From patchwork Thu Aug 24 08:49:08 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oza Pawandeep X-Patchwork-Id: 9919575 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 73CED60353 for ; Thu, 24 Aug 2017 08:51:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 647A6289DA for ; Thu, 24 Aug 2017 08:51:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5721C28BB9; Thu, 24 Aug 2017 08:51:19 +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=-2.6 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id AB52C289DA for ; Thu, 24 Aug 2017 08:51:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=+Rga9Urjqf0iPxrAFZ5W3RWK5gTECfFIs3rkQuzFfsE=; b=Xmo/cT2z1cmYYm CCXKBwECnA1rg0EpwvqKanF/0FBMIhLXWReP6BOp1xq2jSzFoxQMc2wd8r/lyVaJU5cxzEis8sCVz PqILo8l/JRumYI//JdJuP/xHUSsJHJaFxZbK1bpVcrfMfWozs7ij2TwquBSHKvRpjdK1g5edOWi8J a0v6OIX5lmweQC1L7/Ksak3yV1xA+aWG3j/nqXHyziGbOudCWiPi310+S+aa1aKNWCo+RVM6hBZlC ggNs65Q9h9/2+gBqzCWWIQdFFl5Do0CinWoKSnafiQjhHLu8Gl4gVpcZsHpf7YIIO89WWUtVFjYSM pjgcZ941EeiXYfP9hPmg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dknr7-0005JT-T1; Thu, 24 Aug 2017 08:51:13 +0000 Received: from mail-wm0-x229.google.com ([2a00:1450:400c:c09::229]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dknpr-0002jg-Ui for linux-arm-kernel@lists.infradead.org; Thu, 24 Aug 2017 08:50:14 +0000 Received: by mail-wm0-x229.google.com with SMTP id i17so5262050wmb.0 for ; Thu, 24 Aug 2017 01:49:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:subject:date:message-id:in-reply-to:references; bh=o6cEcsqRAuGlI1YidfFLpTmrRn4mX6equzUQ9hChpWM=; b=FkEorRfiXbdRfe+BEOUNLgeMwJvFIm7MxSB70kpeRLpsgPBaqT0D6JiTm7tdZzWro/ wVQv60CQ6Q+xa4UjAGYsVk1zrTzSUWC7hkS9ma1OiLkwL75FeEFLK6EKSkh6DA8v4k+C dfllTX3kUdbgrxv6a8tOQXTvTvFEW7FNkg5dE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=o6cEcsqRAuGlI1YidfFLpTmrRn4mX6equzUQ9hChpWM=; b=uL5rljHa4/8ttmPsEwIsXJo3jHN367T33ZJhjBZJk7STwVZWuzOH2sIkkhoYUWqo++ SmXdDs373DJ+HVERN3H38LO36wdPlsLdjKsj9P+5SZWD5qjbZ7IOjv54N9ZPRQWi7USi i20I9GilBQSgECMXTiy4AlS4i7lzu4OhchpCUYCoTjCpEFvyOPRfmmtc2zvvNW9OY5zE b0gRoCkWVvVs+BoUg0oETklNanHYOi8GNdPHgzfkfO6AR9dSmphlv6hDbeNbZImPTd/u lJDpcSftprYklFxDK/zRpRqBR7/irpdQd0hnEHuIwWrAmaVDn16ceOwlhYYbfFcmtMVF InHQ== X-Gm-Message-State: AHYfb5gtin/WOy4Und6bqS9TOXRzxBemsH/QPp0T1pKo9uS0uQuMt0O6 3bNWDSQB0Wj1Dyq5 X-Received: by 10.28.167.212 with SMTP id q203mr3690750wme.23.1503564574103; Thu, 24 Aug 2017 01:49:34 -0700 (PDT) Received: from anjanavk-OptiPlex-7010.dhcp.avagotech.net ([192.19.237.250]) by smtp.gmail.com with ESMTPSA id g133sm6592832wmd.48.2017.08.24.01.49.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 24 Aug 2017 01:49:33 -0700 (PDT) From: Oza Pawandeep To: Bjorn Helgaas , , Rob Herring , Mark Rutland , Ray Jui , Scott Branden , Jon Mason , bcm-kernel-feedback-list@broadcom.com, Oza Pawandeep , Andy Gospodarek , linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Oza Pawandeep Subject: [PATCH v4 3/3] dt-bindings: PCI iproc: add optional property prsnt-gpios Date: Thu, 24 Aug 2017 14:19:08 +0530 Message-Id: <1503564548-1834-4-git-send-email-oza.oza@broadcom.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1503564548-1834-1-git-send-email-oza.oza@broadcom.com> References: <1503564548-1834-1-git-send-email-oza.oza@broadcom.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170824_014956_800885_38C42BB3 X-CRM114-Status: UNSURE ( 8.13 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add description for optional device tree property 'prsnt-gpios' for PCI hotplug feature. Signed-off-by: Oza Pawandeep Reviewed-by: Ray Jui diff --git a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt index b8e48b4..0c5f631 100644 --- a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt +++ b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt @@ -72,6 +72,20 @@ Optional properties: - brcm,pcie-msi-inten: Needs to be present for some older iProc platforms that require the interrupt enable registers to be set explicitly to enable MSI +Optional properties: +- slot-pluggable: PCI hotplug feature is supported. +- prsnt-gpios: Array of gpios, needs to be present if Hotplug is supported. + +Refer to the following binding documents for more detailed description on +the use of 'slot-pluggable' and 'prsnt-gpios'. + Documentation/devicetree/bindings/pci/pci.txt + +Example: +prsnt-gpios: <&pca9505 32 1>, <&pca9505 33 1>; +This is x4 connector: monitoring max 2 present lines. +prsnt-gpios: <&pca9505 32 1>, <&pca9505 33 1>, <&pca9505 34 1>; +This is x8 connector: monitoring max 3 present lines. + Example: pcie0: pcie@18012000 { compatible = "brcm,iproc-pcie";