From patchwork Wed Aug 31 06:55:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hongxing Zhu X-Patchwork-Id: 12960457 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 1F9D6ECAAD1 for ; Wed, 31 Aug 2022 07:17:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231128AbiHaHR4 (ORCPT ); Wed, 31 Aug 2022 03:17:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37990 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229998AbiHaHRS (ORCPT ); Wed, 31 Aug 2022 03:17:18 -0400 Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E516F8C014; Wed, 31 Aug 2022 00:13:45 -0700 (PDT) Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 34E12202067; Wed, 31 Aug 2022 09:13:39 +0200 (CEST) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id F030A20203E; Wed, 31 Aug 2022 09:13:38 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 478E8180222C; Wed, 31 Aug 2022 15:13:37 +0800 (+08) From: Richard Zhu To: a.fatoum@pengutronix.de, l.stach@pengutronix.de, bhelgaas@google.com, lorenzo.pieralisi@arm.com, vkoul@kernel.org, marcel.ziswiler@toradex.com, kishon@ti.com Cc: hongxing.zhu@nxp.com, linux-phy@lists.infradead.org, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, linux-imx@nxp.com Subject: [PATCH v2] phy: freescale: imx8m-pcie: Fix the wrong order of phy_init() and phy_power_on() Date: Wed, 31 Aug 2022 14:55:56 +0800 Message-Id: <1661928956-12727-1-git-send-email-hongxing.zhu@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Refer to phy_core driver, phy_init() must be called before phy_power_on(). Fix the wrong order of phy_init() and phy_power_on() here. Squash the changes into one patch to avoid the possible bi-section hole. Fixes: 1aa97b002258 ("phy: freescale: pcie: Initialize the imx8 pcie standalone phy driver") Signed-off-by: Richard Zhu Tested-by: Alexander Stein Acked-By: Vinod Koul --- drivers/pci/controller/dwc/pci-imx6.c | 6 +++--- drivers/phy/freescale/phy-fsl-imx8m-pcie.c | 8 ++++---- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index 6e5debdbc55b..b5f0de455a7b 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -935,7 +935,7 @@ static int imx6_pcie_host_init(struct dw_pcie_rp *pp) } if (imx6_pcie->phy) { - ret = phy_power_on(imx6_pcie->phy); + ret = phy_init(imx6_pcie->phy); if (ret) { dev_err(dev, "pcie PHY power up failed\n"); goto err_clk_disable; @@ -949,7 +949,7 @@ static int imx6_pcie_host_init(struct dw_pcie_rp *pp) } if (imx6_pcie->phy) { - ret = phy_init(imx6_pcie->phy); + ret = phy_power_on(imx6_pcie->phy); if (ret) { dev_err(dev, "waiting for PHY ready timeout!\n"); goto err_phy_off; @@ -961,7 +961,7 @@ static int imx6_pcie_host_init(struct dw_pcie_rp *pp) err_phy_off: if (imx6_pcie->phy) - phy_power_off(imx6_pcie->phy); + phy_exit(imx6_pcie->phy); err_clk_disable: imx6_pcie_clk_disable(imx6_pcie); err_reg_disable: diff --git a/drivers/phy/freescale/phy-fsl-imx8m-pcie.c b/drivers/phy/freescale/phy-fsl-imx8m-pcie.c index ad7d2edfc414..c93286483b42 100644 --- a/drivers/phy/freescale/phy-fsl-imx8m-pcie.c +++ b/drivers/phy/freescale/phy-fsl-imx8m-pcie.c @@ -59,7 +59,7 @@ struct imx8_pcie_phy { bool clkreq_unused; }; -static int imx8_pcie_phy_init(struct phy *phy) +static int imx8_pcie_phy_power_on(struct phy *phy) { int ret; u32 val, pad_mode; @@ -137,14 +137,14 @@ static int imx8_pcie_phy_init(struct phy *phy) return ret; } -static int imx8_pcie_phy_power_on(struct phy *phy) +static int imx8_pcie_phy_init(struct phy *phy) { struct imx8_pcie_phy *imx8_phy = phy_get_drvdata(phy); return clk_prepare_enable(imx8_phy->clk); } -static int imx8_pcie_phy_power_off(struct phy *phy) +static int imx8_pcie_phy_exit(struct phy *phy) { struct imx8_pcie_phy *imx8_phy = phy_get_drvdata(phy); @@ -155,8 +155,8 @@ static int imx8_pcie_phy_power_off(struct phy *phy) static const struct phy_ops imx8_pcie_phy_ops = { .init = imx8_pcie_phy_init, + .exit = imx8_pcie_phy_exit, .power_on = imx8_pcie_phy_power_on, - .power_off = imx8_pcie_phy_power_off, .owner = THIS_MODULE, };