From nobody Fri Sep 20 20:39:02 2024 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E8AE5C76196 for ; Tue, 11 Apr 2023 00:11:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229889AbjDKAL1 (ORCPT ); Mon, 10 Apr 2023 20:11:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60956 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229591AbjDKALY (ORCPT ); Mon, 10 Apr 2023 20:11:24 -0400 Received: from fudo.makrotopia.org (fudo.makrotopia.org [IPv6:2a07:2ec0:3002::71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8224226AB; Mon, 10 Apr 2023 17:11:22 -0700 (PDT) Received: from local by fudo.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.96) (envelope-from ) id 1pm1bP-0007rm-1O; Tue, 11 Apr 2023 02:11:15 +0200 Date: Tue, 11 Apr 2023 01:11:07 +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 , =?utf-8?B?QXLEsW7DpyDDnE5BTA==?= , Russell King , AngeloGioacchino Del Regno , Matthias Brugger , Paolo Abeni , Jakub Kicinski , Eric Dumazet , "David S. Miller" , Vladimir Oltean , Florian Fainelli , Andrew Lunn Subject: [PATCH net-next] net: dsa: mt7530: fix support for MT7531BE Message-ID: MIME-Version: 1.0 Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 * 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_p= robe function") Signed-off-by: Daniel Golle --- drivers/net/dsa/mt7530-mdio.c | 14 +++++++------- drivers/net/dsa/mt7530.c | 6 ++++++ drivers/net/dsa/mt7530.h | 4 ++++ 3 files changed, 17 insertions(+), 7 deletions(-) diff --git a/drivers/net/dsa/mt7530-mdio.c b/drivers/net/dsa/mt7530-mdio.c index 34a547b88e497..f17eab67d15fa 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 =3D { }; =20 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 phylink_pcs *pcs; struct regmap *regmap; int i, ret =3D 0; =20 - for (i =3D 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 =3D dual_sgmii ? 0 : 1; i < 2; i++) { mt7531_pcs_config[i] =3D 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); =20 - if (priv->id =3D=3D ID_MT7531) { - ret =3D mt7531_create_sgmii(priv); - if (ret) - return ret; - } + if (priv->id =3D=3D ID_MT7531) + priv->create_sgmii =3D mt7531_create_sgmii; =20 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); =20 + if (priv->create_sgmii) { + ret =3D priv->create_sgmii(priv, mt7531_dual_sgmii_supported(priv)); + if (ret && priv->irq) + mt7530_free_irq(priv); + } + return ret; } =20 diff --git a/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h index 01db5c9724fa8..6e89578b4de02 100644 --- a/drivers/net/dsa/mt7530.h +++ b/drivers/net/dsa/mt7530.h @@ -752,6 +752,8 @@ struct mt753x_info { * @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; @@ -778,6 +780,8 @@ struct mt7530_priv { int irq; struct irq_domain *irq_domain; u32 irq_enable; + + int (*create_sgmii)(struct mt7530_priv *priv, bool dual_sgmii); }; =20 struct mt7530_hw_vlan_entry { --=20 2.40.0