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dm: mmc: Add a function to obtain the block device 

The MMC block device is contained within struct mmc. But with driver model
this will not be the case. Add a function to obtain the block device. We
can later implement this for CONFIG_BLK.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2016-05-01 13:52:27 -06:00
parent e17d1143c1
commit cb5ec33d90
2 changed files with 13 additions and 0 deletions
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5
drivers/mmc/mmc.c
View File

@ -24,6 +24,11 @@
static struct list_head mmc_devices; static struct list_head mmc_devices;
static int cur_dev_num = -1; static int cur_dev_num = -1;
struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
{
return &mmc->block_dev;
}
__weak int board_mmc_getwp(struct mmc *mmc) __weak int board_mmc_getwp(struct mmc *mmc)
{ {
return -1; return -1;

8
include/mmc.h
View File

@ -498,4 +498,12 @@ int pci_mmc_init(const char *name, struct pci_device_id *mmc_supported);
#define CONFIG_SYS_MMC_MAX_BLK_COUNT 65535 #define CONFIG_SYS_MMC_MAX_BLK_COUNT 65535
#endif #endif
/**
* mmc_get_blk_desc() - Get the block descriptor for an MMC device
*
* @mmc: MMC device
* @return block device if found, else NULL
*/
struct blk_desc *mmc_get_blk_desc(struct mmc *mmc);
#endif /* _MMC_H_ */ #endif /* _MMC_H_ */