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Fri, 02 May 2025 05:47:05 -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 v2 1/2] dt-bindings: timer: renesas,ostm: Document RZ/V2N (R9A09G056) support Date: Fri, 2 May 2025 13:46:26 +0100 Message-ID: <20250502124627.69644-2-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250502124627.69644-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20250502124627.69644-1-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 update the bindings to require the "resets" property for RZ/V2N by inverting the logic: all SoCs except RZ/A1 and RZ/A2 now require the "resets" property. Signed-off-by: Lad Prabhakar Reviewed-by: Geert Uytterhoeven Acked-by: Conor Dooley --- Hi Geert, I've restored the Reviewed-by tag from v1 with your suggestions applied. I hope you're okay with this. Cheers, Prabhakar =20 v1->v2: - Inveted the logic in the dt-bindings to require the "resets" property - Updated commit message - Added a Reviewed-by tag from Geert. --- .../devicetree/bindings/timer/renesas,ostm.yaml | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/Documentation/devicetree/bindings/timer/renesas,ostm.yaml b/Do= cumentation/devicetree/bindings/timer/renesas,ostm.yaml index 9ba858f094ab..0983c1efec80 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 @@ -54,12 +55,11 @@ required: if: properties: compatible: - contains: - enum: - - renesas,r9a07g043-ostm - - renesas,r9a07g044-ostm - - renesas,r9a07g054-ostm - - renesas,r9a09g057-ostm + not: + contains: + enum: + - renesas,r7s72100-ostm + - renesas,r7s9210-ostm then: required: - resets --=20 2.49.0 From nobody Mon Feb 9 13:17:44 2026 Received: from mail-wr1-f54.google.com (mail-wr1-f54.google.com [209.85.221.54]) (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 A4125253B7B; 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Fri, 02 May 2025 05:47:07 -0700 (PDT) Received: from iku.Home ([2a06:5906:61b:2d00:10cf:e432:b2b:bf99]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a099b0f16fsm2059134f8f.77.2025.05.02.05.47.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 May 2025 05:47:06 -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 v2 2/2] clocksource/drivers/renesas-ostm: Enable reprobe for all ARM64 SoCs Date: Fri, 2 May 2025 13:46:27 +0100 Message-ID: <20250502124627.69644-3-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250502124627.69644-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20250502124627.69644-1-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 Change the OSTM driver's probe condition to `CONFIG_ARM64` so that the platform driver will defer and reprobe on any ARM64 Renesas SoC once its reset controller is available. Previously, only RZ/G2L and RZ/V2H(P) were covered. By matching on `CONFIG_ARM64`, this avoids adding a new config entry for each future ARM64 Renesas SoC with OSTM IP. RZ/A1 and RZ/A2 (ARM32) are unaffected-they still use OSTM but do not define a resets property, so the deferred reprobe mechanism is unnecessary. Signed-off-by: Lad Prabhakar Reviewed-by: Geert Uytterhoeven --- Hi Geert, I've restored the Reviewed-by tag from v1 with your suggestions applied. I hope you're okay with this. Cheers, Prabhakar =20 v1->v2: - Instead of adding config for new SoC, changed the probe condition to `CONFIG_ARM64`. - Updated commit message - Added a Reviewed-by tag from Geert. --- 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..6a5785f9c9c1 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_ARM64) static int __init ostm_probe(struct platform_device *pdev) { struct device *dev =3D &pdev->dev; --=20 2.49.0