From patchwork Thu Feb 8 05:51:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?QXLEsW7DpyDDnE5BTCB2aWEgQjQgUmVsYXk=?= X-Patchwork-Id: 13549336 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 53B4AC4828F for ; Thu, 8 Feb 2024 05:51:54 +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:Reply-To:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References: Message-Id:MIME-Version:Subject:Date:From:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=v5ASVUFEkTkn62kX/yfGsfRwbCKO7BvEQy4Fq86FCNg=; b=N8u9tdqYejsdtw nvLneCqWTqaRNTFRlGXiIcPhb7PqStdM6zCyU8nD3RQqNYbTD+JSCjDlfKNbApZqcDvgI/bvsvCHB OEkoY6c0IskqbsaUq/lfvx2TTqQhxvz9Cn1sbnoNCuELD7AwaPCibR596xxLAlAc7E6n58olsNLNp ZPe7US50KZ9XHO0vSWu4QvM0aEqBJPpxQJUCrEK8gNYFdYfVP5imjJutKs9AczjbybfyREiEim7UU zpvy79uRc6rJ5NPaonxhldgLz9373+T4c7UB4ieUW2vrBHobRa3Ezv8O0mpA/4eYuYpoNjz9mEE8E NyKTxHBzHCkJl5J7Q0tw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rXxK0-0000000ChYL-1V0q; Thu, 08 Feb 2024 05:51:40 +0000 Received: from sin.source.kernel.org ([2604:1380:40e1:4800::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rXxJw-0000000ChVA-0gj8; Thu, 08 Feb 2024 05:51:37 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 7153DCE1B8A; Thu, 8 Feb 2024 05:51:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 4A04AC433B2; Thu, 8 Feb 2024 05:51:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1707371493; bh=04/0rCcowbZ6LhgeozKI78kK1WE+TDUCuzqyX4cOs54=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=ktp8QU2SJWaNdSdhiyyGTYaFIAx5aMSsTwpoCaQmN6hd4KTti1gD2TYtyfXkr538b XLlBOBeIlTOeQp0R7vR3cdgrrkjs+6OzebQ7hW6YKUFYEpuv1ZfQ8NzIARJNouX4eA SrICo0TBoF9p4kJNP0BjxezVa1t+mR+5krNr3A5XJ8WwuhKCaioUzHXfl8JeXben5c HEt/iqBKEgjVLJXt3njvJfes/Y1wAH6K453uCMky6d2JLIpp4SdYI7wSnKSoQEwAkU VWvWHzouNPvsB3rJ8+i3OJpVFy8BfHoJAvSpyFloa85Md2uH6W9ajbJPrl/5TGyT36 Hr4JKMKAnpCnQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 35CABC4829C; Thu, 8 Feb 2024 05:51:33 +0000 (UTC) From: =?utf-8?b?QXLEsW7DpyDDnE5BTA==?= via B4 Relay Date: Thu, 08 Feb 2024 08:51:32 +0300 Subject: [PATCH netnext 4/8] net: dsa: mt7530: get rid of useless error returns on phylink code path MIME-Version: 1.0 Message-Id: <20240208-for-netnext-mt7530-improvements-3-v1-4-d7c1cfd502ca@arinc9.com> References: <20240208-for-netnext-mt7530-improvements-3-v1-0-d7c1cfd502ca@arinc9.com> In-Reply-To: <20240208-for-netnext-mt7530-improvements-3-v1-0-d7c1cfd502ca@arinc9.com> To: Daniel Golle , DENG Qingfang , Sean Wang , Andrew Lunn , Florian Fainelli , Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Matthias Brugger , AngeloGioacchino Del Regno , Russell King Cc: mithat.guner@xeront.com, erkin.bozoglu@xeront.com, Bartel Eerdekens , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, =?utf-8?b?QXLEsW7DpyDDnE5BTA==?= X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=ed25519-sha256; t=1707371489; l=6745; i=arinc.unal@arinc9.com; s=arinc9-patatt; h=from:subject:message-id; bh=EL1vGonmNpBImZU3uthb96aDLRU2riphSBzoDbxXdI8=; b=+ZfTF2PzXOAXJWhWYzvsWUbt3wlj8uFvX0J+2ylIt9WHjutCGTQCJj+dufi/SMtYZ8uWHmuSv gpM4l26s9iXBD7yzQC6105Z1XYp1dzZHcHSWaXqh0fWyy0EpWa8PSZN X-Developer-Key: i=arinc.unal@arinc9.com; a=ed25519; pk=VmvgMWwm73yVIrlyJYvGtnXkQJy9CvbaeEqPQO9Z4kA= X-Endpoint-Received: by B4 Relay for arinc.unal@arinc9.com/arinc9-patatt with auth_id=115 X-Original-From: =?utf-8?b?QXLEsW7DpyDDnE5BTA==?= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240207_215136_589039_C2EBBE1D X-CRM114-Status: GOOD ( 18.55 ) 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: , Reply-To: arinc.unal@arinc9.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Arınç ÜNAL Remove error returns on the cases where they are already handled with the function the mac_port_get_caps member in mt753x_table points to. mt7531_mac_config() is also called from mt7531_cpu_port_config() outside of phylink but the port and interface modes are already handled there. Change the functions and the mac_port_config function pointer to void now that there're no error returns anymore. Remove mt753x_is_mac_port() that used to help the said error returns. On mt7531_mac_config(), switch to if statements to simplify the code. Remove internal phy cases from mt753x_phylink_mac_config(), there is no need to check the interface mode as that's already handled with the function the mac_port_get_caps member in mt753x_table points to. Signed-off-by: Arınç ÜNAL Acked-by: Daniel Golle Tested-by: Daniel Golle Signed-off-by: Arınç ÜNAL --- drivers/net/dsa/mt7530.c | 81 ++++++++++-------------------------------------- drivers/net/dsa/mt7530.h | 6 ++-- 2 files changed, 19 insertions(+), 68 deletions(-) diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 296711fd5c43..c069bf273733 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -2587,7 +2587,7 @@ static void mt7988_mac_port_get_caps(struct dsa_switch *ds, int port, } } -static int +static void mt7530_mac_config(struct dsa_switch *ds, int port, unsigned int mode, phy_interface_t interface) { @@ -2597,22 +2597,14 @@ mt7530_mac_config(struct dsa_switch *ds, int port, unsigned int mode, mt7530_setup_port5(priv->ds, interface); else if (port == 6) mt7530_setup_port6(priv->ds, interface); - - return 0; } -static int mt7531_rgmii_setup(struct mt7530_priv *priv, u32 port, - phy_interface_t interface, - struct phy_device *phydev) +static void mt7531_rgmii_setup(struct mt7530_priv *priv, u32 port, + phy_interface_t interface, + struct phy_device *phydev) { u32 val; - if (priv->p5_sgmii) { - dev_err(priv->dev, "RGMII mode is not available for port %d\n", - port); - return -EINVAL; - } - val = mt7530_read(priv, MT7531_CLKGEN_CTRL); val |= GP_CLK_EN; val &= ~GP_MODE_MASK; @@ -2640,20 +2632,14 @@ static int mt7531_rgmii_setup(struct mt7530_priv *priv, u32 port, case PHY_INTERFACE_MODE_RGMII_ID: break; default: - return -EINVAL; + break; } } - mt7530_write(priv, MT7531_CLKGEN_CTRL, val); - - return 0; -} -static bool mt753x_is_mac_port(u32 port) -{ - return (port == 5 || port == 6); + mt7530_write(priv, MT7531_CLKGEN_CTRL, val); } -static int +static void mt7531_mac_config(struct dsa_switch *ds, int port, unsigned int mode, phy_interface_t interface) { @@ -2661,42 +2647,21 @@ mt7531_mac_config(struct dsa_switch *ds, int port, unsigned int mode, struct phy_device *phydev; struct dsa_port *dp; - if (!mt753x_is_mac_port(port)) { - dev_err(priv->dev, "port %d is not a MAC port\n", port); - return -EINVAL; - } - - switch (interface) { - case PHY_INTERFACE_MODE_RGMII: - case PHY_INTERFACE_MODE_RGMII_ID: - case PHY_INTERFACE_MODE_RGMII_RXID: - case PHY_INTERFACE_MODE_RGMII_TXID: + if (phy_interface_mode_is_rgmii(interface)) { dp = dsa_to_port(ds, port); phydev = dp->user->phydev; - return mt7531_rgmii_setup(priv, port, interface, phydev); - case PHY_INTERFACE_MODE_SGMII: - case PHY_INTERFACE_MODE_NA: - case PHY_INTERFACE_MODE_1000BASEX: - case PHY_INTERFACE_MODE_2500BASEX: - /* handled in SGMII PCS driver */ - return 0; - default: - return -EINVAL; + mt7531_rgmii_setup(priv, port, interface, phydev); } - - return -EINVAL; } -static int +static void mt753x_mac_config(struct dsa_switch *ds, int port, unsigned int mode, const struct phylink_link_state *state) { struct mt7530_priv *priv = ds->priv; - if (!priv->info->mac_port_config) - return 0; - - return priv->info->mac_port_config(ds, port, mode, state->interface); + if (priv->info->mac_port_config) + priv->info->mac_port_config(ds, port, mode, state->interface); } static struct phylink_pcs * @@ -2725,17 +2690,11 @@ mt753x_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode, u32 mcr_cur, mcr_new; switch (port) { - case 0 ... 4: - if (state->interface != PHY_INTERFACE_MODE_GMII && - state->interface != PHY_INTERFACE_MODE_INTERNAL) - goto unsupported; - break; case 5: if (priv->p5_interface == state->interface) break; - if (mt753x_mac_config(ds, port, mode, state) < 0) - goto unsupported; + mt753x_mac_config(ds, port, mode, state); if (priv->p5_intf_sel != P5_DISABLED) priv->p5_interface = state->interface; @@ -2744,16 +2703,10 @@ mt753x_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode, if (priv->p6_interface == state->interface) break; - if (mt753x_mac_config(ds, port, mode, state) < 0) - goto unsupported; + mt753x_mac_config(ds, port, mode, state); priv->p6_interface = state->interface; break; - default: -unsupported: - dev_err(ds->dev, "%s: unsupported %s port: %i\n", - __func__, phy_modes(state->interface), port); - return; } mcr_cur = mt7530_read(priv, MT7530_PMCR_P(port)); @@ -2836,7 +2789,6 @@ mt7531_cpu_port_config(struct dsa_switch *ds, int port) struct mt7530_priv *priv = ds->priv; phy_interface_t interface; int speed; - int ret; switch (port) { case 5: @@ -2861,9 +2813,8 @@ mt7531_cpu_port_config(struct dsa_switch *ds, int port) else speed = SPEED_1000; - ret = mt7531_mac_config(ds, port, MLO_AN_FIXED, interface); - if (ret) - return ret; + mt7531_mac_config(ds, port, MLO_AN_FIXED, interface); + mt7530_write(priv, MT7530_PMCR_P(port), PMCR_CPU_PORT_SETTING(priv->id)); mt753x_phylink_mac_link_up(ds, port, MLO_AN_FIXED, interface, NULL, diff --git a/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h index 26a6d2160c08..b1665de7f640 100644 --- a/drivers/net/dsa/mt7530.h +++ b/drivers/net/dsa/mt7530.h @@ -730,9 +730,9 @@ struct mt753x_info { void (*mac_port_validate)(struct dsa_switch *ds, int port, phy_interface_t interface, unsigned long *supported); - int (*mac_port_config)(struct dsa_switch *ds, int port, - unsigned int mode, - phy_interface_t interface); + void (*mac_port_config)(struct dsa_switch *ds, int port, + unsigned int mode, + phy_interface_t interface); }; /* struct mt7530_priv - This is the main data structure for holding the state