From: Henry Chen <henryc.chen@mediatek.com>
To: Viresh Kumar <vireshk@kernel.org>,
Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Ulf Hansson <ulf.hansson@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
Fan Chen <fan.chen@mediatek.com>,
Weiyi Lu <weiyi.lu@mediatek.com>,
James Liao <jamesjj.liao@mediatek.com>,
Kees Cook <keescook@chromium.org>,
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
Subject: [RFC PATCH 0/7] Add driver for dvfsrc and add support for active state of scpsys on mt8183
Date: Wed, 2 Jan 2019 21:43:57 +0800 [thread overview]
Message-ID: <1546436644-19234-1-git-send-email-henryc.chen@mediatek.com> (raw)
The patchsets add support for MediaTek hardware module named DVFSRC
(dynamic voltage and frequency scaling resource collector). The DVFSRC is
a HW module which is used to collect all the requests from both software
and hardware and turn into the decision of minimum operating voltage and
minimum DRAM frequency to fulfill those requests.
So, This series is to implement the dvfsrc driver to collect all the
requests of operating voltage or DRAM bandwidth from other device drivers
likes GPU/Camera through 2 frameworks basically:
1. PM_QOS_MEMORY_BANDWIDTH from PM QOS: to aggregate the bandwidth
requirements from different clients
2. Active state management of power domains[1]: to handle the operating
voltage opp requirement from different power domains
[1] https://lwn.net/Articles/744047/
next reply other threads:[~2019-01-02 13:43 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-02 13:43 Henry Chen [this message]
2019-01-02 13:43 ` [RFC PATCH 1/7] dt-bindings: soc: Add DVFSRC driver bindings Henry Chen
2019-01-02 13:43 ` [RFC PATCH 2/7] dt-bindings: soc: Add opp table on scpsys bindings Henry Chen
2019-01-02 13:44 ` [RFC PATCH 3/7] soc: mediatek: add support for the performance state Henry Chen
2019-01-03 1:48 ` Nicolas Boichat
2019-01-03 14:16 ` Henry Chen
2019-01-04 7:21 ` Nicolas Boichat
2019-01-02 13:44 ` [RFC PATCH 4/7] arm64: dts: mt8183: add performance state support of scpsys Henry Chen
2019-01-02 13:44 ` [RFC PATCH 5/7] soc: mediatek: add header for mediatek SIP interface Henry Chen
2019-01-02 13:44 ` [RFC PATCH 6/7] soc: mediatek: add MT8183 dvfsrc support Henry Chen
2019-01-03 2:16 ` Nicolas Boichat
2019-01-03 14:16 ` Henry Chen
2019-01-04 7:23 ` Nicolas Boichat
2019-01-02 13:44 ` [RFC PATCH 7/7] arm64: dts: mt8183: add dvfsrc related nodes Henry Chen
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