Hi Tobias, On 11/22/18 6:24 PM, Tobias Jakobi wrote: > Hey Lukasz, > > just wanted to say hi and thanks for picking this up. Sadly my work no longer > permits me to spend time working on the kernel. Fingers crossed for your current work and maybe for come back to kernel development in the future! > > Anyway, great that this issue finally gets solved! :) Thank you for your idea and development of these patches in v1 and v2. This functionality is really needed. Regards, Lukasz > > With best wishes, > Tobias > > > Lukasz Luba wrote: >> Hi all, >> >> This patch set aims to address the issue with devfreq devices' frequency >> during suspend/resume. It extends suspend/resume by calls to Devfreq >> framework. In the devfreq framework there is a small refactoring to avoid >> code duplication in changging frequency (patch 2) and there are extensions >> for suspending devices. >> >> It has been tested on Odroid u3 with Exynos 4412. >> >> The patch set draws on Tobias Jakobi's work posted ~2 years ago, who tried >> to solve issue with devfreq device's frequency during suspend/resume. >> During the discussion on LKML some corner cases and comments appeared >> related to the design. This patch set address them keeping in mind >> suggestions from Chanwoo Choi. >> Tobias's paches: >> https://www.spinics.net/lists/linux-samsung-soc/msg56602.html >> >> Regards, >> Lukasz Luba >> >> Lukasz Luba (6): >> devfreq: add basic fileds supporting suspend functionality >> devfreq: refactor set_target frequency function >> devfreq: add support for suspend/resume of a devfreq device >> devfreq: add devfreq_suspend/resume() functions >> drivers: power: suspend: call devfreq suspend/resume >> arm: dts: exynos4: set opp-suspend for DMC and leftbus >> >> arch/arm/boot/dts/exynos4210.dtsi | 2 + >> arch/arm/boot/dts/exynos4412.dtsi | 2 + >> drivers/base/power/main.c | 3 + >> drivers/devfreq/devfreq.c | 159 ++++++++++++++++++++++++++++++-------- >> include/linux/devfreq.h | 11 +++ >> 5 files changed, 146 insertions(+), 31 deletions(-) >> > > >
