mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-28 05:24:47 +08:00
d44d6c4a3a
Detailed description for this pull request:
1. Update devfreq core
- Add cpu based scaling support to passive governor. Some device like
cache might require the dynamic frequency scaling. But, it has very
tightly to cpu frequency. So that use passive governor to scale
the frequency according to current cpu frequency.
To decide the frequency of the device, the governor does one of the following:
: Derives the optimal devfreq device opp from required-opps property of
the parent cpu opp_table.
: Scales the device frequency in proportion to the CPU frequency. So, if
the CPUs are running at their max frequency, the device runs at its
max frequency. If the CPUs are running at their min frequency, the
device runs at its min frequency. It is interpolated for frequencies
in between.
2. Update devfreq driver
- Update rk3399_dmc.c as following:
: Convert dt-binding document to YAML and deprecate unused properties.
: Use Hz units for the device-tree properties of rk3399_dmc.
: rk3399_dmc is able to set the idle time before changing the dmc clock.
Specify idle time parameters by using nano-second unit on dt bidning.
: Add new disable-freq properties to optimize the power-saving feature
of rk3399_dmc.
: Disable devfreq-event device on remove() to fix unbalanced
enable-disable count.
: Use devm_pm_opp_of_add_table()
: Block PMU (Power-Management Unit) transitions when scaling frequency
by ARM Trust Firmware in order to fix the conflict between PMU and DMC
(Dynamic Memory Controller).
-----BEGIN PGP SIGNATURE-----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=/3W8
-----END PGP SIGNATURE-----
Merge tag 'devfreq-next-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux
Pull devfreq changes for 5.19-rc1 from Chanwoo Choi:
"1. Update devfreq core
- Add cpu based scaling support to passive governor. Some device like
cache might require the dynamic frequency scaling. But, it has very
tightly to cpu frequency. So that use passive governor to scale
the frequency according to current cpu frequency.
To decide the frequency of the device, the governor does one of the following:
: Derives the optimal devfreq device opp from required-opps property of
the parent cpu opp_table.
: Scales the device frequency in proportion to the CPU frequency. So, if
the CPUs are running at their max frequency, the device runs at its
max frequency. If the CPUs are running at their min frequency, the
device runs at its min frequency. It is interpolated for frequencies
in between.
2. Update devfreq drivers
- Update rk3399_dmc.c as following:
: Convert dt-binding document to YAML and deprecate unused properties.
: Use Hz units for the device-tree properties of rk3399_dmc.
: rk3399_dmc is able to set the idle time before changing the dmc clock.
Specify idle time parameters by using nano-second unit on dt bidning.
: Add new disable-freq properties to optimize the power-saving feature
of rk3399_dmc.
: Disable devfreq-event device on remove() to fix unbalanced
enable-disable count.
: Use devm_pm_opp_of_add_table()
: Block PMU (Power-Management Unit) transitions when scaling frequency
by ARM Trust Firmware in order to fix the conflict between PMU and DMC
(Dynamic Memory Controller)."
* tag 'devfreq-next-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux:
PM / devfreq: passive: Keep cpufreq_policy for possible cpus
PM / devfreq: passive: Reduce duplicate code when passive_devfreq case
PM / devfreq: Add cpu based scaling support to passive governor
PM / devfreq: Export devfreq_get_freq_range symbol within devfreq
PM / devfreq: rk3399_dmc: Block PMU during transitions
soc: rockchip: power-domain: Manage resource conflicts with firmware
PM / devfreq: rk3399_dmc: Avoid static (reused) profile
PM / devfreq: rk3399_dmc: Use devm_pm_opp_of_add_table()
PM / devfreq: rk3399_dmc: Disable edev on remove()
PM / devfreq: rk3399_dmc: Support new *-ns properties
PM / devfreq: rk3399_dmc: Support new disable-freq properties
PM / devfreq: rk3399_dmc: Use bitfield macro definitions for ODT_PD
PM / devfreq: rk3399_dmc: Drop excess timing properties
PM / devfreq: rk3399_dmc: Drop undocumented ondemand DT props
dt-bindings: devfreq: rk3399_dmc: Add more disable-freq properties
dt-bindings: devfreq: rk3399_dmc: Specify idle params in nanoseconds
dt-bindings: devfreq: rk3399_dmc: Fix Hz units
dt-bindings: devfreq: rk3399_dmc: Deprecate unused/redundant properties
dt-bindings: devfreq: rk3399_dmc: Convert to YAML
|
||
|---|---|---|
| .. | ||
| event | ||
| exynos-bus.txt | ||
| nvidia,tegra30-actmon.yaml | ||