From patchwork Sun Nov 24 07:37:47 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Tang X-Patchwork-Id: 3226541 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 58A9A9F3A0 for ; Sun, 24 Nov 2013 07:38:57 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 66A1920614 for ; Sun, 24 Nov 2013 07:38:56 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5860520610 for ; Sun, 24 Nov 2013 07:38:55 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VkUH4-0005le-Ma; Sun, 24 Nov 2013 07:38:34 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1VkUH2-0006Nd-Do; Sun, 24 Nov 2013 07:38:32 +0000 Received: from mail-pd0-x22d.google.com ([2607:f8b0:400e:c02::22d]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VkUGy-0006MR-1n for linux-arm-kernel@lists.infradead.org; Sun, 24 Nov 2013 07:38:29 +0000 Received: by mail-pd0-f173.google.com with SMTP id p10so3522883pdj.4 for ; Sat, 23 Nov 2013 23:38:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id; bh=I0RQm7LBI3UlBWrQjqZjuoFVh5qttslKelzZ2L7C+d8=; b=Sc08qnY5aa/Zn1gqOc2SfCcSmBqKEGrM1dx0Q7BQsonUohFPWXZCv7XkvEJjwXNpIu ekWwwqt3nMsBunzRkY4D0Bz9nqFwBA27d+7ybm5yT/Rd46R8RW2prg4zIrBCZuD2azCY CJLtwDiNPDaJKtsp9H5vSKv2u5Yu2ucSdUVGfM0PhYMso64cefUqo7VT+ggEXpqR3Cm8 JRJsWR8UMqBpSydaYSG2HJZHXav9DvkLrpZYcrKD5UCQ032Py9tHinGeVmxtgurbst9O oeGyhvY9G3B7j7A/dsnyfGic6xkP58enwW5uKauq2oQWC84eU/k1s/OUAKwYH7BaVRjd uHFw== X-Received: by 10.66.248.227 with SMTP id yp3mr1471583pac.116.1385278682737; Sat, 23 Nov 2013 23:38:02 -0800 (PST) Received: from tangrs.lan (110-175-69-66.static.tpgi.com.au. [110.175.69.66]) by mx.google.com with ESMTPSA id qf7sm73217520pac.14.2013.11.23.23.37.56 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 23 Nov 2013 23:38:01 -0800 (PST) From: dt.tangr@gmail.com To: linux-usb@vger.kernel.org Subject: [PATCHv2] usb: chipidea: add support for USB OTG controller on TI-NSPIRE Date: Sun, 24 Nov 2013 18:37:47 +1100 Message-Id: <1385278667-91856-1-git-send-email-dt.tangr@gmail.com> X-Mailer: git-send-email 1.8.1.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20131124_023828_177500_69DDF136 X-CRM114-Status: GOOD ( 16.39 ) X-Spam-Score: -2.0 (--) Cc: devicetree@vger.kernel.org, linux@arm.linux.org.uk, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Daniel Tang , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Daniel Tang Changelog v2: * Rename ci13xxx to ci_hdrc * Fixed alignment issues The USB controller in TI-NSPIRE calculators are based off either Freescale's USB OTG controller or the USB controller found in the IMX233, both of which are Chipidea compatible. This patch adds a device tree binding for the controller. Signed-off-by: Daniel Tang --- .../devicetree/bindings/usb/ci-hdrc-nspire.txt | 17 +++++ drivers/usb/chipidea/Makefile | 1 + drivers/usb/chipidea/ci_hdrc_nspire.c | 74 ++++++++++++++++++++++ 3 files changed, 92 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/ci-hdrc-nspire.txt create mode 100644 drivers/usb/chipidea/ci_hdrc_nspire.c -- 1.8.1.3 diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-nspire.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-nspire.txt new file mode 100644 index 0000000..5ba8e90 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-nspire.txt @@ -0,0 +1,17 @@ +* TI-Nspire USB OTG Controller + +Required properties: +- compatible: Should be "zevio,nspire-usb" +- reg: Should contain registers location and length +- interrupts: Should contain controller interrupt + +Recommended properies: +- vbus-supply: regulator for vbus + +Examples: + usb0: usb@B0000000 { + reg = <0xB0000000 0x1000>; + compatible = "zevio,nspire-usb"; + interrupts = <8>; + vbus-supply = <&vbus_reg>; + }; diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile index a99d980..245ea4d 100644 --- a/drivers/usb/chipidea/Makefile +++ b/drivers/usb/chipidea/Makefile @@ -10,6 +10,7 @@ ci_hdrc-$(CONFIG_USB_CHIPIDEA_DEBUG) += debug.o # Glue/Bridge layers go here obj-$(CONFIG_USB_CHIPIDEA) += ci_hdrc_msm.o +obj-$(CONFIG_USB_CHIPIDEA) += ci_hdrc_nspire.o # PCI doesn't provide stubs, need to check ifneq ($(CONFIG_PCI),) diff --git a/drivers/usb/chipidea/ci_hdrc_nspire.c b/drivers/usb/chipidea/ci_hdrc_nspire.c new file mode 100644 index 0000000..5d408c3 --- /dev/null +++ b/drivers/usb/chipidea/ci_hdrc_nspire.c @@ -0,0 +1,74 @@ +/* + * Copyright (C) 2013 Daniel Tang + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2, as + * published by the Free Software Foundation. + * + * Based off drivers/usb/chipidea/ci_hdrc_msm.c + * + */ + +#include +#include +#include +#include + +#include "ci.h" + +static struct ci_hdrc_platform_data ci_hdrc_nspire_platdata = { + .name = "ci_hdrc_nspire", + .flags = CI_HDRC_REGS_SHARED, + .capoffset = DEF_CAPOFFSET, +}; + +static int ci_hdrc_nspire_probe(struct platform_device *pdev) +{ + struct platform_device *ci_pdev; + + dev_dbg(&pdev->dev, "ci_hdrc_nspire_probe\n"); + + ci_pdev = ci_hdrc_add_device(&pdev->dev, + pdev->resource, pdev->num_resources, + &ci_hdrc_nspire_platdata); + + if (IS_ERR(ci_pdev)) { + dev_err(&pdev->dev, "ci_hdrc_add_device failed!\n"); + return PTR_ERR(ci_pdev); + } + + platform_set_drvdata(pdev, ci_pdev); + + return 0; +} + +static int ci_hdrc_nspire_remove(struct platform_device *pdev) +{ + struct platform_device *ci_pdev = platform_get_drvdata(pdev); + + ci_hdrc_remove_device(ci_pdev); + + return 0; +} + +static const struct of_device_id ci_hdrc_nspire_dt_ids[] = { + { .compatible = "zevio,nspire-usb", }, + { /* sentinel */ } +}; + +static struct platform_driver ci_hdrc_nspire_driver = { + .probe = ci_hdrc_nspire_probe, + .remove = ci_hdrc_nspire_remove, + .driver = { + .name = "nspire_usb", + .owner = THIS_MODULE, + .of_match_table = ci_hdrc_nspire_dt_ids, + }, +}; + +MODULE_DEVICE_TABLE(of, ci_hdrc_nspire_dt_ids); +module_platform_driver(ci_hdrc_nspire_driver); + +MODULE_ALIAS("platform:nspire_usb"); +MODULE_ALIAS("platform:ci_hdrc_nspire"); +MODULE_LICENSE("GPL v2");