From patchwork Tue Aug 22 08:10:56 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oza Pawandeep X-Patchwork-Id: 9914483 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.web.codeaurora.org (Postfix) with ESMTP id 58121603FF for ; Tue, 22 Aug 2017 08:12:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 64C2D287EC for ; Tue, 22 Aug 2017 08:12:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 594D12881A; Tue, 22 Aug 2017 08:12:48 +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=-6.5 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,RCVD_IN_DNSWL_HI,RCVD_IN_SORBS_SPAM 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 0880C28806 for ; Tue, 22 Aug 2017 08:12:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932503AbdHVILo (ORCPT ); Tue, 22 Aug 2017 04:11:44 -0400 Received: from mail-wr0-f182.google.com ([209.85.128.182]:33499 "EHLO mail-wr0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932496AbdHVILk (ORCPT ); Tue, 22 Aug 2017 04:11:40 -0400 Received: by mail-wr0-f182.google.com with SMTP id a47so4004476wra.0 for ; Tue, 22 Aug 2017 01:11:39 -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=BzSBWQgqqgLZJQbiLmgxXhrI3vB+Sm3cZahjPE9owsdBcHEEl7qA6DDMRlffb27Vny tQCvcGpLGLLa74ycef4fPwKVsh/oWhtldvuMSH0icrm6CwyYXWPJIEJVDF5Y8SyfTPSt 8DOkBV9sLjt/Paql8R0tp2885j8fwjXDX32uI= 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=c8sLuGYVvaYQ9ZCiC+Q9CBGDvsVRYyfdFKPTpRwOfKD+hRaTNDRYaph/n6JY3MuDWc Tu1WT0dbzaiBSp+j/3OxrMldxbpdju0oBbkftVIi0uRBcR+S74yWd/tAnjbKuSqX/VI+ 7s+QmZZE4ILx4BgzP7Gn2NLJiJAYdCzMWycGMM3IYH4tKSYwrnerOju/cloiRfLpUxhM jmxUDJeRunqmplep6Olb35QB3MehiLkHJl+JicXEj8aEFtVsTXa71C3ac7Jzx3YDV93z z3iggKaJpOSq7Ne9uRkHH3nndTrCq0Zf840s2mi010DiBG7NKSqlHEHlbK1Ejtbsnsc7 tvcA== X-Gm-Message-State: AHYfb5gxYfhVyrXqWO4WuOG0CNo2IysmOoFEaG86pWkxSXfPnmmMUiOU 811bCdD8fusj49Yd X-Received: by 10.28.49.136 with SMTP id x130mr3768824wmx.148.1503389498665; Tue, 22 Aug 2017 01:11:38 -0700 (PDT) Received: from anjanavk-OptiPlex-7010.dhcp.avagotech.net ([192.19.237.250]) by smtp.gmail.com with ESMTPSA id 6sm11300681wrn.52.2017.08.22.01.11.31 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 22 Aug 2017 01:11:37 -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 v3 3/3] dt-bindings: PCI iproc: Add optional property prsnt-gpios Date: Tue, 22 Aug 2017 13:40:56 +0530 Message-Id: <1503389456-27373-4-git-send-email-oza.oza@broadcom.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1503389456-27373-1-git-send-email-oza.oza@broadcom.com> References: <1503389456-27373-1-git-send-email-oza.oza@broadcom.com> 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 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";