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Thu, 01 May 2025 05:37:17 -0700 (PDT) From: Prabhakar X-Google-Original-From: Prabhakar To: Daniel Lezcano , Thomas Gleixner , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Coquelin , Alexandre Torgue , Geert Uytterhoeven , Magnus Damm , Chris Brandt Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-renesas-soc@vger.kernel.org, Prabhakar , Biju Das , Fabrizio Castro , Lad Prabhakar Subject: [PATCH 1/2] dt-bindings: timer: renesas,ostm: Document RZ/V2N (R9A09G056) support Date: Thu, 1 May 2025 13:37:08 +0100 Message-ID: <20250501123709.56513-2-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250501123709.56513-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20250501123709.56513-1-prabhakar.mahadev-lad.rj@bp.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" From: Lad Prabhakar Document support for the Renesas OS Timer (OSTM) found on the Renesas RZ/V2N (R9A09G056) SoC. The OSTM IP on RZ/V2N is identical to that on other RZ families, so no driver changes are required as `renesas,ostm` will be used as fallback compatible. Also include RZ/V2N in the list of compatibles for which the `resets` property is required. Signed-off-by: Lad Prabhakar Reviewed-by: Geert Uytterhoeven --- Documentation/devicetree/bindings/timer/renesas,ostm.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/timer/renesas,ostm.yaml b/Do= cumentation/devicetree/bindings/timer/renesas,ostm.yaml index 9ba858f094ab..bc421882cbc2 100644 --- a/Documentation/devicetree/bindings/timer/renesas,ostm.yaml +++ b/Documentation/devicetree/bindings/timer/renesas,ostm.yaml @@ -26,6 +26,7 @@ properties: - renesas,r9a07g043-ostm # RZ/G2UL and RZ/Five - renesas,r9a07g044-ostm # RZ/G2{L,LC} - renesas,r9a07g054-ostm # RZ/V2L + - renesas,r9a09g056-ostm # RZ/V2N - renesas,r9a09g057-ostm # RZ/V2H(P) - const: renesas,ostm # Generic =20 @@ -59,6 +60,7 @@ if: - renesas,r9a07g043-ostm - renesas,r9a07g044-ostm - renesas,r9a07g054-ostm + - renesas,r9a09g056-ostm - renesas,r9a09g057-ostm then: required: --=20 2.49.0 From nobody Mon Feb 9 13:37:43 2026 Received: from mail-wm1-f48.google.com (mail-wm1-f48.google.com [209.85.128.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E7147224AFC; 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Thu, 01 May 2025 05:37:19 -0700 (PDT) Received: from iku.Home ([2a06:5906:61b:2d00:f0e:4490:d947:2c92]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-441b89cc469sm11144765e9.6.2025.05.01.05.37.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 May 2025 05:37:18 -0700 (PDT) From: Prabhakar X-Google-Original-From: Prabhakar To: Daniel Lezcano , Thomas Gleixner , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Coquelin , Alexandre Torgue , Geert Uytterhoeven , Magnus Damm , Chris Brandt Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-renesas-soc@vger.kernel.org, Prabhakar , Biju Das , Fabrizio Castro , Lad Prabhakar Subject: [PATCH 2/2] clocksource/drivers/renesas-ostm: Enable OSTM reprobe for RZ/V2N SoC Date: Thu, 1 May 2025 13:37:09 +0100 Message-ID: <20250501123709.56513-3-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250501123709.56513-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20250501123709.56513-1-prabhakar.mahadev-lad.rj@bp.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" From: Lad Prabhakar Add CONFIG_ARCH_R9A09G056 to the probe condition in renesas-ostm.c so that the OSTM platform driver can reprobe for the RZ/V2N (R9A09G056) SoC. Like RZ/G2L and RZ/V2H(P), the RZ/V2N contains the Generic Timer Module (OSTM) which requires its reset to be deasserted before any register access. Enabling the platform_device probe path ensures the driver defers until resets are available. Signed-off-by: Lad Prabhakar Reviewed-by: Geert Uytterhoeven --- drivers/clocksource/renesas-ostm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clocksource/renesas-ostm.c b/drivers/clocksource/renes= as-ostm.c index 3fcbd02b2483..c9919811542e 100644 --- a/drivers/clocksource/renesas-ostm.c +++ b/drivers/clocksource/renesas-ostm.c @@ -225,7 +225,7 @@ static int __init ostm_init(struct device_node *np) =20 TIMER_OF_DECLARE(ostm, "renesas,ostm", ostm_init); =20 -#if defined(CONFIG_ARCH_RZG2L) || defined(CONFIG_ARCH_R9A09G057) +#if defined(CONFIG_ARCH_RZG2L) || defined(CONFIG_ARCH_R9A09G057) || define= d(CONFIG_ARCH_R9A09G056) static int __init ostm_probe(struct platform_device *pdev) { struct device *dev =3D &pdev->dev; --=20 2.49.0