From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 42B46C77B75 for ; Tue, 16 May 2023 22:56:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230499AbjEPW4r (ORCPT ); Tue, 16 May 2023 18:56:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39938 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229533AbjEPW4p (ORCPT ); Tue, 16 May 2023 18:56:45 -0400 Received: from mail-pf1-x42b.google.com (mail-pf1-x42b.google.com [IPv6:2607:f8b0:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5CDE630E6 for ; Tue, 16 May 2023 15:56:44 -0700 (PDT) Received: by mail-pf1-x42b.google.com with SMTP id d2e1a72fcca58-6439bbc93b6so34886b3a.1 for ; Tue, 16 May 2023 15:56:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1684277804; x=1686869804; h=mime-version:message-id:date:subject:cc:to:from:from:to:cc:subject :date:message-id:reply-to; bh=/zew69sGKRiuDolxKopFB94z+Rz/OgZgTKJLfjmXkmo=; b=DZN5wElZRYc1xSsz8fpxJIznkzwvxcQ/mOYHK6+/iMkgVh/TxDW4TLrOyVQ5Ve8AM6 ktw7QPRLaZc8kp8BZkeX/shhMtL7h+OQ1960dunj9UVzuzCjWbzf11FHeat/t/wJR9vL 2xjcgVnjC1MOOC/8mKuoiOBgPEBAOVjdmLAr8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684277804; x=1686869804; h=mime-version:message-id:date:subject:cc:to:from:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=/zew69sGKRiuDolxKopFB94z+Rz/OgZgTKJLfjmXkmo=; b=E+v1l2R/fDgjSUkA9oHBNki9CiFCl03eu//R5Kxpr4i0MTAATFcpGiGaOpc3KNiICh tuQHjkEiXjkt+RNfDYTFZ6z6HPGcUi9kW2JySww30sIn/2IfciYO1rxYrzPk/4s/Z4nz NAqB3tY5+6xscM+rrTnRQo3VY2/lwIz9ojBGac9DNkoSZz4sbDdmdYyhYITJDbh9RRFQ JuR024A7il9jxwmqVOF2InjQUITtr9gCq0VVr/1wo9R/yQ37KxcuU7f+grRWy0q4HH/7 RMYobGLi8K/zx/CdP/p6xQ0VSKaMEsAJYD3jvmSHlIMhCyKYLf7XZfBr1+ucvvqVFWy+ jhgA== X-Gm-Message-State: AC+VfDx3UHZmr37CcUbcnvCo+27Lwt+ajzq9oClN3J7cm4JS3NhZ8u10 VOXJ9Suc6cPT/CM0eJjBjadQ/g== X-Google-Smtp-Source: ACHHUZ4WqAnc/jb+IoDdS7kTof7spcrI5sA+fDZNBL9n/Ibp1K9rGXvbpDSbrFpCyZweJd7w74vtuQ== X-Received: by 2002:a05:6a00:218a:b0:640:defd:a6d5 with SMTP id h10-20020a056a00218a00b00640defda6d5mr45765652pfi.12.1684277803751; Tue, 16 May 2023 15:56:43 -0700 (PDT) Received: from fainelli-desktop.igp.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id f13-20020aa782cd000000b0062e63cdfcb6sm14340426pfn.94.2023.05.16.15.56.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 May 2023 15:56:43 -0700 (PDT) From: Florian Fainelli X-Google-Original-From: Florian Fainelli To: netdev@vger.kernel.org Cc: Florian Fainelli , Doug Berger , Florian Fainelli , Broadcom internal kernel review list , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , linux-kernel@vger.kernel.org (open list) Subject: [PATCH net-next] net: phy: broadcom: Register dummy IRQ handler Date: Tue, 16 May 2023 15:56:39 -0700 Message-Id: <20230516225640.2858994-1-f.fainelli@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="00000000000037fbd405fbd77c42" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --00000000000037fbd405fbd77c42 Content-Transfer-Encoding: 8bit From: Florian Fainelli In order to have our interrupt descriptor fully setup, and in particular the action, ensure that we register a full fledged interrupt handler. This is in particular necessary for the kernel to properly manage early wake-up scenarios and arm the wake-up interrupt, otherwise there would be risks of missing the interrupt and leaving it in a state where it would not be handled correctly at all, including for wake-up purposes. Fixes: 8baddaa9d4ba ("net: phy: broadcom: Add support for Wake-on-LAN") Suggested-by: Doug Berger Signed-off-by: Florian Fainelli --- drivers/net/phy/bcm-phy-lib.c | 6 ++++++ drivers/net/phy/bcm-phy-lib.h | 2 ++ drivers/net/phy/broadcom.c | 9 ++++++++- 3 files changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/net/phy/bcm-phy-lib.c b/drivers/net/phy/bcm-phy-lib.c index 27c57f6ab211..5603d0a9ce96 100644 --- a/drivers/net/phy/bcm-phy-lib.c +++ b/drivers/net/phy/bcm-phy-lib.c @@ -1028,6 +1028,12 @@ void bcm_phy_get_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol) } EXPORT_SYMBOL_GPL(bcm_phy_get_wol); +irqreturn_t bcm_phy_wol_isr(int irq, void *dev_id) +{ + return IRQ_HANDLED; +} +EXPORT_SYMBOL_GPL(bcm_phy_wol_isr); + MODULE_DESCRIPTION("Broadcom PHY Library"); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Broadcom Corporation"); diff --git a/drivers/net/phy/bcm-phy-lib.h b/drivers/net/phy/bcm-phy-lib.h index c6fed43ec913..2f30ce0cab0e 100644 --- a/drivers/net/phy/bcm-phy-lib.h +++ b/drivers/net/phy/bcm-phy-lib.h @@ -8,6 +8,7 @@ #include #include +#include struct ethtool_wolinfo; @@ -115,5 +116,6 @@ static inline void bcm_ptp_stop(struct bcm_ptp_private *priv) int bcm_phy_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol); void bcm_phy_get_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol); +irqreturn_t bcm_phy_wol_isr(int irq, void *dev_id); #endif /* _LINUX_BCM_PHY_LIB_H */ diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c index 418e6bc0e998..822c8b01dc53 100644 --- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c @@ -927,7 +927,14 @@ static int bcm54xx_phy_probe(struct phy_device *phydev) if (!IS_ERR(wakeup_gpio)) { priv->wake_irq = gpiod_to_irq(wakeup_gpio); - ret = irq_set_irq_type(priv->wake_irq, IRQ_TYPE_LEVEL_LOW); + + /* Dummy interrupt handler which is not enabled but is provided + * in order for the interrupt descriptor to be fully set-up. + */ + ret = devm_request_irq(&phydev->mdio.dev, priv->wake_irq, + bcm_phy_wol_isr, + IRQF_TRIGGER_LOW | IRQF_NO_AUTOEN, + dev_name(&phydev->mdio.dev), phydev); if (ret) return ret; } -- 2.34.1 --00000000000037fbd405fbd77c42 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQeQYJKoZIhvcNAQcCoIIQajCCEGYCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg gg3QMIIFDTCCA/WgAwIBAgIQeEqpED+lv77edQixNJMdADANBgkqhkiG9w0BAQsFADBMMSAwHgYD VQQLExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMzETMBEGA1UEChMKR2xvYmFsU2lnbjETMBEGA1UE AxMKR2xvYmFsU2lnbjAeFw0yMDA5MTYwMDAwMDBaFw0yODA5MTYwMDAwMDBaMFsxCzAJBgNVBAYT AkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMTEwLwYDVQQDEyhHbG9iYWxTaWduIEdDQyBS MyBQZXJzb25hbFNpZ24gMiBDQSAyMDIwMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA vbCmXCcsbZ/a0fRIQMBxp4gJnnyeneFYpEtNydrZZ+GeKSMdHiDgXD1UnRSIudKo+moQ6YlCOu4t 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