core) have no changes since v7. There has been reordering between "add common sysfs interfaces" patch and "add basic governors" (3/5 and 5/5) "add internal interfaces for governors (4/5)" patch has been newly introduced at v8 patchset. 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 /drivers/devfreq/exynos4210_memorybus.c in the git tree.Minor nit: you continue to use DEVFREQ (all caps) throughout subjects and changelogs etc. when it should be called devfreq since it's not an acryonym. Kevin
Fine, I'll regard devfreq as a common noun. Cheers, MyungJoo -- MyungJoo Ham (함명주), Ph.D. Mobile Software Platform Lab, Digital Media and Communications (DMC) Business Samsung Electronics cell: 82-10-6714-2858 _______________________________________________ linux-pm mailing list linux-pm@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/linux-pm