Hi list,
Linux kernel (3.12.8) fails to setup EHCI debug port on my Sandy Bridge
server. This seems to be a normal thing as I tried on other machines and
got the same result.
This is the EHCI host controller information (printed by lspci -vvv)
00:1a.0 USB controller: Intel Corporation
[0.00] ehci_setup failed
[0.00] Malformed early option 'kgdbdbgp'
... ...
It fails in dbgp_ehci_startup().
Thanks,
Allen
On 2/19/2014 1:01 AM, Felipe Balbi wrote:
On Tue, Feb 18, 2014 at 09:01:29AM -0800, Greg KH wrote:
On Tue, Feb 18, 2014 at 02:46:00PM +0800, Lu, Baolu wrote:
Hi list
When the xHCI PCI host is suspended, if do_wakeup is false in xhci_pci_suspend,
xhci_bus_suspend needs to clear all root port wake on bits. Otherwise some Intel
platform may get a spurious wakeup, even if PCI PME# is disabled.
http://marc.info/?l=linux-usbm=138194006009255w=2
Signed-off-by: Lu
, that
contains the commit 9777e3ce907d4cb5a513902a87ecd03b52499569
USB: xHCI: bus power management implementation.
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/host/xhci-hub.c | 5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb
Hi,
I am using an ASUS T100TA with dock attached. I installed Ubuntu Linux
on eMMC and customized the kernel.
I started from echo mem /sys/power/state. Kernel starts its
processes to put the system into suspend mode. Before kernel executes to
xhci_bus_suspend(), xHC USB 2 root hub port
.
With this quirk set, wakeup capability will be ignored during
device configure.
This patch could be back-ported to kernels as old as 2.6.39.
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/core/hub.c | 6 --
drivers/usb/core/quirks.c | 4
include/linux/usb/quirks.h | 3
On 8/29/2014 7:59 PM, Sergei Shtylyov wrote:
Hello.
On 8/29/2014 8:26 AM, Lu Baolu wrote:
This full-speed USB device generates spurious remote wakeup event
as soon as USB_DEVICE_REMOTE_WAKEUP feature is set. As the result,
Linux can't enter system suspend and S0ix power saving modes once
.
With this quirk set, wakeup capability will be ignored during
device configure.
This patch could be back-ported to kernels as old as 2.6.39.
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/core/hub.c | 6 --
drivers/usb/core/quirks.c | 4
include/linux/usb/quirks.h | 3
Hi Andreas,
I'd like to reproduce this problem in the lab. How can I get a CDC device?
Thanks,
-baolu
On 9/10/2014 3:04 PM, Kasberger Andreas wrote:
So I am back with more tests on this problem.
Intel itself told us it is a problem on the driver for the XHCI host
controller. I will put some
According to xHCI specification, PORT_DEV_REMOVE(bit 30) in PORTSC
true means Device is non-removable.
Reported-by: Juro Bystricky jurobystri...@hotmail.com
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/host/xhci.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff
On 09/18/2014 10:40 PM, Alan Stern wrote:
Is this quirk doable? What's your opinions?
It's okay with me.
Acked-by: Alan Sternst...@rowland.harvard.edu
Thank you Alan.
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.
With this quirk set, wakeup capability will be ignored during
device configure.
This patch could be back-ported to kernels as old as 2.6.39.
Signed-off-by: Lu Baolu baolu...@linux.intel.com
Acked-by: Alan Stern st...@rowland.harvard.edu
---
drivers/usb/core/hub.c | 6 --
drivers/usb/core
Can you try with the latest kernel?
On 9/24/2014 6:13 AM, Len Berman wrote:
I'm running debian 7.
Linux foobar 3.2.0-4-amd64 #1 SMP Debian 3.2.60-1+deb7u3 x86_64 GNU/Linux.
I have a Passport drive which fails on the USB3 connector. It works
fine on USB2. It also works fine as USB3 on my
On 9/30/2014 5:03 AM, Mark Knibbs wrote:
Great. I hope someone else is motivated to reproduce the issue. It will
take a long time for me to bisect due to my slow computer.
Hi Mark,
I tried to reproduce this issue. I connected a USB key under a
full-speed hub.
sg_rbuf returns error which I
:10:28 +0800
Lu, Baolu baolu...@linux.intel.com wrote:
On 9/30/2014 5:03 AM, Mark Knibbs wrote:
Great. I hope someone else is motivated to reproduce the issue. It will
take a long time for me to bisect due to my slow computer.
Hi Mark,
I tried to reproduce this issue. I connected a USB key under
On 10/09/2014 07:07 PM, Mark Knibbs wrote:
[For removable media, it's a good idea to disable polling for medium
changes before running a test. Depending on kernel distribution that could
be achieved by doing
udisks --inhibit-all-polling
and/or for example
echo -1
On 10/8/2014 11:52 PM, Alan Stern wrote:
On Wed, 8 Oct 2014, Mathias Nyman wrote:
Index: usb-3.17/drivers/usb/host/xhci-hub.c
===
--- usb-3.17.orig/drivers/usb/host/xhci-hub.c
+++ usb-3.17/drivers/usb/host/xhci-hub.c
@@ -1136,13
Hi Dmitry,
Can you please try to disable wakeup of root hub instead of host controller?
Regards,
-baolu
On 10/10/2014 3:16 PM, Dmitry Nezhevenko wrote:
On Wed, Oct 08, 2014 at 12:38:35PM -0400, Alan Stern wrote:
Dmitry, this gave me another idea. Can you test the patch below,
_without_ the
On 10/15/2014 6:07 PM, Dmitry Nezhevenko wrote:
On Sat, Oct 11, 2014 at 03:51:47PM +0800, Lu, Baolu wrote:
Hi Dmitry,
Can you please try to disable wakeup of root hub instead of host controller?
Hi,
Sorry for delay. Can you please suggest how to do this?
I always do this with below steps
.
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/host/xhci-pci.c | 42 ++
drivers/usb/host/xhci.h | 6 ++
2 files changed, 48 insertions(+)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 280dde9..3e7441a
According to xHCI specification, PORT_DEV_REMOVE(bit 30) in PORTSC
true means Device is non-removable.
Reported-by: Juro Bystricky jurobystri...@hotmail.com
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/host/xhci.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff
This serie of patch reworks commit ff8cbf250b448aac35589f6075082c3fcad8a8fe.
This has been discussed at http://www.spinics.net/lists/linux-usb/msg114986.html
It also includes a patch to fix a comment in drivers/usb/host/xhci.h.
Lu Baolu (3):
usb: xhci: Revert xhci: clear root port wake on bits
This reverts commit ff8cbf250b448aac35589f6075082c3fcad8a8fe.
Commit ff8cbf250b448aac35589f6075082c3fcad8a8fe triggers the bug logged at
https://bugzilla.kernel.org/show_bug.cgi?id=85701
Reported-by: Dmitry Nezhevenko d...@inhex.net
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers
On 10/31/2014 10:28 PM, Alan Stern wrote:
On Fri, 31 Oct 2014, Lu Baolu wrote:
xhci: clear root port wake on bits if controller isn't wake-up capable
When xHCI PCI host is suspended, if do_wakeup is false in xhci_pci_suspend,
xhci_pci_suspend needs to clear all root port wake on bits
This reverts commit ff8cbf250b448aac35589f6075082c3fcad8a8fe.
Commit ff8cbf250b448aac35589f6075082c3fcad8a8fe triggers the bug logged at
https://bugzilla.kernel.org/show_bug.cgi?id=85701
Reported-by: Dmitry Nezhevenko d...@inhex.net
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers
According to xHCI specification, PORT_DEV_REMOVE(bit 30) in PORTSC
true means Device is non-removable.
Reported-by: Juro Bystricky jurobystri...@hotmail.com
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/host/xhci.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff
xhci controllers.
Lu Baolu (3):
usb: xhci: Revert xhci: clear root port wake on bits if controller
isn't wake-up capable
usb: xhci: This reworks ff8cbf250b448aac35589f6075082c3fcad8a8fe
usb: xhci: fix comment for PORT_DEV_REMOVE
drivers/usb/host/xhci-hub.c | 5 +
drivers/usb/host
-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/host/xhci.c | 42 ++
1 file changed, 42 insertions(+)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 2a5d45b..cd57aae 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host
On 11/5/2014 12:58 AM, Alan Stern wrote:
On Tue, 4 Nov 2014, Lu Baolu wrote:
xhci: clear root port wake on bits if controller isn't wake-up capable
When system is being suspended, if host device is not wakeup capable,
xhci_suspend() needs to clear all root port wake on bits. Otherwise,
some
wake-up capable to allowed to do wakeup
in both comments and patch description.
* Add Suggested-by: Alan Stern
Changes in v2:
* Should not be a quirk.
* Should be applied to all xhci controllers.
Lu Baolu (3):
usb: xhci: Revert xhci: clear root port wake on bits if controller
isn't wake
This reverts commit ff8cbf250b448aac35589f6075082c3fcad8a8fe.
Commit ff8cbf250b448aac35589f6075082c3fcad8a8fe triggers the bug logged at
https://bugzilla.kernel.org/show_bug.cgi?id=85701
Signed-off-by: Lu Baolu baolu...@linux.intel.com
Reported-by: Dmitry Nezhevenko d...@inhex.net
---
drivers
According to xHCI specification, PORT_DEV_REMOVE(bit 30) in PORTSC
true means Device is non-removable.
Signed-off-by: Lu Baolu baolu...@linux.intel.com
Reported-by: Juro Bystricky jurobystri...@hotmail.com
---
drivers/usb/host/xhci.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff
.
Signed-off-by: Lu Baolu baolu...@linux.intel.com
Suggested-by: Alan Stern st...@rowland.harvard.edu
---
drivers/usb/host/xhci-pci.c | 2 +-
drivers/usb/host/xhci-plat.c | 10 +-
drivers/usb/host/xhci.c | 44 +++-
drivers/usb/host/xhci.h
On 11/6/2014 5:24 AM, Alan Stern wrote:
On Wed, 5 Nov 2014, Lu Baolu wrote:
xhci: clear root port wake on bits if controller isn't allowed to do wakeup
When system is being suspended, if host device is not allowed to do wakeup,
xhci_suspend() needs to clear all root port wake on bits
.
- Should be applied to all xhci controllers.
Lu Baolu (3):
usb: xhci: Revert xhci: clear root port wake on bits if controller
isn't wake-up capable
usb: xhci: This reworks ff8cbf250b448aac35589f6075082c3fcad8a8fe
usb: xhci: fix comment for PORT_DEV_REMOVE
drivers/usb/host/xhci
.
Signed-off-by: Lu Baolu baolu...@linux.intel.com
Suggested-by: Alan Stern st...@rowland.harvard.edu
Acked-by: Alan Stern st...@rowland.harvard.edu
---
drivers/usb/host/xhci-pci.c | 2 +-
drivers/usb/host/xhci-plat.c | 10 +-
drivers/usb/host/xhci.c | 42
According to xHCI specification, PORT_DEV_REMOVE(bit 30) in PORTSC
true means Device is non-removable.
Signed-off-by: Lu Baolu baolu...@linux.intel.com
Reported-by: Juro Bystricky jurobystri...@hotmail.com
---
drivers/usb/host/xhci.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff
This reverts commit ff8cbf250b448aac35589f6075082c3fcad8a8fe.
Commit ff8cbf250b448aac35589f6075082c3fcad8a8fe triggers the bug logged at
https://bugzilla.kernel.org/show_bug.cgi?id=85701
Signed-off-by: Lu Baolu baolu...@linux.intel.com
Reported-by: Dmitry Nezhevenko d...@inhex.net
---
drivers
Hi,
Have you tried the latest kernel?
Can below commit change anything?
commit bb86cf569bbd7ad4dce581a37c7fbd748057e9dc
Author: Gavin Guo gavin@canonical.com
Date: Fri Jul 18 01:12:13 2014 +0800
usb: Check if port status is equal to RxDetect
When using USB 3.0 pen drive
;
} while (cur_td != last_unlinked_td);
[end of code segment]
Beset Regards,
Lu Baolu
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More majordomo info at http://vger.kernel.org/majordomo-info.html
On 2014年11月24日 23:33, Alan Stern wrote:
On Mon, 24 Nov 2014, Lu, Baolu wrote:
Hi Mathias, Alan and all,
During xhci handling a completion event for stop endpoint command ,
xhci_handle_cmd_stop_ep() always gives back a urb with status set to 0.
The comment says,
/* Doesn't
On 2014年11月25日 21:11, George Cherian wrote:
Pass the quir flag XHCI_DRD_SUPPORT from DWC3 host to xhci platform driver.
quir to quirk
Regards,
Baolu
This enables xhci driver to handle deallocation's differently while in DRD mode.
Pass the quirk flag XHCI_NEEDS_LHC_RESET from DWC3 host to
Hi Devin,
Do you mind to post output of lspci -xv on the machine where you saw
this problem?
We are facing the same problems in other cases. I could provide a patch
for it later.
Thanks,
Baolu
On 01/19/2015 04:55 AM, Devin Heitmueller wrote:
Hello,
I'm debugging some issues on a couple
On 03/12/2015 04:46 PM, Mathias Nyman wrote:
On 12.03.2015 03:39, Lu Baolu wrote:
When a device with an isochronous endpoint is plugged into the Intel
xHCI host controller, and the driver submits multiple frames per URB,
the xHCI driver will set the Block Event Interrupt (BEI) flag on all
On 03/12/2015 03:54 PM, Greg Kroah-Hartman wrote:
On Thu, Mar 12, 2015 at 09:39:06AM +0800, Lu Baolu wrote:
When a device with an isochronous endpoint is plugged into the Intel
xHCI host controller, and the driver submits multiple frames per URB,
the xHCI driver will set the Block Event
to user.
This patch is to apply XHCI_AVOID_BEI quirk to Intel xHC devices. And
it should be backported to kernels as old as 3.0, that contains the
commit 69e848c2090a (Intel xhci: Support EHCI/xHCI port switching.).
Signed-off-by: Lu Baolu baolu...@linux.intel.com
Cc: sta...@vger.kernel.org
Hi Alan,
Do you have any comments for this patch?
Thanks,
Baolu
On 03/06/2015 04:12 PM, Lu Baolu wrote:
Linux xHCI driver doesn't report and handle port cofig error change.
If Port Configure Error for root hub port occurs, CEC bit in PORTSC
would be set by xHC and remains 1. This happends
On 03/11/2015 02:49 AM, Alan Stern wrote:
On Tue, 10 Mar 2015, Mathias Nyman wrote:
Mathias:
Your patch description says this:
The endpoint might already processesed some TRBs on the endpiont ring
before we soft reset the endpoint.
Make sure we set the dequeue pointer to where we were
to user.
This patch is to apply XHCI_AVOID_BEI quirk to Intel xHC devices. And
it should be backported to kernels as old as 3.0, that contains the
commit 69e848c2090a (Intel xhci: Support EHCI/xHCI port switching.).
Signed-off-by: Lu Baolu baolu...@linux.intel.com
Tested-by: Alistair Grant
On 03/05/2015 09:17 PM, Kenneth Johansson wrote:
On 2015-03-05 03:23, Lu, Baolu wrote:
Hi Kenneth Johansson,
Did you still get the bandwidth error when testing it with longer time?
no I have not seen it on any 3.19 kernel I have used so far. But It
could take a week to see it before so
Devin
On Tue, Mar 10, 2015 at 5:55 AM, Lu, Baolu baolu...@linux.intel.com wrote:
Hi Devin,
Do you mind to post output of lspci -xv on the machine where you saw this
problem?
We are facing the same problems in other cases. I could provide a patch for
it later.
Thanks,
Baolu
On 01/19/2015 04
. As the result, the xHC
looks like dead to user.
The patch is to apply XHCI_AVOID_BEI to Intel VallyView and Lynx Point
LP devices. And it should be backported to kernels as old as 3.0, that
contains the commit 69e848c2090a (Intel xhci: Support EHCI/xHCI port
switching.)
Signed-off-by: Lu Baolu baolu
.
so I guess I get it like 5 minutes after I send this ;)
On 2015-03-02 03:37, Lu, Baolu wrote:
Include Kenneth Johansson.
On 2015-03-02 10:33, Lu, Baolu wrote:
I tried to reproduce this issue on an Intel Ivybridge machine. But I
failed.
Kernel version: 4.0.0-rc1 (built against master branch
Hi Kenneth Johansson,
Did you still get the bandwidth error when testing it with longer time?
Thanks,
Baolu
On 2015-03-03 10:06, Lu, Baolu wrote:
cc'ed usb mailing list.
On 2015-03-02 21:23, Kenneth Johansson wrote:
I have been running 3.19 prereleases and now 3.19 and have not got
I tried to reproduce this issue on an Intel Ivybridge machine. But I failed.
Kernel version: 4.0.0-rc1 (built against master branch of Greg's usb tree)
USB fabric:
$ sudo lsusb -t
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/3p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub,
in
xhci_clear_port_change_bit().
[Mathias Nyman contributed the idea. The commit log is based on patch
posted at http://marc.info/?l=linux-kernelm=142323612321434w=2]
Signed-off-by: Lu Baolu baolu...@linux.intel.com
Cc: stable sta...@vger.kernel.org # v3.2+
---
drivers/usb/host/xhci-hub.c | 9 -
1 file
On 03/18/2015 08:40 PM, Heikki Krogerus wrote:
+
+/**
+ * ulpi_register_driver - unregister a driver with the ULPI bus
Hi Heikki,
ulpi_register_driver should be changed to ulpi_unregister_driver.
Thanks,
Baolu
+ * @drv: driver to unregister
+ *
+ * Unregisters a driver with the ULPI bus.
+
, it will ring doorbells for all endpoints
unconditionally. XHC may use these hints to optimize its operation
on endpoint state cashes.
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/host/xhci-hub.c | 2 +-
drivers/usb/host/xhci.c | 28
drivers/usb
the suspend. device_resume will be called when a USB device is just
resumed. It will ring doorbells of all endpoint unconditionally. XHC may
use these suspend/resume hints to optimize its operation.
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/host/xhci-hub.c | 2 +-
drivers
On 05/21/2015 03:33 PM, Heikki Krogerus wrote:
On Thu, May 21, 2015 at 01:40:43PM +0800, Lu Baolu wrote:
The intention of this change is to fix below kernel panic when
USB_ULPI_BUS was configured as buildin.
That is actually incorrect. Having the bus build-in does not cause
this panic
On 05/21/2015 05:22 AM, David Cohen wrote:
Hi,
On Wed, May 20, 2015 at 03:33:26PM -0400, Sasha Levin wrote:
ULPI registers it's bus at module_init so if the bus fails to register, the
A minor comment: s/it's/its/
module will fail to load and all will be well in the world.
However, if the
] kernel_init+0xe/0xf0
[0.935266] [81b0f442] ret_from_fork+0x42/0x70
[0.941315] [81affed0] ? rest_init+0x90/0x90
Reported-by: Zhuo Qiuxu qiuxu.z...@intel.com
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/common/ulpi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion
, which will panic the kernel.
Fix that by checking that the bus was indeed initialized before trying to
register drivers on top of it.
Signed-off-by: Sasha Levin sasha.le...@oracle.com
Signed-off-by: Heikki Krogerus heikki.kroge...@linux.intel.com
Signed-off-by: Lu Baolu baolu...@linux.intel.com
On 06/04/2015 08:17 PM, Heikki Krogerus wrote:
Hi Baolu,
On Thu, May 28, 2015 at 08:50:12AM +0800, Lu, Baolu wrote:
On 05/28/2015 12:53 AM, David Cohen wrote:
Hi,
On Tue, May 26, 2015 at 07:37:02PM -0700, Greg Kroah-Hartman wrote:
On Wed, May 27, 2015 at 09:45:37AM +0800, Lu Baolu wrote
On 06/06/2015 04:56 AM, Ralf Jung wrote:
Hi,
I got some untested and not yet reviewed usb3 resume race fixes from Zhuang Jin
Can
If you can try them out and see if they help it would be great.
They are sitting in a topic branch called xhci_usb3_pm_fixes in my tree:
(5 extra patches on top
On 06/25/2015 10:53 PM, Mathias Nyman wrote:
On 09.05.2015 04:15, Lu Baolu wrote:
There is no need to call xhci_stop_device() and xhci_ring_device() in
hub control and bus suspend functions since all device suspend and
resume have been notified through device_suspend/device_resume interfaces
On 06/12/2015 12:32 PM, Greg Kroah-Hartman wrote:
On Fri, Jun 12, 2015 at 09:29:37AM +0800, Lu Baolu wrote:
Commit 25cd2882e2fc (usb/xhci: Change how we indicate a host supports
Link PM.) removed the code to set lpm_capable for USB 3.0 super-speed
root hub. The intention of that change
...@vger.kernel.org # 3.15
Reported-by: Kevin Strasser kevin.stras...@linux.intel.com
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/core/hcd.c | 7 +--
drivers/usb/core/hub.c | 2 +-
drivers/usb/core/usb.h | 6 ++
3 files changed, 12 insertions(+), 3 deletions(-)
v1-v2
On 06/13/2015 01:43 AM, Alan Stern wrote:
On Fri, 12 Jun 2015, Lu Baolu wrote:
Commit 25cd2882e2fc (usb/xhci: Change how we indicate a host supports
Link PM.) removed the code to set lpm_capable for USB 3.0 super-speed
root hub. The intention of that change was to avoid touching usb core
...@vger.kernel.org # 3.15
Reported-by: Kevin Strasser kevin.stras...@linux.intel.com
Signed-off-by: Lu Baolu baolu...@linux.intel.com
Acked-by: Alan Stern st...@rowland.harvard.edu
---
drivers/usb/core/hcd.c | 7 +--
drivers/usb/core/hub.c | 2 +-
drivers/usb/core/usb.h | 1 +
3 files changed, 7
...@vger.kernel.org # 3.15
Reported-by: Kevin Strasser kevin.stras...@linux.intel.com
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/core/hcd.c | 6 ++
drivers/usb/core/hub.c | 2 +-
drivers/usb/core/usb.h | 1 +
3 files changed, 8 insertions(+), 1 deletion(-)
diff --git
...@vger.kernel.org # 3.15
Reported-by: Kevin Strasser kevin.stras...@linux.intel.com
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/core/hcd.c | 7 +--
drivers/usb/core/hub.c | 2 +-
drivers/usb/core/usb.h | 1 +
3 files changed, 7 insertions(+), 3 deletions(-)
v1-v2 change
On 06/13/2015 11:00 PM, Alan Stern wrote:
On Sat, 13 Jun 2015, Lu Baolu wrote:
Commit 25cd2882e2fc (usb/xhci: Change how we indicate a host supports
Link PM.) removed the code to set lpm_capable for USB 3.0 super-speed
root hub. The intention of that change was to avoid touching usb core
.
Reported-by: Zhuo Qiuxu qiuxu.z...@intel.com
Signed-off-by: Lu Baolu baolu...@linux.intel.com
Acked-by: Heikki Krogerus heikki.kroge...@linux.intel.com
---
drivers/usb/common/ulpi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
v0-v5 change log:
Various changes in the commit description.
diff
On 05/26/2015 10:50 PM, Felipe Balbi wrote:
Hi,
On Mon, May 25, 2015 at 02:24:00PM +0800, Lu, Baolu wrote:
On 05/23/2015 12:08 AM, David Cohen wrote:
Hi,
On Fri, May 22, 2015 at 07:29:15PM +0800, Lu Baolu wrote:
Phy drivers and the ulpi interface providers depend on the
registeration
Phy drivers and the ulpi interface providers depend on the
registration of the ulpi bus. Ulpi registers the bus in
module_init(). This could cause unnecessary probe delays.
Reported-by: Zhuo Qiuxu qiuxu.z...@intel.com
Signed-off-by: Lu Baolu baolu...@linux.intel.com
Acked-by: Heikki Krogerus
On 05/28/2015 12:53 AM, David Cohen wrote:
Hi,
On Tue, May 26, 2015 at 07:37:02PM -0700, Greg Kroah-Hartman wrote:
On Wed, May 27, 2015 at 09:45:37AM +0800, Lu Baolu wrote:
Phy drivers and the ulpi interface providers depend on the
registration of the ulpi bus. Ulpi registers the bus
On 05/22/2015 11:11 AM, David Cohen wrote:
On Thu, May 21, 2015 at 08:09:54PM -0700, David Cohen wrote:
Hi,
On Fri, May 22, 2015 at 10:07:05AM +0800, Lu Baolu wrote:
Many drivers and modules depend on ULPI bus registeration to
register ULPI interfaces and drivers. It's more appropriate
On 05/22/2015 02:46 PM, Lu, Baolu wrote:
On 05/22/2015 11:11 AM, David Cohen wrote:
On Thu, May 21, 2015 at 08:09:54PM -0700, David Cohen wrote:
Hi,
On Fri, May 22, 2015 at 10:07:05AM +0800, Lu Baolu wrote:
Many drivers and modules depend on ULPI bus registeration to
register ULPI
On 05/23/2015 12:08 AM, David Cohen wrote:
Hi,
On Fri, May 22, 2015 at 07:29:15PM +0800, Lu Baolu wrote:
Phy drivers and the ulpi interface providers depend on the
registeration of the ulpi bus. Ulpi registers the bus in
module_init(). This could result in a load order issue, i.e.
It's
On 05/23/2015 10:00 PM, Donald Harter wrote:
May 23 08:52:05 pc_u kernel: [53875.075976] xhci_hcd :00:14.0:
Port Status Change Event for port 3
May 23 08:52:05 pc_u kernel: [53875.075979] xhci_hcd :00:14.0:
port resume event for port 3
May 23 08:52:05 pc_u kernel: [53875.075981]
bU2DevExitLat 512 micro seconds
Device Status: 0x0001
Self Powered
On 05/25/2015 05:34 AM, Lu, Baolu wrote:
On 05/23/2015 10:00 PM, Donald Harter wrote:
May 23 08:52:05 pc_u kernel: [53875.075976] xhci_hcd :00:14.0:
Port Status Change Event for port 3
May 23 08:52:05 pc_u
Hi Heikki, Sasha and others,
Please ignore this patch. I should not squash these two patches into one and
sign it off behalf of other people. I apologize for this and I'm sorry
if this lets
you feel affronted.
Thanks,
Baolu
On 05/21/2015 04:57 PM, Lu Baolu wrote:
ULPI registers its bus
of kernel panic by putting ulpi_init in
subsys_initcall().
Reported-by: Zhuo Qiuxu qiuxu.z...@intel.com
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/common/ulpi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common
issue by putting ulpi_init
in subsys_initcall().
Reported-by: Zhuo Qiuxu qiuxu.z...@intel.com
Signed-off-by: Lu Baolu baolu...@linux.intel.com
---
drivers/usb/common/ulpi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c
On 10/29/2015 08:51 PM, Sergei Shtylyov wrote:
Hello.
On 10/29/2015 5:46 AM, Lu Baolu wrote:
Function ep_ring_is_processing() checks the dequeue pointer
in endpoint context to know whether an endpoint is busy with
processing TRBs. This is not correct since dequeue pointer
field
audio
noise when playing sound with USB headset connected to host
controllers which support CFC (one of xhci 1.1 features).
This patch should exist in stable kernel since v4.3.
Reported-and-tested-by: YD Tseng <yd_ts...@asmedia.com.tw>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
On 10/29/2015 10:08 PM, Mathias Nyman wrote:
On 29.10.2015 14:58, Lu, Baolu wrote:
On 10/29/2015 08:51 PM, Sergei Shtylyov wrote:
Hello.
On 10/29/2015 5:46 AM, Lu Baolu wrote:
Function ep_ring_is_processing() checks the dequeue pointer
in endpoint context to know whether an endpoint
audio
noise when playing sound with USB headset connected to host
controllers which support CFC (one of xhci 1.1 features).
This patch should exist in stable kernel since v4.3.
Reported-and-tested-by: YD Tseng <yd_ts...@asmedia.com.tw>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/early/xhci-dbc.c | 36
1 file changed, 36 insertions(+)
diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c
index 8a5a51f..aaf655f 100644
--- a/drivers/usb/early/xhci
Add Documentation/usb/xhci-dbc.txt. This document includes
development status and usage guide for USB3 debug port.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
Documentation/usb/xhci-dbc.txt | 325 +
MAINTAINERS
This patch add dbc debug device support in usb_debug driver.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/serial/usb_debug.c | 29 ++---
1 file changed, 26 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/serial/usb_debug.c b/drive
between the
debug host and target.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
MAINTAINERS | 7 +
arch/x86/Kconfig.debug | 12 +
drivers/usb/early/Makefile | 1 +
drivers/usb/early/xhci-dbc.c | 787 +++
include/lin
DBC_DEBUG is defined.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/early/xhci-dbc.c | 62 ++--
1 file changed, 60 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c
index
This patch adds interfaces for bulk out and bulk in ops. These
interfaces could be used to implement early printk bootconsole
or hook to various system debuggers.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/early/xhci-dbc.c
a port reset to the
debug port from the host xHCI. This patch introduces this work
around.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/early/xhci-dbc.c | 52
include/linux/usb/xhci-dbc.h | 2 ++
2 files changed, 54 inse
DbC might exit configured state in some cases (refer to 7.6.4.4 in
xHCI spec 1.1). Software needs detect and clear this situation by
clearing DCCTRL.DCR and wait until the DbC configured before read
or write oprations.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/earl
Add support for early printk by writing debug messages to the USB3
debug port. Users can use this type of early printk by specifying
kernel parameter of "earlyprintk=xdbc". This gives users a chance
of providing debug output.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
--
' in the tty application.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/early/xhci-dbc.c | 27 +++
1 file changed, 27 insertions(+)
diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c
index 68a7139..b75c523 100644
--- a/drivers/usb
this.
This patch exposes extended capabilities supported by the xHCI host
via debugfs.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci-dbg.c | 212 +++
drivers/usb/host/xhci-ext-caps.h | 9 +-
drivers/usb/host/xhci.c
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