From nobody Mon Feb 9 00:29:52 2026 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id A10F833F8A9; Fri, 7 Nov 2025 21:07:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762549643; cv=none; b=CEixEblM/+zNiSkmRzShio0twYCMXI9chkPYLkqeMWSsoUvWcGkqMXnRcovwVIZOopfaHPwSS/qYSjgTupddmG6iHCqHsP7mJUZ4JXqcszrYQfoo3ue3ZmeGOSvfBeobQ8n5REZuHZLHVLe6AlkWrUhpVj184W89VasE6t5baDA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762549643; c=relaxed/simple; bh=iJuZIOes2XAgT3eAh7sIRjtBrzNjl0r83lrWW4D16Qo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jdm9gWUnNGosxvG+0zn0pb+Vk6JDzEu6xZ5XF5jzzltqfGUx+Hi87mH1CT9ZZkJD1xrDNGMtg/ufw9iwBrDuhfa7WpVQD6Uuo8k6GT0xDl4z7vfAHp/49xPYkwJQZ/Ael+NEcu1kRKfgc2DkDjQb5gTPul8bqmYmQWJ7ok4769s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com; spf=pass smtp.mailfrom=renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=renesas.com X-CSE-ConnectionGUID: N+ERxlYiTzuUkcF4DGdyHA== X-CSE-MsgGUID: pwV2QVJpQSGwzRF4FRAJvg== Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 08 Nov 2025 06:07:15 +0900 Received: from vm01.adwin.renesas.com (unknown [10.226.93.123]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 2A3D3400007A; Sat, 8 Nov 2025 06:07:11 +0900 (JST) From: Ovidiu Panait To: claudiu.beznea.uj@bp.renesas.com, alexandre.belloni@bootlin.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, p.zabel@pengutronix.de Cc: linux-rtc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 1/4] dt-bindings: rtc: renesas,rz-rtca3: Add RZ/V2H support Date: Fri, 7 Nov 2025 21:07:03 +0000 Message-ID: <20251107210706.45044-2-ovidiu.panait.rb@renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251107210706.45044-1-ovidiu.panait.rb@renesas.com> References: <20251107210706.45044-1-ovidiu.panait.rb@renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 Add new compatible string "renesas,r9a09g057-rtca3" for RZ/V2H and update the binding accordingly: - Allow "resets" to contain one or two entries depending on the SoC. - Add "reset-names" property, but make it required only for RZ/V2H. Signed-off-by: Ovidiu Panait Acked-by: Conor Dooley --- .../bindings/rtc/renesas,rz-rtca3.yaml | 46 +++++++++++++++++-- 1 file changed, 41 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/rtc/renesas,rz-rtca3.yaml b/= Documentation/devicetree/bindings/rtc/renesas,rz-rtca3.yaml index e70eeb66aa64..ccb1638c35b9 100644 --- a/Documentation/devicetree/bindings/rtc/renesas,rz-rtca3.yaml +++ b/Documentation/devicetree/bindings/rtc/renesas,rz-rtca3.yaml @@ -9,14 +9,12 @@ title: Renesas RTCA-3 Real Time Clock maintainers: - Claudiu Beznea =20 -allOf: - - $ref: rtc.yaml# - properties: compatible: items: - enum: - renesas,r9a08g045-rtca3 # RZ/G3S + - renesas,r9a09g057-rtca3 # RZ/V2H - const: renesas,rz-rtca3 =20 reg: @@ -48,8 +46,12 @@ properties: maxItems: 1 =20 resets: - items: - - description: VBATTB module reset + minItems: 1 + maxItems: 2 + + reset-names: + minItems: 1 + maxItems: 2 =20 required: - compatible @@ -61,6 +63,39 @@ required: - power-domains - resets =20 +allOf: + - $ref: rtc.yaml# + + - if: + properties: + compatible: + contains: + const: renesas,r9a08g045-rtca3 + then: + properties: + resets: + items: + - description: VBATTB module reset + reset-names: + const: vbattb + - if: + properties: + compatible: + contains: + const: renesas,r9a09g057-rtca3 + then: + properties: + resets: + items: + - description: RTC reset + - description: Reset for the RTEST registers + reset-names: + items: + - const: rtc + - const: rtest + required: + - reset-names + additionalProperties: false =20 examples: @@ -81,4 +116,5 @@ examples: clock-names =3D "bus", "counter"; power-domains =3D <&cpg>; resets =3D <&cpg R9A08G045_VBAT_BRESETN>; + reset-names =3D "vbattb"; }; --=20 2.51.0 From nobody Mon Feb 9 00:29:52 2026 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 0F1A734D4F8; Fri, 7 Nov 2025 21:07:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762549649; cv=none; b=BLOf8Rp5KrWfOQw/AIv7Gp/QMO0DilFJcmwjU2pAtqalcK177DTQf/SDeN6zSfjsLcibHAdRylG7KN+uPKtsXplC6n1kP5+yuiO57pKJ66ksFqsWw1beUf0pyGe8XFj4U6ASQ2MMSZ/I2IfqkaiaFzdymw6zLz4CvDYCktJdCjE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762549649; c=relaxed/simple; bh=3N8gIO/Y4gG4k9D1S3MyWA/zSzgWm6SqqO6yp+Jsvr4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=aeoB49pOanQAvaRAkff9/0WS6MSOvwQ4pvXkb5bs3QYzo3dYOASlvnDCA72VxHDZtVO9mJ7uyZCz52puMbyjsgb/kCM76sbbqlFstn2HV0FJBT7FY/cjFW4f5AsjRCp2dOTEyC9RazzENHBUcFwB871avHwxCy+YFHfstO2Bk00= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com; spf=pass smtp.mailfrom=renesas.com; arc=none smtp.client-ip=210.160.252.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=renesas.com X-CSE-ConnectionGUID: 0TFrevXxTHa6J+c+2TrDug== X-CSE-MsgGUID: xCV7I5+ZR1WK0fstiXgNJA== Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie6.idc.renesas.com with ESMTP; 08 Nov 2025 06:07:20 +0900 Received: from vm01.adwin.renesas.com (unknown [10.226.93.123]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id A8A414007D1A; Sat, 8 Nov 2025 06:07:16 +0900 (JST) From: Ovidiu Panait To: claudiu.beznea.uj@bp.renesas.com, alexandre.belloni@bootlin.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, p.zabel@pengutronix.de Cc: linux-rtc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 2/4] rtc: renesas-rtca3: Add support for multiple reset lines Date: Fri, 7 Nov 2025 21:07:04 +0000 Message-ID: <20251107210706.45044-3-ovidiu.panait.rb@renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251107210706.45044-1-ovidiu.panait.rb@renesas.com> References: <20251107210706.45044-1-ovidiu.panait.rb@renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Switch from devm_reset_control_get_shared() to devm_reset_control_array_get_shared() when retrieving resets. The RZ/V2H SoC requires two resets for the RTC block instead of one, so this will allow to handle multiple resets without additional changes. Signed-off-by: Ovidiu Panait Reviewed-by: Claudiu Beznea --- drivers/rtc/rtc-renesas-rtca3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-renesas-rtca3.c b/drivers/rtc/rtc-renesas-rtca= 3.c index ab816bdf0d77..3524053269ef 100644 --- a/drivers/rtc/rtc-renesas-rtca3.c +++ b/drivers/rtc/rtc-renesas-rtca3.c @@ -726,7 +726,7 @@ static int rtca3_probe(struct platform_device *pdev) if (ret) return ret; =20 - priv->rstc =3D devm_reset_control_get_shared(dev, NULL); + priv->rstc =3D devm_reset_control_array_get_shared(dev); if (IS_ERR(priv->rstc)) return PTR_ERR(priv->rstc); =20 --=20 2.51.0 From nobody Mon Feb 9 00:29:52 2026 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 2574134D929; Fri, 7 Nov 2025 21:07:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762549647; cv=none; b=emVDFX+75gIGlN/hO6zy0d5uucQVeQ1pZzVq1UF39TD3jGDqgYsaFc0nxcrg+nNfqr8PY+N7d3t9OlkIb3rJupwatkPTu0jGut8FtrXGeyPSSMyZWzFUVTYaqkzE5q8GFw2UB9YjDs9Z6aOHgOy8wvn/7PR3h81j6Hb+6m0HiLE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762549647; c=relaxed/simple; bh=LEDVcd7JTeayJk+3CzFwOxmhOV3RAAW/LzZ5Uk9r8Xk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=swOhDiqC1pwin0tMm/IDVxfSGyekRVioPzX7+60QKJTg05ZnA0u/kIkcBmu539sa+HTqBkxfMYre4YGBAxpQqQMN0OlI27tS1jFAyLwggrL+4ee6/CEyNAcnh27n5J6h62vWYpKpsWSqf6Vl7NC0F2fuE+nUO2PJvl9DeoAcTy8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com; spf=pass smtp.mailfrom=renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=renesas.com X-CSE-ConnectionGUID: HB38IexoTFiowME1IgeGuA== X-CSE-MsgGUID: z0uXwFi4Rd6QgW5Qd7CHmg== Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 08 Nov 2025 06:07:24 +0900 Received: from vm01.adwin.renesas.com (unknown [10.226.93.123]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 1ACB14007D1A; Sat, 8 Nov 2025 06:07:20 +0900 (JST) From: Ovidiu Panait To: claudiu.beznea.uj@bp.renesas.com, alexandre.belloni@bootlin.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, p.zabel@pengutronix.de Cc: linux-rtc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 3/4] arm64: dts: renesas: r9a09g057: Add RTC node Date: Fri, 7 Nov 2025 21:07:05 +0000 Message-ID: <20251107210706.45044-4-ovidiu.panait.rb@renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251107210706.45044-1-ovidiu.panait.rb@renesas.com> References: <20251107210706.45044-1-ovidiu.panait.rb@renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add RTC node to Renesas RZ/V2H ("R9A09G057") SoC DTSI. Signed-off-by: Ovidiu Panait Reviewed-by: Geert Uytterhoeven --- 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/d= ts/renesas/r9a09g057.dtsi index 40b15f1db930..8aad46c367ae 100644 --- a/arch/arm64/boot/dts/renesas/r9a09g057.dtsi +++ b/arch/arm64/boot/dts/renesas/r9a09g057.dtsi @@ -591,6 +591,21 @@ wdt3: watchdog@13000400 { status =3D "disabled"; }; =20 + rtc: rtc@11c00800 { + compatible =3D "renesas,r9a09g057-rtca3", "renesas,rz-rtca3"; + reg =3D <0 0x11c00800 0 0x400>; + interrupts =3D , + , + ; + interrupt-names =3D "alarm", "period", "carry"; + clocks =3D <&cpg CPG_MOD 0x53>, <&rtxin_clk>; + clock-names =3D "bus", "counter"; + power-domains =3D <&cpg>; + resets =3D <&cpg 0x79>, <&cpg 0x7a>; + reset-names =3D "rtc", "rtest"; + status =3D "disabled"; + }; + scif: serial@11c01400 { compatible =3D "renesas,scif-r9a09g057"; reg =3D <0 0x11c01400 0 0x400>; --=20 2.51.0 From nobody Mon Feb 9 00:29:52 2026 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id C11BF34DB7F; Fri, 7 Nov 2025 21:07:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762549651; cv=none; b=FDSpET3qokpybxAxKgKjCTjfOH3daoEr2txKVY85ji463F2hPp9s3nk8f0EctEsfsNC7bJ8/I544znAyU7xX8C25yZodpxXGVFjDT4sASD5xzdAnFRMsOC0AzakECa39oO6q6CnobOZ0UETOis642jSWfg0ooTlAxO1tmIdCiVE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762549651; c=relaxed/simple; bh=RZil7nYEzSrNAf1EU1bKa08vAC8yB1ycRnCBTre+0sE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bJgWXI117LrtlLS99w5Mla5Ll6m0EgE5FR0dO+ksvMLcfX0Qj7M3d8r8yEUR/c3b2nm/mJQVN5Tf9XqxTCo8mT8nYg4ZkZ0W5zriTgabt3LRMtw8VKDZ+tRqsCmr+Dd4ygJSCQlH/9U7///FLSeOz+HGIdIussnLk8r97lsTYB4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com; spf=pass smtp.mailfrom=renesas.com; arc=none smtp.client-ip=210.160.252.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=renesas.com X-CSE-ConnectionGUID: 9kf/MmeoT52cxYDD67wmkQ== X-CSE-MsgGUID: 6X0oIlfUQ9Ko04j76v8Gvw== Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie6.idc.renesas.com with ESMTP; 08 Nov 2025 06:07:29 +0900 Received: from vm01.adwin.renesas.com (unknown [10.226.93.123]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 8AF5A4007D1A; Sat, 8 Nov 2025 06:07:25 +0900 (JST) From: Ovidiu Panait To: claudiu.beznea.uj@bp.renesas.com, alexandre.belloni@bootlin.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, p.zabel@pengutronix.de Cc: linux-rtc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 4/4] arm64: dts: renesas: r9a09g057h44-rzv2h-evk: Enable RTC Date: Fri, 7 Nov 2025 21:07:06 +0000 Message-ID: <20251107210706.45044-5-ovidiu.panait.rb@renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251107210706.45044-1-ovidiu.panait.rb@renesas.com> References: <20251107210706.45044-1-ovidiu.panait.rb@renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Enable RTC. Signed-off-by: Ovidiu Panait Reviewed-by: Geert Uytterhoeven --- arch/arm64/boot/dts/renesas/r9a09g057h44-rzv2h-evk.dts | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r9a09g057h44-rzv2h-evk.dts b/arch/= arm64/boot/dts/renesas/r9a09g057h44-rzv2h-evk.dts index 7fff8bea9494..99dfb40b6ea8 100644 --- a/arch/arm64/boot/dts/renesas/r9a09g057h44-rzv2h-evk.dts +++ b/arch/arm64/boot/dts/renesas/r9a09g057h44-rzv2h-evk.dts @@ -407,6 +407,10 @@ &qextal_clk { clock-frequency =3D <24000000>; }; =20 +&rtc { + status =3D "okay"; +}; + &rtxin_clk { clock-frequency =3D <32768>; }; --=20 2.51.0