sdhci:Fix to restore SDIO card interrupt after resume

drivers/mmc/host/sdhci.c

 /*
  *  linux/drivers/mmc/host/sdhci.c - Secure Digital Host Controller Interface driver
  *
  *  Copyright (C) 2005-2008 Pierre Ossman, All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or (at
  * your option) any later version.
  *
@@ skipping 1636 matching lines @@
 int sdhci_suspend_host(struct sdhci_host *host, pm_message_t state)
 {
         int ret = 0;
         struct mmc_host *mmc = host->mmc;
 
         sdhci_disable_card_detection(host);
 
         if (mmc->card && (mmc->card->type != MMC_TYPE_SDIO))
                 ret = mmc_suspend_host(host->mmc);
 
+        /* Save the original intmask to restore later */
+        host->save_intmask = sdhci_readl(host, SDHCI_INT_ENABLE);
         sdhci_mask_irqs(host, SDHCI_INT_ALL_MASK);
 
         if (host->vmmc)
                 ret = regulator_disable(host->vmmc);
 
         if (host->irq)
                 disable_irq(host->irq);
 
         return ret;
 }
@@ skipping 21 matching lines @@
                 enable_irq(host->irq);
 
         sdhci_init(host, (host->mmc->pm_flags & MMC_PM_KEEP_POWER));
         mmiowb();
 
         if (mmc->card && (mmc->card->type != MMC_TYPE_SDIO))
                 ret = mmc_resume_host(host->mmc);
 
         sdhci_enable_card_detection(host);
 
+        /* Restore the original intmask */
+        sdhci_unmask_irqs(host, host->save_intmask);
+
         return ret;
 }
 
 EXPORT_SYMBOL_GPL(sdhci_resume_host);
 
 void sdhci_enable_irq_wakeups(struct sdhci_host *host)
 {
         u8 val;
         val = sdhci_readb(host, SDHCI_WAKE_UP_CONTROL);
         val |= SDHCI_WAKE_ON_INT;
@@ skipping 409 matching lines @@
 module_init(sdhci_drv_init);
 module_exit(sdhci_drv_exit);
 
 module_param(debug_quirks, uint, 0444);
 
 MODULE_AUTHOR("Pierre Ossman <pierre@ossman.eu>");
 MODULE_DESCRIPTION("Secure Digital Host Controller Interface core driver");
 MODULE_LICENSE("GPL");
 
 MODULE_PARM_DESC(debug_quirks, "Force certain quirks.");