38 lines
1.3 KiB
C
38 lines
1.3 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* include/linux/amba/mmci.h
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*/
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#ifndef AMBA_MMCI_H
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#define AMBA_MMCI_H
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#include <linux/mmc/host.h>
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/**
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* struct mmci_platform_data - platform configuration for the MMCI
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* (also known as PL180) block.
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* @ocr_mask: available voltages on the 4 pins from the block, this
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* is ignored if a regulator is used, see the MMC_VDD_* masks in
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* mmc/host.h
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* @ios_handler: a callback function to act on specfic ios changes,
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* used for example to control a levelshifter
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* mask into a value to be binary (or set some other custom bits
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* in MMCIPWR) or:ed and written into the MMCIPWR register of the
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* block. May also control external power based on the power_mode.
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* @status: if no GPIO read function was given to the block in
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* gpio_wp (below) this function will be called to determine
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* whether a card is present in the MMC slot or not
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* @gpio_wp: read this GPIO pin to see if the card is write protected
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* @gpio_cd: read this GPIO pin to detect card insertion
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* @cd_invert: true if the gpio_cd pin value is active low
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*/
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struct mmci_platform_data {
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unsigned int ocr_mask;
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int (*ios_handler)(struct device *, struct mmc_ios *);
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unsigned int (*status)(struct device *);
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int gpio_wp;
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int gpio_cd;
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bool cd_invert;
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};
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#endif
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