usb: musb: musb_host: Enable HCD_BH flag to handle urb return in bottom half

Enable HCD_BH flag for musb host controller driver.
This improves the MSC/UVC through put. With this enabled
even 640x480@30fps webcam streaming is also supported.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 883a9adfdfff5f0c1643036e0be7d7d22d1e73a8..c3d5fc9dfb5bd56f5adc0a3cee337ffd1c31541f 100644 (file)
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -2613,7 +2613,7 @@ static const struct hc_driver musb_hc_driver = {
        .description            = "musb-hcd",
        .product_desc           = "MUSB HDRC host driver",
        .hcd_priv_size          = sizeof(struct musb *),
-       .flags                  = HCD_USB2 | HCD_MEMORY,
+       .flags                  = HCD_USB2 | HCD_MEMORY | HCD_BH,
 
        /* not using irq handler or reset hooks from usbcore, since
         * those must be shared with peripheral code for OTG configs