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: 293735 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 0684B2C00B9 for ; Sun, 24 Nov 2013 18:38:07 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754605Ab3KXHiF (ORCPT ); Sun, 24 Nov 2013 02:38:05 -0500 Received: from mail-pd0-f173.google.com ([209.85.192.173]:61556 "EHLO mail-pd0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753450Ab3KXHiE (ORCPT ); Sun, 24 Nov 2013 02:38:04 -0500 Received: by mail-pd0-f173.google.com with SMTP id p10so3530828pdj.32 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 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: [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 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org 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 -- 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/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");