linux-kernel - [PATCH v2 0/6] Add RTC support for the Renesas RZ/V2H SoC

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Message-ID: <20251021080705.18116-1-ovidiu.panait.rb@renesas.com>
Date: Tue, 21 Oct 2025 08:06:59 +0000
From: Ovidiu Panait <ovidiu.panait.rb@...esas.com>
To: claudiu.beznea.uj@...renesas.com,
	alexandre.belloni@...tlin.com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	geert+renesas@...der.be,
	magnus.damm@...il.com,
	mturquette@...libre.com,
	sboyd@...nel.org,
	p.zabel@...gutronix.de
Cc: linux-rtc@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-clk@...r.kernel.org
Subject: [PATCH v2 0/6] Add RTC support for the Renesas RZ/V2H SoC

Hi,

This series adds RTC support for the Renesas RZ/V2H SoC.

The Renesas RZ/V2H RTC IP is based on the same RTCA3 IP as RZ/G3S
(r9a08g045), with the following differences:
- it lacks the time capture functionality
- the maximum supported periodic interrupt frequency is 128Hz instead
  of 256Hz
- it requires two reset lines instead of one

Best regards,
Ovidiu

v2:
- Updated bindings and RTC dts node with "reset-names" property.

Ovidiu Panait (6):
  clk: renesas: r9a09g057: Add clock and reset entries for RTC
  dt-bindings: rtc: renesas,rz-rtca3: Add RZ/V2H support
  rtc: renesas-rtca3: Use OF data for configuration
  rtc: renesas-rtca3: Add support for RZ/V2H SoC
  arm64: dts: renesas: r9a09g057: Add RTC node
  arm64: dts: renesas: r9a09g057h44-rzv2h-evk: Enable RTC

 .../bindings/rtc/renesas,rz-rtca3.yaml        | 45 ++++++++++++++++---
 arch/arm64/boot/dts/renesas/r9a09g057.dtsi    | 15 +++++++
 .../dts/renesas/r9a09g057h44-rzv2h-evk.dts    |  4 ++
 drivers/clk/renesas/r9a09g057-cpg.c           |  4 ++
 drivers/rtc/rtc-renesas-rtca3.c               | 27 +++++++++--
 5 files changed, 87 insertions(+), 8 deletions(-)

-- 
2.51.0