linux-stable/include/linux/spi/mmc_spi.h
Paul Gortmaker 313162d0b8 device.h: audit and cleanup users in main include dir
The <linux/device.h> header includes a lot of stuff, and
it in turn gets a lot of use just for the basic "struct device"
which appears so often.

Clean up the users as follows:

1) For those headers only needing "struct device" as a pointer
in fcn args, replace the include with exactly that.

2) For headers not really using anything from device.h, simply
delete the include altogether.

3) For headers relying on getting device.h implicitly before
being included themselves, now explicitly include device.h

4) For files in which doing #1 or #2 uncovers an implicit
dependency on some other header, fix by explicitly adding
the required header(s).

Any C files that were implicitly relying on device.h to be
present have already been dealt with in advance.

Total removals from #1 and #2: 51.  Total additions coming
from #3: 9.  Total other implicit dependencies from #4: 7.

As of 3.3-rc1, there were 110, so a net removal of 42 gives
about a 38% reduction in device.h presence in include/*

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-03-16 10:38:24 -04:00

57 lines
1.6 KiB
C

#ifndef __LINUX_SPI_MMC_SPI_H
#define __LINUX_SPI_MMC_SPI_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
* card slot. (Modeled after PXA mmc glue; see that for usage examples.)
*
* REVISIT This is not a spi-specific notion. Any card slot should be
* able to handle it. If the MMC core doesn't adopt this kind of notion,
* switch the "struct device *" parameters over to "struct spi_device *".
*/
struct mmc_spi_platform_data {
/* driver activation and (optional) card detect irq hookup */
int (*init)(struct device *,
irqreturn_t (*)(int, void *),
void *);
void (*exit)(struct device *, void *);
/* sense switch on sd cards */
int (*get_ro)(struct device *);
/*
* If board does not use CD interrupts, driver can optimize polling
* using this function.
*/
int (*get_cd)(struct device *);
/* Capabilities to pass into mmc core (e.g. MMC_CAP_NEEDS_POLL). */
unsigned long caps;
/* how long to debounce card detect, in msecs */
u16 detect_delay;
/* power management */
u16 powerup_msecs; /* delay of up to 250 msec */
u32 ocr_mask; /* available voltages */
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 */