RE: [PATCH 6.18 114/212] arm64: dts: renesas: r9a09g057: Add RTC node

Ovidiu Panait
2026-03-23T14:13:39Z

Hi,

> 6.18-stable review patch. If anyone has any objections, please let me
> know.
>
> ------------------
>
> From: Ovidiu Panait <ovidiu.panait.rb@renesas.com>
>
> [ Upstream commit cfc733da4e79018f88d8ac5f3a5306abbba8ef89 ]
>
> Add RTC node to Renesas RZ/V2H ("R9A09G057") SoC DTSI.
>
> Signed-off-by: Ovidiu Panait <ovidiu.panait.rb@renesas.com>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
> Link: https://patch.msgid.link/20251107210706.45044-4-
> ovidiu.panait.rb@renesas.com
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> Stable-dep-of: a3f34651de42 ("arm64: dts: renesas: r9a09g057: Remove
> wdt{0,2,3} nodes")

I think this patch needs to be dropped from the stable queues, it adds
the dts node for RTC but there is no support in the driver for this
platform in older kernels.

It looks like it was pulled in as a dependency of an unrelated watchdog
fix.

Ovidiu

> Signed-off-by: Sasha Levin <sashal@kernel.org>
> ---
> arch/arm64/boot/dts/renesas/r9a09g057.dtsi | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/renesas/r9a09g057.dtsi
> b/arch/arm64/boot/dts/renesas/r9a09g057.dtsi
> index 630f7a98df386..f59c3040f536a 100644
> --- a/arch/arm64/boot/dts/renesas/r9a09g057.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r9a09g057.dtsi
> @@ -586,6 +586,21 @@ wdt3: watchdog@13000400 {
> status = "disabled";
> };
>
> + rtc: rtc@11c00800 {
> + compatible = "renesas,r9a09g057-rtca3", "renesas,rz-
> rtca3";
> + reg = <0 0x11c00800 0 0x400>;
> + interrupts = <GIC_SPI 524 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 525 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 526 IRQ_TYPE_EDGE_RISING>;
> + interrupt-names = "alarm", "period", "carry";
> + clocks = <&cpg CPG_MOD 0x53>, <&rtxin_clk>;
> + clock-names = "bus", "counter";
> + power-domains = <&cpg>;
> + resets = <&cpg 0x79>, <&cpg 0x7a>;
> + reset-names = "rtc", "rtest";
> + status = "disabled";
> + };
> +
> scif: serial@11c01400 {
> compatible = "renesas,scif-r9a09g057";
> reg = <0 0x11c01400 0 0x400>;
> --
> 2.51.0
>
>