[PATCH v4 0/4] Add CPU Frequency scaling support on Armada 37xx

Gregory CLEMENT
2017-12-14T15:00:02Z

Hi,

This is the forth 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.

This time the only change is fixing the last white space issues found
by Viresh. This was not mandatory but it is good to start with a clean
new file.

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

v2 -> v3:

- move patches "cpufreq: ARM: sort the Kconfig menu", " cpufreq:
sort the drivers in ARM part", "cpufreq: mvebu: Use
dev_pm_opp_remove()" in separate series

- add reviewed-by and acked-by flags on the commits

- use space instead of tab in the #define in the armada-37xx-cpufreq.c file.

v3 -> v4

- fix white space in the armada-37xx-cpufreq.c file.

Gregory CLEMENT (4):
dt-bindings: marvell: Add documentation for the North Bridge PM on
Armada 37xx
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 | 7 +
drivers/cpufreq/Makefile | 1 +
drivers/cpufreq/armada-37xx-cpufreq.c | 241 +++++++++++++++++++++
7 files changed, 277 insertions(+)
create mode 100644 drivers/cpufreq/armada-37xx-cpufreq.c

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2.15.1