From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 C5A1AC433E0 for ; Tue, 2 Jun 2020 11:55:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A33F9207D8 for ; Tue, 2 Jun 2020 11:55:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="EpGEXjAV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728346AbgFBLzM (ORCPT ); Tue, 2 Jun 2020 07:55:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35078 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727818AbgFBLyc (ORCPT ); Tue, 2 Jun 2020 07:54:32 -0400 Received: from mail-wm1-x341.google.com (mail-wm1-x341.google.com [IPv6:2a00:1450:4864:20::341]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A6E1BC061A0E; Tue, 2 Jun 2020 04:54:32 -0700 (PDT) Received: by mail-wm1-x341.google.com with SMTP id f5so2816091wmh.2; Tue, 02 Jun 2020 04:54:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=0T+25FzC3m+ZCfSnTnyTsPpwm0TEOUYS6HI+FaVLFf0=; b=EpGEXjAVbgpT2SQTvfPorH9Jt3XX4IeCDlZVxZe+PQESUTeCi+9NJVgEq634nwPMrx YSOlpYHLH/he0+MC/MOR8WRTorq4lau2zj5+TealPjfnt1kDxk++GJoLGFX5trMfp6qL 5QJwy2Yfz6rxx2lzwHjFpKnbk01SJvfyqcfGX5c04rnuftniD5s74ZzEKiNLA/fZnh/H qNz641jfimWPrZcslMTjTppHhi8tqsfEdCHCUp7U3OqAHNLmjW7UvAAONT5J5ZFdJVbo P+HvUONWn5gPydgMw+2wM9HS/PuGcRoCDs4i90kjBS7IG/H+fYBaeguJZBdi40Q9nidU 3O6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=0T+25FzC3m+ZCfSnTnyTsPpwm0TEOUYS6HI+FaVLFf0=; b=nJzcifOCSmmV4ODP+lnpIUmw9vYlhX+a4hSL4n7O4WByuj9wBCXIwZOk5nnaidpwP0 DVGUcxf+kF4CMFKgym7FhoUMcLroM1hSpydnjYYc+iGq7YnKa5ADi4VIDyuqE4kNOhdJ aoxUQM3QHoctPuHDGKOhVqpscpACTmKkvqS6itjIMdw5IlIuFAoRgKHLu9gas9NoTWlC 6CulqWpuwKQNn7WrRoJBx8qQoVLIzFcARl/Fu8lUAVyfFmjt9hNLkFoIkdoFkXOzxCwG InKh2iZ+xd5U9VmwvZz/ccJKqsYsHoQH73SxExiMId161oAz9XI1v9E0RhWgFTuSoqzS 7bZQ== X-Gm-Message-State: AOAM532IkXlDIFVNn3ChMtHIGkV3ftlarkEW6Ycz99XzIOezM2c7IcdU tAtdl6Kgh2ECMtZUXsD4GLc= X-Google-Smtp-Source: ABdhPJyrLJafVl3fMd4w2rhOS1xKBiSk9UehJodvGQ+/mZWt012vRSkIi5Oupuo+3wj83gvwrLca+g== X-Received: by 2002:a1c:dfd7:: with SMTP id w206mr3723154wmg.130.1591098871366; Tue, 02 Jun 2020 04:54:31 -0700 (PDT) Received: from Ansuel-XPS.localdomain (host9-254-dynamic.3-87-r.retail.telecomitalia.it. [87.3.254.9]) by smtp.googlemail.com with ESMTPSA id b18sm3273777wrn.88.2020.06.02.04.54.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Jun 2020 04:54:30 -0700 (PDT) From: Ansuel Smith To: Rob Herring Cc: Ansuel Smith , Sham Muthayyan , stable@vger.kernel.org, Rob Herring , Philipp Zabel , Andy Gross , Bjorn Andersson , Bjorn Helgaas , Mark Rutland , Stanimir Varbanov , Lorenzo Pieralisi , Andrew Murray , linux-arm-msm@vger.kernel.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 04/11] PCI: qcom: Add missing reset for ipq806x Date: Tue, 2 Jun 2020 13:53:45 +0200 Message-Id: <20200602115353.20143-5-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200602115353.20143-1-ansuelsmth@gmail.com> References: <20200602115353.20143-1-ansuelsmth@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add missing ext reset used by ipq8064 SoC in PCIe qcom driver. Fixes: 82a823833f4e ("PCI: qcom: Add Qualcomm PCIe controller driver") Signed-off-by: Sham Muthayyan Signed-off-by: Ansuel Smith Cc: stable@vger.kernel.org # v4.5+ Reviewed-by: Rob Herring Reviewed-by: Philipp Zabel --- drivers/pci/controller/dwc/pcie-qcom.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index 4512c2c5f61c..4dab5ef630cc 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -95,6 +95,7 @@ struct qcom_pcie_resources_2_1_0 { struct reset_control *ahb_reset; struct reset_control *por_reset; struct reset_control *phy_reset; + struct reset_control *ext_reset; struct regulator_bulk_data supplies[QCOM_PCIE_2_1_0_MAX_SUPPLY]; }; @@ -272,6 +273,10 @@ static int qcom_pcie_get_resources_2_1_0(struct qcom_pcie *pcie) if (IS_ERR(res->por_reset)) return PTR_ERR(res->por_reset); + res->ext_reset = devm_reset_control_get_optional_exclusive(dev, "ext"); + if (IS_ERR(res->ext_reset)) + return PTR_ERR(res->ext_reset); + res->phy_reset = devm_reset_control_get_exclusive(dev, "phy"); return PTR_ERR_OR_ZERO(res->phy_reset); } @@ -285,6 +290,7 @@ static void qcom_pcie_deinit_2_1_0(struct qcom_pcie *pcie) reset_control_assert(res->axi_reset); reset_control_assert(res->ahb_reset); reset_control_assert(res->por_reset); + reset_control_assert(res->ext_reset); reset_control_assert(res->phy_reset); clk_disable_unprepare(res->iface_clk); clk_disable_unprepare(res->core_clk); @@ -343,6 +349,12 @@ static int qcom_pcie_init_2_1_0(struct qcom_pcie *pcie) goto err_deassert_ahb; } + ret = reset_control_deassert(res->ext_reset); + if (ret) { + dev_err(dev, "cannot deassert ext reset\n"); + goto err_deassert_ahb; + } + /* enable PCIe clocks and resets */ val = readl(pcie->parf + PCIE20_PARF_PHY_CTRL); val &= ~BIT(0); -- 2.25.1