From patchwork Thu Nov 12 15:55:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ioana Ciornei X-Patchwork-Id: 1399064 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=PGiFjk/V; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CX5rT5dcgz9s0b for ; Fri, 13 Nov 2020 02:59:21 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728922AbgKLP6h (ORCPT ); Thu, 12 Nov 2020 10:58:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44632 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728894AbgKLP6c (ORCPT ); Thu, 12 Nov 2020 10:58:32 -0500 Received: from mail-ej1-x641.google.com (mail-ej1-x641.google.com [IPv6:2a00:1450:4864:20::641]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB0CFC0613D1; Thu, 12 Nov 2020 07:58:31 -0800 (PST) Received: by mail-ej1-x641.google.com with SMTP id f23so8618174ejk.2; Thu, 12 Nov 2020 07:58:31 -0800 (PST) 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=GkNqvIU4e2wqvsaKr1NdRBEHW1oOns68JPzxdKku3G4=; b=PGiFjk/VHNUF8u5h9TApysnZMoYVrG0jw4aPmONKw3Wu1naCQF8iafFqUx1WmdVO+l 9Jje1OPwUBlnpmi70Yt67EbmTBvyRwbwMseWt1ymQMIqjtsFaA0eBgWBKBlJ7jeCYsSF ObXklZeekAkt/twzD5QnpRT2Aev/KmzmCqpZxmmeQxgRqbHMdnZU5hgpmv5UvvgS5iSn klRq0VbAkVm1Eyd5FlUeP/XAUdDE6ruoW8EM+jjDPTGWZI2pGyZivTu+0DUY/LiREAV6 6PfAu64akHBboPV0CWcZG8EUywIIYu133PLX4f3gT0HXvSgJ2/+lNiL/x/Q9D+z1a2C2 0uow== 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=GkNqvIU4e2wqvsaKr1NdRBEHW1oOns68JPzxdKku3G4=; b=AUV/XTXOSm2ULi5+f79Iw7993wgraIE9Zn4wh+hXmNARKfA9PVBJUbXTYRjWN1NPmO KyTsZJsdKZgW8EFqmW/e3XJb4MUdpHigRW2gxiCvgo+AVJWKq/MzxTEZlETLQG0x+8IK OL14Jl8D0tvPelpl9gZdtHY4xfRWX4HiZldGvvl5M9hYhM4We49SJHPDgKAPPOPTCNBi ZMBpS4BRXNt/VkXUxVZfyOQIzF0njGnk3p4nkO/7vP4mIo1BtZLmBv/tboOU2yCGehf2 jt0jWoRfzxsQRXsVC2CiETma05BI3if2HXGTRvWHeJLjD6mdO4Xoz1uxDA9560GYJxME 1zDg== X-Gm-Message-State: AOAM533OL88H/GIc557jEEbOwXLjBMzjkIJ3TtP+3Fya6excrccPzYIw n4i3HFjz1LcWdAiDO0OZVmg= X-Google-Smtp-Source: ABdhPJxLBstO6oJvLi8vFDDkTa9R1ICv/irV2WOlV7y2XnRHTMGcUDO3Szw0JGj4Uu7whIrAxzwijg== X-Received: by 2002:a17:906:f05:: with SMTP id z5mr14672273eji.8.1605196710426; Thu, 12 Nov 2020 07:58:30 -0800 (PST) Received: from yoga-910.localhost ([188.25.2.177]) by smtp.gmail.com with ESMTPSA id q15sm2546540edt.95.2020.11.12.07.58.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Nov 2020 07:58:29 -0800 (PST) From: Ioana Ciornei To: Andrew Lunn , Heiner Kallweit , Russell King , Florian Fainelli , Jakub Kicinski , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Ioana Ciornei Subject: [PATCH net-next 11/18] net: phy: amd: implement generic .handle_interrupt() callback Date: Thu, 12 Nov 2020 17:55:06 +0200 Message-Id: <20201112155513.411604-12-ciorneiioana@gmail.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201112155513.411604-1-ciorneiioana@gmail.com> References: <20201112155513.411604-1-ciorneiioana@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Ioana Ciornei In an attempt to actually support shared IRQs in phylib, we now move the responsibility of triggering the phylib state machine or just returning IRQ_NONE, based on the IRQ status register, to the PHY driver. Having 3 different IRQ handling callbacks (.handle_interrupt(), .did_interrupt() and .ack_interrupt() ) is confusing so let the PHY driver implement directly an IRQ handler like any other device driver. Make this driver follow the new convention. Signed-off-by: Ioana Ciornei --- drivers/net/phy/amd.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/net/phy/amd.c b/drivers/net/phy/amd.c index eef35f8c8d45..ae75d95c398c 100644 --- a/drivers/net/phy/amd.c +++ b/drivers/net/phy/amd.c @@ -20,6 +20,10 @@ #define MII_AM79C_IR_EN_ANEG 0x0100 /* IR enable Aneg Complete */ #define MII_AM79C_IR_IMASK_INIT (MII_AM79C_IR_EN_LINK | MII_AM79C_IR_EN_ANEG) +#define MII_AM79C_IR_LINK_DOWN BIT(2) +#define MII_AM79C_IR_ANEG_DONE BIT(0) +#define MII_AM79C_IR_IMASK_STAT (MII_AM79C_IR_LINK_DOWN | MII_AM79C_IR_ANEG_DONE) + MODULE_DESCRIPTION("AMD PHY driver"); MODULE_AUTHOR("Heiko Schocher "); MODULE_LICENSE("GPL"); @@ -56,6 +60,24 @@ static int am79c_config_intr(struct phy_device *phydev) return err; } +static irqreturn_t am79c_handle_interrupt(struct phy_device *phydev) +{ + int irq_status; + + irq_status = phy_read(phydev, MII_AM79C_IR); + if (irq_status < 0) { + phy_error(phydev); + return IRQ_NONE; + } + + if (!(irq_status & MII_AM79C_IR_IMASK_STAT)) + return IRQ_NONE; + + phy_trigger_machine(phydev); + + return IRQ_HANDLED; +} + static struct phy_driver am79c_driver[] = { { .phy_id = PHY_ID_AM79C874, .name = "AM79C874", @@ -64,6 +86,7 @@ static struct phy_driver am79c_driver[] = { { .config_init = am79c_config_init, .ack_interrupt = am79c_ack_interrupt, .config_intr = am79c_config_intr, + .handle_interrupt = am79c_handle_interrupt, } }; module_phy_driver(am79c_driver);