From patchwork Tue Apr 16 14:15:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vidya Sagar X-Patchwork-Id: 10903203 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 84FC6139A for ; Tue, 16 Apr 2019 14:15:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6F73728644 for ; Tue, 16 Apr 2019 14:15:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6DCBF28A54; Tue, 16 Apr 2019 14:15:48 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AA54C28644 for ; Tue, 16 Apr 2019 14:15:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729432AbfDPOPo (ORCPT ); Tue, 16 Apr 2019 10:15:44 -0400 Received: from hqemgate14.nvidia.com ([216.228.121.143]:13474 "EHLO hqemgate14.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728149AbfDPOPo (ORCPT ); Tue, 16 Apr 2019 10:15:44 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate14.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Tue, 16 Apr 2019 07:15:48 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Tue, 16 Apr 2019 07:15:43 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Tue, 16 Apr 2019 07:15:43 -0700 Received: from HQMAIL111.nvidia.com (172.20.187.18) by HQMAIL103.nvidia.com (172.20.187.11) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 16 Apr 2019 14:15:43 +0000 Received: from HQMAIL108.nvidia.com (172.18.146.13) by HQMAIL111.nvidia.com (172.20.187.18) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 16 Apr 2019 14:15:42 +0000 Received: from hqnvemgw01.nvidia.com (172.20.150.20) by HQMAIL108.nvidia.com (172.18.146.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Tue, 16 Apr 2019 14:15:42 +0000 Received: from vidyas-desktop.nvidia.com (Not Verified[10.24.37.38]) by hqnvemgw01.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Tue, 16 Apr 2019 07:15:42 -0700 From: Vidya Sagar To: , , , , , CC: , , , , , Subject: [PATCH V2 1/2] PCI: dwc: Add API support to de-initialize host Date: Tue, 16 Apr 2019 19:45:15 +0530 Message-ID: <20190416141516.23908-2-vidyas@nvidia.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190416141516.23908-1-vidyas@nvidia.com> References: <20190416141516.23908-1-vidyas@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1555424148; bh=pUiFP+Z9LUBBzgUJW1rnX/SXb+8V4muvYp1eB4jsEtg=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=fg1RGE9xoQ2oe4tMXsgFMnsgzyPXVR5wLv+Am8ACyHGg5oHawHPGuvSdwBCdJlcwS R/vEU7L+GDw3iuGN9JFr2OuTGOJCojuErdElzXuUieoECL3NsBTbg52WY2z4tjk/Jv 2KNBzSNtkFSbyRwViKk89RTFk36Fbn2uqDc0h/jF6UfnN/nWZHQQqr0SfwlfOmFKNt jeA7t677o04utHVXdx0v5/ZddJWSdAw7LBOp6e7y/CfOu4wzr2i+ItnX9uUZytdNlW 9itqJQ1U49yb79hClgI3tpQflopKrCSoJXautbi62JUSQLbz/Q4rdOyz4vA4uEwKjq WBLiTd7BmNRtg== Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add an API to group all the tasks to be done to de-initialize host which can then be called by any DesignWare core based driver implementations while adding .remove() support in their respective drivers. Signed-off-by: Vidya Sagar Acked-by: Gustavo Pimentel --- v2: * s/Designware/DesignWare drivers/pci/controller/dwc/pcie-designware-host.c | 7 +++++++ drivers/pci/controller/dwc/pcie-designware.h | 5 +++++ 2 files changed, 12 insertions(+) diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index 3e4169e738a5..d7881490282d 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -516,6 +516,13 @@ int dw_pcie_host_init(struct pcie_port *pp) return ret; } +void dw_pcie_host_deinit(struct pcie_port *pp) +{ + pci_stop_root_bus(pp->root_bus); + pci_remove_root_bus(pp->root_bus); + dw_pcie_free_msi(pp); +} + static int dw_pcie_access_other_conf(struct pcie_port *pp, struct pci_bus *bus, u32 devfn, int where, int size, u32 *val, bool write) diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index adff0c713665..ea8d1caf11c5 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -343,6 +343,7 @@ void dw_pcie_msi_init(struct pcie_port *pp); void dw_pcie_free_msi(struct pcie_port *pp); void dw_pcie_setup_rc(struct pcie_port *pp); int dw_pcie_host_init(struct pcie_port *pp); +void dw_pcie_host_deinit(struct pcie_port *pp); int dw_pcie_allocate_domains(struct pcie_port *pp); #else static inline irqreturn_t dw_handle_msi_irq(struct pcie_port *pp) @@ -367,6 +368,10 @@ static inline int dw_pcie_host_init(struct pcie_port *pp) return 0; } +static inline void dw_pcie_host_deinit(struct pcie_port *pp) +{ +} + static inline int dw_pcie_allocate_domains(struct pcie_port *pp) { return 0;