lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 28 Sep 2012 18:23:11 +0530 From: Kishon Vijay Abraham I <kishon@...com> To: <grant.likely@...retlab.ca>, <rob.herring@...xeda.com>, <rob@...dley.net>, <kishon@...com>, <linux-usb@...r.kernel.org>, <linux-omap@...r.kernel.org>, <devicetree-discuss@...ts.ozlabs.org>, <linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <gregkh@...uxfoundation.org>, <balbi@...com> Subject: [PATCH 2/6] usb: dwc3-omap: use runtime API's to enable clocks 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 <kishon@...com> --- drivers/usb/dwc3/dwc3-omap.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index 34578de..6a0e17f 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -43,6 +43,7 @@ #include <linux/spinlock.h> #include <linux/platform_device.h> #include <linux/platform_data/dwc3-omap.h> +#include <linux/pm_runtime.h> #include <linux/dma-mapping.h> #include <linux/ioport.h> #include <linux/io.h> @@ -281,6 +282,13 @@ 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); + goto err1; + } + reg = dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS); utmi_mode = of_get_property(node, "utmi-mode", &size); @@ -354,6 +362,8 @@ err1: static int __devexit dwc3_omap_remove(struct platform_device *pdev) { device_for_each_child(&pdev->dev, NULL, dwc3_remove_core); + pm_runtime_put(&pdev->dev); + pm_runtime_disable(&pdev->dev); return 0; } -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists