1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* 2 /*
3 * include/linux/amba/mmci.h 3 * include/linux/amba/mmci.h
4 */ 4 */
5 #ifndef AMBA_MMCI_H 5 #ifndef AMBA_MMCI_H
6 #define AMBA_MMCI_H 6 #define AMBA_MMCI_H
7 7
8 #include <linux/mmc/host.h> 8 #include <linux/mmc/host.h>
9 9
10 /** 10 /**
11 * struct mmci_platform_data - platform config 11 * struct mmci_platform_data - platform configuration for the MMCI
12 * (also known as PL180) block. 12 * (also known as PL180) block.
13 * @ocr_mask: available voltages on the 4 pins 13 * @ocr_mask: available voltages on the 4 pins from the block, this
14 * is ignored if a regulator is used, see the 14 * is ignored if a regulator is used, see the MMC_VDD_* masks in
15 * mmc/host.h 15 * mmc/host.h
16 * @status: if no GPIO line was given to the b !! 16 * @ios_handler: a callback function to act on specfic ios changes,
17 * be called to determine whether a card is pr !! 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
18 */ 27 */
19 struct mmci_platform_data { 28 struct mmci_platform_data {
20 unsigned int ocr_mask; 29 unsigned int ocr_mask;
>> 30 int (*ios_handler)(struct device *, struct mmc_ios *);
21 unsigned int (*status)(struct device * 31 unsigned int (*status)(struct device *);
>> 32 int gpio_wp;
>> 33 int gpio_cd;
>> 34 bool cd_invert;
22 }; 35 };
23 36
24 #endif 37 #endif
25 38
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