25985edced
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
61 lines
2.3 KiB
C
61 lines
2.3 KiB
C
/*
|
|
* include/linux/amba/mmci.h
|
|
*/
|
|
#ifndef AMBA_MMCI_H
|
|
#define AMBA_MMCI_H
|
|
|
|
#include <linux/mmc/host.h>
|
|
|
|
/* Just some dummy forwarding */
|
|
struct dma_chan;
|
|
|
|
/**
|
|
* 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
|
|
* @cd_invert: true if the gpio_cd pin value is active low
|
|
* @capabilities: the capabilities of the block as implemented in
|
|
* this platform, signify anything MMC_CAP_* from mmc/host.h
|
|
* @dma_filter: function used to select an appropriate RX and TX
|
|
* DMA channel to be used for DMA, if and only if you're deploying the
|
|
* generic DMA engine
|
|
* @dma_rx_param: parameter passed to the DMA allocation
|
|
* filter in order to select an appropriate RX channel. If
|
|
* there is a bidirectional RX+TX channel, then just specify
|
|
* this and leave dma_tx_param set to NULL
|
|
* @dma_tx_param: parameter passed to the DMA allocation
|
|
* filter in order to select an appropriate TX channel. If this
|
|
* is NULL the driver will attempt to use the RX channel as a
|
|
* bidirectional channel
|
|
*/
|
|
struct mmci_platform_data {
|
|
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;
|
|
bool cd_invert;
|
|
unsigned long capabilities;
|
|
bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
|
|
void *dma_rx_param;
|
|
void *dma_tx_param;
|
|
};
|
|
|
|
#endif
|