[PATCH V8 0/8] Add cpufreq and cci devfreq for mt8183, and SVS support - Andrew-sh.Cheng

From: Andrew-sh.Cheng <andrew-sh.cheng@mediatek.com>
To: MyungJoo Ham <myungjoo.ham@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Chanwoo Choi <cw00.choi@samsung.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	"Matthias Brugger" <matthias.bgg@gmail.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	Nishanth Menon <nm@ti.com>, "Stephen Boyd" <sboyd@kernel.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>
Cc: <linux-pm@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	 <linux-kernel@vger.kernel.org>, <srv_heupstream@mediatek.com>,
	Andrew-sh.Cheng <andrew-sh.cheng@mediatek.com>
Subject: [PATCH V8 0/8] Add cpufreq and cci devfreq for mt8183, and SVS support
Date: Tue, 23 Mar 2021 19:33:53 +0800	[thread overview]
Message-ID: <1616499241-4906-1-git-send-email-andrew-sh.cheng@mediatek.com> (raw)

From: "Andrew-sh.Cheng" <andrew-sh.cheng@mediatek.com>

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 v7:
	- Separate part of "[v7,6/8] cpufreq: mediatek: add opp notification for SVS support" into another patch.
		- "cpufreq: mediatek: Add record of previous desired vproc value"
		- This is for case of there are multiple users on Vproc.
		- cpufreq will record desired voltage.
	- For "[v7,8/8] arm64: dts: mediatek: add cpufreq and cci devfreq nodes for mt8183"
		- Add "required-opps" for cci to make cpufreq based passive governor work.
	- Depend on patches have already in K-5.12

Andrew-sh.Cheng (7):
  cpufreq: mediatek: Enable clock and regulator
  dt-bindings: devfreq: add compatible for mt8183 cci devfreq
  devfreq: add mediatek cci devfreq
  cpufreq: mediatek: Add record of previous desired vproc value
  cpufreq: mediatek: add opp notification for SVS support
  devfreq: mediatek: cci devfreq register opp notification for SVS
    support
  arm64: dts: mediatek: add cpufreq and cci devfreq nodes for mt8183

Saravana Kannan (1):
  PM / devfreq: Add cpu based scaling support to passive_governor

 .../devicetree/bindings/devfreq/mt8183-cci.yaml    |  51 ++++
 arch/arm64/boot/dts/mediatek/mt8183-evb.dts        |  36 +++
 arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi     |   4 +
 arch/arm64/boot/dts/mediatek/mt8183.dtsi           | 277 +++++++++++++++++
 drivers/cpufreq/mediatek-cpufreq.c                 | 122 +++++++-
 drivers/devfreq/Kconfig                            |  12 +
 drivers/devfreq/Makefile                           |   1 +
 drivers/devfreq/governor_passive.c                 | 329 ++++++++++++++++++++-
 drivers/devfreq/mt8183-cci-devfreq.c               | 225 ++++++++++++++
 include/linux/devfreq.h                            |  29 +-
 10 files changed, 1060 insertions(+), 26 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/devfreq/mt8183-cci.yaml
 create mode 100644 drivers/devfreq/mt8183-cci-devfreq.c

-- 
2.12.5
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