[PATCH v3 0/4] Add RTC support for the Renesas RZ/V2H SoC

Ovidiu Panait
2025-11-03T12:19:00Z

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

v3:
- Dropped all changes related to "max_user_freq", as it was removed from
all drivers by:
https://lore.kernel.org/all/20251101-max_user_freq-v1-0-c9a274fd6883@bootlin.com/

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

Ovidiu Panait (4):
dt-bindings: rtc: renesas,rz-rtca3: Add RZ/V2H support
rtc: renesas-rtca3: Add support for multiple reset lines
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/rtc/rtc-renesas-rtca3.c | 2 +-
4 files changed, 60 insertions(+), 6 deletions(-)

--
2.51.0