From patchwork Wed Jun 24 07:00:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 11622431 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 307FF60D for ; Wed, 24 Jun 2020 07:02:52 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0690C206E2 for ; Wed, 24 Jun 2020 07:02:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="fwqoGUoW" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0690C206E2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=hnMRtQNTw6NzonOFYHoK/PRmIveefVz3yIrKtzo3ZaE=; b=fwqoGUoWsT6AD8qiFrW2cgfoRo hf3z6SC7Ry2Mf+MsoUbAstFksqKFsJ9OSud2aIchxlR+klN02odWpzMeL2GtTiFoMc97dKcVkUHh4 PTW2vF9YzPoIfn0yX0ttBDdBWAmW165HMW5sD6XqJVOD0LtcHk6ksjXdc/jB5EHvH8qBY8oTCZbKP caEouhhISO4aGi1HNypn50mTh5nyyeVDqXZFObBPiTGzqd+EIQ/WFxF5yvK7CkX8/ybUDvFQYS+Hb JtLzXjMyFMk3mUhxKGL8JeadNub+fkZk10MIv13ChnuG+Mp2MvW7RLiMHo1uh/EYU1djbCs1vNI8u Cn/tn50A==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jnzP3-0003q2-VR; Wed, 24 Jun 2020 07:01:02 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jnzP1-0003nN-MX for linux-arm-kernel@lists.infradead.org; Wed, 24 Jun 2020 07:01:00 +0000 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jnzOr-0006Wh-8u; Wed, 24 Jun 2020 09:00:49 +0200 Received: from sha by dude.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1jnzOq-0002xN-GZ; Wed, 24 Jun 2020 09:00:48 +0200 From: Sascha Hauer To: netdev@vger.kernel.org Subject: [PATCH 1/2] net: ethernet: mvneta: Do not error out in non serdes modes Date: Wed, 24 Jun 2020 09:00:44 +0200 Message-Id: <20200624070045.8878-1-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-Spam-Note: CRM114 invocation failed X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kernel@pengutronix.de, Sascha Hauer , Russell King , linux-kernel@vger.kernel.org, Thomas Petazzoni , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org In mvneta_config_interface() the RGMII modes are catched by the default case which is an error return. The RGMII modes are valid modes for the driver, so instead of returning an error add a break statement to return successfully. This avoids this warning for non comphy SoCs which use RGMII, like SolidRun Clearfog: WARNING: CPU: 0 PID: 268 at drivers/net/ethernet/marvell/mvneta.c:3512 mvneta_start_dev+0x220/0x23c Signed-off-by: Sascha Hauer Reviewed-by: Russell King --- drivers/net/ethernet/marvell/mvneta.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index af60001728481..c4552f868157c 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -3571,7 +3571,7 @@ static int mvneta_config_interface(struct mvneta_port *pp, MVNETA_HSGMII_SERDES_PROTO); break; default: - return -EINVAL; + break; } } From patchwork Wed Jun 24 07:00:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 11622427 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E0D8192A for ; Wed, 24 Jun 2020 07:02:41 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BA5FF206E2 for ; Wed, 24 Jun 2020 07:02:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="0YKL2WR1" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BA5FF206E2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=eBUiSR4Wrv0yJOaK2cFur4wXBqF5X1lv06zJLHFeJ40=; b=0YKL2WR1PDeozsNZT6NPT5xu3 VfMOcYfuV6hPYn42+t/+2XVlskf9sDBk4ydUUvTkMuYiqDR2sRDbjluIY+gUXE8hQ1VaKXztbwfoZ 1yzuYuQCpaLybNC3BGg/3UqwrMd2c0++Q/VrB6V2aR+yD0bd5scGLVNPoBJn9/xHeGUyFZv7+QB9E Q/LXS/VDv0YAaRrKN/HKOlIqMxNJMCDukz/FrZaJYj1/WJr7a4t5sIyjJMxApVh0+CPg945O5Glns 0UnMAFmO7wwypc8Mqr5YNp4lokSweO5ORBsrBPd7IpqZiLg6vmR2Lo/A4JRehAPywlYVHhOYA+fUn LsKcoWM6Q==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jnzOy-0003jW-Bd; Wed, 24 Jun 2020 07:00:56 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jnzOu-0003iD-Ja for linux-arm-kernel@lists.infradead.org; Wed, 24 Jun 2020 07:00:53 +0000 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jnzOr-0006Wj-8u; Wed, 24 Jun 2020 09:00:49 +0200 Received: from sha by dude.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1jnzOq-0002xb-IF; Wed, 24 Jun 2020 09:00:48 +0200 From: Sascha Hauer To: netdev@vger.kernel.org Subject: [PATCH 2/2] net: ethernet: mvneta: Add back interface mode validation Date: Wed, 24 Jun 2020 09:00:45 +0200 Message-Id: <20200624070045.8878-2-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200624070045.8878-1-s.hauer@pengutronix.de> References: <20200624070045.8878-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-Spam-Note: CRM114 invocation failed X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kernel@pengutronix.de, Sascha Hauer , Russell King , linux-kernel@vger.kernel.org, Thomas Petazzoni , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org When writing the serdes configuration register was moved to mvneta_config_interface() the whole code block was removed from mvneta_port_power_up() in the assumption that its only purpose was to write the serdes configuration register. As mentioned by Russell King its purpose was also to check for valid interface modes early so that later in the driver we do not have to care for unexpected interface modes. Add back the test to let the driver bail out early on unhandled interface modes. Signed-off-by: Sascha Hauer Reviewed-by: Russell King --- drivers/net/ethernet/marvell/mvneta.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index c4552f868157c..c639e3a293024 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -5009,10 +5009,18 @@ static void mvneta_conf_mbus_windows(struct mvneta_port *pp, } /* Power up the port */ -static void mvneta_port_power_up(struct mvneta_port *pp, int phy_mode) +static int mvneta_port_power_up(struct mvneta_port *pp, int phy_mode) { /* MAC Cause register should be cleared */ mvreg_write(pp, MVNETA_UNIT_INTR_CAUSE, 0); + + if (phy_mode != PHY_INTERFACE_MODE_QSGMII && + phy_mode != PHY_INTERFACE_MODE_SGMII && + !phy_interface_mode_is_8023z(phy_mode) && + !phy_interface_mode_is_rgmii(phy_mode)) + return -EINVAL; + + return 0; } /* Device initialization routine */ @@ -5198,7 +5206,11 @@ static int mvneta_probe(struct platform_device *pdev) if (err < 0) goto err_netdev; - mvneta_port_power_up(pp, phy_mode); + err = mvneta_port_power_up(pp, pp->phy_interface); + if (err < 0) { + dev_err(&pdev->dev, "can't power up port\n"); + return err; + } /* Armada3700 network controller does not support per-cpu * operation, so only single NAPI should be initialized. @@ -5352,7 +5364,11 @@ static int mvneta_resume(struct device *device) } } mvneta_defaults_set(pp); - mvneta_port_power_up(pp, pp->phy_interface); + err = mvneta_port_power_up(pp, pp->phy_interface); + if (err < 0) { + dev_err(device, "can't power up port\n"); + return err; + } netif_device_attach(dev);