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path: root/patches.tizen/1035-mmc-sdhci-pltfm-Use-devm_ioremap_resource.patch
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From 76d2df2a41da7fee04cc8a512758e03813420480 Mon Sep 17 00:00:00 2001
From: Beomho Seo <beomho.seo@samsung.com>
Date: Tue, 3 Dec 2013 17:25:13 +0900
Subject: [PATCH 1035/1302] mmc: sdhci-pltfm: Use devm_ioremap_resource()

This patch devm_ioremap_resource for replace request region and ioremap.

Change-Id: I6b63e1db0d0c9d6d8cf89a93d57db0b253418e3a
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
---
 drivers/mmc/host/sdhci-pltfm.c | 23 ++++-------------------
 1 file changed, 4 insertions(+), 19 deletions(-)

diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index cd0f1f6..be90c47 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -154,18 +154,10 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
 		host->quirks = pdata->quirks;
 	host->irq = platform_get_irq(pdev, 0);
 
-	if (!request_mem_region(iomem->start, resource_size(iomem),
-		mmc_hostname(host->mmc))) {
-		dev_err(&pdev->dev, "cannot request region\n");
-		ret = -EBUSY;
-		goto err_request;
-	}
-
-	host->ioaddr = ioremap(iomem->start, resource_size(iomem));
-	if (!host->ioaddr) {
-		dev_err(&pdev->dev, "failed to remap registers\n");
-		ret = -ENOMEM;
-		goto err_remap;
+	host->ioaddr = devm_ioremap_resource(&pdev->dev, iomem);
+	if (IS_ERR(host->ioaddr)) {
+		ret = PTR_ERR(host->ioaddr);
+		goto err;
 	}
 
 	/*
@@ -179,10 +171,6 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
 
 	return host;
 
-err_remap:
-	release_mem_region(iomem->start, resource_size(iomem));
-err_request:
-	sdhci_free_host(host);
 err:
 	dev_err(&pdev->dev, "%s failed %d\n", __func__, ret);
 	return ERR_PTR(ret);
@@ -192,10 +180,7 @@ EXPORT_SYMBOL_GPL(sdhci_pltfm_init);
 void sdhci_pltfm_free(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
-	struct resource *iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	iounmap(host->ioaddr);
-	release_mem_region(iomem->start, resource_size(iomem));
 	sdhci_free_host(host);
 	platform_set_drvdata(pdev, NULL);
 }
-- 
1.8.3.2