On 10 May 2015 at 06:10, Hans de Goede hdegoede@redhat.com wrote:
Interrupt endpoints typically are polled for a long time by the usb controller before they return anything, so calls to submit_int_msg() can take a long time to complete this.
To avoid this the u-boot code has the an interrupt queue mechanism / API, add support for this to the driver-model usb code and implement it for the dm ehci code.
See the added doc comments for more details.
Signed-off-by: Hans de Goede hdegoede@redhat.com Acked-by: Simon Glass sjg@chromium.org
drivers/usb/host/ehci-hcd.c | 26 +++++++++++++++++++++++ drivers/usb/host/usb-uclass.c | 36 ++++++++++++++++++++++++++++++++ include/usb.h | 48 ++++++++++++++++++++++++++++++++++++++++++- 3 files changed, 109 insertions(+), 1 deletion(-)
Applied to u-boot-dm, thanks!