From patchwork Mon Feb 8 13:55:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 378998 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C3EEC433E0 for ; Mon, 8 Feb 2021 14:00:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 34D2764E54 for ; Mon, 8 Feb 2021 14:00:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232303AbhBHOA2 (ORCPT ); Mon, 8 Feb 2021 09:00:28 -0500 Received: from mail.baikalelectronics.com ([87.245.175.226]:57078 "EHLO mail.baikalelectronics.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231909AbhBHN5v (ORCPT ); Mon, 8 Feb 2021 08:57:51 -0500 From: Serge Semin To: Rob Herring , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Jakub Kicinski , Johan Hovold , Maxime Ripard , Joao Pinto , Lars Persson , Maxime Coquelin CC: Serge Semin , Serge Semin , Alexey Malahov , Pavel Parkhomenko , Vyacheslav Mitrofanov , , , , , Subject: [PATCH v2 13/24] net: stmmac: Fix clocks left enabled on glue-probes failure Date: Mon, 8 Feb 2021 16:55:57 +0300 Message-ID: <20210208135609.7685-14-Sergey.Semin@baikalelectronics.ru> In-Reply-To: <20210208135609.7685-1-Sergey.Semin@baikalelectronics.ru> References: <20210208135609.7685-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The generic clocks request and preparation have been moved from stmmac_dvr_probe()/stmmac_init_ptp() to the stmmac_probe_config_dt() method in the framework of commit f573c0b9c4e0 ("stmmac: move stmmac_clk, pclk, clk_ptp_ref and stmmac_rst to platform structure"). At the same time the clocks disabling and reset assertion have been left in stmmac_dvr_remove() instead of also being moved to the symmetric antagonistic method - stmmac_remove_config_dt(). Due to that all the glue drivers probe cleanup-on-failure paths don't perform the generic clocks disable/unprepare procedure, which of course is wrong. Fix it by moving the clocks disable/unprepare methods invocation to the stmmac_remove_config_dt() function. Fixes: f573c0b9c4e0 ("stmmac: move stmmac_clk, pclk, clk_ptp_ref and stmmac_rst to platform structure") Signed-off-by: Serge Semin --- drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c | 2 ++ drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 -- drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 4 +++- 3 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c index 103d2448e9e0..56b914b5527a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c @@ -665,6 +665,8 @@ static void intel_eth_pci_remove(struct pci_dev *pdev) pci_free_irq_vectors(pdev); + clk_disable_unprepare(priv->plat->stmmac_clk); + clk_unregister_fixed_rate(priv->plat->stmmac_clk); pcim_iounmap_regions(pdev, BIT(0)); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 26b971cd4da5..b371842d9337 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -5157,8 +5157,6 @@ int stmmac_dvr_remove(struct device *dev) phylink_destroy(priv->phylink); if (priv->plat->stmmac_rst) reset_control_assert(priv->plat->stmmac_rst); - clk_disable_unprepare(priv->plat->pclk); - clk_disable_unprepare(priv->plat->stmmac_clk); if (priv->hw->pcs != STMMAC_PCS_TBI && priv->hw->pcs != STMMAC_PCS_RTBI) stmmac_mdio_unregister(ndev); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index c9feac70ca77..ff66c470f07f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -621,11 +621,13 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac) * @pdev: platform_device structure * @plat: driver data platform structure * - * Release resources claimed by stmmac_probe_config_dt(). + * Disable and release resources claimed by stmmac_probe_config_dt(). */ void stmmac_remove_config_dt(struct platform_device *pdev, struct plat_stmmacenet_data *plat) { + clk_disable_unprepare(plat->pclk); + clk_disable_unprepare(plat->stmmac_clk); of_node_put(plat->phy_node); of_node_put(plat->mdio_node); }