From patchwork Sat Nov 23 06:04:16 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Tang X-Patchwork-Id: 293625 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 9296A2C011F for ; Sat, 23 Nov 2013 17:05:45 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750838Ab3KWGFD (ORCPT ); Sat, 23 Nov 2013 01:05:03 -0500 Received: from mail-pb0-f43.google.com ([209.85.160.43]:46420 "EHLO mail-pb0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750800Ab3KWGFB (ORCPT ); Sat, 23 Nov 2013 01:05:01 -0500 Received: by mail-pb0-f43.google.com with SMTP id rq2so2342618pbb.30 for ; Fri, 22 Nov 2013 22:05:00 -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=Vrqv78fwKKVBofpovvP4anWB6JhjnKm8RjsBbRbYtzk=; b=QwUlArBnqRxzadDF9yIH4Y1py7QxGDVOb/yVljlFzI8292NzaaefDH7q/auY4AYNbd Onx/tRaVmanUNo5Ddw0WWj7qD70mbeSjYz8zd7xCELPIPMQ1J5mGbnr/gpSXtXulXl7g 0BZzb4OM9hn5YsIMMofVXkHP5/lh83Sm05S5cFEmtX2a2HJldg2OHAwU95kBv34JQDJa yNxSZtWO5Pt8eEjQundEI/h74uTc4zUuLiH1g/6OjaodXyBZewOn7kae7wt7UBUgmZ1U qHPPAusz/HklR8nK9O9uFW68BDqWVicrii9XHH9mdiaWW3cdG4zR5CYyvgYS/1YlqhFW 2ZNQ== X-Received: by 10.66.158.99 with SMTP id wt3mr15667681pab.113.1385186700563; Fri, 22 Nov 2013 22:05:00 -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 iu7sm57556729pbc.45.2013.11.22.22.04.55 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 22 Nov 2013 22:04:59 -0800 (PST) From: dt.tangr@gmail.com To: linux-usb@vger.kernel.org Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux@arm.linux.org.uk, Daniel Tang Subject: [PATCH] usb: chipidea: add support for USB OTG controller on TI-NSPIRE Date: Sat, 23 Nov 2013 17:04:16 +1100 Message-Id: <5290458b.87c5440a.4c57.ffffc9c8@mx.google.com> X-Mailer: git-send-email 1.8.1.3 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Daniel Tang 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/ci13xxx-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/ci13xxx-nspire.txt create mode 100644 drivers/usb/chipidea/ci_hdrc_nspire.c -- 1.8.1.3 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/Documentation/devicetree/bindings/usb/ci13xxx-nspire.txt b/Documentation/devicetree/bindings/usb/ci13xxx-nspire.txt new file mode 100644 index 0000000..5ba8e90 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/ci13xxx-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..318761d --- /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:ci13xxx_nspire"); +MODULE_LICENSE("GPL v2");