From patchwork Wed Feb 8 16:41:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= X-Patchwork-Id: 13133251 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 C2684C636D4 for ; Wed, 8 Feb 2023 16:41:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=nZUOfw1YBLU4A+Epvj4tuTwUNA3lQC4/LkeKakWBHQY=; b=dXBSBQimS7ZQwc F9AhW9KxE3mm7Ns8b09SOBmxM7VDq5PQSXaP6849J8pdO8gG72rCLotk7f+s/+oZ69nLWvL4WrcD4 ocvNDRLlYUpLRQ2mAM0ai4Og2wjzQERcS7OrHBwyG9yXEKa4/osJXQnq+nQ0RfoNaoOEptyUtDTlL 9htf5NhcKc6iMA0ccY+GBRjgOyyMP/BLau1JvaMBJ6rCGc8i0M3Poho42Di3QX7SCwNmWzH5xxP9t JQ/r9s/Mf47Lxk9H89vmjEybE87O+yD4S7dGjCoypH1fwULmEWogIYqjBDvwNIfaHOlRkiMm28TRr 3URRLqOy8fvf+utxiPmA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pPnUw-00GHzp-FV; Wed, 08 Feb 2023 16:40:42 +0000 Received: from relay8-d.mail.gandi.net ([2001:4b98:dc4:8::228]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pPnUf-00GHoP-8v for linux-arm-kernel@lists.infradead.org; Wed, 08 Feb 2023 16:40:28 +0000 Received: (Authenticated sender: clement.leger@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 36E231BF209; Wed, 8 Feb 2023 16:40:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1675874421; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1zV1VFrWVhQ6vhXF/fCLwcz9IjHBuYzryMaqXBU05Vo=; b=bsr2kT8/fs5ycb41yzV5D54Na9MB0RfaRaz/6VBRiG9lnEj506WDX5EFWJbhJ9f9+cc+se 2srr6LKvbSutYzurG4hnAQYFcFmaPaHNO6rikx9pRpXY2XUWqXiMpwjs/rtViOJzTFcQT6 fSuuM3Mu67AGYUDEMsDt+vSQG9R7u27Msf4jnskpsYrVrHPWGbQJ1wv0eyK1brGcrBwxz8 GoVuevDB6Ep2WV7zfFfJvtWZ+K0ONsjugPgnC//YBHlj9EcDmvqagdg/CITSnvNfHpjgEm Ey22ZDxQPP28DIXD11BR4m4IZLtAV8WneDCssRBhlFWDLBNk5QYmoEHr7miOYg== From: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= To: Sergey Shtylyov , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Geert Uytterhoeven , Magnus Damm , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , Maxime Coquelin , Russell King , Wong Vee Khee , =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= , Kurt Kanzenbach , Revanth Kumar Uppala , Tan Tee Min Cc: Thomas Petazzoni , Herve Codina , =?utf-8?q?Miqu=C3=A8l_Raynal?= , Milan Stevanovic , Jimmy Lalande , Pascal Eberhard , Mohammad Athari Bin Ismail , Jon Hunter , netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH net-next v2 1/6] net: pcs: rzn1-miic: add pcs_early_setup() function Date: Wed, 8 Feb 2023 17:41:58 +0100 Message-Id: <20230208164203.378153-2-clement.leger@bootlin.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230208164203.378153-1-clement.leger@bootlin.com> References: <20230208164203.378153-1-clement.leger@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230208_084025_666139_13EA090A X-CRM114-Status: GOOD ( 13.00 ) 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 When using this PCS with the stmmac IP, if the pcs is not configured and enabled before setting up stmmac hardware, driver setup will fail due to the lack of input RGMII RX clock. Add pcs_early_setup() function which allows to configure the MIIC converter based on the "phy-mode" that is described in the device-tree. Signed-off-by: Clément Léger --- drivers/net/pcs/pcs-rzn1-miic.c | 12 ++++++++++++ include/linux/pcs-rzn1-miic.h | 3 +++ 2 files changed, 15 insertions(+) diff --git a/drivers/net/pcs/pcs-rzn1-miic.c b/drivers/net/pcs/pcs-rzn1-miic.c index c1424119e821..e2eaf789c4d2 100644 --- a/drivers/net/pcs/pcs-rzn1-miic.c +++ b/drivers/net/pcs/pcs-rzn1-miic.c @@ -288,6 +288,18 @@ static const struct phylink_pcs_ops miic_phylink_ops = { .pcs_link_up = miic_link_up, }; +int miic_early_setup(struct phylink_pcs *pcs, struct device *dev) +{ + int interface; + + interface = device_get_phy_mode(dev); + if (interface < 0) + return interface; + + return miic_config(pcs, 0, interface, NULL, false); +} +EXPORT_SYMBOL(miic_early_setup); + struct phylink_pcs *miic_create(struct device *dev, struct device_node *np) { struct platform_device *pdev; diff --git a/include/linux/pcs-rzn1-miic.h b/include/linux/pcs-rzn1-miic.h index 56d12b21365d..84d7130b4b78 100644 --- a/include/linux/pcs-rzn1-miic.h +++ b/include/linux/pcs-rzn1-miic.h @@ -9,8 +9,11 @@ #define __LINUX_PCS_MIIC_H struct phylink; +struct phylink_pcs; struct device_node; +int miic_early_setup(struct phylink_pcs *pcs, struct device *dev); + struct phylink_pcs *miic_create(struct device *dev, struct device_node *np); void miic_destroy(struct phylink_pcs *pcs);