[PATCH 2/4] pinmux: add a driver for the U300 pinmux

On Mon, May 02, 2011 at 09:16:38PM +0200, Linus Walleij wrote:
[]

+
+static int __init u300_pmx_probe(struct platform_device *pdev)
+{

[]

+	upmx->phybase = res->start;
+	upmx->physize = resource_size(res);
+
+	if (request_mem_region(upmx->phybase, upmx->physize,
+			       DRIVER_NAME) == NULL) {
+		ret = -EBUSY;
+		goto out_no_memregion;
+	}
+
+	upmx->virtbase = ioremap(upmx->phybase, upmx->physize);
+	if (!upmx->virtbase) {
+		ret = -ENOMEM;
+		goto out_no_remap;
+	}
+
+	upmx->pmx = pinmux_register(&u300_pmx_desc, &pdev->dev, upmx);
+	if (IS_ERR(upmx->pmx)) {
+		ret = PTR_ERR(upmx->pmx);
+		goto out_no_pmx;
+	}
+	platform_set_drvdata(pdev, upmx);
+
+	dev_info(&pdev->dev, "initialized U300 pinmux driver\n");
+
+	return 0;
+
+out_no_pmx:
+	iounmap(upmx->virtbase);
+out_no_remap:
+	platform_set_drvdata(pdev, NULL);
+out_no_memregion:
+	release_mem_region(upmx->phybase, SZ_4K);

release_mem_region(upmx->phybase, upmx->physize); ?

-- 
                           joshc