From patchwork Thu Sep 3 04:39:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Fainelli X-Patchwork-Id: 1356308 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=paS1VAwd; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4Bhp573gypz9sSP for ; Thu, 3 Sep 2020 14:40:11 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726339AbgICEkI (ORCPT ); Thu, 3 Sep 2020 00:40:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58368 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726162AbgICEkA (ORCPT ); Thu, 3 Sep 2020 00:40:00 -0400 Received: from mail-pf1-x442.google.com (mail-pf1-x442.google.com [IPv6:2607:f8b0:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D2979C061246; Wed, 2 Sep 2020 21:39:58 -0700 (PDT) Received: by mail-pf1-x442.google.com with SMTP id w7so1234781pfi.4; Wed, 02 Sep 2020 21:39:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=OCoYfCHA4fbX8keiyJAOi27WsH3JkGUyWwn39WFi8cs=; b=paS1VAwdpuoy9XgQKKu05cXDI0GtUR+4bEIQS12wUqzYNRCPGqNPAJOz02SCxMZ63I oyuw4P3YzWW3OBUeQawiXU5Gvj+I+IF0+c9sfdYwvX01NEGS9SeFjdNoWF0WAjxNrJfT 6JF2jpJNEdzUMGh/GDP5Afb73prB6cFFYm9QSfVFQMNJ0JmmOM4gCpJ6OVZTkoLQl/il dMmsOlZgX2L+8qInlw9AG/uE7CpNsO9EcquKdjirvGwi048rcky8w+bYZbxbBAusipLn 8uux/JoYv0AtWAtgqOHIb+olTWB4MWoQ7xQtdGm+mviJuA2wxpBcyrqgngApNgT1eGAz 9HXw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=OCoYfCHA4fbX8keiyJAOi27WsH3JkGUyWwn39WFi8cs=; b=Izx5XStM/Ga3JDEv2XCYsJFUFTt2YuV73tzbC611KBtEUA0NXvOtafFoDUS7HrfPB8 dScJjoVWbjOb4pkdNC5Uv4RMHRg3dpCgh84QHR+xagf6NDJ8mYZ5o/8b1U7aWEqK4Rtl fkOxT8gq/R9zlnKSHEfW5WJQ+2VtV9KhCX4aAECaWOUmV9S4hgapnqiqCR3JavtdQOJD 86yip0CtvJzJqgz6bNn4C65fzxwz30h4kl4piWcp72P3TG9iMVx32CfY8IWOjp/nnWkW X3Rpwf9P0g6Cb3Az8FJjeNA+2el+75hGWnWfwag8iuHs0wsI+3cjK29bWUdyEoRuyfns L90g== X-Gm-Message-State: AOAM531hAkbW2uKp3Rjtn4mTr/biHhaXX8/JuKl8nOnScQVyrX/koM12 KE7EQKKNuTpwtBDBop1oGewPhn6f5g4= X-Google-Smtp-Source: ABdhPJwV5NxZ7QzGLBEyelXlNs/6EJvQwXLMWXLMZ+8iL8XbcV5B1GKuKiZ85hvkoaXG8oPA3/Ttfw== X-Received: by 2002:a63:ba18:: with SMTP id k24mr1334327pgf.335.1599107998009; Wed, 02 Sep 2020 21:39:58 -0700 (PDT) Received: from fainelli-desktop.igp.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id u63sm1251805pfu.34.2020.09.02.21.39.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Sep 2020 21:39:57 -0700 (PDT) From: Florian Fainelli To: netdev@vger.kernel.org Cc: Florian Fainelli , andrew@lunn.ch, adam.rudzinski@arf.net.pl, m.felsch@pengutronix.de, hkallweit1@gmail.com, richard.leitner@skidata.com, zhengdejin5@gmail.com, devicetree@vger.kernel.org, kernel@pengutronix.de, kuba@kernel.org, robh+dt@kernel.org Subject: [PATCH net-next 3/3] net: phy: bcm7xxx: request and manage GPHY clock Date: Wed, 2 Sep 2020 21:39:47 -0700 Message-Id: <20200903043947.3272453-4-f.fainelli@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200903043947.3272453-1-f.fainelli@gmail.com> References: <20200903043947.3272453-1-f.fainelli@gmail.com> MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The internal Gigabit PHY on Broadcom STB chips has a digital clock which drives its MDIO interface among other things, the driver now requests and manage that clock during .probe() and .remove() accordingly. Signed-off-by: Florian Fainelli --- drivers/net/phy/bcm7xxx.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/net/phy/bcm7xxx.c b/drivers/net/phy/bcm7xxx.c index 692048d86ab1..f0ffcdcaef03 100644 --- a/drivers/net/phy/bcm7xxx.c +++ b/drivers/net/phy/bcm7xxx.c @@ -11,6 +11,7 @@ #include "bcm-phy-lib.h" #include #include +#include #include /* Broadcom BCM7xxx internal PHY registers */ @@ -39,6 +40,7 @@ struct bcm7xxx_phy_priv { u64 *stats; + struct clk *clk; }; static int bcm7xxx_28nm_d0_afe_config_init(struct phy_device *phydev) @@ -534,7 +536,19 @@ static int bcm7xxx_28nm_probe(struct phy_device *phydev) if (!priv->stats) return -ENOMEM; - return 0; + priv->clk = devm_clk_get_optional(&phydev->mdio.dev, NULL); + if (IS_ERR(priv->clk)) + return PTR_ERR(priv->clk); + + return clk_prepare_enable(priv->clk); +} + +static void bcm7xxx_28nm_remove(struct phy_device *phydev) +{ + struct bcm7xxx_phy_priv *priv = phydev->priv; + + clk_disable_unprepare(priv->clk); + devm_clk_put(&phydev->mdio.dev, priv->clk); } #define BCM7XXX_28NM_GPHY(_oui, _name) \ @@ -552,6 +566,7 @@ static int bcm7xxx_28nm_probe(struct phy_device *phydev) .get_strings = bcm_phy_get_strings, \ .get_stats = bcm7xxx_28nm_get_phy_stats, \ .probe = bcm7xxx_28nm_probe, \ + .remove = bcm7xxx_28nm_remove, \ } #define BCM7XXX_28NM_EPHY(_oui, _name) \ @@ -567,6 +582,7 @@ static int bcm7xxx_28nm_probe(struct phy_device *phydev) .get_strings = bcm_phy_get_strings, \ .get_stats = bcm7xxx_28nm_get_phy_stats, \ .probe = bcm7xxx_28nm_probe, \ + .remove = bcm7xxx_28nm_remove, \ } #define BCM7XXX_40NM_EPHY(_oui, _name) \