From patchwork Sun Apr 16 12:08:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Daniel Golle X-Patchwork-Id: 13212877 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 0733AC77B73 for ; Sun, 16 Apr 2023 12:09:49 +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:Message-ID:Subject:To:From :Date:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=aRBX75tPOW5h58HGdxsDRUBUL41SJO1XlH/Hth/A410=; b=AsLvP9XXHVZyHw aRu2DF7HGIa9eGhCA0zXqQxHICYuMITqOr/Y6uVjh9muY8PeTs7t69p+r9G6jKwwXMGye0YJVt+lH F2WbJE8hh6EMLtRqpok8RW281yeMmfm+fQqH8pGuI2vuXQFUJtS0WrqhEYo/kkYISuXq52HpWcR2A xUuZZKI5Y++QIK4t9P0hOvJldzr11buJNqAAMxlPhBb95dx0BVqwphfMl+htjHryZJHVBqXDgQfYR q72Phb6G87xZCT/s/D+CjsBQDIBNX/BZw706Obrz1a7IqddImj23SgCCZDXAwInro9wvu7sOxSUWP rIrDU0ZstonFX/IKdTCw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1po1BL-00Dm4n-0w; Sun, 16 Apr 2023 12:08:35 +0000 Received: from fudo.makrotopia.org ([2a07:2ec0:3002::71]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1po1BH-00Dm48-2S; Sun, 16 Apr 2023 12:08:33 +0000 Received: from local by fudo.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.96) (envelope-from ) id 1po1B7-00081r-0z; Sun, 16 Apr 2023 14:08:21 +0200 Date: Sun, 16 Apr 2023 13:08:14 +0100 From: Daniel Golle To: netdev@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Sean Wang , Landen Chao , DENG Qingfang , Andrew Lunn , Florian Fainelli , Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Russell King , AngeloGioacchino Del Regno , Matthias Brugger , =?utf-8?b?QXLEsW7DpyDDnE5BTA==?= , Jesse Brandeburg Subject: [PATCH net-next v2] net: dsa: mt7530: fix support for MT7531BE Message-ID: MIME-Version: 1.0 Content-Disposition: inline X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230416_050831_797213_96DF13CF X-CRM114-Status: GOOD ( 19.07 ) 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 There are two variants of the MT7531 switch IC which got different features (and pins) regarding port 5: * MT7531AE: SGMII/1000Base-X/2500Base-X SerDes PCS * MT7531BE: RGMII Moving the creation of the SerDes PCS from mt753x_setup to mt7530_probe with commit 6de285229773 ("net: dsa: mt7530: move SGMII PCS creation to mt7530_probe function") works fine for MT7531AE which got two instances of mtk-pcs-lynxi, however, MT7531BE requires mt7531_pll_setup to setup clocks before the single PCS on port 6 (usually used as CPU port) starts to work and hence the PCS creation failed on MT7531BE. Fix this by introducing a pointer to mt7531_create_sgmii function in struct mt7530_priv and call it again at the end of mt753x_setup like it was before commit 6de285229773 ("net: dsa: mt7530: move SGMII PCS creation to mt7530_probe function"). Fixes: 6de285229773 ("net: dsa: mt7530: move SGMII PCS creation to mt7530_probe function") Signed-off-by: Daniel Golle Acked-by: Arınç ÜNAL --- drivers/net/dsa/mt7530-mdio.c | 16 ++++++++-------- drivers/net/dsa/mt7530.c | 6 ++++++ drivers/net/dsa/mt7530.h | 4 ++-- 3 files changed, 16 insertions(+), 10 deletions(-) base-commit: e61caf04b9f8a2626714ffd12e734c555c758af4 diff --git a/drivers/net/dsa/mt7530-mdio.c b/drivers/net/dsa/mt7530-mdio.c index 34a547b88e497..088533663b83b 100644 --- a/drivers/net/dsa/mt7530-mdio.c +++ b/drivers/net/dsa/mt7530-mdio.c @@ -81,14 +81,17 @@ static const struct regmap_bus mt7530_regmap_bus = { }; static int -mt7531_create_sgmii(struct mt7530_priv *priv) +mt7531_create_sgmii(struct mt7530_priv *priv, bool dual_sgmii) { - struct regmap_config *mt7531_pcs_config[2]; + struct regmap_config *mt7531_pcs_config[2] = {}; struct phylink_pcs *pcs; struct regmap *regmap; int i, ret = 0; - for (i = 0; i < 2; i++) { + /* MT7531AE has two SGMII units for port 5 and port 6 + * MT7531BE has only one SGMII unit for port 6 + */ + for (i = dual_sgmii ? 0 : 1; i < 2; i++) { mt7531_pcs_config[i] = devm_kzalloc(priv->dev, sizeof(struct regmap_config), GFP_KERNEL); @@ -208,11 +211,8 @@ mt7530_probe(struct mdio_device *mdiodev) if (IS_ERR(priv->regmap)) return PTR_ERR(priv->regmap); - if (priv->id == ID_MT7531) { - ret = mt7531_create_sgmii(priv); - if (ret) - return ret; - } + if (priv->id == ID_MT7531) + priv->create_sgmii = mt7531_create_sgmii; return dsa_register_switch(priv->ds); } diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index e4bb5037d3525..c680873819b01 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -3018,6 +3018,12 @@ mt753x_setup(struct dsa_switch *ds) if (ret && priv->irq) mt7530_free_irq_common(priv); + if (priv->create_sgmii) { + ret = priv->create_sgmii(priv, mt7531_dual_sgmii_supported(priv)); + if (ret && priv->irq) + mt7530_free_irq(priv); + } + return ret; } diff --git a/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h index 01db5c9724fa8..5084f48a88691 100644 --- a/drivers/net/dsa/mt7530.h +++ b/drivers/net/dsa/mt7530.h @@ -748,10 +748,10 @@ struct mt753x_info { * registers * @p6_interface Holding the current port 6 interface * @p5_intf_sel: Holding the current port 5 interface select - * * @irq: IRQ number of the switch * @irq_domain: IRQ domain of the switch irq_chip * @irq_enable: IRQ enable bits, synced to SYS_INT_EN + * @create_sgmii: Pointer to function creating SGMII PCS instance(s) */ struct mt7530_priv { struct device *dev; @@ -770,7 +770,6 @@ struct mt7530_priv { unsigned int p5_intf_sel; u8 mirror_rx; u8 mirror_tx; - struct mt7530_port ports[MT7530_NUM_PORTS]; struct mt753x_pcs pcs[MT7530_NUM_PORTS]; /* protect among processes for registers access*/ @@ -778,6 +777,7 @@ struct mt7530_priv { int irq; struct irq_domain *irq_domain; u32 irq_enable; + int (*create_sgmii)(struct mt7530_priv *priv, bool dual_sgmii); }; struct mt7530_hw_vlan_entry {