From patchwork Tue Jan 30 00:35:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Marangi X-Patchwork-Id: 1892596 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20230601 header.b=b8Mu22Ys; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=147.75.199.223; helo=ny.mirrors.kernel.org; envelope-from=devicetree+bounces-36493-incoming-dt=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from ny.mirrors.kernel.org (ny.mirrors.kernel.org [147.75.199.223]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4TP5nk385xz23g2 for ; Tue, 30 Jan 2024 11:36:26 +1100 (AEDT) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id 66F081C21A62 for ; Tue, 30 Jan 2024 00:36:24 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 69C012C868; Tue, 30 Jan 2024 00:36:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="b8Mu22Ys" X-Original-To: devicetree@vger.kernel.org Received: from mail-wr1-f42.google.com (mail-wr1-f42.google.com [209.85.221.42]) (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 50C2D14F70; Tue, 30 Jan 2024 00:36:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.42 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706574966; cv=none; b=SPjh4tPBDhZJ2Sd81cmM+mZ2px8JiqJmzn/9KgpGHYzldClrLBtqWyr6gF/ka1A0ItIXNrP1mKEnFS56/pRMGvCk6dIkaixDtzYOfdP4T9Ki2AdMf2DxSpdz0tl4i3mJo/X211Y2jDpsfoLnkAaJmag+Nofqpnwqe6cIKYEFxgE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706574966; c=relaxed/simple; bh=ye34zMbl/QLi0u3MaSPXOmlJeFl9PUpZ9o0/z8YiMNU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=B5PCROH58CGEl7Li7yoRKhUI44v854lGtzOTd6akgnd+K/hk97fzDRl/wSi4j8kVlS35x8UiwyXC/oUYDLc708W5tuTpuumA7SJnVT4uTn7GsfKKV1bGGI9u56SPOqnwi+PMdaa2W8+PYKgxbh6XzG07lNcyEVBAIYcpl6YWqhw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=b8Mu22Ys; arc=none smtp.client-ip=209.85.221.42 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-wr1-f42.google.com with SMTP id ffacd0b85a97d-33ae3154cf8so1623605f8f.3; Mon, 29 Jan 2024 16:36:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1706574962; x=1707179762; 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=t1kG9myj9Lva9ka/USySAgGs9YBQNCRf+gxiz/F3DH0=; b=b8Mu22Ysa7M7UXc3j03as7cABv+7Ys041fbHaPq9yeb7qhqB+swelK1Oedd1iy/Ffs 2lxuGsOCFOOsUz3PbU3hOhsWijHWusOhAcn+eMOt5LbdMSPXrqQqthDNeGeLfVD6zSz9 atnq0zDn28JbE9LhPovRCTLjxK6iX+y+EqajJ+vRmamm/ZcvrDYt22rFIozMhLLnia0C RWHhiCGPM0G6YRYux/vNsTGGOwhlgSfnJIfK9N3LlAyzcjAlhoTdamIMAE00iBW9Q4ft qyLEq2qAbgOQqcgM3VBN0I+A0nwBMI/pytnpiRixb6bGpVTaTQ6vCGTL1PjW9yVsxZcm EDyg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706574962; x=1707179762; 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=t1kG9myj9Lva9ka/USySAgGs9YBQNCRf+gxiz/F3DH0=; b=sYKJkdWNBTeFzQElo7cYrpPdXZcsctgHY5AzKWO6dkg+LuSYaK6hXsmQj0PIDtL4ZE 9635AtgTabLmNgKen4wDy+8e59gQDg7j6r/yNYnKUUulveys3fAHV2pAxyBztDos0A/q 1ps6DIyD/h/k+HY4TIaLkrnD/YixW4ybFpIVfa66qz7u6PbEkfwJG00feEZt916taNwq CD0FZMhs32pmmpsNRLXbhXwSVGCRi7rdhdN4vltk95JNiZRiDQzlxmDDnyxTd9+kwIiX ieUssrWciLdpzT7mtViBc5/ONH5fst+AYLKUgOjGAPghzEbFxYZJ+Sm7FEWR332JDQiV X2+A== X-Gm-Message-State: AOJu0YxTGeAT9g5GaH+IC2+dGJDiTrk10uePDwvjCVlTe4rGfs7Cpd9r kfNLjhLjvwXgsMihgqJ7xB5CpRzKjfGVkRcXjvGy02BTrJ/i1LDT X-Google-Smtp-Source: AGHT+IGo/hs0v3RO2KlZSNUF83Bbqq3flwP55Gk7fwh2TkiN64Z6WvH1hJOj/ioiBe3qMHIdKR3yIA== X-Received: by 2002:a5d:51ca:0:b0:33a:ee39:5b4a with SMTP id n10-20020a5d51ca000000b0033aee395b4amr3110196wrv.36.1706574962304; Mon, 29 Jan 2024 16:36:02 -0800 (PST) Received: from localhost.localdomain (93-34-89-13.ip49.fastwebnet.it. [93.34.89.13]) by smtp.googlemail.com with ESMTPSA id l10-20020a056000022a00b0033af350fb88sm2542167wrz.25.2024.01.29.16.36.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Jan 2024 16:36:01 -0800 (PST) From: Christian Marangi To: Andy Gross , Bjorn Andersson , Konrad Dybcio , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andrew Lunn , Heiner Kallweit , Russell King , Robert Marko , linux-arm-msm@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Jie Luo Cc: Christian Marangi Subject: [net-next PATCH v2 1/3] dt-bindings: net: ipq4019-mdio: document now supported clock-frequency Date: Tue, 30 Jan 2024 01:35:20 +0100 Message-ID: <20240130003546.1546-2-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240130003546.1546-1-ansuelsmth@gmail.com> References: <20240130003546.1546-1-ansuelsmth@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Document support for clock-frequency and add details on why this property is needed and what values are supported. From internal documentation, while other values are supported, the correct function of the MDIO bus is not assured hence add only the suggested supported values to the property enum. Signed-off-by: Christian Marangi Reviewed-by: Andrew Lunn --- .../bindings/net/qcom,ipq4019-mdio.yaml | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml b/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml index 3407e909e8a7..0029e197a825 100644 --- a/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml +++ b/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml @@ -44,6 +44,21 @@ properties: items: - const: gcc_mdio_ahb_clk + clock-frequency: + description: + The MDIO bus clock that must be output by the MDIO bus hardware, if + absent, the default hardware values are used. + + MDC rate is feed by an external clock (fixed 100MHz) and is divider + internally. The default divider is /256 resulting in the default rate + applied of 390KHz. + + To follow 802.3 standard that instruct up to 2.5MHz by default, if + this property is not declared and the divider is set to /256, by + default 1.5625Mhz is select. + enum: [ 390625, 781250, 1562500, 3125000, 6250000, 12500000 ] + default: 1562500 + required: - compatible - reg