mmc: sdhci-pci: Add MSI support

Signed-off-by: NAlexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: NChris Ball <cjb@laptop.org>

drivers/mmc/host/sdhci-pci.c

@@ -1385,6 +1385,8 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev,
 
 	slots = chip->num_slots;	/* Quirk may have changed this */
 
+	pci_enable_msi(pdev);
+
 	for (i = 0; i < slots; i++) {
 		slot = sdhci_pci_probe_slot(pdev, chip, first_bar, i);
 		if (IS_ERR(slot)) {
@@ -1403,6 +1405,8 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev,
 	return 0;
 
 free:
+	pci_disable_msi(pdev);
+
 	pci_set_drvdata(pdev, NULL);
 	kfree(chip);
 
@@ -1425,6 +1429,8 @@ static void __devexit sdhci_pci_remove(struct pci_dev *pdev)
 		for (i = 0; i < chip->num_slots; i++)
 			sdhci_pci_remove_slot(chip->slots[i]);
 
+		pci_disable_msi(pdev);
+
 		pci_set_drvdata(pdev, NULL);
 		kfree(chip);
 	}