From d3fe37b1a1d98f060279bfa32fcf5a134851a91a Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Sat, 2 Oct 2010 13:54:07 +0200 Subject: mmc: sdio: add power_restore support Add a power_restore handler to the SDIO bus ops, in order to support waking up SDIO cards that were powered off by runtime pm. Signed-off-by: Ohad Ben-Cohen Tested-by: Luciano Coelho Signed-off-by: Chris Ball --- drivers/mmc/core/sdio.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'drivers/mmc') diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index 3be1571e4a51..f17e0e0bd9d1 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -638,11 +638,29 @@ static int mmc_sdio_resume(struct mmc_host *host) return err; } +static int mmc_sdio_power_restore(struct mmc_host *host) +{ + int ret; + + BUG_ON(!host); + BUG_ON(!host->card); + + mmc_claim_host(host); + ret = mmc_sdio_init_card(host, host->ocr, host->card, + (host->pm_flags & MMC_PM_KEEP_POWER)); + if (!ret && host->sdio_irqs) + mmc_signal_sdio_irq(host); + mmc_release_host(host); + + return ret; +} + static const struct mmc_bus_ops mmc_sdio_ops = { .remove = mmc_sdio_remove, .detect = mmc_sdio_detect, .suspend = mmc_sdio_suspend, .resume = mmc_sdio_resume, + .power_restore = mmc_sdio_power_restore, }; -- cgit v1.2.3-59-g8ed1b