From patchwork Fri Jul 1 08:54:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshihiro Shimoda X-Patchwork-Id: 12902989 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 49FF6CCA488 for ; Fri, 1 Jul 2022 08:55:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235792AbiGAIzH (ORCPT ); Fri, 1 Jul 2022 04:55:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37508 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235232AbiGAIzD (ORCPT ); Fri, 1 Jul 2022 04:55:03 -0400 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 4C48B1A040; Fri, 1 Jul 2022 01:55:01 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.92,236,1650898800"; d="scan'208";a="126337068" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 01 Jul 2022 17:54:59 +0900 Received: from localhost.localdomain (unknown [10.166.15.32]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 99CB643E0093; Fri, 1 Jul 2022 17:54:59 +0900 (JST) From: Yoshihiro Shimoda To: lpieralisi@kernel.org, robh+dt@kernel.org, kw@linux.com, bhelgaas@google.com, krzk+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com Cc: marek.vasut+renesas@gmail.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Yoshihiro Shimoda Subject: [PATCH v3 06/13] PCI: dwc: host: Read num-lanes property before host_init() Date: Fri, 1 Jul 2022 17:54:13 +0900 Message-Id: <20220701085420.870306-7-yoshihiro.shimoda.uh@renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220701085420.870306-1-yoshihiro.shimoda.uh@renesas.com> References: <20220701085420.870306-1-yoshihiro.shimoda.uh@renesas.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Vendor-specific initialization needs this information so that read it before host_init(). And then, we can assume that dw_pcie_{ep,host}_init() gets the property so that dw_pcie_setup() doesn't need to get it again. Signed-off-by: Yoshihiro Shimoda --- drivers/pci/controller/dwc/pcie-designware-host.c | 2 ++ drivers/pci/controller/dwc/pcie-designware.c | 1 - 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index 1e3972c487b5..cf875bdcfabb 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -336,6 +336,8 @@ int dw_pcie_host_init(struct pcie_port *pp) if (pci->link_gen < 1) pci->link_gen = of_pci_get_max_link_speed(np); + of_property_read_u32(np, "num-lanes", &pci->num_lanes); + /* Set default bus ops */ bridge->ops = &dw_pcie_ops; bridge->child_ops = &dw_child_pcie_ops; diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c index d92c8a25094f..101e892e22e8 100644 --- a/drivers/pci/controller/dwc/pcie-designware.c +++ b/drivers/pci/controller/dwc/pcie-designware.c @@ -726,7 +726,6 @@ void dw_pcie_setup(struct dw_pcie *pci) val |= PORT_LINK_DLL_LINK_EN; dw_pcie_writel_dbi(pci, PCIE_PORT_LINK_CONTROL, val); - of_property_read_u32(np, "num-lanes", &pci->num_lanes); if (!pci->num_lanes) { dev_dbg(pci->dev, "Using h/w default number of lanes\n"); return;