From nobody Mon Sep 8 12:12:02 2025 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 940D7CDB474 for ; Tue, 17 Oct 2023 09:43:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343505AbjJQJni (ORCPT ); Tue, 17 Oct 2023 05:43:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42012 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234788AbjJQJne (ORCPT ); Tue, 17 Oct 2023 05:43:34 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 77A638E; Tue, 17 Oct 2023 02:43:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1697535813; x=1729071813; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+X2kCoRy+dl1KBYTHqUJu0TAPbBI+uMaaA3lR14/a70=; b=HA/lxa3y5oHvZM7oyJ8+h0C9PBPgOOvhq6eK2K5VuueaAdNveBW8Y4yR QM72vEIcII2zUMyvj8gOyQaROF1aBJOZEk9n3dNJoMJZwF/UsDIybrM3i 4Roe5Baa1onHzoAC47BI2UcwNVLkMJVweeST6itDhNhlL70PXj2FJVbmU Y3HKX2YuUOW3vPhXZCvFk8ilnQ+NTvd3OKYkhwlMO73bLZt6Qq02591Yt pnvOd3I0UD5OhiAjg9Jvspd3C8VaL6As03JV3osvVUFADWuDEh8tYZiQ4 pP6RHr916Do9oxXfRh0sCmVMEdMuR5P412+lHlT2ipuL+DOToO6LHSsfL Q==; X-CSE-ConnectionGUID: Ak13SLc/QnG3Q9MHCoEDCQ== X-CSE-MsgGUID: OSvluaMUQGCwa+04zUm8bw== X-ThreatScanner-Verdict: Negative X-IronPort-AV: E=Sophos;i="6.03,231,1694761200"; d="scan'208";a="10624543" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa1.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 17 Oct 2023 02:43:32 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Tue, 17 Oct 2023 02:43:22 -0700 Received: from HYD-DK-UNGSW21.microchip.com (10.10.85.11) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2507.21 via Frontend Transport; Tue, 17 Oct 2023 02:43:19 -0700 From: Raju Lakkaraju To: CC: , , , , , , Subject: [PATCH net-next V1 1/7] net: lan743x: Create separate PCS power reset function Date: Tue, 17 Oct 2023 15:12:02 +0530 Message-ID: <20231017094208.4956-2-Raju.Lakkaraju@microchip.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231017094208.4956-1-Raju.Lakkaraju@microchip.com> References: <20231017094208.4956-1-Raju.Lakkaraju@microchip.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Create separate PCS power reset function from lan743x_sgmii_config () to use as subroutine. Signed-off-by: Raju Lakkaraju --- drivers/net/ethernet/microchip/lan743x_main.c | 55 ++++++++++--------- 1 file changed, 29 insertions(+), 26 deletions(-) diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/et= hernet/microchip/lan743x_main.c index f940895b14e8..1432032b795b 100644 --- a/drivers/net/ethernet/microchip/lan743x_main.c +++ b/drivers/net/ethernet/microchip/lan743x_main.c @@ -1145,12 +1145,39 @@ static int lan743x_pcs_seq_state(struct lan743x_ada= pter *adapter, u8 state) return 0; } =20 +static int lan743x_pcs_power_reset(struct lan743x_adapter *adapter) +{ + int mii_ctl; + int ret; + + /* SGMII/1000/2500BASE-X PCS power down */ + mii_ctl =3D lan743x_sgmii_read(adapter, MDIO_MMD_VEND2, MII_BMCR); + if (mii_ctl < 0) + return mii_ctl; + + mii_ctl |=3D BMCR_PDOWN; + ret =3D lan743x_sgmii_write(adapter, MDIO_MMD_VEND2, MII_BMCR, mii_ctl); + if (ret < 0) + return ret; + + ret =3D lan743x_pcs_seq_state(adapter, PCS_POWER_STATE_DOWN); + if (ret < 0) + return ret; + + /* SGMII/1000/2500BASE-X PCS power up */ + mii_ctl &=3D ~BMCR_PDOWN; + ret =3D lan743x_sgmii_write(adapter, MDIO_MMD_VEND2, MII_BMCR, mii_ctl); + if (ret < 0) + return ret; + + return lan743x_pcs_seq_state(adapter, PCS_POWER_STATE_UP); +} + static int lan743x_sgmii_config(struct lan743x_adapter *adapter) { struct net_device *netdev =3D adapter->netdev; struct phy_device *phydev =3D netdev->phydev; enum lan743x_sgmii_lsd lsd =3D POWER_DOWN; - int mii_ctl; bool status; int ret; =20 @@ -1207,31 +1234,7 @@ static int lan743x_sgmii_config(struct lan743x_adapt= er *adapter) netif_dbg(adapter, drv, adapter->netdev, "SGMII 1G mode enable\n"); =20 - /* SGMII/1000/2500BASE-X PCS power down */ - mii_ctl =3D lan743x_sgmii_read(adapter, MDIO_MMD_VEND2, MII_BMCR); - if (mii_ctl < 0) - return mii_ctl; - - mii_ctl |=3D BMCR_PDOWN; - ret =3D lan743x_sgmii_write(adapter, MDIO_MMD_VEND2, MII_BMCR, mii_ctl); - if (ret < 0) - return ret; - - ret =3D lan743x_pcs_seq_state(adapter, PCS_POWER_STATE_DOWN); - if (ret < 0) - return ret; - - /* SGMII/1000/2500BASE-X PCS power up */ - mii_ctl &=3D ~BMCR_PDOWN; - ret =3D lan743x_sgmii_write(adapter, MDIO_MMD_VEND2, MII_BMCR, mii_ctl); - if (ret < 0) - return ret; - - ret =3D lan743x_pcs_seq_state(adapter, PCS_POWER_STATE_UP); - if (ret < 0) - return ret; - - return 0; + return lan743x_pcs_power_reset(adapter); } =20 static void lan743x_mac_set_address(struct lan743x_adapter *adapter, --=20 2.34.1