From nobody Tue Oct 7 10:12:48 2025 Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B99322E9EC3; Fri, 11 Jul 2025 14:58:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.112 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752245888; cv=pass; b=u+fp5BfQn+olsRJL9OlAq0WyiLzhWLjouWc/KZjkfu/TeL6CwNArPzsUmRBRgfaajtp3MfxQNQ8QPp8vvrGdU5diiEFy1ZnSbsuSDpKV7Da4quTFlqHNv+uxrjPdT8tESi/uHlZLDnqEivYFhnwgQJ97lXVGWWR3bVkhrFqFVqg= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752245888; c=relaxed/simple; bh=b3eBR1H4nBDi8jkofVxCLTt5N7YnGgYhoVIt7L4QLUM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=XI9uZp6oa5JHiSmd76tzAsB3fvBNkT9iOq60Pa/I194bMICV8W6U7kpm+p509n3eygKd7QmiRgmm5FNxQs07vnAu3n8mT9qS0M9jcZbnPDLUT+kLU9tWc04M1XbkR+O6M7QImYFZZrE8wRGZeftBnK6AUc880cxiC5fWqw3tLwg= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b=NQrPo/RO; arc=pass smtp.client-ip=136.143.188.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b="NQrPo/RO" ARC-Seal: i=1; a=rsa-sha256; t=1752245869; cv=none; d=zohomail.com; s=zohoarc; b=gUISBzJNp/J3+ipDHhCGxFk4104DqECAChH3INJYk5klQJgaqZnvTQZqQYRzhxmCFyi9ncNOinnt9z6fuUJNaBpBhChpUH0BuuggJD2Rzhb1YoZxmqIxYHrTHzcBYkD6t2MlhJghqJHiB9kYl90rnzXloduKPJDo1rzEvUFjeyc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1752245869; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=9PEARQKKf/9p+jlcrAMfNzhevLXRjyodsZ6OZ49W5QA=; b=evHJ8Cyt4Qe7MK595+5A40U0HWg91GOOuRU7UvGFDQzYQS+g+pyyetQ2GWgxfz5U7bN40GhgqP9rRTcg9XTIcfw6QP28voIZOJazGP/n8oy8F2GpO8wnUvDdBEN9K/4yGhvviEc3pex2ggfUrSO1/LJDLq/gY3BPrTQjNpsntqY= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=nicolas.frattaroli@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1752245869; s=zohomail; d=collabora.com; i=nicolas.frattaroli@collabora.com; h=From:From:Date:Date:Subject:Subject:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Message-Id:References:In-Reply-To:To:To:Cc:Cc:Reply-To; bh=9PEARQKKf/9p+jlcrAMfNzhevLXRjyodsZ6OZ49W5QA=; b=NQrPo/RO3TTaNvHv8m6D3Tbwyn+2J28Xf4GAYryCvri/oUV3aDFalTqMywaaoWH1 tgiw2SmmnMNEEdXCdVWCBAr0qJhYfTEP3U6DDCJdB8GUrUPYOGqo4JrdLjqN8ilYLa5 vFRpaJxp/Vb7/9mgrf4tVTaXO6YvwyWBUl/wgnPQ= Received: by mx.zohomail.com with SMTPS id 175224586740314.377934690162078; Fri, 11 Jul 2025 07:57:47 -0700 (PDT) From: Nicolas Frattaroli Date: Fri, 11 Jul 2025 16:57:33 +0200 Subject: [PATCH 1/5] dt-bindings: mfd: syscon: Add mt8196 fdvfs syscons Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250711-mt8196-cpufreq-v1-1-e1b0a3b4ac61@collabora.com> References: <20250711-mt8196-cpufreq-v1-0-e1b0a3b4ac61@collabora.com> In-Reply-To: <20250711-mt8196-cpufreq-v1-0-e1b0a3b4ac61@collabora.com> To: Lee Jones , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , "Rafael J. Wysocki" , Viresh Kumar , Hector Yuan Cc: kernel@collabora.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-pm@vger.kernel.org, Nicolas Frattaroli X-Mailer: b4 0.14.2 The MT8196 SoC uses two syscon ranges for CPU DVFS that are separate from each other. One, mt8196-fdvfs-config, is used to check for a magic number at that memory address to verify that fdvfs should be used. The other, mt8196-fdvfs, is used to configure the desired frequency for the DVFS controller for each CPU core. Signed-off-by: Nicolas Frattaroli --- Documentation/devicetree/bindings/mfd/syscon.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/mfd/syscon.yaml b/Documentat= ion/devicetree/bindings/mfd/syscon.yaml index 27672adeb1fedb7c81b8ae86c35f4f3b26d5516f..5ee49d2ba0cdb72dd697a0fd71c= 8416ad4fd2c1e 100644 --- a/Documentation/devicetree/bindings/mfd/syscon.yaml +++ b/Documentation/devicetree/bindings/mfd/syscon.yaml @@ -88,6 +88,8 @@ select: - mediatek,mt8135-pctl-a-syscfg - mediatek,mt8135-pctl-b-syscfg - mediatek,mt8173-pctl-a-syscfg + - mediatek,mt8196-fdvfs + - mediatek,mt8196-fdvfs-config - mediatek,mt8365-syscfg - microchip,lan966x-cpu-syscon - microchip,mpfs-sysreg-scb @@ -194,6 +196,8 @@ properties: - mediatek,mt8135-pctl-a-syscfg - mediatek,mt8135-pctl-b-syscfg - mediatek,mt8173-pctl-a-syscfg + - mediatek,mt8196-fdvfs + - mediatek,mt8196-fdvfs-config - mediatek,mt8365-infracfg-nao - mediatek,mt8365-syscfg - microchip,lan966x-cpu-syscon --=20 2.50.0