From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754391Ab2GLFmW (ORCPT ); Thu, 12 Jul 2012 01:42:22 -0400 Received: from mailout2.samsung.com ([203.254.224.25]:37136 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752395Ab2GLFlP (ORCPT ); Thu, 12 Jul 2012 01:41:15 -0400 X-AuditID: cbfee61a-b7f616d000004b7e-e5-4ffe637a9365 From: Vivek Gautam To: stern@rowland.harvard.edu, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree-discuss@lists.ozlabs.org Cc: l.majewski@samsung.com, a.kesavan@samsung.com, prashanth.g@samsung.com, kmpark@infradead.org, joshi@samsung.com, jg1.han@samsung.com, jy0922.shim@samsung.com, sshtylyov@mvista.com, olofj@google.com Subject: [PATCH 1/3 v2] USB: ohci-exynos: Add support for device tree Date: Thu, 12 Jul 2012 11:25:10 +0530 Message-id: <1342072512-29945-2-git-send-email-gautam.vivek@samsung.com> X-Mailer: git-send-email 1.7.0.4 In-reply-to: <1342072512-29945-1-git-send-email-gautam.vivek@samsung.com> References: <1342072512-29945-1-git-send-email-gautam.vivek@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrOJMWRmVeSWpSXmKPExsVy+t9jQd2q5H/+Bt1rJC0u75rDZrFoWSuz A5PH501yAYxRXDYpqTmZZalF+nYJXBldXz0KlgtWXN65n6mBcRVfFyMnh4SAicSBnT8YIWwx iQv31rN1MXJxCAlMZ5S4+P8UE4TTziRx8vsiNpAqNgFdiaa3u8A6RARqJaZcncoOUsQscJZR omXuJBaQhLCAq0TbrzdgNouAqkT3o8VgzbwCHhIPJu1hg1inING67BA7iM0p4Cmx6uYssKFC QDVTt59nnMDIu4CRYRWjaGpBckFxUnquoV5xYm5xaV66XnJ+7iZGsPefSe1gXNlgcYhRgINR iYf3YuQ/fyHWxLLiytxDjBIczEoivI4gId6UxMqq1KL8+KLSnNTiQ4zSHCxK4rzG3l/9hQTS E0tSs1NTC1KLYLJMHJxSDYwMzwUFjjhE2yYvnnj13V6pWX/8f8keS07Xiu64+XhVqcyD3foz WM+cv8KhVMT2rrtsctJOhYsB2+7MmLusKG2Zb2v0SeOlL9kkLYI3Fbbqh21d4cX+VnXlPd9i vc13Z86Rd/Y2Wd1levy8ywbBxKCFWbVCS1nXJiWtlOWVtHOdlfTRZVm+loYSS3FGoqEWc1Fx IgDwKelv+gEAAA== X-TM-AS-MML: No Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds support to parse probe data for ohci driver for exynos using device tree. Signed-off-by: Thomas Abraham Signed-off-by: Abhilash Kesavan Signed-off-by: Vivek Gautam diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index 2909621..c4ad60f 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -12,6 +12,7 @@ */ #include +#include #include #include #include @@ -71,6 +72,8 @@ static const struct hc_driver exynos_ohci_hc_driver = { .start_port_reset = ohci_start_port_reset, }; +static u64 ohci_exynos_dma_mask = DMA_BIT_MASK(32); + static int __devinit exynos_ohci_probe(struct platform_device *pdev) { struct exynos4_ohci_platdata *pdata; @@ -87,6 +90,16 @@ static int __devinit exynos_ohci_probe(struct platform_device *pdev) return -EINVAL; } + /* + * Right now device-tree probed devices don't get dma_mask set. + * Since shared usb code relies on it, set it here for now. + * Once we move to full device tree support this will vanish off. + */ + if (!pdev->dev.dma_mask) + pdev->dev.dma_mask = &ohci_exynos_dma_mask; + if (!pdev->dev.coherent_dma_mask) + pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + exynos_ohci = kzalloc(sizeof(struct exynos_ohci_hcd), GFP_KERNEL); if (!exynos_ohci) return -ENOMEM; @@ -258,6 +271,14 @@ static const struct dev_pm_ops exynos_ohci_pm_ops = { .resume = exynos_ohci_resume, }; +#ifdef CONFIG_OF +static const struct of_device_id exynos_ohci_match[] = { + { .compatible = "samsung,exynos-ohci" }, + {}, +}; +MODULE_DEVICE_TABLE(of, exynos_ohci_match); +#endif + static struct platform_driver exynos_ohci_driver = { .probe = exynos_ohci_probe, .remove = __devexit_p(exynos_ohci_remove), @@ -266,6 +287,7 @@ static struct platform_driver exynos_ohci_driver = { .name = "exynos-ohci", .owner = THIS_MODULE, .pm = &exynos_ohci_pm_ops, + .of_match_table = of_match_ptr(exynos_ohci_match), } }; -- 1.7.0.4