From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f46.google.com (mail-pj1-f46.google.com [209.85.216.46]) (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 E03B3263F4A for ; Mon, 18 Aug 2025 04:11:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.46 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755490284; cv=none; b=emGweoF4LZgdnAz9Iw9zfKCtLlQ9gBaOqaz7IpRs99LpFeK/UYasfGiEwsQ3eY8tC2LAHPg0CTKFd/Xy8lPeMtI0ozcX3Q7DZK9JVxL9xhGw2F9Z91wy1NPHdi/gHLQpOJWapSeC37AeUpmNtT8QVCKuRkHmmPzpX9rk/hILuMA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755490284; c=relaxed/simple; bh=gqZpMXPd6DL/+kfXUibwUL8SSmPMehps7IgssTY7RG4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=j2HLx99j0Trfy7xkSAXVHj5J//wMwTpwjh9ogxr8rd2GJosSBei4L9bgIKU64XTeYAAD/r2CYEQcbI2bc/vqf6gWq7Gnor/ZE0z+CsJqBtWU5v029lrqNpu+jOeiJrzAIpWmDVamxeAL7N266HIGnK0KnOGDuNRTaERhpMnwafk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ventanamicro.com; spf=pass smtp.mailfrom=ventanamicro.com; dkim=pass (2048-bit key) header.d=ventanamicro.com header.i=@ventanamicro.com header.b=H+Nk7L+e; arc=none smtp.client-ip=209.85.216.46 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ventanamicro.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ventanamicro.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ventanamicro.com header.i=@ventanamicro.com header.b="H+Nk7L+e" Received: by mail-pj1-f46.google.com with SMTP id 98e67ed59e1d1-32326793a85so2776450a91.1 for ; Sun, 17 Aug 2025 21:11:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1755490282; x=1756095082; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=zMRC5c9xXUgo6eKv4jcoCHH6TENqo9cqAPQxW1Kbofo=; b=H+Nk7L+efF8m2lrCt/Ho1n/pSQasXvNVn+SehJrrfZ7YJP0hDvMEa6bXigGlfI9qPk p/Q0lUa1JrKxvSC4Qu9fs31uoXGBiTlKyfIL0ENWm0dGhSSO+cv2ucdfudOl/payrQ6O sofAfu/h3mqB9+YXD10TCmZMkP4hEt4kqU87sCw2NNZpTXzz6tgRYHPHdZ4xp3mdgi1V zOQrAJJfZFxkYW+IVHdp6Nxw5cxKF/DRfPV3XxVi2/kjhXDGJWqT1VkvVk9Zmrc/3iHm EDDO+2f9Z3z8txPBYEnkHNPxA8z7A4uRP+a718Y6LtmiqO9cy46nxqgzqT/8RRG/4T9m lang== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755490282; x=1756095082; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=zMRC5c9xXUgo6eKv4jcoCHH6TENqo9cqAPQxW1Kbofo=; b=kIs7+6x45D3vwjUM51eJIi1nCoiRI870z8mnysy/7eQl5QkT7BKD15tPCJ5oSXqyXE uKLG6d+i7XYxwfeySQ9KHp1SHSdbb9Oa/rOMhaIR0m9pespRhfVrnCg8U86JA8rPH3Z0 P8UzFjEgXclxHUJJbXE9/+RGVd6PCAFDm19wossnSOI2c63cOQfHs9OWOVRp4zfCsKE9 GJ6AMCMEbpjVbjjWVFpDlwMPoclxQy4C4NyIQZkzhPqQCRhkbTRZjESsndQrLj58HF9p iQlTbhodmmS21Beg3zaI1ykbmNSNCq2e2nJLq81PLdtCzFIvT5pRW/IdAV7TQTLiqBFs 4ZcA== X-Forwarded-Encrypted: i=1; AJvYcCXk6LYKeBlJC2E8IysISThGleMqQxUgLc+/IH/OYs4/SRMpfTSEtLhn0N4ifz3HAtekq4JtcniGxEpx@vger.kernel.org X-Gm-Message-State: AOJu0YydvXiZ0Pi0COxp23yAWDVjFF3D2ZxguCBMlv4faN5K08oITkGx P+5H19Np91VrxPA2rQnHI4n2r2iU1GlGegqLBpR7q2/mwolmBKFpbBP+wheGXd8uIvc= X-Gm-Gg: ASbGncsFaIFaZTK6bMu4BfuiJHalDVom3QxZva+Gk5NJp8UHeflTh4aNBzCCK9y3DTz KI1xocn6hU+lsnHq9mghkofbSynjC+8PTnOwVRsWGwJGhmYuMR1LSAhUVZM4gKPr0fTptZgtNeN LQ4irJdB7jRghZWtUSYxG5wB2FxpGbTfxwYY1W8YJFVBVV4A5e2ULBnvTWWnV+oZrD0ikmpQUaT aiW5IdD9VlBID6BrdUxStwl5sBOq+wrVNx5rpcjjzECudl1bQtQMHTt4qMjanQMlHa4GQ9qzi18 KL5YsOYe5AyjXhutsWz1yPesFUwRaA537uqcd+/JDWMLCzFBrVmoYIESc84/xw/lxp7RUwmjkus vt0VwyTq48FtsewG/n5W1Y+EQ4jkkKDMkPlgpqo+rXdcZYCXKQW457g== X-Google-Smtp-Source: AGHT+IHP6UbREeetpnCWOLmWDeaEVguVbF9ClSYn1V6am/aKBqluAMuYoaNtdrC+UjrhiXEkm5ie1w== X-Received: by 2002:a17:90b:180d:b0:315:c77b:37d6 with SMTP id 98e67ed59e1d1-3234dc7ba5fmr10093522a91.23.1755490282031; Sun, 17 Aug 2025 21:11:22 -0700 (PDT) Received: from localhost.localdomain ([122.171.17.53]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-32343c70356sm6560972a91.25.2025.08.17.21.11.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 17 Aug 2025 21:11:21 -0700 (PDT) From: Anup Patel To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jassi Brar , Thomas Gleixner , "Rafael J . Wysocki" , Mika Westerberg , Andy Shevchenko , Linus Walleij , Bartosz Golaszewski , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Cc: Palmer Dabbelt , Paul Walmsley , Alexandre Ghiti , Len Brown , Sunil V L , Rahul Pathak , Leyfoon Tan , Atish Patra , Andrew Jones , Samuel Holland , Anup Patel , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Anup Patel , Conor Dooley Subject: [PATCH v10 09/24] dt-bindings: clock: Add RPMI clock service controller bindings Date: Mon, 18 Aug 2025 09:39:05 +0530 Message-ID: <20250818040920.272664-10-apatel@ventanamicro.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250818040920.272664-1-apatel@ventanamicro.com> References: <20250818040920.272664-1-apatel@ventanamicro.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add device tree bindings for the RPMI clock service group based controller for the supervisor software. The RPMI clock service group is defined by the RISC-V platform management interface (RPMI) specification. Reviewed-by: Conor Dooley Reviewed-by: Stephen Boyd Signed-off-by: Anup Patel --- .../bindings/clock/riscv,rpmi-clock.yaml | 64 +++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/riscv,rpmi-clock.yaml diff --git a/Documentation/devicetree/bindings/clock/riscv,rpmi-clock.yaml b/Documentation/devicetree/bindings/clock/riscv,rpmi-clock.yaml new file mode 100644 index 000000000000..5d62bf8215c8 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/riscv,rpmi-clock.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/riscv,rpmi-clock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: RISC-V RPMI clock service group based clock controller + +maintainers: + - Anup Patel + +description: | + The RISC-V Platform Management Interface (RPMI) [1] defines a + messaging protocol which is modular and extensible. The supervisor + software can send/receive RPMI messages via SBI MPXY extension [2] + or some dedicated supervisor-mode RPMI transport. + + The RPMI specification [1] defines clock service group for accessing + system clocks managed by a platform microcontroller. The supervisor + software can access RPMI clock service group via SBI MPXY channel or + some dedicated supervisor-mode RPMI transport. + + =========================================== + References + =========================================== + + [1] RISC-V Platform Management Interface (RPMI) v1.0 (or higher) + https://github.com/riscv-non-isa/riscv-rpmi/releases + + [2] RISC-V Supervisor Binary Interface (SBI) v3.0 (or higher) + https://github.com/riscv-non-isa/riscv-sbi-doc/releases + +properties: + compatible: + description: + Intended for use by the supervisor software. + const: riscv,rpmi-clock + + mboxes: + maxItems: 1 + description: + Mailbox channel of the underlying RPMI transport or SBI message proxy channel. + + "#clock-cells": + const: 1 + description: + Platform specific CLOCK_ID as defined by the RISC-V Platform Management + Interface (RPMI) specification. + +required: + - compatible + - mboxes + - "#clock-cells" + +additionalProperties: false + +examples: + - | + clock-controller { + compatible = "riscv,rpmi-clock"; + mboxes = <&mpxy_mbox 0x1000 0x0>; + #clock-cells = <1>; + }; +... -- 2.43.0