From: Christian Marangi <ansuelsmth@gmail.com>
To: MyungJoo Ham <myungjoo.ham@samsung.com>,
Kyungmin Park <kyungmin.park@samsung.com>,
Chanwoo Choi <cw00.choi@samsung.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Christian Marangi <ansuelsmth@gmail.com>,
linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/2] PM / devfreq: add Airoha SoC Subsystem scale support
Date: Fri, 9 Oct 2026 09:33:27 +0200 [thread overview]
Message-ID: <20261009073330.18175-1-ansuelsmth@gmail.com> (raw)
Airoha SoC contains multiple subsystem that are scaled to a
specific OPP taking the CPU clock as reference. Such sybsystem
can enter idle or performance state based on the system load
and power consumption conditions.
Example of such subsystem are GSW (Gigabit Switch), NPU (Custom
Risc Co-Processor for Network acceleration), SOE (Crypto Module) BUS...
Changes v2:
- Rename to a more symbolic name
- Address some sashiko bot warning
- Better describe the use of this devfreq driver
Christian Marangi (2):
dt-bindings: devfreq: Document support for Airoha Subsystem Scale
PM / devfreq: add Airoha SoC Subsystem devfreq driver
.../devfreq/airoha,subsystem-scale.yaml | 114 ++++++++++++++++++
drivers/devfreq/Kconfig | 10 ++
drivers/devfreq/Makefile | 1 +
drivers/devfreq/airoha-subsystem-devfreq.c | 100 +++++++++++++++
4 files changed, 225 insertions(+)
create mode 100644 Documentation/devicetree/bindings/devfreq/airoha,subsystem-scale.yaml
create mode 100644 drivers/devfreq/airoha-subsystem-devfreq.c
--
2.55.0
next reply other threads:[~2026-10-09 7:33 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-09 7:33 Christian Marangi [this message]
2026-10-09 7:33 ` [PATCH v2 1/2] dt-bindings: devfreq: Document support for Airoha Subsystem Scale Christian Marangi
2026-10-09 7:39 ` sashiko-bot
2026-10-09 15:06 ` Conor Dooley
2026-10-09 15:15 ` Christian Marangi (Ansuel)
2026-10-09 7:33 ` [PATCH v2 2/2] PM / devfreq: add Airoha SoC Subsystem devfreq driver Christian Marangi
2026-10-09 7:46 ` sashiko-bot
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