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 <ohad@wizery.com> Tested-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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@ -638,11 +638,29 @@ static int mmc_sdio_resume(struct mmc_host *host)
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return err;
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}
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static int mmc_sdio_power_restore(struct mmc_host *host)
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{
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int ret;
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BUG_ON(!host);
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BUG_ON(!host->card);
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mmc_claim_host(host);
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ret = mmc_sdio_init_card(host, host->ocr, host->card,
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(host->pm_flags & MMC_PM_KEEP_POWER));
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if (!ret && host->sdio_irqs)
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mmc_signal_sdio_irq(host);
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mmc_release_host(host);
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return ret;
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}
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static const struct mmc_bus_ops mmc_sdio_ops = {
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.remove = mmc_sdio_remove,
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.detect = mmc_sdio_detect,
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.suspend = mmc_sdio_suspend,
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.resume = mmc_sdio_resume,
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.power_restore = mmc_sdio_power_restore,
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};
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