diff options
Diffstat (limited to 'include/linux/amba/mmci.h')
| -rw-r--r-- | include/linux/amba/mmci.h | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/include/linux/amba/mmci.h b/include/linux/amba/mmci.h index 6b4241748dd..ca84ce70d5d 100644 --- a/include/linux/amba/mmci.h +++ b/include/linux/amba/mmci.h @@ -6,9 +6,32 @@ #include <linux/mmc/host.h> +/** + * struct mmci_platform_data - platform configuration for the MMCI + * (also known as PL180) block. + * @f_max: the maximum operational frequency for this host in this + * platform configuration. When this is specified it takes precedence + * over the module parameter for the same frequency. + * @ocr_mask: available voltages on the 4 pins from the block, this + * is ignored if a regulator is used, see the MMC_VDD_* masks in + * mmc/host.h + * @vdd_handler: a callback function to translate a MMC_VDD_* + * mask into a value to be binary (or set some other custom bits + * in MMCIPWR) or:ed and written into the MMCIPWR register of the + * block. May also control external power based on the power_mode. + * @status: if no GPIO read function was given to the block in + * gpio_wp (below) this function will be called to determine + * whether a card is present in the MMC slot or not + * @gpio_wp: read this GPIO pin to see if the card is write protected + * @gpio_cd: read this GPIO pin to detect card insertion + * @capabilities: the capabilities of the block as implemented in + * this platform, signify anything MMC_CAP_* from mmc/host.h + */ struct mmci_platform_data { - unsigned int ocr_mask; /* available voltages */ - u32 (*translate_vdd)(struct device *, unsigned int); + unsigned int f_max; + unsigned int ocr_mask; + u32 (*vdd_handler)(struct device *, unsigned int vdd, + unsigned char power_mode); unsigned int (*status)(struct device *); int gpio_wp; int gpio_cd; |