From patchwork Tue Feb 27 11:29:10 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roger Quadros X-Patchwork-Id: 129774 Delivered-To: patch@linaro.org Received: by 10.46.66.2 with SMTP id p2csp1278793lja; Tue, 27 Feb 2018 03:29:24 -0800 (PST) X-Google-Smtp-Source: AH8x224UlTQNn7yAmR5NE/qDB32ItCpSkxoW42RnpL3pKpcn+88JvJqDxUDVBIvsKA+RmFvcTCLy X-Received: by 10.99.152.70 with SMTP id l6mr10710582pgo.87.1519730964370; Tue, 27 Feb 2018 03:29:24 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1519730964; cv=none; d=google.com; s=arc-20160816; b=bsQiMOIb4BthoFjOmUdB4C+Sl2ew5HVHzUu5ukOLYWg7t46SSpx92IQdbC/ohKrFrt LXuHMyy4IYOrdKsizqBjLXtV7lhdnuA7/XGrHuEBAwXafTxuEXVcfZzfaox4I2dqUxqM MR4yVL3t7OoWCk63QhF7w3nOpQPK8De/X0jpWPagXMDqfiQHPscf6F/eDh1SaH8EeQR3 7ECS8amKlEAa1Xc7hJK0rYg9zrqyZRc/IqJLEGfnWG79ihJdfrFR9qaHK8Erabzr+SY+ rvNPvqQVF2EoGzWqAMLWIRr5931j8FFal4/orrt6DM4p2yMa9seDwNMb4goTr63DPX0c NomA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:message-id:date:subject:cc :to:from:dkim-signature:arc-authentication-results; bh=KeorNaYDAQ4tVNnFgS5VyS4N5bC7hvPUTTnOWZW3yK0=; b=Z/BEVXpEdvbybOWghoJZuWBXqGb8mk6rfnvFq9yMGH6nmVATQmdq23D02wkwfiC1OA 8lgWbmzDL7oMDOXnjPFgemal/v2GWYjb23MsJxzB1A8EYJ8BfmXlQwexDjVzxTnwQZBN Se6ROCZsLtttDBeXQGCgRUnrrNaZUgS/w1RqSDBevB8uKzdqb+RAuzQLKjDbZkYpfp4G cph/uTFSPStgEr8Zo+CvZuEmVlR4T0u8JfN3KE0CsmmigWgDJhel/rX6m9h+/+U5J/D/ fC6c6l6PrN9Y/rppajosnqZetgY69W7UXPLZi6vBb0a9nAldoCg6ZVZ7WnxjIRn6/D0c F7pQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=AWjg9Wmr; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id a31-v6si8535063pla.427.2018.02.27.03.29.24; Tue, 27 Feb 2018 03:29:24 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=AWjg9Wmr; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753019AbeB0L3T (ORCPT + 28 others); Tue, 27 Feb 2018 06:29:19 -0500 Received: from fllnx209.ext.ti.com ([198.47.19.16]:10556 "EHLO fllnx209.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752130AbeB0L3R (ORCPT ); Tue, 27 Feb 2018 06:29:17 -0500 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by fllnx209.ext.ti.com (8.15.1/8.15.1) with ESMTP id w1RBTG17002349; Tue, 27 Feb 2018 05:29:16 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ti.com; s=ti-com-17Q1; t=1519730956; bh=kBmWeZeTqpdKAfNahAH8GA0ttFSa3fPHqOnGXZaIto0=; h=From:To:CC:Subject:Date; b=AWjg9Wmr/gr7NLbxjwLnEUdmRokh/J2G+/Vrs8fXUJaLCBWiloiMvsh2/qHFTVc/G 8OXE/Dql5GNOM4w0mSn+B5L/JqZejDOhkywWqDSLcbehxqua0dqe6GYV8+KLcZvP01 gqJ+f739p5zoH8jl/NbbOfUOL0HW4R4VH369rknM= Received: from DLEE109.ent.ti.com (dlee109.ent.ti.com [157.170.170.41]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id w1RBTGUL023705; Tue, 27 Feb 2018 05:29:16 -0600 Received: from DLEE104.ent.ti.com (157.170.170.34) by DLEE109.ent.ti.com (157.170.170.41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1261.35; Tue, 27 Feb 2018 05:29:15 -0600 Received: from dlep32.itg.ti.com (157.170.170.100) by DLEE104.ent.ti.com (157.170.170.34) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1261.35 via Frontend Transport; Tue, 27 Feb 2018 05:29:15 -0600 Received: from dlelxv97.itg.ti.com (dlelxv97.itg.ti.com [172.17.2.193]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id w1RBTFFf027752; Tue, 27 Feb 2018 05:29:15 -0600 Received: from lta0400828d.ti.com (vboxa0400828d.emea.dhcp.ti.com [172.22.233.227]) by dlelxv97.itg.ti.com (8.14.3/8.13.8) with ESMTP id w1RBTDxk022541; Tue, 27 Feb 2018 05:29:14 -0600 From: Roger Quadros To: CC: , , Roger Quadros Subject: [PATCH v2 0/2] usb: dwc3: Add dual-role support using OTG core Date: Tue, 27 Feb 2018 13:29:10 +0200 Message-ID: <1519730952-2102-1-git-send-email-rogerq@ti.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Felipe, Some platforms (e.g. TI's AM437x) don't have USB ID pin state available over GPIO/extcon but need to rely on the DWC3 core's OTG block to get the ID pin state instead. This series implements simple dual-role functionality using DWC3's OTG block. Debugfs 'mode' override is also functional so user can switch between "otg", "host" or "device" modes for debug. Although system suspend/resume isn't working yet in mainline for AM437x, I've tested this series for system suspend/resume using a local tree. Roger Quadros (2): usb: dwc3: core.h: add some register definitions usb: dwc3: add dual role support using OTG block drivers/usb/dwc3/core.c | 67 ++++++- drivers/usb/dwc3/core.h | 111 +++++++++++ drivers/usb/dwc3/drd.c | 489 ++++++++++++++++++++++++++++++++++++++++++++++-- 3 files changed, 639 insertions(+), 28 deletions(-) -- cheers, -roger Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki