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path: root/drivers/mmc/host/sdhci-pltfm.c
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Diffstat (limited to 'drivers/mmc/host/sdhci-pltfm.c')
-rw-r--r--drivers/mmc/host/sdhci-pltfm.c42
1 files changed, 13 insertions, 29 deletions
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 072bb27a6..64f287a03 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -119,16 +119,22 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
{
struct sdhci_host *host;
struct resource *iomem;
- int ret;
+ void __iomem *ioaddr;
+ int irq, ret;
iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!iomem) {
- ret = -ENOMEM;
+ ioaddr = devm_ioremap_resource(&pdev->dev, iomem);
+ if (IS_ERR(ioaddr)) {
+ ret = PTR_ERR(ioaddr);
goto err;
}
- if (resource_size(iomem) < 0x100)
- dev_err(&pdev->dev, "Invalid iomem size!\n");
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "failed to get IRQ number\n");
+ ret = irq;
+ goto err;
+ }
host = sdhci_alloc_host(&pdev->dev,
sizeof(struct sdhci_pltfm_host) + priv_size);
@@ -138,6 +144,8 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
goto err;
}
+ host->ioaddr = ioaddr;
+ host->irq = irq;
host->hw_name = dev_name(&pdev->dev);
if (pdata && pdata->ops)
host->ops = pdata->ops;
@@ -148,22 +156,6 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
host->quirks2 = pdata->quirks2;
}
- 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;
- }
-
/*
* Some platforms need to probe the controller to be able to
* determine which caps should be used.
@@ -174,11 +166,6 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
platform_set_drvdata(pdev, host);
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);
@@ -188,10 +175,7 @@ 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);
}
EXPORT_SYMBOL_GPL(sdhci_pltfm_free);