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mmc-uclass: correct the device number

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Not like the mmc-legacy which the devnum starts from 1, it starts from 0
in mmc-uclass, so the device number should be (devnum + 1) in get_mmc_num().

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
This commit is contained in:
Kever Yang 2016-07-22 17:22:50 +08:00 committed by Simon Glass
parent 5c928d0204
commit 46683f3da1
2 changed files with 9 additions and 3 deletions
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6
drivers/mmc/mmc-uclass.c
View File

@ -111,18 +111,18 @@ struct mmc *find_mmc_device(int dev_num)
int get_mmc_num(void)
{
return max(blk_find_max_devnum(IF_TYPE_MMC), 0);
return max((blk_find_max_devnum(IF_TYPE_MMC) + 1), 0);
}
int mmc_get_next_devnum(void)
{
int ret;
ret = get_mmc_num();
ret = blk_find_max_devnum(IF_TYPE_MMC);
if (ret < 0)
return ret;
return ret + 1;
return ret;
}
struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)

6
include/mmc.h
View File

@ -503,6 +503,12 @@ void mmc_set_clock(struct mmc *mmc, uint clock);
struct mmc *find_mmc_device(int dev_num);
int mmc_set_dev(int dev_num);
void print_mmc_devices(char separator);
/**
* get_mmc_num() - get the total MMC device number
*
* @return 0 if there is no MMC device, else the number of devices
*/
int get_mmc_num(void);
int mmc_hwpart_config(struct mmc *mmc, const struct mmc_hwpart_conf *conf,
enum mmc_hwpart_conf_mode mode);