diff options
Diffstat (limited to 'drivers/mmc/core/sd.c')
| -rw-r--r-- | drivers/mmc/core/sd.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index 6ef84d0ca178..685796560f8b 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -1078,13 +1078,20 @@ static int mmc_sd_suspend(struct mmc_host *host) BUG_ON(!host->card); mmc_claim_host(host); + + if (mmc_card_suspended(host->card)) + goto out; + if (!mmc_host_is_spi(host)) err = mmc_deselect_cards(host); host->card->state &= ~MMC_STATE_HIGHSPEED; - if (!err) + if (!err) { mmc_power_off(host); - mmc_release_host(host); + mmc_card_set_suspended(host->card); + } +out: + mmc_release_host(host); return err; } @@ -1096,16 +1103,22 @@ static int mmc_sd_suspend(struct mmc_host *host) */ static int mmc_sd_resume(struct mmc_host *host) { - int err; + int err = 0; BUG_ON(!host); BUG_ON(!host->card); mmc_claim_host(host); + + if (!mmc_card_suspended(host->card)) + goto out; + mmc_power_up(host, host->card->ocr); err = mmc_sd_init_card(host, host->card->ocr, host->card); - mmc_release_host(host); + mmc_card_clr_suspended(host->card); +out: + mmc_release_host(host); return err; } |