1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef __PLATFORM_DATA_SDHCI_S3C_H 3*4882a593Smuzhiyun #define __PLATFORM_DATA_SDHCI_S3C_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun struct platform_device; 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun enum cd_types { 8*4882a593Smuzhiyun S3C_SDHCI_CD_INTERNAL, /* use mmc internal CD line */ 9*4882a593Smuzhiyun S3C_SDHCI_CD_EXTERNAL, /* use external callback */ 10*4882a593Smuzhiyun S3C_SDHCI_CD_GPIO, /* use external gpio pin for CD line */ 11*4882a593Smuzhiyun S3C_SDHCI_CD_NONE, /* no CD line, use polling to detect card */ 12*4882a593Smuzhiyun S3C_SDHCI_CD_PERMANENT, /* no CD line, card permanently wired to host */ 13*4882a593Smuzhiyun }; 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun /** 16*4882a593Smuzhiyun * struct s3c_sdhci_platdata() - Platform device data for Samsung SDHCI 17*4882a593Smuzhiyun * @max_width: The maximum number of data bits supported. 18*4882a593Smuzhiyun * @host_caps: Standard MMC host capabilities bit field. 19*4882a593Smuzhiyun * @host_caps2: The second standard MMC host capabilities bit field. 20*4882a593Smuzhiyun * @cd_type: Type of Card Detection method (see cd_types enum above) 21*4882a593Smuzhiyun * @ext_cd_init: Initialize external card detect subsystem. Called on 22*4882a593Smuzhiyun * sdhci-s3c driver probe when cd_type == S3C_SDHCI_CD_EXTERNAL. 23*4882a593Smuzhiyun * notify_func argument is a callback to the sdhci-s3c driver 24*4882a593Smuzhiyun * that triggers the card detection event. Callback arguments: 25*4882a593Smuzhiyun * dev is pointer to platform device of the host controller, 26*4882a593Smuzhiyun * state is new state of the card (0 - removed, 1 - inserted). 27*4882a593Smuzhiyun * @ext_cd_cleanup: Cleanup external card detect subsystem. Called on 28*4882a593Smuzhiyun * sdhci-s3c driver remove when cd_type == S3C_SDHCI_CD_EXTERNAL. 29*4882a593Smuzhiyun * notify_func argument is the same callback as for ext_cd_init. 30*4882a593Smuzhiyun * @ext_cd_gpio: gpio pin used for external CD line, valid only if 31*4882a593Smuzhiyun * cd_type == S3C_SDHCI_CD_GPIO 32*4882a593Smuzhiyun * @ext_cd_gpio_invert: invert values for external CD gpio line 33*4882a593Smuzhiyun * @cfg_gpio: Configure the GPIO for a specific card bit-width 34*4882a593Smuzhiyun * 35*4882a593Smuzhiyun * Initialisation data specific to either the machine or the platform 36*4882a593Smuzhiyun * for the device driver to use or call-back when configuring gpio or 37*4882a593Smuzhiyun * card speed information. 38*4882a593Smuzhiyun */ 39*4882a593Smuzhiyun struct s3c_sdhci_platdata { 40*4882a593Smuzhiyun unsigned int max_width; 41*4882a593Smuzhiyun unsigned int host_caps; 42*4882a593Smuzhiyun unsigned int host_caps2; 43*4882a593Smuzhiyun unsigned int pm_caps; 44*4882a593Smuzhiyun enum cd_types cd_type; 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun int ext_cd_gpio; 47*4882a593Smuzhiyun bool ext_cd_gpio_invert; 48*4882a593Smuzhiyun int (*ext_cd_init)(void (*notify_func)(struct platform_device *, 49*4882a593Smuzhiyun int state)); 50*4882a593Smuzhiyun int (*ext_cd_cleanup)(void (*notify_func)(struct platform_device *, 51*4882a593Smuzhiyun int state)); 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun void (*cfg_gpio)(struct platform_device *dev, int width); 54*4882a593Smuzhiyun }; 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun #endif /* __PLATFORM_DATA_SDHCI_S3C_H */ 58