mmc: sdhci-pxav3: add IRQ wake up support

[cjb: The MMP3 architecture requires a registered interrupt to retire wfi
when waking from suspend.]

Signed-off-by: Jialing Fu <jlfu@marvell.com>
Signed-off-by: Kevin Liu <kliu5@marvell.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
index b7ee7761bc26..3d20c10fc571 100644
--- a/drivers/mmc/host/sdhci-pxav3.c
+++ b/drivers/mmc/host/sdhci-pxav3.c
@@ -311,6 +311,13 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
 
         platform_set_drvdata(pdev, host);
 
+        if (pdata->pm_caps & MMC_PM_KEEP_POWER) {
+                device_init_wakeup(&pdev->dev, 1);
+                host->mmc->pm_flags |= MMC_PM_WAKE_SDIO_IRQ;
+        } else {
+                device_init_wakeup(&pdev->dev, 0);
+        }
+
         return 0;
 
 err_add_host: