From patchwork Fri Jul 22 11:07:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshihiro Shimoda X-Patchwork-Id: 12926371 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 4473ECCA497 for ; Fri, 22 Jul 2022 11:08:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234237AbiGVLIE (ORCPT ); Fri, 22 Jul 2022 07:08:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44134 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234327AbiGVLIA (ORCPT ); Fri, 22 Jul 2022 07:08:00 -0400 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 88B129F063; Fri, 22 Jul 2022 04:07:59 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.93,185,1654527600"; d="scan'208";a="128784526" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 22 Jul 2022 20:07:57 +0900 Received: from localhost.localdomain (unknown [10.166.15.32]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 7BD2541FFA2D; Fri, 22 Jul 2022 20:07:57 +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 v4 05/12] PCI: dwc: Add ep_pre_init() callback to dw_pcie_ep_ops Date: Fri, 22 Jul 2022 20:07:37 +0900 Message-Id: <20220722110744.2274466-6-yoshihiro.shimoda.uh@renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220722110744.2274466-1-yoshihiro.shimoda.uh@renesas.com> References: <20220722110744.2274466-1-yoshihiro.shimoda.uh@renesas.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Some PCIe endpoint controller needs vendor-specific initialization before the common code initialization. Add a nwe callback function ep_pre_init() for it. Signed-off-by: Yoshihiro Shimoda --- drivers/pci/controller/dwc/pcie-designware-ep.c | 3 +++ drivers/pci/controller/dwc/pcie-designware.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c index 055058b6ff42..9a47448026d7 100644 --- a/drivers/pci/controller/dwc/pcie-designware-ep.c +++ b/drivers/pci/controller/dwc/pcie-designware-ep.c @@ -701,6 +701,9 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep) dw_pcie_version_detect(pci); + if (ep->ops->ep_pre_init) + ep->ops->ep_pre_init(ep); + dw_pcie_iatu_detect(pci); ep->ib_window_map = devm_bitmap_zalloc(dev, pci->num_ib_windows, diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index 4b33a78c1c19..0fc96c7cb15c 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -286,6 +286,7 @@ struct dw_pcie_rp { }; struct dw_pcie_ep_ops { + void (*ep_pre_init)(struct dw_pcie_ep *ep); void (*ep_init)(struct dw_pcie_ep *ep); int (*raise_irq)(struct dw_pcie_ep *ep, u8 func_no, enum pci_epc_irq_type type, u16 interrupt_num);