From patchwork Wed Nov 13 21:11:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Machon X-Patchwork-Id: 13874310 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 123B7D637CA for ; Wed, 13 Nov 2024 21:30:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:CC:To:In-Reply-To:References :Message-ID:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=S4i4A9d9EMVpmaXXJfllCHHREcBTRuHjXfL72ShVYSs=; b=CfrbKbJaPKXLPh0gH+LKntW2Fi 2gijtdZOPlcY/w1hga4JxhCao9atQXSj0ztJUXzjUwBhoBCbiA9w/eCFpOLm4izpE+zQknqqwJ/5t uCTDV13aDENP/XCiUV5VN4lnJTQhQxvelH1K537tM2xOV7jlikBZoYl5z8IXjO+oiUPiXU/71IpmT a87c0UzIOflx77bprHYIZOj7ctR5IOCyEWxFkszCdT6kQBBzu8k2HHXmL28sRB9UAvw4U/+UPp95Y /MwAShSrncIZMmJsRKJwSXr97nq5GUHBUBTw1lav+gkMSy6eVUlFF1IS3Q9Tu8pt2s8oG7AILm1KO hyFQmSog==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tBKwP-000000084tw-2QLV; Wed, 13 Nov 2024 21:30:21 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tBKfb-000000082WA-3OGn for linux-arm-kernel@lists.infradead.org; Wed, 13 Nov 2024 21:13:05 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1731532379; x=1763068379; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=gZ500P10yVXIKdiPBJoAEnTl8gEfa/8nVoOA0fZ9N88=; b=AFKrxW/jx553blhUw2UFXns4sJr8DGDl8fDPhKXYatlVuUUvzMqFWn32 uV1GyIveku33hpR5g6efTCSXnQd4TymwkAsSHMwLpU+ba0yUWQwC59ktG aQMz8Z2dM33ZpgOMx83YPbwvwlcoaN2OE7rYGoB+gK1y1RGiD7gQT+3ik iz4+7lsku5pI8MSN3ayhjDwKifiw+VFIu7QIvj1ly5MbhDytKcpY1/SvJ 4pfRWX+Vdb3Mvx96fSJ2XMPoZifw0zqmLMpfeaKCJAqtTu7NYwuyr6mR1 I0+sb+uxp64+5Y9I1mS4/PQSGDaiSFN30qPR65zMJ0l5UFJB3wY6QMUti A==; X-CSE-ConnectionGUID: LNMcZUSqQpykPbAV/x+7AA== X-CSE-MsgGUID: 52hYiIW6TfyHhaJkY9jBkg== X-IronPort-AV: E=Sophos;i="6.12,152,1728975600"; d="scan'208";a="34014131" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa4.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 13 Nov 2024 14:12:58 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Wed, 13 Nov 2024 14:11:47 -0700 Received: from DEN-DL-M70577.microchip.com (10.10.85.11) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Wed, 13 Nov 2024 14:11:44 -0700 From: Daniel Machon Date: Wed, 13 Nov 2024 22:11:12 +0100 Subject: [PATCH net-next v2 4/8] net: sparx5: use phy_interface_mode_is_rgmii() MIME-Version: 1.0 Message-ID: <20241113-sparx5-lan969x-switch-driver-4-v2-4-0db98ac096d1@microchip.com> References: <20241113-sparx5-lan969x-switch-driver-4-v2-0-0db98ac096d1@microchip.com> In-Reply-To: <20241113-sparx5-lan969x-switch-driver-4-v2-0-0db98ac096d1@microchip.com> To: , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , "Lars Povlsen" , Steen Hegelund , Horatiu Vultur , Russell King , , , , CC: , , , X-Mailer: b4 0.14-dev X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241113_131259_956111_9D585BDC X-CRM114-Status: GOOD ( 17.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use the phy_interface_mode_is_rgmii() function to check if the PHY mode is set to any of: RGMII, RGMII_ID, RGMII_RXID or RGMII_TXID in the following places: - When selecting the MAC PCS, make sure we return NULL in case the PHY mode is RGMII (as there is no PCS to configure). - When doing a port config, make sure we do not do the low-speed device configuration, in case the PHY mode is RGMII. Note that we could also have used is_port_rgmii() here, but it makes more sense to me to use the phylink provided functions, as we are called by phylink, and the RGMII modes have already been validated against the supported interfaces of the ports. Reviewed-by: Steen Hegelund Reviewed-by: Horatiu Vultur Signed-off-by: Daniel Machon --- drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c | 3 +++ drivers/net/ethernet/microchip/sparx5/sparx5_port.c | 3 ++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c b/drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c index f8562c1a894d..cb55e05e5611 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c @@ -32,6 +32,9 @@ sparx5_phylink_mac_select_pcs(struct phylink_config *config, { struct sparx5_port *port = netdev_priv(to_net_dev(config->dev)); + if (phy_interface_mode_is_rgmii(interface)) + return NULL; + return &port->phylink_pcs; } diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c index 8f4f19a2bd65..b494970752fd 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c @@ -994,6 +994,7 @@ int sparx5_port_config(struct sparx5 *sparx5, struct sparx5_port *port, struct sparx5_port_config *conf) { + bool rgmii = phy_interface_mode_is_rgmii(conf->phy_mode); bool high_speed_dev = sparx5_is_baser(conf->portmode); const struct sparx5_ops *ops = sparx5->data->ops; int err, urgency, stop_wm; @@ -1003,7 +1004,7 @@ int sparx5_port_config(struct sparx5 *sparx5, return err; /* high speed device is already configured */ - if (!high_speed_dev) + if (!rgmii && !high_speed_dev) sparx5_port_config_low_set(sparx5, port, conf); /* Configure flow control */