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mmc_spi: Add support for OpenFirmware bindings

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The support is implemented via platform data accessors, new module
(of_mmc_spi) will be created automatically when the driver compiles
on OpenFirmware platforms. Link-time dependency will load the module
automatically.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Anton Vorontsov 2008-12-30 18:15:28 +03:00 • committed by Pierre Ossman
parent c00a46abd4
commit 9c43df5791
4 changed files with 169 additions and 2 deletions
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15
include/linux/spi/mmc_spi.h
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@ -1,9 +1,10 @@
#ifndef __LINUX_SPI_MMC_SPI_H
#define __LINUX_SPI_MMC_SPI_H
#include <linux/device.h>
#include <linux/spi/spi.h>
#include <linux/interrupt.h>
struct device;
struct mmc_host;
/* Put this in platform_data of a device being used to manage an MMC/SD
@ -41,4 +42,16 @@ struct mmc_spi_platform_data {
void (*setpower)(struct device *, unsigned int maskval);
};
#ifdef CONFIG_OF
extern struct mmc_spi_platform_data *mmc_spi_get_pdata(struct spi_device *spi);
extern void mmc_spi_put_pdata(struct spi_device *spi);
#else
static inline struct mmc_spi_platform_data *
mmc_spi_get_pdata(struct spi_device *spi)
{
return spi->dev.platform_data;
}
static inline void mmc_spi_put_pdata(struct spi_device *spi) {}
#endif /* CONFIG_OF */
#endif /* __LINUX_SPI_MMC_SPI_H */