include/linux/amba/mmci.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  *  include/linux/amba/mmci.h
   4  */
   5 #ifndef AMBA_MMCI_H
   6 #define AMBA_MMCI_H
   7
   8 #include <linux/mmc/host.h>
   9
  10 /**
  11  * struct mmci_platform_data - platform configuration for the MMCI
  12  * (also known as PL180) block.
  13  * @ocr_mask: available voltages on the 4 pins from the block, this
  14  * is ignored if a regulator is used, see the MMC_VDD_* masks in
  15  * mmc/host.h
  16  * @ios_handler: a callback function to act on specfic ios changes,
  17  * used for example to control a levelshifter
  18  * mask into a value to be binary (or set some other custom bits
  19  * in MMCIPWR) or:ed and written into the MMCIPWR register of the
  20  * block.  May also control external power based on the power_mode.
  21  * @status: if no GPIO read function was given to the block in
  22  * gpio_wp (below) this function will be called to determine
  23  * whether a card is present in the MMC slot or not
  24  * @gpio_wp: read this GPIO pin to see if the card is write protected
  25  * @gpio_cd: read this GPIO pin to detect card insertion
  26  * @cd_invert: true if the gpio_cd pin value is active low
  27  */
  28 struct mmci_platform_data {
  29         unsigned int ocr_mask;
  30         int (*ios_handler)(struct device *, struct mmc_ios *);
  31         unsigned int (*status)(struct device *);
  32         int     gpio_wp;
  33         int     gpio_cd;
  34         bool    cd_invert;
  35 };
  36
  37 #endif