From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 24D2CC433DF for ; Mon, 8 Jun 2020 19:27:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EE24D20774 for ; Mon, 8 Jun 2020 19:27:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726592AbgFHT1c (ORCPT ); Mon, 8 Jun 2020 15:27:32 -0400 Received: from mx2.suse.de ([195.135.220.15]:39580 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726410AbgFHT1b (ORCPT ); Mon, 8 Jun 2020 15:27:31 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id B0A7CAE71; Mon, 8 Jun 2020 19:27:32 +0000 (UTC) From: Nicolas Saenz Julienne To: f.fainelli@gmail.com, gregkh@linuxfoundation.org, wahrenst@gmx.net, robh@kernel.org, mathias.nyman@linux.intel.com, Eric Anholt , bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-pci@vger.kernel.org, linux-usb@vger.kernel.org, Nicolas Saenz Julienne , Ray Jui , Scott Branden Cc: linux-kernel@vger.kernel.org, tim.gover@raspberrypi.org, helgaas@kernel.org, lorenzo.pieralisi@arm.com, Rob Herring Subject: [PATCH 1/9] dt-bindings: reset: Add a binding for the RPi Firmware USB reset Date: Mon, 8 Jun 2020 21:26:53 +0200 Message-Id: <20200608192701.18355-2-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200608192701.18355-1-nsaenzjulienne@suse.de> References: <20200608192701.18355-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The firmware running on the RPi VideoCore can be used to reset and initialize the board's xHCI controller. The reset controller is passed to the PCI device through the DT, hence this binding. Signed-off-by: Nicolas Saenz Julienne --- .../arm/bcm/raspberrypi,bcm2835-firmware.yaml | 21 +++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml index b48ed875eb8e..8f9d0986c28f 100644 --- a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml +++ b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml @@ -39,6 +39,22 @@ properties: - compatible - "#clock-cells" + usb-reset: + type: object + + properties: + compatible: + const: raspberrypi,firmware-usb-reset + + "#clock-cells": + const: 0 + description: > + There is only one reset line available, so no need for cell decoding. + + required: + - compatible + - "#reset-cells" + additionalProperties: false required: @@ -55,5 +71,10 @@ examples: compatible = "raspberrypi,firmware-clocks"; #clock-cells = <1>; }; + + usb_reset: usb-reset { + compatible = "raspberrypi,firmware-usb-reset"; + #reset-cells = <0>; + }; }; ... -- 2.26.2