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: 9919557 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 ED27360353 for ; Thu, 24 Aug 2017 08:50:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DF10C28B7A for ; Thu, 24 Aug 2017 08:50:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D3A7628B97; Thu, 24 Aug 2017 08:50:06 +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=-7.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, 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 6803228B7A for ; Thu, 24 Aug 2017 08:50:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751790AbdHXIti (ORCPT ); Thu, 24 Aug 2017 04:49:38 -0400 Received: from mail-wm0-f43.google.com ([74.125.82.43]:33358 "EHLO mail-wm0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752236AbdHXItf (ORCPT ); Thu, 24 Aug 2017 04:49:35 -0400 Received: by mail-wm0-f43.google.com with SMTP id i17so5262055wmb.0 for ; Thu, 24 Aug 2017 01:49:34 -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=XV4kTYh1n9NYcy/CxyuqAnXb8C/u4LdmOVYbVkevo35m0MwpYaAKPefR29lrhuqYij wL0r/GBFE3CzMGZzcX/+nbxRksneH8QZG8WoYDBIZkCL9x3PKDAeXnhIGxS9fxfSKopN hYeJg0Zf8D2K6qVEkmbnjQRgLa86ECBSMHa9HSbQXC6pPvIqozsR/JkNBW0KTdlUCjGB ivYYGAqRDDOXAuYUlfPPu84z68GrNQoAlm4DEgVNzxnkHHHdoLRKZjanjfSLCI/UD69g HZLgFFZd4EInSAW/2X+ULKp/yM+AomZy8NUSc4autDmlp2hl7HFUvIMdNtJ8ogJRC4tk hBeQ== X-Gm-Message-State: AHYfb5jeVBbKM9OydRzHUjk1nQDsPc3ybcBHX4LQiKUN8IIT2poYD7H0 Ck7XAfRTk5NjXtxa 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> 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";