From patchwork Wed May 10 06:22:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshihiro Shimoda X-Patchwork-Id: 13236489 X-Patchwork-Delegate: geert@linux-m68k.org 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 DB8D4C7EE22 for ; Wed, 10 May 2023 06:22:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236032AbjEJGWr (ORCPT ); Wed, 10 May 2023 02:22:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33084 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236003AbjEJGWn (ORCPT ); Wed, 10 May 2023 02:22:43 -0400 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id A4E254218; Tue, 9 May 2023 23:22:41 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.99,263,1677510000"; d="scan'208";a="162314837" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie6.idc.renesas.com with ESMTP; 10 May 2023 15:22:37 +0900 Received: from localhost.localdomain (unknown [10.166.15.32]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id A7ABC401140A; Wed, 10 May 2023 15:22:37 +0900 (JST) From: Yoshihiro Shimoda To: jingoohan1@gmail.com, mani@kernel.org, gustavo.pimentel@synopsys.com, fancer.lancer@gmail.com, lpieralisi@kernel.org, robh+dt@kernel.org, kw@linux.com, bhelgaas@google.com, kishon@kernel.org Cc: marek.vasut+renesas@gmail.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Yoshihiro Shimoda , Thierry Reding , Jonathan Hunter Subject: [PATCH v16 12/22] PCI: tegra194: Drop PCI_EXP_LNKSTA_NLW setting. Date: Wed, 10 May 2023 15:22:24 +0900 Message-Id: <20230510062234.201499-13-yoshihiro.shimoda.uh@renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230510062234.201499-1-yoshihiro.shimoda.uh@renesas.com> References: <20230510062234.201499-1-yoshihiro.shimoda.uh@renesas.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org dw_pcie_setup() will set PCI_EXP_LNKSTA_NLW to PCI_EXP_LNKCAP register so that drop such setting from tegra_pcie_dw_host_init(). Signed-off-by: Yoshihiro Shimoda Cc: Thierry Reding Cc: Jonathan Hunter Reviewed-by: Serge Semin --- drivers/pci/controller/dwc/pcie-tegra194.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c index 4adba379b83d..723a22ccd58c 100644 --- a/drivers/pci/controller/dwc/pcie-tegra194.c +++ b/drivers/pci/controller/dwc/pcie-tegra194.c @@ -901,12 +901,6 @@ static int tegra_pcie_dw_host_init(struct dw_pcie_rp *pp) AMBA_ERROR_RESPONSE_CRS_SHIFT); dw_pcie_writel_dbi(pci, PORT_LOGIC_AMBA_ERROR_RESPONSE_DEFAULT, val); - /* Configure Max lane width from DT */ - val = dw_pcie_readl_dbi(pci, pcie->pcie_cap_base + PCI_EXP_LNKCAP); - val &= ~PCI_EXP_LNKCAP_MLW; - val |= (pcie->num_lanes << PCI_EXP_LNKSTA_NLW_SHIFT); - dw_pcie_writel_dbi(pci, pcie->pcie_cap_base + PCI_EXP_LNKCAP, val); - /* Clear Slot Clock Configuration bit if SRNS configuration */ if (pcie->enable_srns) { val_16 = dw_pcie_readw_dbi(pci, pcie->pcie_cap_base +