diff options
Diffstat (limited to 'drivers/mmc/core/sdio.c')
| -rw-r--r-- | drivers/mmc/core/sdio.c | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index 42a949b723b..efef5f94ac4 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -547,9 +547,11 @@ static void mmc_sdio_detect(struct mmc_host *host) BUG_ON(!host->card); /* Make sure card is powered before detecting it */ - err = pm_runtime_get_sync(&host->card->dev); - if (err < 0) - goto out; + if (host->caps & MMC_CAP_POWER_OFF_CARD) { + err = pm_runtime_get_sync(&host->card->dev); + if (err < 0) + goto out; + } mmc_claim_host(host); @@ -571,7 +573,8 @@ static void mmc_sdio_detect(struct mmc_host *host) * is about to show up at this point, the _sync variant is * desirable anyway. */ - pm_runtime_put_sync(&host->card->dev); + if (host->caps & MMC_CAP_POWER_OFF_CARD) + pm_runtime_put_sync(&host->card->dev); out: if (err) { @@ -728,16 +731,21 @@ int mmc_attach_sdio(struct mmc_host *host, u32 ocr) card = host->card; /* - * Let runtime PM core know our card is active + * Enable runtime PM only if supported by host+card+board */ - err = pm_runtime_set_active(&card->dev); - if (err) - goto remove; + if (host->caps & MMC_CAP_POWER_OFF_CARD) { + /* + * Let runtime PM core know our card is active + */ + err = pm_runtime_set_active(&card->dev); + if (err) + goto remove; - /* - * Enable runtime PM for this card - */ - pm_runtime_enable(&card->dev); + /* + * Enable runtime PM for this card + */ + pm_runtime_enable(&card->dev); + } /* * The number of functions on the card is encoded inside @@ -755,9 +763,10 @@ int mmc_attach_sdio(struct mmc_host *host, u32 ocr) goto remove; /* - * Enable Runtime PM for this func + * Enable Runtime PM for this func (if supported) */ - pm_runtime_enable(&card->sdio_func[i]->dev); + if (host->caps & MMC_CAP_POWER_OFF_CARD) + pm_runtime_enable(&card->sdio_func[i]->dev); } mmc_release_host(host); |