*ping*
Is anyone still reading this or should I resubmit? Sorry for being
annoying, just please let me know if this is already considered to get
picked up at the next opportunity or if you've intentionally decided
against it for now. I want to make sure it didn't fall through the
cracks
*bump*
Hi Sarah, is there anything else that needs to be resolved to pick
this patch up? Looks like Matthias' recent LPM fixes are all in now so
there should be no way this could cause any trouble?
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On Wed, Aug 28, 2013 at 04:08:12PM -0700, Julius Werner wrote:
So the 2.41a has BESL support, but may not set the BLC flag. What
happens if we use the HIRD encoding instead? Will things break? It
seems like we would need to disable USB 2.0 LPM on that host all
together, if it expects
On Wed, Aug 28, 2013 at 10:15:34PM +, Paul Zimmerman wrote:
From: Sarah Sharp [mailto:sarah.a.sh...@linux.intel.com]
Sent: Wednesday, August 28, 2013 2:52 PM
On Mon, Aug 26, 2013 at 07:37:56PM +, Paul Zimmerman wrote:
From: Sarah Sharp [mailto:sarah.a.sh...@linux.intel.com]
If you take a look at Table
13: BESL/HIRD Encoding from the xHCI spec version including errata to
08/14/2012
Could you please provide a link to that errata? I still cannot find
it... but from your explanation, that design decision sounds pretty
horrible. Why didn't they just choose not to set
From: Sarah Sharp [mailto:sarah.a.sh...@linux.intel.com]
Sent: Thursday, August 29, 2013 10:42 AM
On Wed, Aug 28, 2013 at 10:15:34PM +, Paul Zimmerman wrote:
From: Sarah Sharp [mailto:sarah.a.sh...@linux.intel.com]
Sent: Wednesday, August 28, 2013 2:52 PM
On Mon, Aug 26, 2013
From: jwer...@google.com [mailto:jwer...@google.com] On Behalf Of Julius
Werner
Sent: Thursday, August 29, 2013 11:07 AM
If you take a look at Table
13: BESL/HIRD Encoding from the xHCI spec version including errata to
08/14/2012
Could you please provide a link to that errata? I
From: Sarah Sharp [mailto:sarah.a.sh...@linux.intel.com]
Sent: Wednesday, August 28, 2013 2:52 PM
On Mon, Aug 26, 2013 at 07:37:56PM +, Paul Zimmerman wrote:
From: Sarah Sharp [mailto:sarah.a.sh...@linux.intel.com]
Sent: Monday, August 26, 2013 12:14 PM
On Thu, Aug 22, 2013 at
So the 2.41a has BESL support, but may not set the BLC flag. What
happens if we use the HIRD encoding instead? Will things break? It
seems like we would need to disable USB 2.0 LPM on that host all
together, if it expects BESL encoding, but advertises HIRD encoding.
Wait a second, just for
On Thu, Aug 22, 2013 at 05:11:49AM +, Paul Zimmerman wrote:
From: Julius Werner
Sent: Wednesday, August 21, 2013 9:22 PM
You need the USB 2.0 spec errata from 2011-11 that describes the changes
made for BESL as well. It's in the USB2-LPM-Errata-final.pdf and
From: Sarah Sharp [mailto:sarah.a.sh...@linux.intel.com]
Sent: Monday, August 26, 2013 12:14 PM
On Thu, Aug 22, 2013 at 05:11:49AM +, Paul Zimmerman wrote:
From: Julius Werner
Sent: Wednesday, August 21, 2013 9:22 PM
You need the USB 2.0 spec errata from 2011-11 that
From: Paul Zimmerman
Sent: Monday, August 26, 2013 12:38 PM
...
So it may be safer to say that the feature is present starting with 2.50a.
In 2.51a it has been well-tested in simulation. In actual hardware, it
That should have said:
In 2.50a it has been well-tested in simulation...
--
Hi Julius,
Thanks for the patch! Did you test with a USB analyzer to see if the
device was actually going into USB 2.0 Link PM? I'd like to confirm we
really aren't breaking anything for DW3 hosts by enabling this.
Sarah Sharp
On Tue, Aug 20, 2013 at 04:21:49PM -0700, Julius Werner wrote:
Thanks for the patch! Did you test with a USB analyzer to see if the
device was actually going into USB 2.0 Link PM? I'd like to confirm we
really aren't breaking anything for DW3 hosts by enabling this.
Yes, I did. The LPM transfers on the analyzer look good and the device
works as
On Wed, Aug 21, 2013 at 02:43:55PM -0700, Julius Werner wrote:
Thanks for the patch! Did you test with a USB analyzer to see if the
device was actually going into USB 2.0 Link PM? I'd like to confirm we
really aren't breaking anything for DW3 hosts by enabling this.
Yes, I did. The LPM
On Wed, Aug 21, 2013 at 05:45:14PM -0700, Sarah Sharp wrote:
On Wed, Aug 21, 2013 at 02:43:55PM -0700, Julius Werner wrote:
Thanks for the patch! Did you test with a USB analyzer to see if the
device was actually going into USB 2.0 Link PM? I'd like to confirm we
really aren't breaking
From: Julius Werner
Sent: Wednesday, August 21, 2013 9:22 PM
You need the USB 2.0 spec errata from 2011-11 that describes the changes
made for BESL as well. It's in the USB2-LPM-Errata-final.pdf and
USB2_LinkPowerMangement_ECN[final].pdf files in this zip file:
The driver methods required for hardware LPM have only been added to the
PCI version of the XHCI driver, for no apparent reason. They seem to
work just as well with the platform driver, so let's add them to give
more devices the chance for additional power savings. Tested on the DWC3
xHC of an
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