Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753639Ab2JON2u (ORCPT ); Mon, 15 Oct 2012 09:28:50 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:43792 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753463Ab2JON2o (ORCPT ); Mon, 15 Oct 2012 09:28:44 -0400 From: Kishon Vijay Abraham I To: , , , , , , , , , , CC: Subject: [PATCH v4 3/7] usb: dwc3-omap: use runtime API's to enable clocks Date: Mon, 15 Oct 2012 18:57:56 +0530 Message-ID: <1350307680-24938-4-git-send-email-kishon@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1350307680-24938-1-git-send-email-kishon@ti.com> References: <1350307680-24938-1-git-send-email-kishon@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1707 Lines: 53 Before accessing any register, runtime API's should be invoked to enable the clocks. runtime API's are added here to prevent abort during register access. Signed-off-by: Kishon Vijay Abraham I --- drivers/usb/dwc3/dwc3-omap.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index 4aaeec4..1fdf7e2 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -43,6 +43,7 @@ #include #include #include +#include #include #include #include @@ -336,6 +337,13 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev) omap->irq = irq; omap->base = base; + pm_runtime_enable(dev); + ret = pm_runtime_get_sync(dev); + if (ret < 0) { + dev_err(dev, "get_sync failed with err %d\n", ret); + return ret; + } + reg = dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS); utmi_mode = of_get_property(node, "utmi-mode", &size); @@ -417,6 +425,9 @@ static int __devexit dwc3_omap_remove(struct platform_device *pdev) platform_device_unregister(omap->usb2_phy); platform_device_unregister(omap->usb3_phy); + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); + device_for_each_child(&pdev->dev, NULL, dwc3_omap_remove_core); return 0; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/