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mmc: sdhci-pltfm: Add structure for host-specific data

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We need to carry some information per host, e.g. the clock. Add a
structure for it and initialize it in the generic part. Also improve
the check for a parent.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Richard Röjfors <richard.rojfors.ext@mocean-labs.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Wolfram Sang 2010-10-15 12:20:59 +02:00 committed by Chris Ball
parent 9ffca8300a
commit 4b711cb138
2 changed files with 14 additions and 3 deletions
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10
drivers/mmc/host/sdhci-pltfm.c
View File

@ -55,6 +55,7 @@ static int __devinit sdhci_pltfm_probe(struct platform_device *pdev)
struct sdhci_pltfm_data *pdata = pdev->dev.platform_data;
const struct platform_device_id *platid = platform_get_device_id(pdev);
struct sdhci_host *host;
struct sdhci_pltfm_host *pltfm_host;
struct resource *iomem;
int ret;
@ -71,16 +72,19 @@ static int __devinit sdhci_pltfm_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "Invalid iomem size. You may "
"experience problems.\n");
if (pdev->dev.parent)
host = sdhci_alloc_host(pdev->dev.parent, 0);
/* Some PCI-based MFD need the parent here */
if (pdev->dev.parent != &platform_bus)
host = sdhci_alloc_host(pdev->dev.parent, sizeof(*pltfm_host));
else
host = sdhci_alloc_host(&pdev->dev, 0);
host = sdhci_alloc_host(&pdev->dev, sizeof(*pltfm_host));
if (IS_ERR(host)) {
ret = PTR_ERR(host);
goto err;
}
pltfm_host = sdhci_priv(host);
host->hw_name = "platform";
if (pdata && pdata->ops)
host->ops = pdata->ops;

7
drivers/mmc/host/sdhci-pltfm.h
View File

@ -11,8 +11,15 @@
#ifndef _DRIVERS_MMC_SDHCI_PLTFM_H
#define _DRIVERS_MMC_SDHCI_PLTFM_H
#include <linux/clk.h>
#include <linux/types.h>
#include <linux/sdhci-pltfm.h>
struct sdhci_pltfm_host {
struct clk *clk;
u32 scratchpad; /* to handle quirks across io-accessor calls */
};
extern struct sdhci_pltfm_data sdhci_cns3xxx_pdata;
#endif /* _DRIVERS_MMC_SDHCI_PLTFM_H */