From patchwork Mon Feb 5 16:48:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Marangi X-Patchwork-Id: 13545857 Received: from mail-wm1-f51.google.com (mail-wm1-f51.google.com [209.85.128.51]) (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 3A68B47796; Mon, 5 Feb 2024 16:49:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707151754; cv=none; b=HK/Y06IemDTbmCIsW5nRCrVYuFosP9zVpj0+QMM6DKDBzCsKhRNcSM6odlzw6xSrRZbY3a+dZiVIetimLvQ4EDS3kLSvBdnT4JNVItLtVAahFlkFbpcMFst+JLdFVPvbhRSNmj3soHPq+XQmB7Maxy0rnpdns1n7zYg+DptnHa8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707151754; c=relaxed/simple; bh=mG+KMNv/A3mLJpuaFQD/GBoSpPY4XzSaY9y3kPO1C5A=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=YmRDehx8u236e4NCnZA/2gHjdl3t2l0fwzfjk7CCnG4n/0mmqfo+jPUt/lmeUUDrMS6Bhf4iJ170/sl4iq6iVxz8ohOJjj1httPcBIfPLdMPwMNEStVM3DqTPttJM4FdGBQ9wtkS55jrUdZEeildlUwlxoB0pV4Zz3cVoi5Jv6o= 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=Xg64uf4B; arc=none smtp.client-ip=209.85.128.51 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 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Xg64uf4B" Received: by mail-wm1-f51.google.com with SMTP id 5b1f17b1804b1-40fb3b5893eso38065025e9.0; Mon, 05 Feb 2024 08:49:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1707151750; x=1707756550; 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=MCJZjdTnS6Uq1X+PLH0vDHoWwK/834bPA12yZFCUGH4=; b=Xg64uf4B7iqs9vzSCnAVB7P6ckktfC9TkGc4J4Wzt2zcSkEwsVXgXlp3KPj3iNdwoN sc4khUzX7n6dT4j7yC6vciRTyNAoQGUUJNP1NSbZCdppiRHEmKq4XO5KHsBEVeU+/0xN CndH6th8MRQuTEXEwq0zuMWF4ui0o7gA7SvlAQ3RSxs7nLhrgZ/IRdh+AxacfYcfh/AS jXUmoeGK0M/y+MryYIF7C2m7Ej1JqbJ7PH4wnAFcrueY5ExUmc6G7Wc6rNgdcpl8IrL5 V4qhgKJU+B6x/CU1c6ko1rseTq2mZ8YWifOA4gVCKAVaX8UqTpEPNkDV2QriXMEexk+N /I6w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707151750; x=1707756550; 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=MCJZjdTnS6Uq1X+PLH0vDHoWwK/834bPA12yZFCUGH4=; b=tYh4zpY6wm2FFrYVKYA9hFcw80uQacdjkqNAUIi0I1b+8WJnS6XShK/CUfyDialyW+ xoSzR+WUvzseOueRb4mhuVTyz9wfpJMFQ0D0BMa30ZOSrhMI86N+Q8woCgKJ2Lmy4HlX zbOZolFOzUGRY2gdUBUH1LucvynoTe7DkdVCusHz12jeAPDx1vfy6kznVZh3uX/Y1PvK JGSXvAY8xGNq8WVMLSZLefogOaH4JjUvPxG5RNjKofrLVVArUsZkmwAeunRfzuQljLK0 elnn1CCJsfJeZ3z+iw84SwFNUOQiNK3F/vIf/GhkC8AM+i8qGppoEqB4gT4CdMpupYgF OrOg== X-Gm-Message-State: AOJu0Yx815ekoIsl2YnlOlvsC9hn2K/M70XnQCDU0WyVaH+DilM0wG+9 1bv3RzM7K6BJtksBscs70srwrFbbKxoeryyW2tF0AjnqG8ocKk78 X-Google-Smtp-Source: AGHT+IEDEPzgMRIb7uIB+twc14/N29RzHH+LkwnK/Nt6G+0n+6ccjSFmOowkYPV2YdLZ1FjBeuzp5g== X-Received: by 2002:a05:600c:1c02:b0:40e:46b6:bc48 with SMTP id j2-20020a05600c1c0200b0040e46b6bc48mr230699wms.41.1707151750255; Mon, 05 Feb 2024 08:49:10 -0800 (PST) X-Forwarded-Encrypted: i=0; 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 Received: from localhost.localdomain (93-34-89-13.ip49.fastwebnet.it. [93.34.89.13]) by smtp.googlemail.com with ESMTPSA id k2-20020a05600c1c8200b0040fafd84095sm9140567wms.41.2024.02.05.08.49.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Feb 2024 08:49:09 -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 , Florian Fainelli , Broadcom internal kernel review list , 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 v6 06/10] net: phy: provide whether link has changed in c37_read_status Date: Mon, 5 Feb 2024 17:48:38 +0100 Message-ID: <20240205164851.1351-7-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240205164851.1351-1-ansuelsmth@gmail.com> References: <20240205164851.1351-1-ansuelsmth@gmail.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Some PHY driver might require additional regs call after genphy_c37_read_status() is called. Expand genphy_c37_read_status to provide a bool wheather the link has changed or not to permit PHY driver to skip additional regs call if nothing has changed. Every user of genphy_c37_read_status() is updated with the new additional bool. Signed-off-by: Christian Marangi --- drivers/net/phy/broadcom.c | 3 ++- drivers/net/phy/phy_device.c | 11 +++++++++-- drivers/net/phy/qcom/at803x.c | 3 ++- include/linux/phy.h | 2 +- 4 files changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c index 312a8bb35d78..370e4ed45098 100644 --- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c @@ -665,10 +665,11 @@ static int bcm54616s_config_aneg(struct phy_device *phydev) static int bcm54616s_read_status(struct phy_device *phydev) { struct bcm54616s_phy_priv *priv = phydev->priv; + bool changed; int err; if (priv->mode_1000bx_en) - err = genphy_c37_read_status(phydev); + err = genphy_c37_read_status(phydev, &changed); else err = genphy_read_status(phydev); diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index c30907dc9fb7..b36839414dfc 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -2617,12 +2617,15 @@ EXPORT_SYMBOL(genphy_read_status); /** * genphy_c37_read_status - check the link status and update current link state * @phydev: target phy_device struct + * @changed: pointer where to store if link changed * * Description: Check the link, then figure out the current state * by comparing what we advertise with what the link partner * advertises. This function is for Clause 37 1000Base-X mode. + * + * If link has changed, @changed is set to true, false otherwise. */ -int genphy_c37_read_status(struct phy_device *phydev) +int genphy_c37_read_status(struct phy_device *phydev, bool *changed) { int lpa, err, old_link = phydev->link; @@ -2632,9 +2635,13 @@ int genphy_c37_read_status(struct phy_device *phydev) return err; /* why bother the PHY if nothing can have changed */ - if (phydev->autoneg == AUTONEG_ENABLE && old_link && phydev->link) + if (phydev->autoneg == AUTONEG_ENABLE && old_link && phydev->link) { + *changed = false; return 0; + } + /* Signal link has changed */ + *changed = true; phydev->duplex = DUPLEX_UNKNOWN; phydev->pause = 0; phydev->asym_pause = 0; diff --git a/drivers/net/phy/qcom/at803x.c b/drivers/net/phy/qcom/at803x.c index 3e3ee4c1d4bc..4717c59d51d0 100644 --- a/drivers/net/phy/qcom/at803x.c +++ b/drivers/net/phy/qcom/at803x.c @@ -912,9 +912,10 @@ static int at8031_config_intr(struct phy_device *phydev) static int at8031_read_status(struct phy_device *phydev) { struct at803x_priv *priv = phydev->priv; + bool changed; if (priv->is_1000basex) - return genphy_c37_read_status(phydev); + return genphy_c37_read_status(phydev, &changed); return at803x_read_status(phydev); } diff --git a/include/linux/phy.h b/include/linux/phy.h index 2aed925e6c23..8f7f0101de13 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -1876,7 +1876,7 @@ int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum, /* Clause 37 */ int genphy_c37_config_aneg(struct phy_device *phydev); -int genphy_c37_read_status(struct phy_device *phydev); +int genphy_c37_read_status(struct phy_device *phydev, bool *changed); /* Clause 45 PHY */ int genphy_c45_restart_aneg(struct phy_device *phydev);