linux-kernel - [PATCH v3 0/4] clk: tegra: add DFLL support for Tegra114

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Message-ID: <20250826061117.63643-1-clamor95@gmail.com>
Date: Tue, 26 Aug 2025 09:11:13 +0300
From: Svyatoslav Ryhel <clamor95@...il.com>
To: Thierry Reding <thierry.reding@...il.com>,
	Thierry Reding <treding@...dia.com>,
	Mikko Perttunen <mperttunen@...dia.com>,
	Jonathan Hunter <jonathanh@...dia.com>,
	Prashant Gaikwad <pgaikwad@...dia.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Svyatoslav Ryhel <clamor95@...il.com>
Cc: linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-clk@...r.kernel.org,
	linux-pm@...r.kernel.org
Subject: [PATCH v3 0/4] clk: tegra: add DFLL support for Tegra114

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
---

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