From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from gloria.sntech.de (gloria.sntech.de [185.11.138.130]) (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 6F2B9158DCD; Wed, 28 Aug 2024 10:15:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.11.138.130 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724840120; cv=none; b=qc/ltWgfrlc7D33fkbG41tWDfYx5ZxWtW91FQK9VaB9fhFso6+3hYLW/GqCIgKfUGMD7j6IfxI4CLJ7OnOg7d8bfQeT5C+jl51BkXaJo1Zdrpsq/3RE20PjylM73m6MS+JbZmzuZuQA054J+LkayeLqVp6oV51SGtrRwZV0p8zE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724840120; c=relaxed/simple; bh=hGf2gkLd69NQ7KFBnipSAkYCVhNpqHakg4YOOi15HAE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rQ4S83MIg8WGR8YxllrxbUhe2rfJqemSPzYHkeZETZASwTZS/1fnncR9T97WfQQ1W97nYnfIdxwC6ikCAouSGIB8RvHbeaXy1SzM6c1D2+IfDrfFoo9o30Q4aHhWC+JVwBi/b3dSbg5jda8/k/HTvVynXIzIFopAmlEWGh0NmmM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sntech.de; spf=pass smtp.mailfrom=sntech.de; dkim=pass (2048-bit key) header.d=sntech.de header.i=@sntech.de header.b=Ng3MEAGJ; arc=none smtp.client-ip=185.11.138.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sntech.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sntech.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sntech.de header.i=@sntech.de header.b="Ng3MEAGJ" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=H2K0zAoArSYqxte5X2D4PhODsFIDA8efuofXW5WP5do=; b=Ng3MEAGJ2czRhxq3mImVOHknWx TEbw0Nm6FsoEYe7ymgW0ivBDzvWutrqN32bLfl6BKPBVNDvnwo35StNPtfpifr4ziIx1GQLOqpjGv omypbq5QJk+T/Npzv5sd6zHn45pL2Y/d/LuHx8ogdUi3lpZoZrIN0Pn/jsoSUe8oe5GI0vy+95DkD inFffYhQIrTtO9uLNbqNbakQ2mDFPgNfDV6MxOx8j7Fl/Pt8RzW6fwz3ySL+PNk1KgflXSRNUXe3i mkA7Y2pE+ahLJaxsK8lrVDVGbnJYGsJO0xqeiuOEL1FYb2ujXU5RNU2HRs8GbD5IDwCctGL4n9SRo B57WXp2w==; Received: from i5e8616cd.versanet.de ([94.134.22.205] helo=phil.lan) by gloria.sntech.de with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1sjFhs-0004M3-94; Wed, 28 Aug 2024 12:15:16 +0200 From: Heiko Stuebner To: mturquette@baylibre.com, sboyd@kernel.org Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-clk@vger.kernel.org, heiko@sntech.de, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org Subject: [PATCH v3 1/5] dt-bindings: clocks: add binding for gated-fixed-clocks Date: Wed, 28 Aug 2024 12:14:59 +0200 Message-ID: <20240828101503.1478491-2-heiko@sntech.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240828101503.1478491-1-heiko@sntech.de> References: <20240828101503.1478491-1-heiko@sntech.de> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit In contrast to fixed clocks that are described as ungateable, boards sometimes use additional oscillators for things like PCIe reference clocks, that need actual supplies to get enabled and enable-gpios to be toggled for them to work. This adds a binding for such oscillators that are not configurable themself, but need to handle supplies for them to work. In schematics they often can be seen as ---------------- Enable - | 100MHz,3.3V, | - VDD | 3225 | GND - | | - OUT ---------------- or similar. The enable pin might be separate but can also just be tied to the vdd supply, hence it is optional in the binding. Signed-off-by: Heiko Stuebner --- .../bindings/clock/gated-fixed-clock.yaml | 49 +++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/gated-fixed-clock.yaml diff --git a/Documentation/devicetree/bindings/clock/gated-fixed-clock.yaml b/Documentation/devicetree/bindings/clock/gated-fixed-clock.yaml new file mode 100644 index 000000000000..76d264770d35 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/gated-fixed-clock.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/gated-fixed-clock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Gated Fixed clock + +maintainers: + - Heiko Stuebner + +properties: + compatible: + const: gated-fixed-clock + + "#clock-cells": + const: 0 + + clock-frequency: true + + clock-output-names: + maxItems: 1 + + enable-gpios: + description: + Contains a single GPIO specifier for the GPIO that enables and disables + the oscillator. + maxItems: 1 + + vdd-supply: + description: handle of the regulator that provides the supply voltage + +required: + - compatible + - "#clock-cells" + - clock-frequency + - vdd-supply + +additionalProperties: false + +examples: + - | + voltage-oscillator { + compatible = "gated-fixed-clock"; + #clock-cells = <0>; + clock-frequency = <1000000000>; + vdd-supply = <®_vdd>; + }; +... -- 2.43.0