From b418fa370ea69fc5824e70b63d9f4c93249762e7 Mon Sep 17 00:00:00 2001 From: Lad Prabhakar Date: Fri, 21 Aug 2026 22:10:32 +0100 Subject: [PATCH] rtc: rzn1: Add support for Renesas RZ/T2H and RZ/N2H SoCs Add support for the RTC block found on the Renesas RZ/T2H (R9A09G077) and RZ/N2H (R9A09G087) SoCs. These SoCs integrate a closely related variant of the RZ/N1 RTC IP, but do not implement the RTCA0SUBU register. Use variant-specific match data to disable SUBU support for these SoCs. Signed-off-by: Lad Prabhakar Reviewed-by: Wolfram Sang Tested-by: Wolfram Sang Link: https://patch.msgid.link/20260821211032.13554-18-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-rzn1.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/rtc/rtc-rzn1.c b/drivers/rtc/rtc-rzn1.c index 906d03c65df3..1e1676a7f3cc 100644 --- a/drivers/rtc/rtc-rzn1.c +++ b/drivers/rtc/rtc-rzn1.c @@ -523,11 +523,16 @@ static int rzn1_rtc_probe(struct platform_device *pdev) return devm_rtc_register_device(rtc->rtcdev); } +static const struct rzn1_rtc_data rzn1_rtc_rzt2h_data = { + .has_subu = false, +}; + static const struct rzn1_rtc_data rzn1_rtc_rzn1_data = { .has_subu = true, }; static const struct of_device_id rzn1_rtc_of_match[] = { + { .compatible = "renesas,r9a09g077-rtc", .data = &rzn1_rtc_rzt2h_data }, { .compatible = "renesas,rzn1-rtc", .data = &rzn1_rtc_rzn1_data }, { /* sentinel */ } };