| /* 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 */ |
