From 74590263384e5d4601de7f0ee2790477578829ea Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Mon, 10 Jun 2013 17:03:38 +0200 Subject: mmc: core: Push common suspend|resume code into each bus_ops By moving code from the mmc_suspend|resume_host down into each .suspend|resume bus_ops callback, we get a more flexible solution. Some nice side effects are that we get a better understanding of each bus_ops suspend|resume sequence and the common code don't have to take care of specific corner cases, especially for the SDIO case. Signed-off-by: Ulf Hansson Tested-by: Jaehoon Chung Signed-off-by: Chris Ball --- drivers/mmc/core/sdio.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'drivers/mmc/core/sdio.c') diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index be8cca8d3024..80d89cff7306 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -963,6 +963,9 @@ static int mmc_sdio_suspend(struct mmc_host *host) mmc_release_host(host); } + if (!err && !mmc_card_keep_power(host)) + mmc_power_off(host); + return err; } @@ -976,6 +979,23 @@ static int mmc_sdio_resume(struct mmc_host *host) /* Basic card reinitialization. */ mmc_claim_host(host); + /* Restore power if needed */ + if (!mmc_card_keep_power(host)) { + mmc_power_up(host); + mmc_select_voltage(host, host->ocr); + /* + * Tell runtime PM core we just powered up the card, + * since it still believes the card is powered off. + * Note that currently runtime PM is only enabled + * for SDIO cards that are MMC_CAP_POWER_OFF_CARD + */ + if (host->caps & MMC_CAP_POWER_OFF_CARD) { + pm_runtime_disable(&host->card->dev); + pm_runtime_set_active(&host->card->dev); + pm_runtime_enable(&host->card->dev); + } + } + /* No need to reinitialize powered-resumed nonremovable cards */ if (mmc_card_is_removable(host) || !mmc_card_keep_power(host)) { sdio_reset(host); @@ -1013,6 +1033,7 @@ static int mmc_sdio_resume(struct mmc_host *host) } } + host->pm_flags &= ~MMC_PM_KEEP_POWER; return err; } -- cgit v1.2.3