1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __LINUX_SPI_MMC_SPI_H
3#define __LINUX_SPI_MMC_SPI_H
4
5#include <linux/spi/spi.h>
6#include <linux/interrupt.h>
7
8struct device;
9struct mmc_host;
10
11/* Put this in platform_data of a device being used to manage an MMC/SD
12 * card slot. (Modeled after PXA mmc glue; see that for usage examples.)
13 *
14 * REVISIT This is not a spi-specific notion. Any card slot should be
15 * able to handle it. If the MMC core doesn't adopt this kind of notion,
16 * switch the "struct device *" parameters over to "struct spi_device *".
17 */
18struct mmc_spi_platform_data {
19 /* driver activation and (optional) card detect irq hookup */
20 int (*init)(struct device *,
21 irqreturn_t (*)(int, void *),
22 void *);
23 void (*exit)(struct device *, void *);
24
25 /* Capabilities to pass into mmc core (e.g. MMC_CAP_NEEDS_POLL). */
26 unsigned long caps;
27 unsigned long caps2;
28
29 /* how long to debounce card detect, in msecs */
30 u16 detect_delay;
31
32 /* power management */
33 u16 powerup_msecs; /* delay of up to 250 msec */
34 u32 ocr_mask; /* available voltages */
35 void (*setpower)(struct device *, unsigned int maskval);
36};
37
38extern struct mmc_spi_platform_data *mmc_spi_get_pdata(struct spi_device *spi);
39extern void mmc_spi_put_pdata(struct spi_device *spi);
40
41#endif /* __LINUX_SPI_MMC_SPI_H */
42

source code of linux/include/linux/spi/mmc_spi.h