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 8 struct device; 9 struct 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 */ 18 struct 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 38 #ifdef CONFIG_OF 39 extern struct mmc_spi_platform_data *mmc_spi_get_pdata(struct spi_device *spi); 40 extern void mmc_spi_put_pdata(struct spi_device *spi); 41 #else 42 static inline struct mmc_spi_platform_data * mmc_spi_get_pdata(struct spi_device * spi)43mmc_spi_get_pdata(struct spi_device *spi) 44 { 45 return spi->dev.platform_data; 46 } mmc_spi_put_pdata(struct spi_device * spi)47static inline void mmc_spi_put_pdata(struct spi_device *spi) {} 48 #endif /* CONFIG_OF */ 49 50 #endif /* __LINUX_SPI_MMC_SPI_H */ 51
