From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753878Ab2GQKtZ (ORCPT ); Tue, 17 Jul 2012 06:49:25 -0400 Received: from mailout1.samsung.com ([203.254.224.24]:33149 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753347Ab2GQKtF (ORCPT ); Tue, 17 Jul 2012 06:49:05 -0400 X-AuditID: cbfee61a-b7f616d000004b7e-35-500543208431 From: Vivek Gautam To: greg@kroah.com, 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, olofj@google.com, thomas.abraham@linaro.org, sshtylyov@mvista.com, jy0922.shim@samsung.com, jg1.han@samsung.com Subject: [PATCH RESEND v4] USB: ehci-s5p: Add vbus setup function to the s5p ehci glue layer Date: Tue, 17 Jul 2012 16:33:26 +0530 Message-id: <1342523006-8379-2-git-send-email-gautam.vivek@samsung.com> X-Mailer: git-send-email 1.7.0.4 In-reply-to: <1342523006-8379-1-git-send-email-gautam.vivek@samsung.com> References: <1342523006-8379-1-git-send-email-gautam.vivek@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrGJMWRmVeSWpSXmKPExsVy+t9jAV0FZ9YAg3ctmhaXd81hs1i0rJXZ gcnj8ya5AMYoLpuU1JzMstQifbsErowp02ewFTzkrVh/1bOB8SR3FyMnh4SAicTPZx8ZIWwx iQv31rN1MXJxCAksYpTY1HaJFcJpZ5K4+GMNK0gVm4CuRNPbXWAdIgK9jBInur1BipgFXjFK zPvYA1YkLBAncerpfxYQm0VAVeLc3XfsIDavgLvEw9YOFoh1ChKtyw6BxTkFPCR2XLkNZHMA bXOX+POQcQIj7wJGhlWMoqkFyQXFSem5hnrFibnFpXnpesn5uZsYwb5/JrWDcWWDxSFGAQ5G JR7eBeasAUKsiWXFlbmHGCU4mJVEeFebAIV4UxIrq1KL8uOLSnNSiw8xSnOwKInzGnt/9RcS SE8sSc1OTS1ILYLJMnFwSjUwHtMwkpDZx/LH8u3qZLml15Yu0nX/ZeY9SZch3exYROy651d5 75wxW68a37NoUqlQu0IIK8NN52W7J4Ss8LopKLgk/YjIzT/Ljqs3yLxW/MDcPNdQlzVq1UOp BM8wpu7np+riebsuZxl1LRB8pfVC/MhiF8mXm6dPmx1g+Tpmt1vGlB3qF1JKlViKMxINtZiL ihMBaMvNSfkBAAA= X-TM-AS-MML: No Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch retrieves and configures the vbus control gpio via the device tree. The suspend/resume callbacks will be later modified for vbus control. Signed-off-by: Abhilash Kesavan Signed-off-by: Vivek Gautam --- drivers/usb/host/ehci-s5p.c | 21 +++++++++++++++++++++ 1 files changed, 21 insertions(+), 0 deletions(-) diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c index 37d84cf..9d8f1dd 100644 --- a/drivers/usb/host/ehci-s5p.c +++ b/drivers/usb/host/ehci-s5p.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -64,6 +65,24 @@ static const struct hc_driver s5p_ehci_hc_driver = { .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, }; +static void s5p_setup_vbus_gpio(struct platform_device *pdev) +{ + int err; + int gpio; + + if (!pdev->dev.of_node) + return; + + gpio = of_get_named_gpio(pdev->dev.of_node, + "samsung,vbus-gpio", 0); + if (!gpio_is_valid(gpio)) + return; + + err = gpio_request_one(gpio, GPIOF_OUT_INIT_HIGH, "ehci_vbus_gpio"); + if (err) + dev_err(&pdev->dev, "can't request ehci vbus gpio %d", gpio); +} + static u64 ehci_s5p_dma_mask = DMA_BIT_MASK(32); static int __devinit s5p_ehci_probe(struct platform_device *pdev) @@ -92,6 +111,8 @@ static int __devinit s5p_ehci_probe(struct platform_device *pdev) if (!pdev->dev.coherent_dma_mask) pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + s5p_setup_vbus_gpio(pdev); + s5p_ehci = devm_kzalloc(&pdev->dev, sizeof(struct s5p_ehci_hcd), GFP_KERNEL); if (!s5p_ehci) -- 1.7.0.4