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[93.34.89.13]) by smtp.googlemail.com with ESMTPSA id z9-20020a2e3509000000b002cdf37ee19dsm2437978ljz.7.2024.02.01.07.18.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Feb 2024 07:18:11 -0800 (PST) From: Christian Marangi To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Andrew Lunn , Heiner Kallweit , Russell King , Frank Rowand , Christian Marangi , Robert Marko , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org Subject: [net-next PATCH v5 0/9] net: phy: Introduce PHY Package concept Date: Thu, 1 Feb 2024 16:17:26 +0100 Message-ID: <20240201151747.7524-1-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1789710295824046236 X-GMAIL-MSGID: 1789710295824046236 Idea of this big series is to introduce the concept of PHY package in DT and give PHY drivers a way to derive the base address from DT. 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. What is currently lacking is describing this in DT and better reference a base address to calculate offset from. In the scenario of a PHY package where multiple address are used and there isn't a way to get the base address of the PHY package from some regs, getting the information from DT is the only way. A possible example to this problem is this: ethernet-phy-package@0 { compatible = "qcom,qca807x-package"; #address-cells = <1>; #size-cells = <0>; reg = <0>; qcom,package-mode = "qsgmii"; ethernet-phy@1 { reg = <1>; }; phy4: ethernet-phy@4 { 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. (we match the node name to be "ethernet-phy-package") PHY driver can then use introduced helper of_phy_package_join to join the PHY to the PHY package and derive the base address from DT. The base addr + offset implementation adds additional complexity to the code but I think will make DT reviwers happier since the absolute reg implementation might make things confusing with having double reg in the DTS. I'm open to any alternative implementation and also to revert this to the absolute implementation. Changes v5: - Rebase on top of net-next - Change implementation to base addr + offset in subnode - Adapt to all the changes and cleanup done to at803x Changes v4: - Rework DT implementation - Drop of autojoin support and rework to simple helper - Rework PHY driver to the new implementation - Add compatible for qca807x package - Further cleanup patches Changes v3: - Add back compatible implementation - Detach patch that can be handled separately (phy_package_mmd, phy_package extended) - Rework code to new simplified implementation with base addr + offset - Improve documentation with additional info and description Changes v2: - Drop compatible "ethernet-phy-package", use node name prefix matching instead - Improve DT example - Add reg for ethernet-phy-package - Drop phy-mode for ethernet-phy-package - Drop patch for generalization of phy-mode - Drop global-phy property (handle internally to the PHY driver) - Rework OF phy package code and PHY driver to handle base address - Fix missing of_node_put - Add some missing docs for added variables in struct - Move some define from dt-bindings include to PHY driver - Handle qsgmii validation in PHY driver - Fix wrong include for gpiolib - Drop reduntant version.h include Christian Marangi (7): dt-bindings: net: document ethernet PHY package nodes net: phy: add support for scanning PHY in PHY packages nodes net: phy: add devm/of_phy_package_join helper net: phy: qcom: move more function to shared library dt-bindings: net: Document Qcom QCA807x PHY package net: phy: qcom: generalize some qca808x LED functions net: phy: qca807x: add support for configurable LED Robert Marko (2): dt-bindings: net: add QCA807x PHY defines net: phy: qcom: add support for QCA807x PHY Family .../bindings/net/ethernet-phy-package.yaml | 55 ++ .../devicetree/bindings/net/qcom,qca807x.yaml | 142 +++ drivers/net/mdio/of_mdio.c | 75 +- drivers/net/phy/mdio_bus.c | 44 +- drivers/net/phy/phy_device.c | 84 ++ drivers/net/phy/qcom/Kconfig | 8 + drivers/net/phy/qcom/Makefile | 1 + drivers/net/phy/qcom/at803x.c | 35 - drivers/net/phy/qcom/qca807x.c | 832 ++++++++++++++++++ drivers/net/phy/qcom/qca808x.c | 311 +------ drivers/net/phy/qcom/qcom-phy-lib.c | 247 ++++++ drivers/net/phy/qcom/qcom.h | 123 +++ include/dt-bindings/net/qcom-qca807x.h | 30 + include/linux/of_mdio.h | 26 + include/linux/phy.h | 6 + 15 files changed, 1648 insertions(+), 371 deletions(-) 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/qcom/qca807x.c create mode 100644 include/dt-bindings/net/qcom-qca807x.h