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authorThomas Abraham <thomas.abraham@linaro.org>2012-02-16 14:23:59 +0100
committerChris Ball <cjb@laptop.org>2012-04-06 01:58:01 +0200
commit1d4dc338bb7cbbadcb5a527b1b0e897b5cde1701 (patch)
treefc4eab669f7092f1b0f72b84a2ec2ad17979889f /drivers/mmc/host/sdhci-s3c.c
parentmmc: sdhci-s3c: derive transfer width host cap from max_width in platdata (diff)
downloadlinux-1d4dc338bb7cbbadcb5a527b1b0e897b5cde1701.tar.xz
linux-1d4dc338bb7cbbadcb5a527b1b0e897b5cde1701.zip
mmc: sdhci-s3c: Keep a copy of platform data and use it
The platform data is copied into driver's private data and the copy is used for all access to the platform data. This simpifies the addition of device tree support for the sdhci-s3c driver. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/sdhci-s3c.c')
-rw-r--r--drivers/mmc/host/sdhci-s3c.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index dab1a770cb8a..e81a0339ab5c 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -424,7 +424,7 @@ static inline struct sdhci_s3c_drv_data *sdhci_s3c_get_driver_data(
static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
{
- struct s3c_sdhci_platdata *pdata = pdev->dev.platform_data;
+ struct s3c_sdhci_platdata *pdata;
struct sdhci_s3c_drv_data *drv_data;
struct device *dev = &pdev->dev;
struct sdhci_host *host;
@@ -432,7 +432,7 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
struct resource *res;
int ret, irq, ptr, clks;
- if (!pdata) {
+ if (!pdev->dev.platform_data) {
dev_err(dev, "no device data specified\n");
return -ENOENT;
}
@@ -455,6 +455,13 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
return PTR_ERR(host);
}
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata) {
+ ret = -ENOMEM;
+ goto err_io_clk;
+ }
+ memcpy(pdata, pdev->dev.platform_data, sizeof(*pdata));
+
drv_data = sdhci_s3c_get_driver_data(pdev);
sc = sdhci_priv(host);