[U-Boot] [PATCH 12/17] musb-new: Fix interrupt transfers not working

Hans de Goede
2015-01-11T19:34:50Z

For bulk and ctrl transfers common/usb.c sets udev->status = USB_ST_NOT_PROC,
but it does not do so for interrupt transfers.

musb_uboot.c: submit_urb() however was waiting for USB_ST_NOT_PROC to become 0,
and thus without anyone setting USB_ST_NOT_PROC would exit immediately for
interrupt urbs, returning the urb status of EINPROGRESS as error.

This commit fixes this, thereby also making usb_kbd.c work together with
musb_new and CONFIG_SYS_USB_EVENT_POLL.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/usb/musb-new/musb_uboot.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/musb-new/musb_uboot.c b/drivers/usb/musb-new/musb_uboot.c
index f8a0346..28500bf 100644
--- a/drivers/usb/musb-new/musb_uboot.c
+++ b/drivers/usb/musb-new/musb_uboot.c
@@ -74,7 +74,7 @@ static int submit_urb(struct usb_hcd *hcd, struct urb *urb)
if (ctrlc())
return -EIO;
host->isr(0, host);
- } while ((urb->dev->status & USB_ST_NOT_PROC) &&
+ } while (urb->status == -EINPROGRESS &&
get_timer(0) < timeout);

return urb->status;
--
2.1.0