Re: [PATCH 00/12] Add cpufreq and cci devfreq for mt8183, and SVS support

Chanwoo Choi
2020-05-20T04:00:56Z

Hi Andrew,

Could you explain the base commit of these patches?
When I tried to apply them to v5.7-rc1 for testing,
the merge conflict occurs.

Thanks,
Chanwoo Choi

On 5/20/20 12:42 PM, Andrew-sh.Cheng wrote:
> MT8183 supports CPU DVFS and CCI DVFS, and LITTLE cpus and CCI are in the same voltage domain.
> So, this series is to add drivers to handle the voltage coupling between CPU and CCI DVFS.
>
> For SVS support, need OPP_EVENT_ADJUST_VOLTAGE and corresponding reaction.
>
> Change since v5:
> - Changing dt-binding format to yaml.
> - Extending current devfreq passive_governor instead of create a new one.
> - Resend depending patches of Sravana Kannan base on kernel-5.7
>
>
> Andrew-sh.Cheng (6):
> cpufreq: mediatek: add clock and regulator enable for intermediate
> clock
> dt-bindings: devfreq: add compatible for mt8183 cci devfreq
> devfreq: add mediatek cci devfreq
> opp: Modify opp API, dev_pm_opp_get_freq(), find freq in opp, even it
> is disabled
> cpufreq: mediatek: add opp notification for SVS support
> devfreq: mediatek: cci devfreq register opp notification for SVS
> support
>
> Saravana Kannan (6):
> OPP: Allow required-opps even if the device doesn't have power-domains
> OPP: Add function to look up required OPP's for a given OPP
> OPP: Improve required-opps linking
> PM / devfreq: Cache OPP table reference in devfreq
> PM / devfreq: Add required OPPs support to passive governor
> PM / devfreq: Add cpu based scaling support to passive_governor
>
> .../devicetree/bindings/devfreq/mt8183-cci.yaml | 51 ++++
> drivers/cpufreq/mediatek-cpufreq.c | 122 ++++++++-
> drivers/devfreq/Kconfig | 12 +
> drivers/devfreq/Makefile | 1 +
> drivers/devfreq/devfreq.c | 6 +
> drivers/devfreq/governor_passive.c | 298 +++++++++++++++++++--
> drivers/devfreq/mt8183-cci-devfreq.c | 233 ++++++++++++++++
> drivers/opp/core.c | 85 +++++-
> drivers/opp/of.c | 108 ++++----
> drivers/opp/opp.h | 5 +
> include/linux/devfreq.h | 42 ++-
> include/linux/pm_opp.h | 11 +
> 12 files changed, 874 insertions(+), 100 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/devfreq/mt8183-cci.yaml
> create mode 100644 drivers/devfreq/mt8183-cci-devfreq.c