From: Roger Lu <roger.lu@mediatek.com>
To: Matthias Brugger <matthias.bgg@gmail.com>,
Enric Balletbo Serra <eballetbo@gmail.com>,
Kevin Hilman <khilman@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Nicolas Boichat <drinkcat@google.com>,
Stephen Boyd <sboyd@kernel.org>,
Philipp Zabel <p.zabel@pengutronix.de>
Cc: Fan Chen <fan.chen@mediatek.com>,
HenryC Chen <HenryC.Chen@mediatek.com>,
Xiaoqing Liu <Xiaoqing.Liu@mediatek.com>,
Charles Yang <Charles.Yang@mediatek.com>,
Angus Lin <Angus.Lin@mediatek.com>,
Mark Rutland <mark.rutland@arm.com>, Nishanth Menon <nm@ti.com>,
Roger Lu <roger.lu@mediatek.com>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-pm@vger.kernel.org>,
<Project_Global_Chrome_Upstream_Group@mediatek.com>,
Guenter Roeck <linux@roeck-us.net>,
Jia-wei Chang <jia-wei.chang@mediatek.com>
Subject: [PATCH v24 0/7] soc: mediatek: SVS: introduce MTK SVS
Date: Wed, 20 Apr 2022 18:20:37 +0800 [thread overview]
Message-ID: <20220420102044.10832-1-roger.lu@mediatek.com> (raw)
The Smart Voltage Scaling(SVS) engine is a piece of hardware
which calculates suitable SVS bank voltages to OPP voltage table.
Then, DVFS driver could apply those SVS bank voltages to PMIC/Buck
when receiving OPP_EVENT_ADJUST_VOLTAGE.
1. SVS driver uses OPP adjust event in [1] to update OPP table voltage part.
2. SVS driver gets thermal/GPU device by node [2][3] and CPU device by get_cpu_device().
After retrieving subsys device, SVS driver calls device_link_add() to make sure probe/suspend callback priority.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git/commit/?h=opp/linux-next&id=25cb20a212a1f989385dfe23230817e69c62bee5
[2] https://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git/commit/?h=opp/linux-next&id=b325ce39785b1408040d90365a6ab1aa36e94f87
[3] https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux.git/commit/?h=v5.16-next/dts64&id=a8168cebf1bca1b5269e8a7eb2626fb76814d6e2
Change since v23:
- Change wording from "Mediatek" to "MediaTek" (uppercase T) in mtk-svs.yaml.
- Use cpuidle_pause_and_lock() to prevent system from entering cpuidle instead of applying pm_qos APIs.
- Add kfree() at the end of svs_probe() when encountering probe fail.
- Change MODULE_LICENSE from "GPL v2" to "GPL".
- Add nvmem_cell_put() in error handling when nvmem_cell_read() encounters fail.
Roger Lu (7):
[v24,1/7] dt-bindings: soc: mediatek: add mtk svs dt-bindings
[v24,2/7] arm64: dts: mt8183: add svs device information
[v24,3/7] soc: mediatek: SVS: introduce MTK SVS engine
[v24,4/7] soc: mediatek: SVS: add monitor mode
[v24,5/7] soc: mediatek: SVS: add debug commands
[v24,6/7] dt-bindings: soc: mediatek: add mt8192 svs dt-bindings
[v24,7/7] soc: mediatek: SVS: add mt8192 SVS GPU driver
.../bindings/soc/mediatek/mtk-svs.yaml | 91 +
arch/arm64/boot/dts/mediatek/mt8183.dtsi | 16 +
drivers/soc/mediatek/Kconfig | 10 +
drivers/soc/mediatek/Makefile | 1 +
drivers/soc/mediatek/mtk-svs.c | 2403 +++++++++++++++++
5 files changed, 2521 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mtk-svs.yaml
create mode 100644 drivers/soc/mediatek/mtk-svs.c
next reply other threads:[~2022-04-20 10:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-20 10:20 Roger Lu [this message]
2022-04-20 10:20 ` [PATCH v24 1/7] dt-bindings: soc: mediatek: add mtk svs dt-bindings Roger Lu
2022-04-20 10:20 ` [PATCH v24 2/7] arm64: dts: mt8183: add svs device information Roger Lu
2022-04-20 10:20 ` [PATCH v24 3/7] soc: mediatek: SVS: introduce MTK SVS engine Roger Lu
2022-04-21 0:06 ` Kevin Hilman
2022-04-21 9:11 ` Roger Lu
2022-04-20 10:20 ` [PATCH v24 4/7] soc: mediatek: SVS: add monitor mode Roger Lu
2022-04-20 10:20 ` [PATCH v24 5/7] soc: mediatek: SVS: add debug commands Roger Lu
2022-04-20 10:20 ` [PATCH v24 6/7] dt-bindings: soc: mediatek: add mt8192 svs dt-bindings Roger Lu
2022-04-20 10:20 ` [PATCH v24 7/7] soc: mediatek: SVS: add mt8192 SVS GPU driver Roger Lu
2022-04-20 23:22 ` [PATCH v24 0/7] soc: mediatek: SVS: introduce MTK SVS Kevin Hilman
2022-04-21 9:28 ` Roger Lu
2022-04-21 19:41 ` Kevin Hilman
2022-04-22 2:24 ` Roger Lu
2022-04-22 15:38 ` Matthias Brugger
2022-04-26 7:15 ` Chen-Yu Tsai
2022-05-02 22:07 ` Kevin Hilman
2022-05-03 6:13 ` Chen-Yu Tsai
2022-05-04 19:25 ` Kevin Hilman
2022-05-06 8:40 ` Chen-Yu Tsai
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220420102044.10832-1-roger.lu@mediatek.com \
--to=roger.lu@mediatek.com \
--cc=Angus.Lin@mediatek.com \
--cc=Charles.Yang@mediatek.com \
--cc=HenryC.Chen@mediatek.com \
--cc=Project_Global_Chrome_Upstream_Group@mediatek.com \
--cc=Xiaoqing.Liu@mediatek.com \
--cc=devicetree@vger.kernel.org \
--cc=drinkcat@google.com \
--cc=eballetbo@gmail.com \
--cc=fan.chen@mediatek.com \
--cc=jia-wei.chang@mediatek.com \
--cc=khilman@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=linux-pm@vger.kernel.org \
--cc=linux@roeck-us.net \
--cc=mark.rutland@arm.com \
--cc=matthias.bgg@gmail.com \
--cc=nm@ti.com \
--cc=p.zabel@pengutronix.de \
--cc=robh+dt@kernel.org \
--cc=sboyd@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).