mmc_spi.h (1303B)
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 */