From patchwork Sat Nov 25 00:11:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Marangi X-Patchwork-Id: 747178 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="m07uCMjj" Received: from mail-wr1-x42d.google.com (mail-wr1-x42d.google.com [IPv6:2a00:1450:4864:20::42d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7A37B19A3; Fri, 24 Nov 2023 16:35:26 -0800 (PST) Received: by mail-wr1-x42d.google.com with SMTP id ffacd0b85a97d-332e42469f0so1304018f8f.1; Fri, 24 Nov 2023 16:35:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1700872525; x=1701477325; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=1AwvqFzZJu6lRLjlg2HSWxHNqqoUH9PNhraV2LjOZjE=; b=m07uCMjjzBaNfUSsT35g7VNUL5K0jkBMNzOT6zekSQMIBG1WbeUttlfr3pHGu0CgUQ sVV0Psa6vNw5Qc/2ZaeExlU6ri1aJoY/hvAr1HOUyQTyguyP7Jt+8wnXpOF4hqVquzpn sxVk7pbuRMn6Y+R0kpkpgyQ+RLxocsb/vANVRlfbClL3+kO95ntzhwEE9Bi25Y5puRlR LIwmuzEdrcGDMNBLryIDCf86KuqdHypGPC/sjSyJy3vTj083ElVNhf8HVyVe8sSSECGv jHy+fzx1P4/fjyjDIwPIKIYBbGDwTVAp5kHuQLsfCZxGVhadnhLm5T+xS2ojoMv4NJNz n5mQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1700872525; x=1701477325; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=1AwvqFzZJu6lRLjlg2HSWxHNqqoUH9PNhraV2LjOZjE=; b=T3ZsMybyAsHpHLVVJE4x+V1AUCURjctKJLdug1XpS97PClRdz80NGb1832HBkn2A6H xPkIb0VmygBIwO8GaCTbpszyqzMFz0oZ/mAOdVBzgyOFhQzFgRGGDspAGv68/qM2UWqd wn+m/k7IFgm1St8e9YBrslrK9PwiWX8U83O6vlnQqdiTnRm4M/AdXkpng+pxygkOkSog ot/OqZwtoDFoag6upgxZd6jwgVNtiqcA7MR0LtzEm7BS+BLfkqnk6xMLKXzRhID/cH/W ajFkdh7Ymh9IpkB8xnnDResvYUq42BJyd3D7ZWYnYjhvWxDcBj3qqQwB9c69aKews3pi kAdw== X-Gm-Message-State: AOJu0YzqEyU2nMuzBIaaFfYNu/YuKZdDFjYu97Pc1HgkQVwgcUOAzJfu qY/0jL0+TeY4Sq4DaZwu7VE= X-Google-Smtp-Source: AGHT+IFhMHZ210TeORBHK1rDSRJCNFUs5mH89ZCrVUsQ18913rgA5ad1O9jEGVX3aTh0gMhWj4aTdw== X-Received: by 2002:adf:e911:0:b0:32d:8bf9:1990 with SMTP id f17-20020adfe911000000b0032d8bf91990mr4003007wrm.37.1700872524729; Fri, 24 Nov 2023 16:35:24 -0800 (PST) Received: from localhost.localdomain (93-34-89-13.ip49.fastwebnet.it. [93.34.89.13]) by smtp.googlemail.com with ESMTPSA id u13-20020a05600c00cd00b00405718cbeadsm4268005wmm.1.2023.11.24.16.35.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Nov 2023 16:35:24 -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 , Vladimir Oltean , David Epping , Harini Katakam , Christian Marangi , "Russell King (Oracle)" , 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 v2 05/11] net: phy: add support for driver specific PHY package probe/config Date: Sat, 25 Nov 2023 01:11:21 +0100 Message-Id: <20231125001127.5674-6-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231125001127.5674-1-ansuelsmth@gmail.com> References: <20231125001127.5674-1-ansuelsmth@gmail.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add PHY driver specific function to probe and configure PHY package. These function are run only once before the PHY probe and config_init. They are used in conjunction with DT PHY package define for basic PHY package implementation to setup and probe PHY package with simple functions directly defined in the PHY driver struct. Signed-off-by: Christian Marangi --- drivers/net/phy/phy_device.c | 14 ++++++++++++++ include/linux/phy.h | 21 +++++++++++++++++++++ 2 files changed, 35 insertions(+) diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 454dc8256e94..d7cfeb1011c1 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -1246,6 +1246,13 @@ int phy_init_hw(struct phy_device *phydev) if (ret < 0) return ret; + if (phydev->drv->phy_package_config_init_once && + phy_package_init_once(phydev)) { + ret = phydev->drv->phy_package_config_init_once(phydev); + if (ret < 0) + return ret; + } + if (phydev->drv->config_init) { ret = phydev->drv->config_init(phydev); if (ret < 0) @@ -3370,6 +3377,13 @@ static int phy_probe(struct device *dev) /* Deassert the reset signal */ phy_device_reset(phydev, 0); + if (phydev->drv->phy_package_probe_once && + phy_package_probe_once(phydev)) { + err = phydev->drv->phy_package_probe_once(phydev); + if (err) + goto out; + } + if (phydev->drv->probe) { err = phydev->drv->probe(phydev); if (err) diff --git a/include/linux/phy.h b/include/linux/phy.h index 4ddf08e89624..677b5bceac45 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -923,12 +923,33 @@ struct phy_driver { */ int (*soft_reset)(struct phy_device *phydev); + /** + * @phy_package_config_init_once: Driver specific PHY package + * config init call + * @def: PHY device to use to probe PHY package + * + * Called to initialize the PHY package, including after + * a reset. + * Called BEFORE PHY config_init. + */ + int (*phy_package_config_init_once)(struct phy_device *dev); + /** * @config_init: Called to initialize the PHY, * including after a reset */ int (*config_init)(struct phy_device *phydev); + /** + * @phy_package_probe_once: Driver specific PHY package probe + * @def: PHY device to use to probe PHY package + * + * Called during discovery once per PHY package. Used to set + * up device-specific PHY package structures, if any. + * Called BEFORE PHY probe. + */ + int (*phy_package_probe_once)(struct phy_device *dev); + /** * @probe: Called during discovery. Used to set * up device-specific structures, if any