linux-stable/include/linux/spi/mmc_spi.h
Andy Shevchenko edd6021465 mmc: mmc_spi: Make of_mmc_spi.c resource provider agnostic
In order to use the same driver on non-OF platforms, make
of_mmc_spi.c resource provider agnostic.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210419112459.25241-6-andriy.shevchenko@linux.intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2021-04-23 09:29:49 +02:00

41 lines
1.3 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#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 *);
/* Capabilities to pass into mmc core (e.g. MMC_CAP_NEEDS_POLL). */
unsigned long caps;
unsigned long caps2;
/* 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);
};
extern struct mmc_spi_platform_data *mmc_spi_get_pdata(struct spi_device *spi);
extern void mmc_spi_put_pdata(struct spi_device *spi);
#endif /* __LINUX_SPI_MMC_SPI_H */