usb: dwc3: Use high priority worker as bottom half handler
Latency involved in handling dwc3 interrupt in real time threaded
interrupt is sometimes resulting into RT throttling. Hence queue
bottom half work from dwc3 hard irq handler to a high priority
workqueue. Also, update the corresponding irq flag in host
controller platform driver.
Change-Id: If65a522efb6d792eea7fa7afc4c5e4dcd1cb6fb8
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index f1fe81c..6ee10df 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -320,14 +320,14 @@
goto put_usb3_hcd;
}
- ret = usb_add_hcd(hcd, irq, IRQF_SHARED | IRQF_ONESHOT);
+ ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (ret)
goto disable_usb_phy;
if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
xhci->shared_hcd->can_do_streams = 1;
- ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED | IRQF_ONESHOT);
+ ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
if (ret)
goto dealloc_usb2_hcd;