Use devm_ioremap_resource for replace request region and ioremap.
Signed-off-by: Beomho Seo <beomho.seo@xxxxxxxxxxx>
Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
---
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 e2065a4..3e6c25c 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -157,18 +157,10 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
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;
}
/*
@@ -182,10 +174,6 @@ 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);
@@ -195,10 +183,7 @@ 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);
-- 1.7.9.5
--
Best Regards,
Beomho Seo, Assistant Engineer
System S/W Lab., Software Center, Samsung Electronics
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