diff options
| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2020-09-18 23:54:46 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-09-25 13:24:02 +0200 |
| commit | 3439c588c23c7058b184240b11ffe7edd7b8ac7c (patch) | |
| tree | 52dfcb50ebb827bb8019d705f7cda24fb851ff15 /drivers/mmc/core | |
| parent | 0caf60c4b110b5aea9a0700be277421c1f575041 (diff) | |
| download | linux-3439c588c23c7058b184240b11ffe7edd7b8ac7c.tar.bz2 | |
mmc: core: document mmc_hw_reset()
Add documentation for mmc_hw_reset to make sure the intended use case is
clear.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20200918215446.65654-1-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/core')
| -rw-r--r-- | drivers/mmc/core/core.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 8ccae6452b9c..d42037f0f10d 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -2063,6 +2063,16 @@ static void mmc_hw_reset_for_init(struct mmc_host *host) host->ops->hw_reset(host); } +/** + * mmc_hw_reset - reset the card in hardware + * @host: MMC host to which the card is attached + * + * Hard reset the card. This function is only for upper layers, like the + * block layer or card drivers. You cannot use it in host drivers (struct + * mmc_card might be gone then). + * + * Return: 0 on success, -errno on failure + */ int mmc_hw_reset(struct mmc_host *host) { int ret; |