mmc: sdhci: Properly enable SDIO IRQ wakeups
A little more work was needed for SDIO IRQ wakeups to be functional.
Wake-on-WLAN on the SD WiFi adapter in the XO-1.5 laptop is now working.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 782c0ee..154cbf8 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1681,6 +1681,16 @@
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;
+ sdhci_writeb(host, val, SDHCI_WAKE_UP_CONTROL);
+}
+
+EXPORT_SYMBOL_GPL(sdhci_enable_irq_wakeups);
+
#endif /* CONFIG_PM */
/*****************************************************************************\