Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 53 insertions, 63 deletions

diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 3274ac8f120..d7d9c0ec951 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -46,7 +46,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/ioport.h>
 #include <linux/io.h>
-#include <linux/module.h>
+#include <linux/of.h>
 
 #include "core.h"
 #include "io.h"
@@ -197,91 +197,99 @@ static irqreturn_t dwc3_omap_interrupt(int irq, void *_omap)
 static int __devinit dwc3_omap_probe(struct platform_device *pdev)
 {
 	struct dwc3_omap_data	*pdata = pdev->dev.platform_data;
+	struct device_node	*node = pdev->dev.of_node;
+
 	struct platform_device	*dwc3;
 	struct dwc3_omap	*omap;
 	struct resource		*res;
+	struct device		*dev = &pdev->dev;
 
 	int			devid;
+	int			size;
 	int			ret = -ENOMEM;
 	int			irq;
 
+	const u32		*utmi_mode;
 	u32			reg;
 
 	void __iomem		*base;
 	void			*context;
 
-	omap = kzalloc(sizeof(*omap), GFP_KERNEL);
+	omap = devm_kzalloc(dev, sizeof(*omap), GFP_KERNEL);
 	if (!omap) {
-		dev_err(&pdev->dev, "not enough memory\n");
-		goto err0;
+		dev_err(dev, "not enough memory\n");
+		return -ENOMEM;
 	}
 
 	platform_set_drvdata(pdev, omap);
 
 	irq = platform_get_irq(pdev, 1);
 	if (irq < 0) {
-		dev_err(&pdev->dev, "missing IRQ resource\n");
-		ret = -EINVAL;
-		goto err1;
+		dev_err(dev, "missing IRQ resource\n");
+		return -EINVAL;
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 	if (!res) {
-		dev_err(&pdev->dev, "missing memory base resource\n");
-		ret = -EINVAL;
-		goto err1;
+		dev_err(dev, "missing memory base resource\n");
+		return -EINVAL;
 	}
 
-	base = ioremap_nocache(res->start, resource_size(res));
+	base = devm_ioremap_nocache(dev, res->start, resource_size(res));
 	if (!base) {
-		dev_err(&pdev->dev, "ioremap failed\n");
-		goto err1;
+		dev_err(dev, "ioremap failed\n");
+		return -ENOMEM;
 	}
 
 	devid = dwc3_get_device_id();
 	if (devid < 0)
-		goto err2;
+		return -ENODEV;
 
 	dwc3 = platform_device_alloc("dwc3", devid);
 	if (!dwc3) {
-		dev_err(&pdev->dev, "couldn't allocate dwc3 device\n");
-		goto err3;
+		dev_err(dev, "couldn't allocate dwc3 device\n");
+		goto err1;
 	}
 
-	context = kzalloc(resource_size(res), GFP_KERNEL);
+	context = devm_kzalloc(dev, resource_size(res), GFP_KERNEL);
 	if (!context) {
-		dev_err(&pdev->dev, "couldn't allocate dwc3 context memory\n");
-		goto err4;
+		dev_err(dev, "couldn't allocate dwc3 context memory\n");
+		goto err2;
 	}
 
 	spin_lock_init(&omap->lock);
-	dma_set_coherent_mask(&dwc3->dev, pdev->dev.coherent_dma_mask);
+	dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask);
 
-	dwc3->dev.parent = &pdev->dev;
-	dwc3->dev.dma_mask = pdev->dev.dma_mask;
-	dwc3->dev.dma_parms = pdev->dev.dma_parms;
+	dwc3->dev.parent = dev;
+	dwc3->dev.dma_mask = dev->dma_mask;
+	dwc3->dev.dma_parms = dev->dma_parms;
 	omap->resource_size = resource_size(res);
 	omap->context	= context;
-	omap->dev	= &pdev->dev;
+	omap->dev	= dev;
 	omap->irq	= irq;
 	omap->base	= base;
 	omap->dwc3	= dwc3;
 
 	reg = dwc3_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS);
 
-	if (!pdata) {
-		dev_dbg(&pdev->dev, "missing platform data\n");
+	utmi_mode = of_get_property(node, "utmi-mode", &size);
+	if (utmi_mode && size == sizeof(*utmi_mode)) {
+		reg |= *utmi_mode;
 	} else {
-		switch (pdata->utmi_mode) {
-		case DWC3_OMAP_UTMI_MODE_SW:
-			reg |= USBOTGSS_UTMI_OTG_STATUS_SW_MODE;
-			break;
-		case DWC3_OMAP_UTMI_MODE_HW:
-			reg &= ~USBOTGSS_UTMI_OTG_STATUS_SW_MODE;
-			break;
-		default:
-			dev_dbg(&pdev->dev, "UNKNOWN utmi mode %d\n",
-					pdata->utmi_mode);
+		if (!pdata) {
+			dev_dbg(dev, "missing platform data\n");
+		} else {
+			switch (pdata->utmi_mode) {
+			case DWC3_OMAP_UTMI_MODE_SW:
+				reg |= USBOTGSS_UTMI_OTG_STATUS_SW_MODE;
+				break;
+			case DWC3_OMAP_UTMI_MODE_HW:
+				reg &= ~USBOTGSS_UTMI_OTG_STATUS_SW_MODE;
+				break;
+			default:
+				dev_dbg(dev, "UNKNOWN utmi mode %d\n",
+						pdata->utmi_mode);
+			}
 		}
 	}
 
@@ -300,12 +308,12 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
 
 	dwc3_writel(omap->base, USBOTGSS_SYSCONFIG, reg);
 
-	ret = request_irq(omap->irq, dwc3_omap_interrupt, 0,
+	ret = devm_request_irq(dev, omap->irq, dwc3_omap_interrupt, 0,
 			"dwc3-omap", omap);
 	if (ret) {
-		dev_err(&pdev->dev, "failed to request IRQ #%d --> %d\n",
+		dev_err(dev, "failed to request IRQ #%d --> %d\n",
 				omap->irq, ret);
-		goto err5;
+		goto err2;
 	}
 
 	/* enable all IRQs */
@@ -327,37 +335,24 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
 	ret = platform_device_add_resources(dwc3, pdev->resource,
 			pdev->num_resources);
 	if (ret) {
-		dev_err(&pdev->dev, "couldn't add resources to dwc3 device\n");
-		goto err6;
+		dev_err(dev, "couldn't add resources to dwc3 device\n");
+		goto err2;
 	}
 
 	ret = platform_device_add(dwc3);
 	if (ret) {
-		dev_err(&pdev->dev, "failed to register dwc3 device\n");
-		goto err6;
+		dev_err(dev, "failed to register dwc3 device\n");
+		goto err2;
 	}
 
 	return 0;
 
-err6:
-	free_irq(omap->irq, omap);
-
-err5:
-	kfree(omap->context);
-
-err4:
-	platform_device_put(dwc3);
-
-err3:
-	dwc3_put_device_id(devid);
-
 err2:
-	iounmap(base);
+	platform_device_put(dwc3);
 
 err1:
-	kfree(omap);
+	dwc3_put_device_id(devid);
 
-err0:
 	return ret;
 }
 
@@ -368,11 +363,6 @@ static int __devexit dwc3_omap_remove(struct platform_device *pdev)
 	platform_device_unregister(omap->dwc3);
 
 	dwc3_put_device_id(omap->dwc3->id);
-	free_irq(omap->irq, omap);
-	iounmap(omap->base);
-
-	kfree(omap->context);
-	kfree(omap);
 
 	return 0;
 }