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

Ovidiu Panait
2025-10-21T08:07:13Z

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(-)

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2.51.0