<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/drivers/usb/chipidea/host.c, branch v4.1</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>usb: chipidea: host: turn on vbus before add hcd if early vbus on is required</title>
<updated>2015-03-18T15:19:12+00:00</updated>
<author>
<name>Li Jun</name>
<email>b47624@freescale.com</email>
</author>
<published>2015-02-11T04:45:02+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=6594591741883e004aaba105951337878698b054'/>
<id>6594591741883e004aaba105951337878698b054</id>
<content type='text'>
If CI_HDRC_TURN_VBUS_EARLY_ON is set, turn on vbus before adding hcd, so it
will not set reg_vbus of ehci_ci_priv, then vbus will not be handled by ehci core.

Signed-off-by: Li Jun &lt;jun.li@freescale.com&gt;
Signed-off-by: Peter Chen &lt;peter.chen@freescale.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
If CI_HDRC_TURN_VBUS_EARLY_ON is set, turn on vbus before adding hcd, so it
will not set reg_vbus of ehci_ci_priv, then vbus will not be handled by ehci core.

Signed-off-by: Li Jun &lt;jun.li@freescale.com&gt;
Signed-off-by: Peter Chen &lt;peter.chen@freescale.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: chipidea: host: add .bus_suspend quirk</title>
<updated>2015-03-18T15:19:11+00:00</updated>
<author>
<name>Peter Chen</name>
<email>peter.chen@freescale.com</email>
</author>
<published>2015-02-11T04:44:59+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=78f0357ec8baa1ffe9c14b81f88cb0f3a5e1c15a'/>
<id>78f0357ec8baa1ffe9c14b81f88cb0f3a5e1c15a</id>
<content type='text'>
For chipidea, its resume sequence is not-EHCI compatible, see
below description for FPR at portsc. So in order to send SoF in
time for remote wakeup sequence(within 3ms), the RUN/STOP bit must
be set before the resume signal is ended, but the usb resume
code may run after resume signal is ended, so we had to set it
at suspend path.

Force Port Resume - RW. Default = 0b.
1= Resume detected/driven on port.
0=No resume (K-state) detected/driven on port.
Host mode:
Software sets this bit to one to drive resume signaling. The Controller sets this bit to '1' if
a J-to-K transition is detected while the port is in the Suspend state. When this bit
transitions to a '1' because a J-to-K transition is detected, the Port Change Detect bit in
the USBSTS register is also set to '1'. This bit will automatically change to '0' after the
resume sequence is complete. This behavior is different from EHCI where the controller
driver is required to set this bit to a '0' after the resume duration is timed in the driver.
Note that when the controller owns the port, the resume sequence follows the defined

sequence documented in the USB Specification Revision 2.0. The resume signaling
(Full-speed 'K') is driven on the port as long as this bit remains a '1'. This bit will remain
a '1' until the port has switched to idle. Writing a '0' has no affect because the port
controller will time the resume operation, clear the bit and the port control state switches
to HS or FS idle.
This field is '0' if Port Power(PP) is '0' in host mode.

This bit is not-EHCI compatible.

Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Peter Chen &lt;peter.chen@freescale.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
For chipidea, its resume sequence is not-EHCI compatible, see
below description for FPR at portsc. So in order to send SoF in
time for remote wakeup sequence(within 3ms), the RUN/STOP bit must
be set before the resume signal is ended, but the usb resume
code may run after resume signal is ended, so we had to set it
at suspend path.

Force Port Resume - RW. Default = 0b.
1= Resume detected/driven on port.
0=No resume (K-state) detected/driven on port.
Host mode:
Software sets this bit to one to drive resume signaling. The Controller sets this bit to '1' if
a J-to-K transition is detected while the port is in the Suspend state. When this bit
transitions to a '1' because a J-to-K transition is detected, the Port Change Detect bit in
the USBSTS register is also set to '1'. This bit will automatically change to '0' after the
resume sequence is complete. This behavior is different from EHCI where the controller
driver is required to set this bit to a '0' after the resume duration is timed in the driver.
Note that when the controller owns the port, the resume sequence follows the defined

sequence documented in the USB Specification Revision 2.0. The resume signaling
(Full-speed 'K') is driven on the port as long as this bit remains a '1'. This bit will remain
a '1' until the port has switched to idle. Writing a '0' has no affect because the port
controller will time the resume operation, clear the bit and the port control state switches
to HS or FS idle.
This field is '0' if Port Power(PP) is '0' in host mode.

This bit is not-EHCI compatible.

Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Peter Chen &lt;peter.chen@freescale.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Chipidea: Set connect-at-fullspeed bit when entering host mode if CI_HDRC_FORCE_FULLSPEED is set in the platform data</title>
<updated>2015-03-18T15:19:11+00:00</updated>
<author>
<name>Daniel Tang</name>
<email>dt.tangr@gmail.com</email>
</author>
<published>2015-02-11T04:44:58+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=905276c4319174d52de0e45fc9b22f599497be47'/>
<id>905276c4319174d52de0e45fc9b22f599497be47</id>
<content type='text'>
PORTSC_PFSC is not set on entering host mode which means the USB OTG
controller will attempt to enumerate USB devices at high speed even when the
CI_HDRC_FORCE_FULLSPEED flag is set in the platform data.

This patch ensures it is set right before host mode operations begin if needed.

Signed-off-by: Daniel Tang &lt;dt.tangr@gmail.com&gt;
Signed-off-by: Peter Chen &lt;peter.chen@freescale.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
PORTSC_PFSC is not set on entering host mode which means the USB OTG
controller will attempt to enumerate USB devices at high speed even when the
CI_HDRC_FORCE_FULLSPEED flag is set in the platform data.

This patch ensures it is set right before host mode operations begin if needed.

Signed-off-by: Daniel Tang &lt;dt.tangr@gmail.com&gt;
Signed-off-by: Peter Chen &lt;peter.chen@freescale.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Revert "usb: chipidea: remove duplicate dev_set_drvdata for host_start"</title>
<updated>2015-01-09T17:45:30+00:00</updated>
<author>
<name>Peter Chen</name>
<email>peter.chen@freescale.com</email>
</author>
<published>2014-12-24T03:33:17+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=24c498df1c70fa3b8b4df18f4424904bf014c709'/>
<id>24c498df1c70fa3b8b4df18f4424904bf014c709</id>
<content type='text'>
This reverts commit 14b4099c074f2ddf4d84b22d370170e61b527529

It moved platform_set_drvdata(pdev, ci) before hcd is created,
and the hcd will assign itself as ci controller's drvdata during
the hcd creation function (in usb_create_shared_hcd), so it
overwrites the real ci's drvdata which we want to use.

So, if the controller is at host mode, the system suspend
API will get the wrong struct ci_hdrc pointer, and cause the
oops.

Signed-off-by: Peter Chen &lt;peter.chen@freescale.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This reverts commit 14b4099c074f2ddf4d84b22d370170e61b527529

It moved platform_set_drvdata(pdev, ci) before hcd is created,
and the hcd will assign itself as ci controller's drvdata during
the hcd creation function (in usb_create_shared_hcd), so it
overwrites the real ci's drvdata which we want to use.

So, if the controller is at host mode, the system suspend
API will get the wrong struct ci_hdrc pointer, and cause the
oops.

Signed-off-by: Peter Chen &lt;peter.chen@freescale.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: chipidea: remove duplicate dev_set_drvdata for host_start</title>
<updated>2014-11-26T17:28:12+00:00</updated>
<author>
<name>Peter Chen</name>
<email>peter.chen@freescale.com</email>
</author>
<published>2014-11-26T05:44:34+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=14b4099c074f2ddf4d84b22d370170e61b527529'/>
<id>14b4099c074f2ddf4d84b22d370170e61b527529</id>
<content type='text'>
The core driver has already done it, besides, move set driver data
operation just after ci has allocated successfully in case some
code (like ci_role_start) want to access this driver data.

Signed-off-by: Peter Chen &lt;peter.chen@freescale.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The core driver has already done it, besides, move set driver data
operation just after ci has allocated successfully in case some
code (like ci_role_start) want to access this driver data.

Signed-off-by: Peter Chen &lt;peter.chen@freescale.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'usb-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next</title>
<updated>2014-11-25T17:31:14+00:00</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@linuxfoundation.org</email>
</author>
<published>2014-11-25T17:31:14+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=2d4d9f35bab1cad7f83d10864291d1e50b12c3f9'/>
<id>2d4d9f35bab1cad7f83d10864291d1e50b12c3f9</id>
<content type='text'>
Felipe writes:

usb: patches for v3.19 merge window

This time, a very pull request with 216 non-merge
commits. Most of the commits contained here are
sparse or coccinelle fixes ranging from missing
'static' to returning 0 in case of errors.

More importantly, we have the removal the now
unnecessary 'driver' argument to -&gt;udc_stop().

DWC2 learned about Dual-Role builds. Users of
this IP can now have a single driver built for
host and device roles.

DWC3 got support for two new HW platforms: Exynos7
and AMD.

The Broadcom USB 3.0 Device Controller IP is now
supported and so is PLX USB338x, which means DWC3
has lost is badge as the only USB 3.0 peripheral
IP supported on Linux.

Thanks for Tony Lindgren's work, we can now have
a distro-like kernel where all MUSB glue layers
can be built into the same kernel (statically
or dynamically linked) and it'll work in PIO (DMA
will come probably on v3.20).

Other than these, the usual set of cleanups and
non-critical fixes.

Signed-off-by: Felipe Balbi &lt;balbi@ti.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Felipe writes:

usb: patches for v3.19 merge window

This time, a very pull request with 216 non-merge
commits. Most of the commits contained here are
sparse or coccinelle fixes ranging from missing
'static' to returning 0 in case of errors.

More importantly, we have the removal the now
unnecessary 'driver' argument to -&gt;udc_stop().

DWC2 learned about Dual-Role builds. Users of
this IP can now have a single driver built for
host and device roles.

DWC3 got support for two new HW platforms: Exynos7
and AMD.

The Broadcom USB 3.0 Device Controller IP is now
supported and so is PLX USB338x, which means DWC3
has lost is badge as the only USB 3.0 peripheral
IP supported on Linux.

Thanks for Tony Lindgren's work, we can now have
a distro-like kernel where all MUSB glue layers
can be built into the same kernel (statically
or dynamically linked) and it'll work in PIO (DMA
will come probably on v3.20).

Other than these, the usual set of cleanups and
non-critical fixes.

Signed-off-by: Felipe Balbi &lt;balbi@ti.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: chipidea: host: add portpower override</title>
<updated>2014-11-03T23:34:00+00:00</updated>
<author>
<name>Michael Grzeschik</name>
<email>m.grzeschik@pengutronix.de</email>
</author>
<published>2014-10-13T01:53:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=c8679a2fb8decc949c848ca58f93ff7fb619931a'/>
<id>c8679a2fb8decc949c848ca58f93ff7fb619931a</id>
<content type='text'>
This patch adds an external portpower override callback, only single
port regulator control is supported now.

Signed-off-by: Michael Grzeschik &lt;m.grzeschik@pengutronix.de&gt;
Signed-off-by: Peter Chen &lt;peter.chen@freescale.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This patch adds an external portpower override callback, only single
port regulator control is supported now.

Signed-off-by: Michael Grzeschik &lt;m.grzeschik@pengutronix.de&gt;
Signed-off-by: Peter Chen &lt;peter.chen@freescale.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: chipidea: add support to the generic PHY framework</title>
<updated>2014-11-03T16:03:30+00:00</updated>
<author>
<name>Antoine Tenart</name>
<email>antoine.tenart@free-electrons.com</email>
</author>
<published>2014-10-30T17:41:19+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=1e5e2d3d055436c114e2f16145b83339aed024ff'/>
<id>1e5e2d3d055436c114e2f16145b83339aed024ff</id>
<content type='text'>
This patch adds support of the PHY framework for ChipIdea drivers.
Changes are done in both the ChipIdea common code and in the drivers
accessing the PHY. This is done by adding a new PHY member in
ChipIdea's structures and by taking care of it in the code.

Signed-off-by: Antoine Tenart &lt;antoine.tenart@free-electrons.com&gt;
Acked-by: Peter Chen &lt;peter.chen@freescale.com&gt;
Signed-off-by: Felipe Balbi &lt;balbi@ti.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This patch adds support of the PHY framework for ChipIdea drivers.
Changes are done in both the ChipIdea common code and in the drivers
accessing the PHY. This is done by adding a new PHY member in
ChipIdea's structures and by taking care of it in the code.

Signed-off-by: Antoine Tenart &lt;antoine.tenart@free-electrons.com&gt;
Acked-by: Peter Chen &lt;peter.chen@freescale.com&gt;
Signed-off-by: Felipe Balbi &lt;balbi@ti.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: allow to supply the PHY in the drivers when using HCD</title>
<updated>2014-11-03T16:02:50+00:00</updated>
<author>
<name>Antoine Tenart</name>
<email>antoine.tenart@free-electrons.com</email>
</author>
<published>2014-10-30T17:41:16+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=ef44cb4226d132146e44f8ea562a16b27ff61126'/>
<id>ef44cb4226d132146e44f8ea562a16b27ff61126</id>
<content type='text'>
This patch modify the generic code handling PHYs to allow them to be
supplied from the drivers. This adds checks to ensure no PHY was already
there when looking for one in the generic code. This also makes sure we
do not modify its state in the generic HCD functions, it was provided by
the driver.

Signed-off-by: Antoine Tenart &lt;antoine.tenart@free-electrons.com&gt;
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Felipe Balbi &lt;balbi@ti.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This patch modify the generic code handling PHYs to allow them to be
supplied from the drivers. This adds checks to ensure no PHY was already
there when looking for one in the generic code. This also makes sure we
do not modify its state in the generic HCD functions, it was provided by
the driver.

Signed-off-by: Antoine Tenart &lt;antoine.tenart@free-electrons.com&gt;
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Felipe Balbi &lt;balbi@ti.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: rename phy to usb_phy in HCD</title>
<updated>2014-09-29T15:52:59+00:00</updated>
<author>
<name>Antoine Tenart</name>
<email>antoine.tenart@free-electrons.com</email>
</author>
<published>2014-09-24T19:05:50+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=3d46e73dfdb840f460e5b06416965d132570ec33'/>
<id>3d46e73dfdb840f460e5b06416965d132570ec33</id>
<content type='text'>
The USB PHY member of the HCD structure is renamed to 'usb_phy' and
modifications are done in all drivers accessing it.
This is in preparation to adding the generic PHY support.

Signed-off-by: Antoine Tenart &lt;antoine.tenart@free-electrons.com&gt;
[Sergei: added missing 'drivers/usb/misc/lvstest.c' file, resolved rejects,
updated changelog.]
Signed-off-by: Sergei Shtylyov &lt;sergei.shtylyov@cogentembedded.com&gt;
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Acked-by: Felipe Balbi &lt;balbi@ti.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The USB PHY member of the HCD structure is renamed to 'usb_phy' and
modifications are done in all drivers accessing it.
This is in preparation to adding the generic PHY support.

Signed-off-by: Antoine Tenart &lt;antoine.tenart@free-electrons.com&gt;
[Sergei: added missing 'drivers/usb/misc/lvstest.c' file, resolved rejects,
updated changelog.]
Signed-off-by: Sergei Shtylyov &lt;sergei.shtylyov@cogentembedded.com&gt;
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Acked-by: Felipe Balbi &lt;balbi@ti.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
