Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Cc: sta...@vger.kernel.org
---
drivers/usb/class/cdc-acm.c | 6 ++
drivers/usb/class/cdc-acm.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 8cd193b..e4c70dc 100644
-
oss occurs.
This patch lets bulk-in callback function handle unlinked urbs
to avoid data loss.
Signed-off-by: Tang Jian Qiang <jianqiang.t...@intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Cc: sta...@vger.kernel.org
Acked-by: Oliver Neukum <oneu...@suse.com>
---
oss occurs.
This patch lets bulk-in callback function handle unlinked urbs
to avoid data loss.
Signed-off-by: Tang Jian Qiang <jianqiang.t...@intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Cc: sta...@vger.kernel.org
---
drivers/usb/class/cdc-acm.c | 3 ++-
1 file change
oss occurs.
This patch lets bulk-in callback function handle unlinked urbs
to avoid data loss.
Signed-off-by: Tang Jian Qiang <jianqiang.t...@intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Cc: sta...@vger.kernel.org
Acked-by: Oliver Neukum <oneu...@suse.com>
---
On 12/30/2015 09:46 AM, Greg Kroah-Hartman wrote:
> On Wed, Dec 30, 2015 at 08:42:01AM +0800, Lu Baolu wrote:
>> In current acm driver, the bulk-in callback function ignores the
>> URBs unlinked in usb core.
>>
>> This causes unexpected data loss in some cases. For
Hi,
On 11/17/2015 06:28 PM, Dmitry Malkin wrote:
On Mon, 16 Nov 2015 10:18:42 +0800, Lu Baolu wrote:
This quirk works as well if debug host doesn't have DBC. I didn't try a
DBC-capable debug host yet.
Hi,
I went through it again, with your v3 patch series on top of vanilla v4.3.0.
Two
On 11/20/2015 10:33 PM, Mathias Nyman wrote:
On 17.11.2015 08:38, Lu Baolu wrote:
This patch adds a sysfs file for users to check 1) whether the debug
capability is implemented by hardware; 2) if supported, which state
does it stay at.
With a host that supports debug port, a file named
ent, we
> should improve it, Roger also provide an example of dual role switch with
> USB3 based on his OTG core.
Why do we need an OTG framework to support a device driver?
Is it something like a bus or class driver?
Best regards,
Lu Baolu
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Hi Peter,
On 06/04/2016 10:28 AM, Peter Chen wrote:
> On Sat, Jun 04, 2016 at 12:06:06AM +0800, Lu Baolu wrote:
>>> from my point,it is a dual-role switch
>>> driver too,
>> No, it's not a dual-role switch driver, but a driver for USB port
>> multiplexing.
>&
have concern, do dual role switch through
> OTG/dual-role core, not do it by itself.
That really depends on how do you define "dual role". Can you please
provide an unambiguous definition of "dual role" used in OTG/dual-role
framework?
Best regards,
Lu Baolu
>
>&
ine, even thought it
has nothing to do with my system, only because the two sides of my port
mux device is a host and peripheral controller.
Why?
Best regards,
Lu Baolu
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TG/dual-role code, my understanding is that "dual-role" is a
"reduced OTG" which is for DRD devices lacking of some OTG negotiation
protocols.
We really can't say "it's the scope of OTG/dual-role" whenever it comes to
"host and peripheral".
Best regards,
Lu Baolu
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I/testing/sysfs-bus-platform.
>
> I agree with Roger that the dual-role switch part in your code is better
> to use OTG framework to reduce redundancy.
I agree that we should use dual-role framework for role switch. Actually,
my code doesn't do this work. It only adds a generic framework for port
mux device and two mux device drivers used in Intel platform.
Best regards,
Lu Baolu
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Hi Greg,
On 06/08/2016 12:45 PM, Greg Kroah-Hartman wrote:
> On Thu, Jun 02, 2016 at 09:37:28AM +0800, Lu Baolu wrote:
>> In some Intel platforms, a single usb port is shared between USB host
>> and device controllers. The shared port is under control of a switch
>> which is
Hi Peter,
On 06/03/2016 03:41 PM, Peter Chen wrote:
> On Thu, Jun 02, 2016 at 09:37:24AM +0800, Lu Baolu wrote:
>> > Several Intel platforms implement USB dual role by having completely
>> > separate xHCI and dwc3 IPs in PCH or SOC silicons. These two IPs share
&
Hi Peter,
On 06/06/2016 10:05 AM, Peter Chen wrote:
> On Sun, Jun 05, 2016 at 04:46:55PM +0800, Lu Baolu wrote:
>> Hi,
>>
>> On 06/05/2016 04:33 PM, Jun Li wrote:
>>>> Port mux is part of dual role switch, but not the whole thing.
>>>>> Dual role sw
Hi Peter,
On 06/06/2016 09:25 AM, Peter Chen wrote:
> On Sun, Jun 05, 2016 at 02:55:56PM +0800, Lu Baolu wrote:
>> Hi Peter,
>>
>> On 06/04/2016 10:28 AM, Peter Chen wrote:
>>> On Sat, Jun 04, 2016 at 12:06:06AM +0800, Lu Baolu wrote:
>>>>> from my po
Hi Jun,
On 06/06/2016 09:08 AM, Jun Li wrote:
>
>> -Original Message-
>> From: Lu Baolu [mailto:baolu...@linux.intel.com]
>> Sent: Sunday, June 05, 2016 4:47 PM
>> To: Jun Li <jun...@nxp.com>; Peter Chen <hzpeterc...@gmail.com>
>> Cc
Hi Greg,
On 06/08/2016 11:45 PM, Greg Kroah-Hartman wrote:
> On Wed, Jun 08, 2016 at 03:56:04PM +0800, Lu Baolu wrote:
>> Hi Greg,
>>
>> On 06/08/2016 12:45 PM, Greg Kroah-Hartman wrote:
>>> On Thu, Jun 02, 2016 at 09:37:28AM +0800, Lu Baolu wrote:
>>>>
Hi Felipe and Heikki,
On 06/08/2016 12:42 PM, Greg Kroah-Hartman wrote:
> On Thu, Jun 02, 2016 at 09:37:23AM +0800, Lu Baolu wrote:
>> Add support to retrieve fixed voltage configure information through
>> ACPI interface. This is needed for Intel Bay Trail devices, where a
mux could be found in Cherry Trail and
Broxton devices.
All patches have been verified to work on Intel's BayTrail,
CherryTrail, and Broxton P platforms.
Lu Baolu (7):
regulator: fixed: add support for ACPI interface
usb: mux: add generic code for dual role port mux
usb: mux: add driver
by Chanwoo Choi]
Signed-off-by: David Cohen <david.a.co...@linux.intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.kroge...@linux.intel.com>
Reviewed-by: Felipe Balbi <ba...@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.c...@samsun
Add a maintainer entry for Intel USB dual role mux drivers and
add myself as a maintainer.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
MAINTAINERS | 10 ++
1 file changed, 10 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index ed1229e..edaeebe 100644
--- a/MAINT
Several Intel PCHs and SOCs have an internal mux that is used to
share one USB port between device controller and host controller.
The mux is handled through the Dual Role Configuration Register.
Signed-off-by: Heikki Krogerus <heikki.kroge...@linux.intel.com>
Signed-off-by: Lu Baolu
Add support to retrieve fixed voltage configure information through
ACPI interface. This is needed for Intel Bay Trail devices, where a
GPIO is used to control the USB vbus.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/regulator/fixed.
that users are able
to control the port role from user space.
Some other archs (e.g. Renesas R-Car gen2 SoCs) need an external mux to
swap usb roles as well. This code could also be leveraged for those archs.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Reviewed-by: Heikki Krogerus <hei
per platform_no_drv_owner.cocci]
Suggested-by: David Cohen <david.a.co...@linux.intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Reviewed-by: Felipe Balbi <ba...@kernel.org>
Acked-by: Lee Jones <lee.jo...@linaro.org>
---
drivers/mfd/Kconfig| 8 +++
mux switch.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Reviewed-by: Felipe Balbi <ba...@kernel.org>
---
drivers/usb/host/pci-quirks.c| 42 +++-
drivers/usb/host/xhci-ext-caps.h | 2 ++
2 files changed, 43 insertions(+), 1 deletion(-)
Hi Heikki,
On 05/30/2016 04:16 PM, Heikki Krogerus wrote:
> Hi Baolu,
>
> On Mon, May 30, 2016 at 01:51:44PM +0800, Lu Baolu wrote:
>> Add a maintainer entry for Intel USB dual role mux drivers and
>> add myself as a maintainer.
>>
>> Signed-off-by: L
void portmux_unregister(struct portmux_dev *pdev);
I will add below ones.
struct portmux_dev *portmux_lookup_by_name(char *name);
int portmux_switch(struct portmux_dev *pdev, enum port_role);
The normal usage mode is
1) the mux device is registered as soon as a mux is detected with
portmux_register();
2) In components like USB PHY or changer drivers, the mux could
be retrieved with portmux_lookup_by_name() and controlled via
portmux_switch().
Is this helpful?
Best regards,
Lu Baolu
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Hi,
On 05/30/2016 08:53 PM, Lu Baolu wrote:
> Hi Heikki,
>
> On 05/30/2016 04:16 PM, Heikki Krogerus wrote:
>> Hi Baolu,
>>
>> On Mon, May 30, 2016 at 01:51:44PM +0800, Lu Baolu wrote:
>>> Add a maintainer entry for Intel USB dual role mux driver
x could
>> > be retrieved with portmux_lookup_by_name() and controlled via
>> > portmux_switch().
>> >
>> > Is this helpful?
> It works for me, and we can improve it later if needed.
Okay, thanks.
Best regards,
Lu Baolu
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that users are able
to control the port role from user space.
Some other archs (e.g. Renesas R-Car gen2 SoCs) need an external mux to
swap usb roles as well. This code could also be leveraged for those archs.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Reviewed-by: Heikki Krogerus <hei
mux could be found in Cherry Trail and
Broxton devices.
All patches have been verified on Intel's BayTrail, CherryTrail,
and Broxton P platforms.
Lu Baolu (7):
regulator: fixed: add support for ACPI interface
usb: mux: add generic code for dual role port mux
usb: mux: add driver
Several Intel PCHs and SOCs have an internal mux that is used to
share one USB port between device controller and host controller.
The mux is handled through the Dual Role Configuration Register.
Signed-off-by: Heikki Krogerus <heikki.kroge...@linux.intel.com>
Signed-off-by: Lu Baolu
mux switch.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Reviewed-by: Felipe Balbi <ba...@kernel.org>
---
drivers/usb/host/pci-quirks.c| 42 +++-
drivers/usb/host/xhci-ext-caps.h | 2 ++
2 files changed, 43 insertions(+), 1 deletion(-)
per platform_no_drv_owner.cocci]
Suggested-by: David Cohen <david.a.co...@linux.intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Reviewed-by: Felipe Balbi <ba...@kernel.org>
Acked-by: Lee Jones <lee.jo...@linaro.org>
---
drivers/mfd/Kconfig| 8 +++
by Chanwoo Choi]
Signed-off-by: David Cohen <david.a.co...@linux.intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.kroge...@linux.intel.com>
Reviewed-by: Felipe Balbi <ba...@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.c...@samsun
Add support to retrieve fixed voltage configure information through
ACPI interface. This is needed for Intel Bay Trail devices, where a
GPIO is used to control the USB vbus.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/regulator/fixed.
Hi Greg,
On 06/18/2016 08:58 AM, Greg Kroah-Hartman wrote:
> On Thu, Jun 16, 2016 at 08:27:41AM +0800, Lu Baolu wrote:
>> Hi Greg,
>>
>> On 06/09/2016 10:39 AM, Lu Baolu wrote:
>>> Hi Greg,
>>>
>>> On 06/08/2016 11:45 PM, Greg Kroah-Hartman wrote:
&
Hi Greg,
On 06/09/2016 10:39 AM, Lu Baolu wrote:
> Hi Greg,
>
> On 06/08/2016 11:45 PM, Greg Kroah-Hartman wrote:
>> On Wed, Jun 08, 2016 at 03:56:04PM +0800, Lu Baolu wrote:
>>> Hi Greg,
>>>
>>> On 06/08/2016 12:45 PM, Greg Kroah-Hartman wrote:
>>
d test robot wrote:
>
>> CC: kbuild-...@01.org
>> In-Reply-To: <1453781665-4714-11-git-send-email-baolu...@linux.intel.com>
>> TO: Lu Baolu <baolu...@linux.intel.com>
>> CC: Greg Kroah-Hartman <gre...@linuxfoundation.org>
>> CC: linux-u
On 01/26/2016 03:36 PM, Greg Kroah-Hartman wrote:
> On Tue, Jan 26, 2016 at 12:14:16PM +0800, Lu Baolu wrote:
>> xHCI debug capability (DbC) is an optional functionality provided
>> by an xHCI host controller. Software learns this capability by
>> walking through the ext
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>
--
.
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 c81df40..344d93e 100644
--- a/drivers/usb/early/xhci
in fixed_addresses table for
xHCI mmio access.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
arch/x86/include/asm/fixmap.h | 4
1 file changed, 4 insertions(+)
diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
index 6d7d0e5..84298cb 100644
--- a/arch/x86/inclu
ser guide information.
(3) All patches rebased to the new usb-next branch which contains commit
d5ddcdf(xhci: rework xhci extended capability list parsing functions).
v5->v6:
(1) refresh the patches against 4.5-rc1.
(2) change "usb: xhci: dbc" to "usb: dbc" in the patch titles as t
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 | 774 +++
include/lin
this file
will show users the state (disabled, enabled or configured) of the
debug port.
With a host that does NOT support debug port, "debug_port_state" file
won't be created.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
.../ABI/testing/sysfs-bus-pci-drivers-xhci_hcd
On 01/25/2016 01:10 PM, Greg KH wrote:
> Hi all,
>
> I've caught up with, or responded to, all of the pending USB patches in
> my patch queue. So if you sent something and you didn't get an email
> saying it was applied to a tree, please refresh it against the latest
> release (4.5-rc1) and
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_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
Add Documentation/usb/xhci-dbc.txt. This document includes
development status and user guide for USB3 debug port.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
Documentation/usb/xhci-dbc.txt | 350 +
MAINTAINERS| 1 +
d
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
This patch add dbc debug device support in usb_debug driver.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Acked-by: Johan Hovold <jo...@kernel.org>
---
drivers/usb/serial/usb_debug.c | 28 +---
1 file changed, 25 insertions(+), 3 deletions(-)
diff --g
' 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 6c24ba0..37c5c87 100644
--- a/drivers/usb
Hi Mathias,
Greg is asking for your ack for these patches. Can you please
help to take a look?
Thanks,
Baolu
On 02/04/2016 05:43 AM, Greg Kroah-Hartman wrote:
> On Tue, Feb 02, 2016 at 10:34:34PM +0800, Lu Baolu wrote:
>>
>> On 01/26/2016 08:58 PM, Lu Baolu wrote:
>>>
On 02/04/2016 05:43 AM, Greg Kroah-Hartman wrote:
> On Tue, Feb 02, 2016 at 10:34:34PM +0800, Lu Baolu wrote:
>>
>> On 01/26/2016 08:58 PM, Lu Baolu wrote:
>>> Hi,
>>>
>>> This patch series adds support for early printk through USB3 debug port
On 01/26/2016 08:58 PM, Lu Baolu wrote:
> Hi,
>
> This patch series adds support for early printk through USB3 debug port.
> USB3 debug port is described in xHCI specification as an optional extended
> capability.
>
> Patch 1 to 9 add the driver for xHCI debug capa
On 01/26/2016 03:35 PM, Greg KH wrote:
> On Tue, Jan 26, 2016 at 12:19:48PM +0800, Lu Baolu wrote:
>>
>> On 01/25/2016 01:10 PM, Greg KH wrote:
>>> Hi all,
>>>
>>> I've caught up with, or responded to, all of the pending USB patches in
>>> my pa
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_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
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 6c24ba0..1806ea1 100644
--- a/drivers/usb
.
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 c81df40..344d93e 100644
--- a/drivers/usb/early/xhci
Add Documentation/usb/xhci-dbc.txt. This document includes
development status and user guide for USB3 debug port.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
Documentation/usb/xhci-dbc.txt | 350 +
MAINTAINERS| 1 +
d
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
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 | 774 +++
include/lin
in fixed_addresses table for
xHCI mmio access.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
arch/x86/include/asm/fixmap.h | 4
1 file changed, 4 insertions(+)
diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
index 6d7d0e5..84298cb 100644
--- a/arch/x86/inclu
ned expression compared with zero: size > 0
(3) add fix for 0-DAY kernel test error:
arch/x86/built-in.o: In function `setup_early_printk':
early_printk.c:(.init.text+0xceba): undefined reference to `early_xdbc_init'
early_printk.c:(.init.text+0xcec8): undefined reference to
`early
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
On 02/15/2016 07:16 PM, Mathias Nyman wrote:
> On 04.02.2016 01:56, Lu Baolu wrote:
>> Hi Mathias,
>>
>> Greg is asking for your ack for these patches. Can you please
>> help to take a look?
>>
>
> I'll take look now that I finally got the USB 3.1 code do
s and Dan Williams in case they have an opinoin about
> the DMA and PCI cases.
All the quirks in this file have been documented and verified to work.
Your concerns are right, I'll be glad to see other opinions.
>
>
> more comments inline
>
> On 26.01.2016 14:58, Lu Baolu wrot
On 02/18/2016 07:43 PM, Mathias Nyman wrote:
> On 26.01.2016 14:58, Lu Baolu wrote:
>> "printk" is not suitable for dbc debugging especially when console
>> is in usage. This patch adds a debug buffer in dbc driver and puts
>> the debug messages in this local
On 02/18/2016 09:32 PM, Mathias Nyman wrote:
> On 26.01.2016 14:58, Lu Baolu wrote:
>> 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.
>>
>&g
On 03/11/2016 08:03 AM, Greg Kroah-Hartman wrote:
> On Tue, Mar 08, 2016 at 03:53:41PM +0800, Lu Baolu wrote:
>> Intel SOC chips are featured with USB dual role. The host role is
>> provided by Intel xHCI IP, and the gadget role is provided by IP
>> from designware. Ta
On 03/11/2016 07:57 AM, Greg Kroah-Hartman wrote:
> On Thu, Mar 10, 2016 at 01:39:43PM +0100, Oliver Neukum wrote:
>> On Tue, 2016-03-08 at 15:53 +0800, Lu Baolu wrote:
>>
>>> diff --git a/Documentation/ABI/testing/sysfs-bus-platform
>>> b/Documentation/ABI/tes
HOST and PERIPHERAL;
3) The required action to do the real port switch.
This patch adds the common code to handle usb port mux. With this
common code, the individual mux driver, which always is platform
dependent, could focus on the real operation of mux switch.
Signed-off-by: Lu Baolu <ba
On 03/17/2016 03:27 PM, Chanwoo Choi wrote:
> Hi Lu,
>
> On 2016년 03월 17일 16:16, Lu Baolu wrote:
>> Hi Chanwoo,
>>
>> On 03/17/2016 02:07 PM, Chanwoo Choi wrote:
>>> Hi Lu,
>>>
>>> To handle extcon (external connector), I implemented th
Hi,
On 03/11/2016 08:06 AM, Greg Kroah-Hartman wrote:
> On Tue, Mar 08, 2016 at 03:53:44PM +0800, Lu Baolu wrote:
>> Several Intel PCHs and SOCs have an internal mux that is used to
>> share one USB port between device controller and host controller.
>>
>> A usb p
On 03/14/2016 11:27 AM, Greg Kroah-Hartman wrote:
> On Mon, Mar 14, 2016 at 09:09:22AM +0800, Lu Baolu wrote:
>> On 03/11/2016 08:06 AM, Greg Kroah-Hartman wrote:
>>> On Tue, Mar 08, 2016 at 03:53:44PM +0800, Lu Baolu wrote:
>>>> +struct intel_mux_dev {
>>>
In some Intel platforms, a single usb port is shared between USB host
and device controller. The shared port is under control of GPIO pins.
This patch adds the support for USB GPIO controlled port mux.
Signed-off-by: David Cohen <david.a.co...@linux.intel.com>
Signed-off-by: Lu Baolu
GPIO resource could be retrieved through APCI as well.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Reviewed-by: Felipe Balbi <ba...@kernel.org>
Acked-by: Chanwoo Choi <cw00.c...@samsung.com>
---
drivers/extcon/extcon-usb-gpio.c | 3 ++-
1 file changed, 2 insertions(+), 1
Several Intel PCHs and SOCs have an internal mux that is used to
share one USB port between device controller and host controller.
The mux is handled through the Dual Role Configuration Register.
Signed-off-by: Heikki Krogerus <heikki.kroge...@linux.intel.com>
Signed-off-by: Lu Baolu
Hi,
On 03/11/2016 07:57 AM, Greg Kroah-Hartman wrote:
> On Thu, Mar 10, 2016 at 01:39:43PM +0100, Oliver Neukum wrote:
>> On Tue, 2016-03-08 at 15:53 +0800, Lu Baolu wrote:
>>
>>> diff --git a/Documentation/ABI/testing/sysfs-bus-platform
>>> b/Documentati
Hi,
On 03/14/2016 11:27 AM, Greg Kroah-Hartman wrote:
> On Mon, Mar 14, 2016 at 09:09:22AM +0800, Lu Baolu wrote:
>> On 03/11/2016 08:06 AM, Greg Kroah-Hartman wrote:
>>> On Tue, Mar 08, 2016 at 03:53:44PM +0800, Lu Baolu wrote:
>>>> +struct intel_mux_dev
This is needed to handle the GPIO connected USB ID pin found on
Intel Baytrail devices.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Reviewed-by: Felipe Balbi <ba...@kernel.org>
Acked-by: Chanwoo Choi <cw00.c...@samsung.com>
---
drivers/extcon/extcon-usb-gpio.c | 7 +
HOST and PERIPHERAL;
3) The required action to do the real port switch.
This patch adds the common code to handle usb port mux. With this
common code, the individual mux driver, which always is platform
dependent, could focus on the real operation of mux switch.
Signed-off-by: Lu Baolu <ba
mux switch.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Reviewed-by: Felipe Balbi <ba...@kernel.org>
---
drivers/usb/host/pci-quirks.c| 47 ++--
drivers/usb/host/xhci-ext-caps.h | 2 ++
2 files changed, 47 insertions(+), 2 deletions(-)
for USB port mux controlled through memory mapped
registers and the logic to create the mux device. This type
of dual role port mux could be found in Cherry Trail and
Broxton devices.
Lu Baolu (6):
extcon: usb-gpio: add device binding for platform device
extcon: usb-gpio: add support
This is needed to handle the GPIO connected USB ID pin found on
Intel Baytrail devices.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Reviewed-by: Felipe Balbi <ba...@kernel.org>
Acked-by: Chanwoo Choi <cw00.c...@samsung.com>
---
drivers/extcon/extcon-usb-gpio.c | 7 +
Hi Chanwoo,
On 03/18/2016 03:52 PM, Chanwoo Choi wrote:
> Hi Baolu,
>
> On 2016년 03월 18일 15:32, Lu Baolu wrote:
>> Several Intel PCHs and SOCs have an internal mux that is used to
>> share one USB port between device controller and host controller.
>>
>> A
Some Intel platforms have an USB port mux controlled by GPIOs.
There's a single ACPI platform device that provides both USB ID
extcon device and a USB port mux device. This MFD driver will
split the 2 devices for their respective drivers.
Signed-off-by: Lu Baolu <baolu...@linux.intel.
GPIO resource could be retrieved through APCI as well.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Reviewed-by: Felipe Balbi <ba...@kernel.org>
Acked-by: Chanwoo Choi <cw00.c...@samsung.com>
---
drivers/extcon/extcon-usb-gpio.c | 3 ++-
1 file changed, 2 insertions(+), 1
function with unique id on patch[2]
> [2] 5960387a2fb83 (usb: dwc3: omap: Replace deprecated API of extcon)
Thanks. That's helpful.
By the way, is extcon_get_extcon_dev() still available?
>
> I'm sorry for late reply. I add the some comment on below.
Never mind. Thank you for remin
Several Intel PCHs and SOCs have an internal mux that is used to
share one USB port between device controller and host controller.
The mux is handled through the Dual Role Configuration Register.
Signed-off-by: Heikki Krogerus <heikki.kroge...@linux.intel.com>
Signed-off-by: Lu Baolu
On 03/18/2016 04:09 PM, Lee Jones wrote:
> On Fri, 18 Mar 2016, Lu Baolu wrote:
>
>> Some Intel platforms have an USB port mux controlled by GPIOs.
>> There's a single ACPI platform device that provides both USB ID
>> extcon device and a USB port mux device. This MFD dr
In some Intel platforms, a single usb port is shared between USB host
and device controller. The shared port is under control of GPIO pins.
This patch adds the support for USB GPIO controlled port mux.
Signed-off-by: David Cohen <david.a.co...@linux.intel.com>
Signed-off-by: Lu Baolu
Hi,
On 03/22/2016 11:17 AM, Lipengcheng wrote:
> Hi,
> Thanks for your reply.
> When the suspend and resume process , the operation of press ctrl + c will
> produce an interruput and cause to allocate memory failed. It causes the usb3
> module can not be used and core dump after resume
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