On Thursday, December 7, 2017 2:56:09 PM CET Gregory CLEMENT wrote: > Hi, > > This is the second version of a series adding the CPU Frequency > support on Armada 37xx using DVFS. It is based on the initial work of > Evan Wang and Victor Gu. > > The main change since the first version was a bug fixed in the > "cpufreq: Add DVFS support for Armada 37xx" patch which was preventing > to register the opp. An other noticeable change is the 4th patch which > is new adding the use of dev_pm_opp_remove and removing an comment > became wrong. The other changes are described in the change log. > > DVFS control is done by a set of registers from the North Bridge Power > Management block. The binding for this block is documented in patch 1. > > While adding a new cpufreq driver I found that the Kconfig and > Makefile were no more in order, so it is fixed by patch 2 and 3. > > The 5th patch is just about updating the MAINTAINERS file with the new > driver. > > The next patch is the real purpose of the series. The main goal of > this driver is to setup the CPU load level in the hardware to > associate them to CPU frequencies and register a standard cpufreq > driver. Note that the hardware also capable of doing AVS (Adaptive > Voltage Scaling), by associating a voltage on each level beside the > CPU frequency. However, this support is not yet ready, so it is not > part of this series. > > Finally, the last patch is for arm-soc the arm-soc subsystem through > mvebu and update the device tree to support the CPU frequency scaling. > > An update on the CPU clock driver is needed in order to take into > account the DVFS setting. It's the purpose of an other series already > sent, but is no dependencies between the series (for building or at > runtime). > > Thanks, > > Gregory > > Changelog: > > v1 -> v2: > > - using syscon instead of nb_pm for the binding of the North bridge > power management unit: reported by Rob Herring > > - fix sorting inside the big LITTLE section for the Kconfig: reported > by Viresh Kumar > > - fix the bogus freq calculation in armada37xx_cpufreq_driver_init, > bug reported by Andre Heider > > - use dev_pm_opp_remove() on the previous opp if dev_pm_opp_add() > failed, reported by Viresh Kumar > > - add the Tested-by flag from Andre Heider on "cpufreq: Add DVFS > support for Armada 37xx" patch > > Gregory CLEMENT (7): > dt-bindings: marvell: Add documentation for the North Bridge PM on > Armada 37xx > cpufreq: ARM: sort the Kconfig menu > cpufreq: sort the drivers in ARM part > cpufreq: mvebu: Use dev_pm_opp_remove() > MAINTAINERS: add new entries for Armada 37xx cpufreq driver > cpufreq: Add DVFS support for Armada 37xx > arm64: dts: marvell: armada-37xx: add nodes allowing cpufreq support > > .../bindings/arm/marvell/armada-37xx.txt | 19 ++ > MAINTAINERS | 1 + > arch/arm64/boot/dts/marvell/armada-372x.dtsi | 1 + > arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 7 + > drivers/cpufreq/Kconfig.arm | 89 ++++---- > drivers/cpufreq/Makefile | 9 +- > drivers/cpufreq/armada-37xx-cpufreq.c | 241 +++++++++++++++++++++ > drivers/cpufreq/mvebu-cpufreq.c | 11 +- > 8 files changed, 327 insertions(+), 51 deletions(-) > create mode 100644 drivers/cpufreq/armada-37xx-cpufreq.c I'd like you to split patches [2-3/7] off this series as they aren't exactly related to the other changes in it. Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
