EHCI: HSIC: Disable asynchronous interrupt when wakeup gpio is present
Controller can generate interrupt asynchronously in low power mode (LPM).
Enable this interrupt in USBCMD register only when wakeup gpio IRQ is
not available.
(cherry picked from commit 0c9f29cff6b8686e9a89a500b545a9f331ab4618)
CRs-Fixed: 444883
Change-Id: I05258feb9476d1373d30645f6c750923589aa1cb
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
diff --git a/drivers/usb/host/ehci-msm-hsic.c b/drivers/usb/host/ehci-msm-hsic.c
index 1e52d79..7a1d0e8 100644
--- a/drivers/usb/host/ehci-msm-hsic.c
+++ b/drivers/usb/host/ehci-msm-hsic.c
@@ -696,9 +696,14 @@
* power mode (LPM). This interrupt is level triggered. So USB IRQ
* line must be disabled till async interrupt enable bit is cleared
* in USBCMD register. Assert STP (ULPI interface STOP signal) to
- * block data communication from PHY.
+ * block data communication from PHY. Enable asynchronous interrupt
+ * only when wakeup gpio IRQ is not present.
*/
- writel_relaxed(readl_relaxed(USB_USBCMD) | ASYNC_INTR_CTRL |
+ if (mehci->wakeup_irq)
+ writel_relaxed(readl_relaxed(USB_USBCMD) |
+ ULPI_STP_CTRL, USB_USBCMD);
+ else
+ writel_relaxed(readl_relaxed(USB_USBCMD) | ASYNC_INTR_CTRL |
ULPI_STP_CTRL, USB_USBCMD);
/*