as
the second argument.
[3/3] ACPI / bind: Move acpi_get_child() to ide-acpi.c which is the only
remaining
user of that function.
Test usb/ACPI bind part, it works normally.
Tested-by: Lan Tianyu tianyu@intel.com
The patches are on top of linux-pm.git/linux-next. Please let me
On 2013/5/31 19:18 Greg KH wrote the following:
On Fri, May 31, 2013 at 02:18:06PM +0800, Lan Tianyu wrote:
This patch is to add a check of portnum which from the usb
port dev's name.
Why do we need this now?
The portnum will be used as array index
for struct usb_hub-ports
This patch is to add a check of portnum which from the usb
port dev's name. The portnum will be used as array index
for struct usb_hub-ports in the usb_set_hub_port_connect_type().
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/usb-acpi.c |3 +++
1 file changed, 3
On 2013/3/30 4:24, Alan Stern wrote:
On Fri, 29 Mar 2013, Sarah Sharp wrote:
Also, bear in mind that the proposed patch does not give userspace a
way to power off ports via usbfs. What the new code does is a
power-off reset -- it turns off power to the port, waits a short time,
and then turns
On 2013/4/1 23:12, Alan Stern wrote:
On Mon, 1 Apr 2013, Lan Tianyu wrote:
On 2013年03月30日 01:23, Alan Stern wrote:
On Fri, 29 Mar 2013, Sarah Sharp wrote:
However, what happens if you echo 0 to pm_qos_no_power_off, the
power/control is set to auto, and there's a suspended USB device
attached
On 2013年03月29日 22:11, Alan Stern wrote:
On Fri, 29 Mar 2013, Lan Tianyu wrote:
Actually, I exposed pm qos flags for usb port via dev_pm_qos_expose_flags().
It creates power/pm_qos_no_power_off under usb port sysfs directory.
User can echo 0 pm_qos_no_power_off to power off the empty port
On 2013年03月30日 01:23, Alan Stern wrote:
On Fri, 29 Mar 2013, Sarah Sharp wrote:
However, what happens if you echo 0 to pm_qos_no_power_off, the
power/control is set to auto, and there's a suspended USB device
attached to the port with remote wakeup enabled? Will the port be
powered off? I
On 2013/3/29 6:43, Sarah Sharp wrote:
On Thu, Mar 28, 2013 at 05:00:23PM -0400, Alan Stern wrote:
On Thu, 28 Mar 2013, Sarah Sharp wrote:
On Thu, Mar 28, 2013 at 01:11:02AM +0800, Lan Tianyu wrote:
Some devices' firmware will be broken at some points. Power down
and power on device can help
On 2013/3/28 2:45, Alan Stern wrote:
+int usb_hub_port_power_reset(struct usb_device *hdev, int port1)
+{
+ struct usb_hub *hub = usb_hub_to_struct_hub(hdev);
+ struct usb_interface *intf = to_usb_interface(hub-intfdev);
+ int ret;
+
+ usb_autopm_get_interface(intf);
On 2013/3/28 22:46, Alan Stern wrote:
On Thu, 28 Mar 2013, Lan Tianyu wrote:
How long do you think the power should remain turned off? This code
will leave it off for only a few milliseconds at most. That may not
even be long enough for the voltage to drop all the way to 0.
The delay
On 2013/3/29 0:50, Alan Stern wrote:
On Fri, 29 Mar 2013, Lan Tianyu wrote:
About the path usb: Add usb port system pm support, do you think it's
ok?
Generally yes. But why doesn't usb_port_system_suspend check for any
PM_QOS constraints? Either on the port itself or on the child device
On 2013/3/29 1:49, Alan Stern wrote:
On Fri, 29 Mar 2013, Lan Tianyu wrote:
On 2013/3/29 0:50, Alan Stern wrote:
On Fri, 29 Mar 2013, Lan Tianyu wrote:
About the path usb: Add usb port system pm support, do you think it's
ok?
Generally yes. But why doesn't usb_port_system_suspend check
On 2013/3/29 2:21, Greg KH wrote:
What does it look like if you reverse the naming scheme (hub dev name +
port)? Doesn't that show the devices in a bit more logical way?
Hi Greg:
Do you mean e.g port1.2-1, originally it's port2-1.1.
2-1 is hub dev name?
No, I mean 2-1.port1 as these
On 2013/3/29 2:44, Alan Stern wrote:
On Thu, 28 Mar 2013, Greg KH wrote:
ls /sys/bus/usb/devices
1-0:1.02-0:1.0 port1-1 port1-1.3 port2-1.2 port2-2 port4-3
1-12-1 port1-1.1port1-1.4 port2-1.3 port3-1 port4-4
1-1.1 2-1:1.0 port1-1.2port1-1.5 port2-1.4
On 2013/3/29 2:53, Greg KH wrote:
On Thu, Mar 28, 2013 at 02:44:01PM -0400, Alan Stern wrote:
On Thu, 28 Mar 2013, Greg KH wrote:
ls /sys/bus/usb/devices
1-0:1.02-0:1.0 port1-1 port1-1.3 port2-1.2 port2-2 port4-3
1-12-1 port1-1.1port1-1.4 port2-1.3 port3-1
On 2013/3/29 3:38, Alan Stern wrote:
On Fri, 29 Mar 2013, Lan Tianyu wrote:
Ok. I just refresh patch usb: introduce usb force power off mechanism
Please have a look.
From 16f5c7c6dd00830530a9ac758af25b575e0b8731 Mon Sep 17 00:00:00 2001
From: Lan Tianyu tianyu@intel.com
Date: Tue, 26
On 2013/3/29 4:47, Sarah Sharp wrote:
On Thu, Mar 28, 2013 at 07:58:47AM +0800, Lan Tianyu wrote:
On 2013/3/28 2:47, Alan Stern wrote:
On Thu, 28 Mar 2013, Lan Tianyu wrote
What happens if there's no device plugged in to the port, but the hub
is enabled for remote wakeup? How will the hub
PATCH 1 is for code clean up.
PATCH 2~3 is to introduce usb port power off new feature
PATCH 4 is to fix usb port doesn't register to any bus_type
usb: add usb_enable/disable_remote_wakeup()
usb: introduce usb force power off mechanism
usb: Add usb port system pm support
usb: register usb port
be convienient
to use and more readable.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/hub.c | 136
1 file changed, 68 insertions(+), 68 deletions(-)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 7815462
-power_is_on being false, usb_port_system_suspend()
returns directly.
If usb port was not powered off during system suspend with
port_dev-power_is_on being true, usb_port_system_resume()
returns directly.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/hub.c |4
drivers
port3-4 usb3
1-1.2 3-1:1.0 port1-1.2.3 port2-1port2-1.7 port4-1 usb4
1-1.2:1.0 4-0:1.0 port1-1.2.4 port2-1.1 port2-1.8 port4-2
Signed-off-by: Lan Tianyu tianyu@intel.com
---
Documentation/ABI/testing/sysfs-bus-usb |6 +++---
drivers/usb/core/port.c | 10
and up usb port.
This patch is also helpful fo some QAs who want to do hcd's memleak
test(Plug and unplug device thousand times.)
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/devio.c | 13 +
drivers/usb/core/hub.c| 16
Regards
Tianyu Lan
-Original Message-
From: Lan, Tianyu
Sent: Thursday, March 28, 2013 1:11 AM
To: gre...@linuxfoundation.org; sarah.a.sh...@linux.intel.com;
st...@rowland.harvard.edu
Cc: linux-usb@vger.kernel.org; Lan, Tianyu
Subject: [PATCH 2/4] usb: introduce usb force power off mechanism
On 2013/3/28 2:47, Alan Stern wrote:
On Thu, 28 Mar 2013, Lan Tianyu wrote
What happens if there's no device plugged in to the port, but the hub
is enabled for remote wakeup? How will the hub be able to detect a
plug-in event if the port isn't powered?
Alan Stern
Hi Alan:
Great
have a patch that can work and it still needs to add some condition
checks in the usb_port_system_suspend(). Dev's system wakeup disable
and persist enable.
From c3abd373707910672d6fd2e96da78879b3e22417 Mon Sep 17 00:00:00 2001
From: Lan Tianyu tianyu@intel.com
Date: Tue, 26 Feb 2013 11:12:09
port3-4 usb3
1-1.2 3-1:1.0 port1-1.2.3 port2-1port2-1.7 port4-1 usb4
1-1.2:1.0 4-0:1.0 port1-1.2.4 port2-1.1 port2-1.8 port4-2
Signed-off-by: Lan Tianyu tianyu@intel.com
---
Documentation/ABI/testing/sysfs-bus-usb |6 +++---
drivers/usb/core/port.c | 10
On 2013年03月21日 02:28, Sarah Sharp wrote:
On Wed, Mar 20, 2013 at 10:18:03AM +0800, Lan Tianyu wrote:
On 2013年03月20日 03:06, Sarah Sharp wrote:
Ok, this looks sane, and our Intel testers report it doesn't oops like
v2. The patch description on the first patch is better as well.
Tianyu, I know
be convienient
to use and more readable.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/hub.c | 136
1 file changed, 68 insertions(+), 68 deletions(-)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 5480352
.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
This patchset is based on usb-next tree commit 3f3b55bf
usb: ehci-s5p: Use devm for requesting ehci_vbus_gpio.
Change since v1:
Don't export usb_hcd_find_raw_port_number() symbol since there is no
its user outside of usb core.
Change since v2
extended capabilities table before binding.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
Change since v3:
add a temprorary variable to recard raw port num and get ACPI
handle rahter than overwrite port num with raw port num. This is
to avoid passing raw port num as port num
binding with USB-3.0
hub. I'd like to take the job if I could do.
BTW, the sysfs files to turn on and off ports has been reverted by Greg
in v3.7.
Sarah Sharp
On Tue, Mar 19, 2013 at 04:48:13PM +0800, Lan Tianyu wrote:
This patch is to bind xhci root hub usb port with its acpi node.
The port
2013/2/26 Alan Stern st...@rowland.harvard.edu:
Sarah (and anyone else who's interested):
A while ago I wrote about a hardware bug in my Intel ICH5 and ICH8 EHCI
controllers. You pointed out that these are rather old components, not
being used in current systems, which is quite true.
Now I
On 2013年02月28日 15:57, Li Fei wrote:
Even in failed case of pm_runtime_get_sync, the usage_count
is incremented. In order to keep the usage_count with correct
value and runtime power management to behave correctly, call
pm_runtime_put(_sync) in such case.
Hi Fei:
It's not necessary.
have the original creator of that code
(someone else from Intel, I can't remember at the moment), fix that up
properly and send me patches?
[Add To: Lan Tianyu tianyu@intel.com]
Ok. I will fix it later.
Please let me know if there are any objections.
I still prefer to ask USB to add
, which
I think is pretty major. I suspect it has something to do with this ?
Lan Tianyu (12):
usb: add runtime pm support for usb port device
usb: add usb port auto power off mechanism
It looks like every port on my laptop is powered down, as I can't
even charge devices
On 2013/2/23 0:43, Dave Jones wrote:
On Fri, Feb 22, 2013 at 05:51:10PM +0800, Lan Tianyu wrote:
Nothing major, lots of gadget fixes, and of course, xhci stuff.
I get no USB devices recognised when I insert them any more, which
I think is pretty major. I suspect it has
On 2013/2/23 1:14, Dave Jones wrote:
On Sat, Feb 23, 2013 at 01:02:11AM +0800, Lan Tianyu wrote:
What can I do to debug this ?
Can you attach the output of dmesg with CONFIG_USB_DEBUG?
http://paste.fedoraproject.org/3620
How aboutsudo lsusb -s 1:1 -v or 2:1?
(12
i686 i386 GNU/Linux.
I try the same operation to produce the issue, and it also fails.
Please attach the output of dmesg with CONFIG_USB_DEBUG and XHCI_DEBUG.
Thanks,
Soar
-Original Message-
From: Lan Tianyu [mailto:lantianyu1...@gmail.com]
Sent: Friday, February 08, 2013 12:57 AM
2013/2/4 Soar Hung soarh...@realtek.com:
Hi Alan, Sarah,
Thank you for your kindly help.
Can I do something to provide some help?
You found the issue on the 3.0.30+ kernel. Can you test
it on the usb-next branch of usb tree? Sarah has
fixed a lot of bugs since v3.0.
Best regards,
Soar
, and test again?
I think you can git clone
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git and git checkout
usb-next.
Compile kernel and test it.
Best regards,
Soar
-Original Message-
From: Lan Tianyu [mailto:lantianyu1...@gmail.com]
Sent: Thursday, February 07, 2013 4:18 PM
. Will
send a new patch with new routines after 3.9 merge window.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/port.c |6 --
drivers/usb/core/usb-acpi.c | 18 --
drivers/usb/core/usb.h |6 --
3 files changed, 30 deletions(-)
diff --git
On 2013年01月25日 08:52, Sarah Sharp wrote:
Please combine this patch with patch three, so that I can clearly see
what is being replaced in xhci-mem.c:xhci_find_real_port_number.
Ok, I will refresh it soon.
Sarah Sharp
On Sat, Jan 19, 2013 at 12:43:32AM +0800, Lan Tianyu wrote:
xhci driver
of scanning through the xHCI roothub port array in
the xhci_find_real_port_number().
Signed-off-by: Lan Tianyu tianyu@intel.com
---
Change since v1:
Don't export usb_hcd_find_raw_port_number() symbol since there is no
its user outside of usb core.
Change since v2:
combine patch usb
extended capabilities table before binding.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/usb-acpi.c |4
1 file changed, 4 insertions(+)
diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c
index cef4252..40f5a6a 100644
--- a/drivers/usb/core/usb
by the SetFeature()
requests using the FUNCTION_SUSPEND feature selector. This patch is to use
correct way to disable usb3.0 device's function remote wakeup after suspend
error and resuming.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
This patchset is based on the usb-next tree commit d2123fd:
USB: Set
be convienient
to use and more readable.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
Change since v1:
remove usb_disable_function_remotewakeup() and
call usb_control_msg() directly in the usb_disable_remote_wakeup()
drivers/usb/core/hub.c | 136
On 2013/1/22 5:31, Greg KH wrote:
On Mon, Jan 21, 2013 at 10:18:05PM +0800, Lan Tianyu wrote:
This patch is to expose usb port's pm qos flags(pm_qos_no_power_off,
pm_qos_remote_wakeup) to user space. User can set pm_qos_no_power_off
flag to prohibit the port from being powered off.
How
On 2013/1/22 5:33, Greg KH wrote:
On Mon, Jan 21, 2013 at 10:18:06PM +0800, Lan Tianyu wrote:
Some usb devices can't be resumed correctly after power off. This
patch is to add usb_device_allow_power_off() and usb_device_prevent_power_off()
for device's driver. Call pm_runtime_get_sync(portdev
On 2013/1/22 5:33, Greg KH wrote:
On Mon, Jan 21, 2013 at 10:18:06PM +0800, Lan Tianyu wrote:
Some usb devices can't be resumed correctly after power off. This
patch is to add usb_device_allow_power_off() and usb_device_prevent_power_off()
for device's driver. Call pm_runtime_get_sync(portdev
On 2013/1/22 5:34, Greg KH wrote:
On Mon, Jan 21, 2013 at 10:18:07PM +0800, Lan Tianyu wrote:
Signed-off-by: Lan Tianyu tianyu@intel.com
Why are you doing this? Why is it now ok?
We need a much better changelog entry here.
Ok. I will add later.
thanks,
greg k-h
--
Best Regards
On 2013/1/22 5:30, Greg KH wrote:
On Mon, Jan 21, 2013 at 10:18:04PM +0800, Lan Tianyu wrote:
This patch is to add usb port auto power off mechanism.
When usb device is suspending, usb core will suspend usb port and
usb port runtime pm callback will clear PORT_POWER feature to
power off port
On 2013/1/22 23:05, Greg KH wrote:
On Tue, Jan 22, 2013 at 10:23:12PM +0800, Lan Tianyu wrote:
On 2013/1/22 5:33, Greg KH wrote:
On Mon, Jan 21, 2013 at 10:18:06PM +0800, Lan Tianyu wrote:
Some usb devices can't be resumed correctly after power off. This
patch is to add
On 2013/1/23 0:02, Greg KH wrote:
On Tue, Jan 22, 2013 at 11:32:13PM +0800, Lan Tianyu wrote:
On 2013/1/22 5:30, Greg KH wrote:
On Mon, Jan 21, 2013 at 10:18:04PM +0800, Lan Tianyu wrote:
@@ -127,7 +128,7 @@ static inline char *portspeed(struct usb_hub *hub, int
portstatus)
}
/* Note
On 2013/1/23 1:18, Greg KH wrote:
On Wed, Jan 23, 2013 at 12:58:09AM +0800, Lan Tianyu wrote
The above line, as written is under 80 characters, so I don't understand
the issue.
If I do following, scripts/checkpatch.pl will complain over 80 characters.
@@ -3767,7 +3814,9
Change since v1:
optimize the export connect type patch and adjust the DeviceRemovalbe
flag
in the rh_call_control() after GetHubDescriptor request being processed.
move all debounce operation to usb port's runtime resume callback(). Add
did_runtime_put in the struct usb_port to
This patch is to register usb port's acpi power resources. Create
link between usb port device and its acpi power resource.
Acked-by: Alan Stern st...@rowland.harvard.edu
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/port.c |5 +
drivers/usb/core/usb-acpi.c
The dev_pm_qos_flags() will be used in the usb core which could be
compiled as a module. This patch is to export it.
Acked-by: Alan Stern st...@rowland.harvard.edu
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/base/power/qos.c |1 +
1 file changed, 1 insertion(+)
diff --git
it is active.
Acked-by: Alan Stern st...@rowland.harvard.edu
Acked-by: Rafael J. Wysocki rafael.j.wyso...@intel.com
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/hub.c | 27 +++
drivers/usb/core/hub.h |4
drivers/usb/core/port.c | 46
This patch is to expose usb port's pm qos flags(pm_qos_no_power_off,
pm_qos_remote_wakeup) to user space. User can set pm_qos_no_power_off
flag to prohibit the port from being powered off.
Acked-by: Alan Stern st...@rowland.harvard.edu
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers
suspend/resume thread wait for their asynchronous children
(during suspend) or parents (during resume), effectively negating the
possible gains from executing these devices' suspend and resume
callbacks asynchronously.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/port.c |1
off and powered on.
Acked-by: Alan Stern st...@rowland.harvard.edu
Acked-by: Rafael J. Wysocki rafael.j.wyso...@intel.com
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/hub.c | 161 ++-
drivers/usb/core/hub.h | 21
Change since v1:
optimize the export connect type patch and adjust the DeviceRemovalbe
flag
in the rh_call_control() after GetHubDescriptor request being processed.
move all debounce operation to usb port's runtime resume callback(). Add
did_runtime_put in the struct usb_port to
ACPI information and this
also works
for non-root hub.
Acked-by: Alan Stern st...@rowland.harvard.edu
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/hcd.c |4
drivers/usb/core/hub.c | 43 +++
drivers/usb/core/usb.h |3
This patch is to register usb port's acpi power resources. Create
link between usb port device and its acpi power resource.
Acked-by: Alan Stern st...@rowland.harvard.edu
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/port.c |3 +++
drivers/usb/core/usb-acpi.c | 20
The dev_pm_qos_flags() will be used in the usb core which could be
compiled as a module. This patch is to export it.
Acked-by: Alan Stern st...@rowland.harvard.edu
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/base/power/qos.c |1 +
1 file changed, 1 insertion(+)
diff --git
it is active.
Acked-by: Alan Stern st...@rowland.harvard.edu
Acked-by: Rafael J. Wysocki rafael.j.wyso...@intel.com
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/hub.c | 18 ++
drivers/usb/core/hub.h |4
drivers/usb/core/port.c | 45
This patch is to expose usb port's pm qos flags(pm_qos_no_power_off,
pm_qos_remote_wakeup) to user space. User can set pm_qos_no_power_off
flag to prohibit the port from being powered off.
Acked-by: Alan Stern st...@rowland.harvard.edu
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/port.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
index 0334d91..50b646e 100644
--- a/drivers/usb/core/port.c
+++ b/drivers/usb/core/port.c
@@ -215,7
Hi Greg:
Great thanks for your review. I learn a lot from your comments which I
have not noticed before.
On 2013年01月22日 05:20, Greg KH wrote:
On Mon, Jan 21, 2013 at 10:18:01PM +0800, Lan Tianyu wrote:
This patch is to register usb port's acpi power resources. Create
link between usb
On 2013年01月22日 05:24, Greg KH wrote:
On Mon, Jan 21, 2013 at 10:18:03PM +0800, Lan Tianyu wrote:
This patch is to add runtime pm callback for usb port device.
Set/clear PORT_POWER feature in the resume/suspend callbak.
Add portnum for struct usb_port to record port number. Do
2013/1/21 Greg KH gre...@linuxfoundation.org
On Sun, Jan 20, 2013 at 01:53:29AM +0800, Lan Tianyu wrote:
Change since v5:
use EXPORT_SYMBOL_GPL to export dev_pm_qos_flags().
correct some unnecessary link breaks.
Add CONFIG_USB_SUSPEND check around
treated as errors
Reported-by: Fengguang Wu w...@linux.intel.com
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/port.c |2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
index 2bc1cef..3734850 100644
--- a/drivers/usb/core
Change since v1:
optimize the export connect type patch and adjust the DeviceRemovalbe
flag
in the rh_call_control() after GetHubDescriptor request being processed.
move all debounce operation to usb port's runtime resume callback(). Add
did_runtime_put in the struct usb_port to
The dev_pm_qos_flags() will be used in the usb core which could be
compiled as a module. This patch is to export it.
Acked-by: Alan Stern st...@rowland.harvard.edu
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/base/power/qos.c |1 +
1 file changed, 1 insertion(+)
diff --git
ACPI information and this
also works
for non-root hub.
Acked-by: Alan Stern st...@rowland.harvard.edu
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/hcd.c |4
drivers/usb/core/hub.c | 43 +++
drivers/usb/core/usb.h |3
Some platforms provide usb port connect types through ACPI. This
patch is to add this new attribute to expose these information
to user space.
Acked-by: Alan Stern st...@rowland.harvard.edu
Signed-off-by: Lan Tianyu tianyu@intel.com
---
Documentation/ABI/testing/sysfs-bus-usb |9
To show the relationship between usb port and child device,
add link file port under usb device's sysfs directoy and
device under usb port device's sysfs directory. They are linked
to each other.
Acked-by: Alan Stern st...@rowland.harvard.edu
Signed-off-by: Lan Tianyu tianyu@intel.com
This patch is to register usb port's acpi power resources. Create
link between usb port device and its acpi power resource.
Acked-by: Alan Stern st...@rowland.harvard.edu
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/port.c |3 +++
drivers/usb/core/usb-acpi.c | 20
-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/hub.c | 67 ---
drivers/usb/core/hub.h |9 +++
drivers/usb/core/port.c | 40 ++--
3 files changed, 105 insertions(+), 11 deletions(-)
diff --git a/drivers
This patch is to expose usb port's pm qos flags(pm_qos_no_power_off,
pm_qos_remote_wakeup) to user space. User can set pm_qos_no_power_off
flag to prohibit the port from being powered off.
Acked-by: Alan Stern st...@rowland.harvard.edu
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers
will not be powered off.
Acked-by: Alan Stern st...@rowland.harvard.edu
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/port.c | 28
1 file changed, 28 insertions(+)
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
index 0c51d24..0334d91 100644
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/port.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
index 0334d91..50b646e 100644
--- a/drivers/usb/core/port.c
+++ b/drivers/usb/core/port.c
@@ -215,7
On 2013年01月16日 23:45, Alan Stern wrote:
On Tue, 15 Jan 2013, Lan Tianyu wrote:
Hi GregAlan:
Do you have some more comments about this patchset? Thanks.
I don't have any more comments at this point. It looks okay to me.
Acked-by: Alan Stern st...@rowland.harvard.edu
By the way
by the SetFeature()
requests using the FUNCTION_SUSPEND feature selector. This patch is to use
correct way to disable usb3.0 device's function remote wakeup after suspend
error and resuming.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
This patch is rebased on the usb-linus branch commit 1ee0a224bc9aa
USB
port number which is reflected in the xhci
extended capabilities table. This patch is to add find_raw_port_number
callback to struct hc_driver() and fill it with xhci_find_raw_port_number().
Signed-off-by: Lan Tianyu tianyu@intel.com
---
Change since v1:
Don't export
extended capabilities table before binding.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/usb-acpi.c |4
1 file changed, 4 insertions(+)
diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c
index cef4252..40f5a6a 100644
--- a/drivers/usb/core/usb
This patch is to optimize xhci_find_realport_number(). Call
xhci_find_raw_port_number() to get real index in the HW port
status registers instead of scanning through the xHCI roothub
port array.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/host/xhci-mem.c | 36
.
Best Regards
Tianyu Lan
-Original Message-
From: Alan Stern [mailto:st...@rowland.harvard.edu]
Sent: Saturday, January 19, 2013 12:21 AM
To: Lan, Tianyu
Cc: r...@sisk.pl; gre...@linuxfoundation.org; sarah.a.sh...@linux.intel.com;
oneu...@suse.de; linux-usb@vger.kernel.org
Subject: Re
by the SetFeature()
requests using the FUNCTION_SUSPEND feature selector. This patch is to use
correct way to disable usb3.0 device's function remote wakeup after suspend
error and resuming.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/hub.c | 71
On 2013年01月11日 20:10, Lan Tianyu wrote:
Change since v1:
optimize the export connect type patch and adjust the DeviceRemovalbe
flag
in the rh_call_control() after GetHubDescriptor request being processed.
move all debounce operation to usb port's runtime resume callback
On 2013年1月12日 15:48:59, Alex Riesen wrote:
On Fri, Jan 11, 2013 at 10:04 PM, Alex Riesen raa.l...@gmail.com wrote:
Hi,
the USB stick (an Cruzer Titanium 2GB) was not recognized at any of
the USB ports of this system (an System76 lemu4 laptop, XHCI device)
after it was removed. If I attempt to
Change since v1:
optimize the export connect type patch and adjust the DeviceRemovalbe
flag
in the rh_call_control() after GetHubDescriptor request being processed.
move all debounce operation to usb port's runtime resume callback(). Add
did_runtime_put in the struct usb_port to
The dev_pm_qos_flags() will be used in the usb core which could be
compiled as a module. This patch is to export it.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/base/power/qos.c |1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/base/power/qos.c b/drivers/base/power
This patch is to create driver/usb/core/(port.c,hub.h) files and move usb
port related code into port.c.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/Makefile |1 +
drivers/usb/core/hub.c| 107 +
drivers/usb/core/hub.h
Some platforms provide usb port connect types through ACPI. This
patch is to add this new attribute to expose these information
to user space.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
Documentation/ABI/testing/sysfs-bus-usb |9 +++
drivers/usb/core/port.c | 43
To show the relationship between usb port and child device,
add link file port under usb device's sysfs directoy and
device under usb port device's sysfs directory. They are linked
to each other.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/hub.c | 26
ACPI information and this
also works
for non-root hub.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/hcd.c |4
drivers/usb/core/hub.c | 48
drivers/usb/core/usb.h |3 +++
3 files changed, 55 insertions(+)
diff
This patch is to register usb port's acpi power resources. Create
link between usb port device and its acpi power resource.
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/port.c |3 +++
drivers/usb/core/usb-acpi.c | 20
drivers/usb/core/usb.h
it is active.
Acked-by: Rafael J. Wysocki rafael.j.wyso...@intel.com
Signed-off-by: Lan Tianyu tianyu@intel.com
---
drivers/usb/core/hub.c | 18 ++
drivers/usb/core/hub.h |4
drivers/usb/core/port.c | 43 +++
3 files changed, 65
clear and persist
enable. When it resumes, power on port again. Add did_runtime_put
in the struct usb_port in order to call pm_runtime_get/put(portdev)
paired during suspending and resuming.
Acked-by: Rafael J. Wysocki rafael.j.wyso...@intel.com
Signed-off-by: Lan Tianyu tianyu@intel.com
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