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50 lines
1.5 KiB
50 lines
1.5 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __LINUX_SPI_MMC_SPI_H |
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#define __LINUX_SPI_MMC_SPI_H |
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#include <linux/spi/spi.h> |
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#include <linux/interrupt.h> |
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struct device; |
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struct mmc_host; |
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/* Put this in platform_data of a device being used to manage an MMC/SD |
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* card slot. (Modeled after PXA mmc glue; see that for usage examples.) |
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* |
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* REVISIT This is not a spi-specific notion. Any card slot should be |
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* able to handle it. If the MMC core doesn't adopt this kind of notion, |
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* switch the "struct device *" parameters over to "struct spi_device *". |
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*/ |
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struct mmc_spi_platform_data { |
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/* driver activation and (optional) card detect irq hookup */ |
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int (*init)(struct device *, |
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irqreturn_t (*)(int, void *), |
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void *); |
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void (*exit)(struct device *, void *); |
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/* Capabilities to pass into mmc core (e.g. MMC_CAP_NEEDS_POLL). */ |
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unsigned long caps; |
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unsigned long caps2; |
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/* how long to debounce card detect, in msecs */ |
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u16 detect_delay; |
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/* power management */ |
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u16 powerup_msecs; /* delay of up to 250 msec */ |
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u32 ocr_mask; /* available voltages */ |
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void (*setpower)(struct device *, unsigned int maskval); |
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}; |
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#ifdef CONFIG_OF |
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extern struct mmc_spi_platform_data *mmc_spi_get_pdata(struct spi_device *spi); |
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extern void mmc_spi_put_pdata(struct spi_device *spi); |
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#else |
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static inline struct mmc_spi_platform_data * |
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mmc_spi_get_pdata(struct spi_device *spi) |
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{ |
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return spi->dev.platform_data; |
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} |
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static inline void mmc_spi_put_pdata(struct spi_device *spi) {} |
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#endif /* CONFIG_OF */ |
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#endif /* __LINUX_SPI_MMC_SPI_H */
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