Hi,
On 06-05-15 16:41, Simon Glass wrote:
Hi Hans,
On 5 May 2015 at 11:42, Simon Glass <s...@chromium.org> wrote:
On 5 May 2015 at 03:54, Hans de Goede <hdego...@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.
See the added doc comments for more details.
Signed-off-by: Hans de Goede <hdego...@redhat.com>
Acked-by: Simon Glass <s...@chromium.org>
---
drivers/usb/host/usb-uclass.c | 36 ++++++++++++++++++++++++++++++++
include/usb.h | 48 ++++++++++++++++++++++++++++++++++++++++++-
2 files changed, 83 insertions(+), 1 deletion(-)
Applied to u-boot-dm, thanks!
Again I am getting ahead of myself. This one fails on some Samsung boards:
35: dm: usb: Add support for interrupt queues to the dm usb code
arm: + arndale odroid snow odroid-xu3
+drivers/usb/host/ehci-hcd.o: In function `create_int_queue':
+build/../drivers/usb/host/ehci-hcd.c:1258: multiple definition of
`create_int_queue'
+drivers/usb/host/usb-uclass.o:build/../drivers/usb/host/usb-uclass.c:71:
first defined here
+drivers/usb/host/ehci-hcd.o: In function `poll_int_queue':
+build/../drivers/usb/host/ehci-hcd.c:1414: multiple definition of
`poll_int_queue'
+drivers/usb/host/usb-uclass.o:build/../drivers/usb/host/usb-uclass.c:83:
first defined here
+drivers/usb/host/ehci-hcd.o: In function `destroy_int_queue':
+build/../drivers/usb/host/ehci-hcd.c:1450: multiple definition of
`destroy_int_queue'
+drivers/usb/host/usb-uclass.o:build/../drivers/usb/host/usb-uclass.c:94:
first defined here
+make[2]: *** [drivers/usb/host/built-in.o] Error 1
+make[1]: *** [drivers/usb/host] Error 2
I'll drop this patch until you respin it.
Thinking more about this, now I understand what is going on, this build
failure goes away with the patch titled:
"dm: usb: Add support for interrupt queues to the dm ehci code"
I understand that having a build failure halfway through the series is not
acceptable, so I'll squash the 2 together.
Regards
Hans
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