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편집 파일: mmc-sdhci-s3c.h

/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __PLATFORM_DATA_SDHCI_S3C_H #define __PLATFORM_DATA_SDHCI_S3C_H struct platform_device; enum cd_types { S3C_SDHCI_CD_INTERNAL, /* use mmc internal CD line */ S3C_SDHCI_CD_EXTERNAL, /* use external callback */ S3C_SDHCI_CD_GPIO, /* use external gpio pin for CD line */ S3C_SDHCI_CD_NONE, /* no CD line, use polling to detect card */ S3C_SDHCI_CD_PERMANENT, /* no CD line, card permanently wired to host */ }; /** * struct s3c_sdhci_platdata() - Platform device data for Samsung SDHCI * @max_width: The maximum number of data bits supported. * @host_caps: Standard MMC host capabilities bit field. * @host_caps2: The second standard MMC host capabilities bit field. * @cd_type: Type of Card Detection method (see cd_types enum above) * @ext_cd_init: Initialize external card detect subsystem. Called on * sdhci-s3c driver probe when cd_type == S3C_SDHCI_CD_EXTERNAL. * notify_func argument is a callback to the sdhci-s3c driver * that triggers the card detection event. Callback arguments: * dev is pointer to platform device of the host controller, * state is new state of the card (0 - removed, 1 - inserted). * @ext_cd_cleanup: Cleanup external card detect subsystem. Called on * sdhci-s3c driver remove when cd_type == S3C_SDHCI_CD_EXTERNAL. * notify_func argument is the same callback as for ext_cd_init. * @ext_cd_gpio: gpio pin used for external CD line, valid only if * cd_type == S3C_SDHCI_CD_GPIO * @ext_cd_gpio_invert: invert values for external CD gpio line * @cfg_gpio: Configure the GPIO for a specific card bit-width * * Initialisation data specific to either the machine or the platform * for the device driver to use or call-back when configuring gpio or * card speed information. */ struct s3c_sdhci_platdata { unsigned int max_width; unsigned int host_caps; unsigned int host_caps2; unsigned int pm_caps; enum cd_types cd_type; int ext_cd_gpio; bool ext_cd_gpio_invert; int (*ext_cd_init)(void (*notify_func)(struct platform_device *, int state)); int (*ext_cd_cleanup)(void (*notify_func)(struct platform_device *, int state)); void (*cfg_gpio)(struct platform_device *dev, int width); }; #endif /* __PLATFORM_DATA_SDHCI_S3C_H */