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 extern struct mmc_spi_platform_data *mmc_spi_get_pdata(struct spi_device *spi);
39 extern void mmc_spi_put_pdata(struct spi_device *spi);
40
41 #endif /* __LINUX_SPI_MMC_SPI_H */
42
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