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From: Svyatoslav Ryhel <clamor95@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Thierry Reding <treding@nvidia.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Prashant Gaikwad <pgaikwad@nvidia.com>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Svyatoslav Ryhel <clamor95@gmail.com>,
	Mikko Perttunen <mperttunen@nvidia.com>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>
Cc: devicetree@vger.kernel.org, linux-tegra@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org
Subject: [PATCH v4 0/4] clk: tegra: add DFLL support for Tegra114
Date: Thu, 28 Aug 2025 08:43:59 +0300	[thread overview]
Message-ID: <20250828054403.7112-1-clamor95@gmail.com> (raw)

DFLL is a dedicated clock source for the Fast CPU. The DFLL is based on
a ring oscillator and translates voltage changes into frequency
compensation changes needed to prevent the CPU from failing and is
essential for correct CPU frequency scaling.

---
Changes in v2:
- dropped 'drivers:' from commit title
- aligned naming to Tegra114

Changes in v3:
- add DFLL support for Tegra 114 was split into dt header addition,
  DFLL reset configuration and CVB tables implementation.
- added cleaner commit message to dt header commit
- added T210_ prefixes to Tegra210 CVB table macros

Changes in v4:
- expanded commit message of car header adding commit
---

Svyatoslav Ryhel (4):
  dt-bindings: reset: add Tegra114 car header
  clk: tegra: add DFLL DVCO reset control for Tegra114
  clk: tegra: dfll: add CVB tables for Tegra114
  ARM: tegra: Add DFLL clock support for Tegra114

 arch/arm/boot/dts/nvidia/tegra114.dtsi     |  33 +++++
 drivers/clk/tegra/Kconfig                  |   2 +-
 drivers/clk/tegra/clk-tegra114.c           |  30 +++-
 drivers/clk/tegra/clk-tegra124-dfll-fcpu.c | 158 +++++++++++++++++----
 drivers/clk/tegra/clk.h                    |   2 -
 include/dt-bindings/reset/tegra114-car.h   |  13 ++
 6 files changed, 204 insertions(+), 34 deletions(-)
 create mode 100644 include/dt-bindings/reset/tegra114-car.h

-- 
2.48.1


             reply	other threads:[~2025-08-28  5:44 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-28  5:43 Svyatoslav Ryhel [this message]
2025-08-28  5:44 ` [PATCH v4 1/4] dt-bindings: reset: add Tegra114 car header Svyatoslav Ryhel
2025-08-28  7:19   ` Krzysztof Kozlowski
2025-08-28  7:50     ` Mikko Perttunen
2025-08-29  7:29       ` Krzysztof Kozlowski
2025-08-28  5:44 ` [PATCH v4 2/4] clk: tegra: add DFLL DVCO reset control for Tegra114 Svyatoslav Ryhel
2025-08-28  5:44 ` [PATCH v4 3/4] clk: tegra: dfll: add CVB tables " Svyatoslav Ryhel
2025-08-28  5:44 ` [PATCH v4 4/4] ARM: tegra: Add DFLL clock support " Svyatoslav Ryhel
2025-08-28 14:26 ` [PATCH v4 0/4] clk: tegra: add DFLL " Rob Herring (Arm)

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