From patchwork Mon Nov 20 13:50:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Marangi X-Patchwork-Id: 13461368 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2E4B2C2BB3F for ; Mon, 20 Nov 2023 13:52:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To :From:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=1OIv0lVfVJyABdfrv/RrlKhbJ3F+wPKsxrPN5y3LB+0=; b=NiLdf4SiWwPAF1 qUaJ673qB9XGHEqdMOhKQrPc32b8OaON2hi5KGs9bd8oNmB4n8Ky76fsArkJZLxOb2e2f8x7ZZF11 0gXjpj7F3Gi+IwbqRx8iDOxIuvNljJwDKIGP4D0GzLb6obmcvjynq5SRpX6mbcCr0DRAa76neifc2 pNUELxzCJPKB5gcJrHU542yANqSO85EaFt9WqYlysJePbrQwd9lEmAZYd1kd3t57kL3XZwdmQa078 HFwf2//a9LuY66hD7cbJ9OjijkwHM3OaIWUq0VxNUXy1USehBZjeR1W6jT15ymDiOItiff0aqXv2q esahongsqPoKP9fKWdKg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1r54gJ-00CBfO-1c; Mon, 20 Nov 2023 13:51:19 +0000 Received: from mail-wm1-x32c.google.com ([2a00:1450:4864:20::32c]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1r54gE-00CBdU-1I; Mon, 20 Nov 2023 13:51:17 +0000 Received: by mail-wm1-x32c.google.com with SMTP id 5b1f17b1804b1-40a46ea95f0so18231135e9.2; Mon, 20 Nov 2023 05:51:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1700488271; x=1701093071; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:message-id:date:subject:to :from:from:to:cc:subject:date:message-id:reply-to; bh=umWEKXWFXv0eNP2vzXEwDqh3C4XXm2b3F2YK1OcVyho=; b=ePjh6ZZZnE2kqSnPkZnw1mXAvYNo1FDrc11a3JiYVraur8w1epSWpBZn7o6qx7LrFn ZiFwvGEtNkY6U/VTsMUUeOu1nT7d8EV8HY/5MVH4LCTldsK9QPW2o3jgnJwyqCA6AnU5 eOvus09jG1eByhhnmAs3RBMeGrXwoM7SqeWSWtzoaUQoXJEz7ijWpQl6h2RVtrAOe/k5 Zp7Jn/6PLhXRpJRNYEjgy2P2ioPZmNB5VJLqaVUuChVyHY96V2vlGVF4mdr+VJ0kX0WE d4DNgHXhc4fN8wwLbH0HgcnDnlZjq/mUN1Z3uW+HICr4/vKxfharag6CIGD5dE5Ag6oY hWZQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1700488271; x=1701093071; h=content-transfer-encoding:mime-version:message-id:date:subject:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=umWEKXWFXv0eNP2vzXEwDqh3C4XXm2b3F2YK1OcVyho=; b=e0iFlsRD+cgYRB6HY3QI1lOQnEpBL1+EOQSH5kzmzDpWsWINnsbR3wPqz0kXcHfREY Fy+xILnmkALFy0f7cDtuyB25iIZod7TYK9KAtAau0JrRB9xW42v7i1vctuQ9UoUpscPi hiBZmNRICTvT72h1Ecnh0924Q4MvWzH1Eu3UxQCIYVnoZajjoAQDOnIjmcXSQdkkl3lV CK/fXvk8ctLCp8rvNCT3Q+xvOCNNLeSUU8gAf/hI1hhoN+gPUSz59ptKB0LXfnk68wt8 c0Tx/M1yAl/f4qoUaGJF7Hn+Q57iaMjJyxrPj69phkpDS5rRK3WSCqM2QVMimecgXwVc cguA== X-Gm-Message-State: AOJu0YzxDaKL0GLgKEDEdK1DnlZSyTbXd87zTd57qP8LXBURXrjwmfpQ /N9y5i+pjtlH5O/wNi572PQ= X-Google-Smtp-Source: AGHT+IG1J8cbmxkv7bK3mr7U//mrN6TW30Hcy9cOIwzVFGvTJowIC50goBaskga2xCFUBmOawihy0w== X-Received: by 2002:a05:600c:1392:b0:40a:69f2:3b7c with SMTP id u18-20020a05600c139200b0040a69f23b7cmr7002035wmf.16.1700488270960; Mon, 20 Nov 2023 05:51:10 -0800 (PST) Received: from localhost.localdomain (93-34-89-13.ip49.fastwebnet.it. [93.34.89.13]) by smtp.googlemail.com with ESMTPSA id j33-20020a05600c1c2100b0040772934b12sm18205846wms.7.2023.11.20.05.51.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Nov 2023 05:51:10 -0800 (PST) From: Christian Marangi To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andy Gross , Bjorn Andersson , Konrad Dybcio , Andrew Lunn , Heiner Kallweit , Russell King , Florian Fainelli , Broadcom internal kernel review list , Daniel Golle , Qingfang Deng , SkyLake Huang , Matthias Brugger , AngeloGioacchino Del Regno , David Epping , Vladimir Oltean , Christian Marangi , "Russell King (Oracle)" , Harini Katakam , Simon Horman , Robert Marko , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [net-next RFC PATCH 00/14] net: phy: Support DT PHY package Date: Mon, 20 Nov 2023 14:50:27 +0100 Message-Id: <20231120135041.15259-1-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.40.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231120_055114_462043_4B0C9DD6 X-CRM114-Status: GOOD ( 19.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Idea of this big series is to introduce the concept of PHY package in DT and generalize the support of it by PHY driver. The concept of PHY package is nothing new and is already a thing in the kernel with the API phy_package_join/leave/read/write. The main idea of those API is to permit the PHY to have a shared global data and to run probe/config only once for the PHY package. There are various example of this already in the kernel with the mscc, bcm54140 mediatek ge and micrle driver and they all follow the same pattern. What is currently lacking is describing this in DT and better reference the PHY in charge of global configuration of the PHY package. For the already present PHY, the implementation is simple enough with only one PHY having the required regs to apply global configuration. This can be ok for simple PHY package but some Qcom PHY package on ""modern"" SoC have more complex implementation. One example is the PHY for qca807x where some global regs are present in the so-called "combo" port and everything about psgmii calibration is placed in a 5th port in the PHY package. Given these additional thing, the original phy_package API are extended with support for multiple global PHY for configuration. Each PHY driver will have an enum of the ID for the global PHY to reference and is required to pass to the read/write function. On top of this, it's added correct DT support for describing PHY package. One example is this: ethernet-phy-package { compatible = "ethernet-phy-package"; #address-cells = <1>; #size-cells = <0>; global-phys = <&phy4>; global-phy-names = "base"; ethernet-phy@1 { compatible = "ethernet-phy-ieee802.3-c22"; reg = <1>; }; phy4: ethernet-phy@4 { compatible = "ethernet-phy-ieee802.3-c22"; reg = <4>; }; }; The mdio parse functions are changed to address for this additional special node, the function is changed to simply detect this node and search also in this. If this is detected phy core will join each PHY present in the node and use (if defined) the additional info in the PHY driver to probe/config once the PHY package. Some PHY package also supports a single phy-mode for every PHY in the PHY package. This is also supported and can be described in DT by defining the phy-mode in the PHY package node. I hope this implementation is clean enough as I expect more and more of these configuration to appear in the future. Christian Marangi (12): net: phy: extend PHY package API to support multiple global address dt-bindings: net: move PHY modes to common PHY mode types definition dt-bindings: net: document ethernet PHY package nodes net: phy: add initial support for PHY package in DT net: phy: add support for named global PHY in DT PHY package net: phy: add support for shared priv data size for PHY package in DT net: phy: add support for driver specific PHY package probe/config net: phy: add support for PHY package interface mode net: phy: move mmd_phy_indirect to generic header net: phy: add support for PHY package MMD read/write dt-bindings: net: Document Qcom QCA807x PHY package net: phy: qca807x: Add support for configurable LED Robert Marko (2): dt-bindings: net: add QCA807x PHY defines net: phy: add Qualcom QCA807x driver .../bindings/net/ethernet-controller.yaml | 47 +- .../bindings/net/ethernet-phy-mode-types.yaml | 132 ++ .../bindings/net/ethernet-phy-package.yaml | 86 ++ .../devicetree/bindings/net/qcom,qca807x.yaml | 143 ++ drivers/net/mdio/of_mdio.c | 60 +- drivers/net/phy/Kconfig | 7 + drivers/net/phy/Makefile | 1 + drivers/net/phy/bcm54140.c | 23 +- drivers/net/phy/mdio_bus.c | 33 +- drivers/net/phy/mediatek-ge-soc.c | 11 +- drivers/net/phy/micrel.c | 13 +- drivers/net/phy/mscc/mscc.h | 7 + drivers/net/phy/mscc/mscc_main.c | 16 +- drivers/net/phy/phy-core.c | 14 - drivers/net/phy/phy_device.c | 218 ++- drivers/net/phy/qca807x.c | 1232 +++++++++++++++++ include/dt-bindings/net/qcom-qca807x.h | 45 + include/linux/phy.h | 178 ++- 18 files changed, 2119 insertions(+), 147 deletions(-) create mode 100644 Documentation/devicetree/bindings/net/ethernet-phy-mode-types.yaml create mode 100644 Documentation/devicetree/bindings/net/ethernet-phy-package.yaml create mode 100644 Documentation/devicetree/bindings/net/qcom,qca807x.yaml create mode 100644 drivers/net/phy/qca807x.c create mode 100644 include/dt-bindings/net/qcom-qca807x.h