Re: [PATCH 12/12] rtc: rzn1: Add support for Renesas RZ/T2H and RZ/N2H SoCs

[Wolfram Sang <wsa+renesas@sang-engineering.com>]

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On Mon, Jun 15, 2026 at 04:48:05PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> Add a new compatible string "renesas,r9a09g077-rtc" to the OF match table
> to support the RTC IP variant found on the RZ/T2H and RZ/N2H SoCs.
> 
> These newer SoCs integrate a closely related variant of the RZ/N1 RTC IP.
> The RZ/T2H and RZ/N2H variants lack the RTCA0SUBU and RTCA0TCR  registers,

The RTCA0TCR is also not on RZ/N1.

> those registers are not accessed or used when operating under the
> rzn1_rtc_ops_scmp configurations, making the current infrastructure
> compatible.
> 
> The RZ/T2H RTC variant also supports a 1 Hz output signal on the
> RTCAT1HZ pin, controlled by the RTCA0CTL1[RTCA01HZE] bit. This bit is
> marked as reserved in the RZ/N1 hardware manual, making RZ/T2H a
> distinct RTC variant despite its overall compatibility with the RZ/N1
> implementation.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

With that fixed:

Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>


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