From patchwork Mon Jan 14 11:15:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kishon Vijay Abraham I X-Patchwork-Id: 10762085 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 149596C2 for ; Mon, 14 Jan 2019 11:16:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 05CF628AB3 for ; Mon, 14 Jan 2019 11:16:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EE40B28AD3; Mon, 14 Jan 2019 11:16:08 +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 984BB28AB3 for ; Mon, 14 Jan 2019 11:16:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726561AbfANLQH (ORCPT ); Mon, 14 Jan 2019 06:16:07 -0500 Received: from lelv0143.ext.ti.com ([198.47.23.248]:45280 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726467AbfANLQH (ORCPT ); Mon, 14 Jan 2019 06:16:07 -0500 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id x0EBFpMX112650; Mon, 14 Jan 2019 05:15:51 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1547464551; bh=cErqiu0ARQGyKCvuDtnfQEI4ZlZ26OR+gjwxCf8dAg4=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=ArSSHRFKI9KTPbeQLpaDKqr2K8cmYef0dHeZAzLhnHzythg/5nWvxQMOzh09b7N97 +JhdYkZnO7rFGfWz5sbyyVjD/Sd98XA4KTVpVY4TqUlWiI3zz/Tf1mDwJO3NsKirl4 xgwly+AsGF/t+LF65kZOUEe3cYRhbWSqqVVd90CQ= Received: from DLEE101.ent.ti.com (dlee101.ent.ti.com [157.170.170.31]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x0EBFpah067081 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 14 Jan 2019 05:15:51 -0600 Received: from DLEE103.ent.ti.com (157.170.170.33) by DLEE101.ent.ti.com (157.170.170.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1591.10; Mon, 14 Jan 2019 05:15:51 -0600 Received: from dflp32.itg.ti.com (10.64.6.15) by DLEE103.ent.ti.com (157.170.170.33) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1591.10 via Frontend Transport; Mon, 14 Jan 2019 05:15:51 -0600 Received: from a0393678ub.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id x0EBFd1U011560; Mon, 14 Jan 2019 05:15:47 -0600 From: Kishon Vijay Abraham I To: Kishon Vijay Abraham I , Lorenzo Pieralisi , Gustavo Pimentel , Alan Douglas , Shawn Lin , Heiko Stuebner CC: Bjorn Helgaas , Jingoo Han , , , , , Subject: [PATCH v2 02/15] PCI: dwc: Add ->get_features() callback function in dw_pcie_ep_ops Date: Mon, 14 Jan 2019 16:45:00 +0530 Message-ID: <20190114111513.21618-3-kishon@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190114111513.21618-1-kishon@ti.com> References: <20190114111513.21618-1-kishon@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 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 Each platform using Designware PCIe core can support different set of endpoint features. Add a new callback function ->get_features() in dw_pcie_ep_ops so that each platform using Designware PCIe core can advertise its supported features to the endpoint function driver. Signed-off-by: Kishon Vijay Abraham I --- drivers/pci/controller/dwc/pcie-designware-ep.c | 12 ++++++++++++ drivers/pci/controller/dwc/pcie-designware.h | 1 + 2 files changed, 13 insertions(+) diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c index a543c45c7224..7a2925a16ab8 100644 --- a/drivers/pci/controller/dwc/pcie-designware-ep.c +++ b/drivers/pci/controller/dwc/pcie-designware-ep.c @@ -355,6 +355,17 @@ static int dw_pcie_ep_start(struct pci_epc *epc) return pci->ops->start_link(pci); } +static const struct pci_epc_features* +dw_pcie_ep_get_features(struct pci_epc *epc, u8 func_no) +{ + struct dw_pcie_ep *ep = epc_get_drvdata(epc); + + if (!ep->ops->get_features) + return NULL; + + return ep->ops->get_features(ep); +} + static const struct pci_epc_ops epc_ops = { .write_header = dw_pcie_ep_write_header, .set_bar = dw_pcie_ep_set_bar, @@ -368,6 +379,7 @@ static const struct pci_epc_ops epc_ops = { .raise_irq = dw_pcie_ep_raise_irq, .start = dw_pcie_ep_start, .stop = dw_pcie_ep_stop, + .get_features = dw_pcie_ep_get_features, }; int dw_pcie_ep_raise_legacy_irq(struct dw_pcie_ep *ep, u8 func_no) diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index 9943d8c68335..1f56e6ae34ff 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -192,6 +192,7 @@ struct dw_pcie_ep_ops { 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); + const struct pci_epc_features* (*get_features)(struct dw_pcie_ep *ep); }; struct dw_pcie_ep {