From patchwork Fri Nov 23 14:18:25 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 10695867 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 A41955A4 for ; Fri, 23 Nov 2018 14:19:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 93EAE2B7BE for ; Fri, 23 Nov 2018 14:19:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 87DAB2B852; Fri, 23 Nov 2018 14:19:17 +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=-7.9 required=2.0 tests=BAYES_00,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 2D80B2B7BE for ; Fri, 23 Nov 2018 14:19:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2439954AbeKXBD0 (ORCPT ); Fri, 23 Nov 2018 20:03:26 -0500 Received: from mail.bootlin.com ([62.4.15.54]:33959 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2436608AbeKXBDB (ORCPT ); Fri, 23 Nov 2018 20:03:01 -0500 Received: by mail.bootlin.com (Postfix, from userid 110) id B312220DBE; Fri, 23 Nov 2018 15:18:36 +0100 (CET) Received: from localhost.localdomain (aaubervilliers-681-1-94-205.w90-88.abo.wanadoo.fr [90.88.35.205]) by mail.bootlin.com (Postfix) with ESMTPSA id 5197020741; Fri, 23 Nov 2018 15:18:36 +0100 (CET) From: Miquel Raynal To: Gregory Clement , Jason Cooper , Andrew Lunn , Sebastian Hesselbarth , Thomas Petazzoni , Bjorn Helgaas Cc: , Rob Herring , Mark Rutland , Lorenzo Pieralisi , linux-pci@vger.kernel.org, , , Antoine Tenart , Maxime Chevallier , Nadav Haklai , Miquel Raynal Subject: [PATCH 06/12] dt-bindings: PCI: aardvark: describe the reset-gpios property Date: Fri, 23 Nov 2018 15:18:25 +0100 Message-Id: <20181123141831.8214-7-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181123141831.8214-1-miquel.raynal@bootlin.com> References: <20181123141831.8214-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 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 A GPIO might be used to reset the PCI IP. Describe the property needed in this case. Signed-off-by: Miquel Raynal Reviewed-by: Rob Herring --- Documentation/devicetree/bindings/pci/aardvark-pci.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/aardvark-pci.txt b/Documentation/devicetree/bindings/pci/aardvark-pci.txt index 310ef7145c47..252934237138 100644 --- a/Documentation/devicetree/bindings/pci/aardvark-pci.txt +++ b/Documentation/devicetree/bindings/pci/aardvark-pci.txt @@ -20,6 +20,10 @@ contain the following properties: define the mapping of the PCIe interface to interrupt numbers. - bus-range: PCI bus numbers covered +The following are optional properties: + + - reset-gpios: GPIO to reset the device + In addition, the Device Tree describing an Aardvark PCIe controller must include a sub-node that describes the legacy interrupt controller built into the PCIe controller. This sub-node must have the following @@ -48,6 +52,7 @@ Example: <0 0 0 2 &pcie_intc 1>, <0 0 0 3 &pcie_intc 2>, <0 0 0 4 &pcie_intc 3>; + reset-gpios = <&gpiosb 3 GPIO_ACTIVE_HIGH>; pcie_intc: interrupt-controller { interrupt-controller; #interrupt-cells = <1>;