From patchwork Fri Oct 27 07:17:34 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeffy Chen X-Patchwork-Id: 10029249 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C623060249 for ; Fri, 27 Oct 2017 07:21:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B99C922AFC for ; Fri, 27 Oct 2017 07:21:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AE652262FF; Fri, 27 Oct 2017 07:21:00 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable 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 570D322AFC for ; Fri, 27 Oct 2017 07:21:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752078AbdJ0HTI (ORCPT ); Fri, 27 Oct 2017 03:19:08 -0400 Received: from regular1.263xmail.com ([211.150.99.137]:46162 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751605AbdJ0HTG (ORCPT ); Fri, 27 Oct 2017 03:19:06 -0400 Received: from jeffy.chen?rock-chips.com (unknown [192.168.167.243]) by regular1.263xmail.com (Postfix) with ESMTP id 002E4DBE3; Fri, 27 Oct 2017 15:19:01 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost (localhost [127.0.0.1]) by smtp.263.net (Postfix) with ESMTPA id 4477D363; Fri, 27 Oct 2017 15:18:58 +0800 (CST) X-RL-SENDER: jeffy.chen@rock-chips.com X-FST-TO: linux-kernel@vger.kernel.org X-SENDER-IP: 103.29.142.67 X-LOGIN-NAME: jeffy.chen@rock-chips.com X-UNIQUE-TAG: <6cf7da27b31672271a203edc32359095> X-ATTACHMENT-NUM: 0 X-SENDER: cjf@rock-chips.com X-DNS-TYPE: 0 Received: from localhost (unknown [103.29.142.67]) by smtp.263.net (Postfix) whith ESMTP id 19250OZE530; Fri, 27 Oct 2017 15:19:02 +0800 (CST) From: Jeffy Chen To: linux-kernel@vger.kernel.org, bhelgaas@google.com Cc: linux-pm@vger.kernel.org, tony@atomide.com, shawn.lin@rock-chips.com, briannorris@chromium.org, rjw@rjwysocki.net, dianders@chromium.org, Jeffy Chen , Frank Rowand , devicetree@vger.kernel.org, Rob Herring Subject: [RFC PATCH v9 2/7] of/irq: Adjust of_pci_irq parsing for multiple interrupts Date: Fri, 27 Oct 2017 15:17:34 +0800 Message-Id: <20171027071739.21927-3-jeffy.chen@rock-chips.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20171027071739.21927-1-jeffy.chen@rock-chips.com> References: <20171027071739.21927-1-jeffy.chen@rock-chips.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Currently we are considering the first irq as the PCI interrupt pin, but a PCI device may have multiple interrupts(e.g. PCIe WAKE# pin). Only parse the PCI interrupt pin when the irq is unnamed or named as "pci". Signed-off-by: Jeffy Chen --- Changes in v9: None Changes in v8: None Changes in v7: None Changes in v6: None Changes in v5: None Changes in v3: None Changes in v2: None drivers/of/of_pci_irq.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/of/of_pci_irq.c b/drivers/of/of_pci_irq.c index 3a05568f65df..8b69211f0b88 100644 --- a/drivers/of/of_pci_irq.c +++ b/drivers/of/of_pci_irq.c @@ -27,7 +27,18 @@ int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq */ dn = pci_device_to_OF_node(pdev); if (dn) { - rc = of_irq_parse_one(dn, 0, out_irq); + struct property *prop; + const char *name; + int index = 0; + + prop = of_find_property(dn, "interrupt-names", NULL); + for (name = of_prop_next_string(prop, NULL); name; + name = of_prop_next_string(prop, name), index++) { + if (!strcmp(name, "pci")) + break; + } + + rc = of_irq_parse_one(dn, index, out_irq); if (!rc) return rc; }