On 07/06/16 18:05, Felipe Balbi wrote:
>
> Hi,
>
> Roger Quadros writes:
>>> I might be able to find some time to implement a proof of concept which
>>> would allow your platforms to get dual-role with code we already have,
>>> but I need DWC3's OTG support which, I'm assuming,
On 07/06/16 18:05, Felipe Balbi wrote:
>
> Hi,
>
> Roger Quadros writes:
>>> I might be able to find some time to implement a proof of concept which
>>> would allow your platforms to get dual-role with code we already have,
>>> but I need DWC3's OTG support which, I'm assuming, you already have
On Tue, Jun 07, 2016 at 06:05:25PM +0300, Felipe Balbi wrote:
>
> Hi,
>
> Roger Quadros writes:
> >> I might be able to find some time to implement a proof of concept which
> >> would allow your platforms to get dual-role with code we already have,
> >> but I need DWC3's OTG
On Tue, Jun 07, 2016 at 06:05:25PM +0300, Felipe Balbi wrote:
>
> Hi,
>
> Roger Quadros writes:
> >> I might be able to find some time to implement a proof of concept which
> >> would allow your platforms to get dual-role with code we already have,
> >> but I need DWC3's OTG support which, I'm
y...@intel.com>; Greg Kroah-Hartman
<gre...@linuxfoundation.org>; Lee Jones <lee.jo...@linaro.org>; Heikki Krogerus
<heikki.kroge...@linux.intel.com>; Liam Girdwood <lgirdw...@gmail.com>; Mark
Brown <broo...@kernel.org>; linux-...@vger.kernel.org;
linux-kerne
-kernel@vger.kernel.org
Subject: Re: [PATCH v10 2/7] usb: mux: add generic code for dual role port mux
Hi,
[I have to resend my reply. The previous reply was failed to deliver
to usb mailing list. Sorry for inconvenience.]
On 06/08/2016 11:04 AM, Jun Li wrote:
Whether controller drivers want to use
rnel.org>; linux-
> u...@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH v10 2/7] usb: mux: add generic code for dual role port
> mux
>
>
> Hi,
>
> Roger Quadros <rog...@ti.com> writes:
> >> I might be able to find some time to impleme
Girdwood
> ; Mark Brown ; linux-
> u...@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH v10 2/7] usb: mux: add generic code for dual role port
> mux
>
>
> Hi,
>
> Roger Quadros writes:
> >> I might be able to find some time to implement a p
Hi,
Roger Quadros writes:
>> I might be able to find some time to implement a proof of concept which
>> would allow your platforms to get dual-role with code we already have,
>> but I need DWC3's OTG support which, I'm assuming, you already have :-)
>>
>> If you wanna try
Hi,
Roger Quadros writes:
>> I might be able to find some time to implement a proof of concept which
>> would allow your platforms to get dual-role with code we already have,
>> but I need DWC3's OTG support which, I'm assuming, you already have :-)
>>
>> If you wanna try something offline,
On 07/06/16 16:04, Felipe Balbi wrote:
>
> Hi,
>
> Roger Quadros writes:
>>> But you said I must run an unnecessary OTG state machine, 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.
On 07/06/16 16:04, Felipe Balbi wrote:
>
> Hi,
>
> Roger Quadros writes:
>>> But you said I must run an unnecessary OTG state machine, 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.
>>
>> We have a
Hi,
Roger Quadros writes:
>> But you said I must run an unnecessary OTG state machine, 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.
>
> We have a minimal dual-role state machine that
Hi,
Roger Quadros writes:
>> But you said I must run an unnecessary OTG state machine, 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.
>
> We have a minimal dual-role state machine that just looks at
On 07/06/16 12:53, Lu Baolu wrote:
> Hi,
>
> On 06/07/2016 11:03 AM, Jun Li wrote:
>> Hi Roger
>>
>>>
>>> For Mux devices implementing dual-role, the mux device driver _must_ use
>>> OTG/dual-role core API so that a common ABI is presented to user space for
>>> OTG/dual-role.
>> That's the only
On 07/06/16 12:53, Lu Baolu wrote:
> Hi,
>
> On 06/07/2016 11:03 AM, Jun Li wrote:
>> Hi Roger
>>
>>>
>>> For Mux devices implementing dual-role, the mux device driver _must_ use
>>> OTG/dual-role core API so that a common ABI is presented to user space for
>>> OTG/dual-role.
>> That's the only
On 07/06/16 12:27, Lu Baolu wrote:
> Hi,
>
> On 06/07/2016 02:34 PM, Jun Li wrote:
On 06/07/2016 11:03 AM, Jun Li wrote:
>> Hi Roger
>>
For Mux devices implementing dual-role, the mux device driver _must_
use OTG/dual-role core API so that a common ABI is
On 07/06/16 12:27, Lu Baolu wrote:
> Hi,
>
> On 06/07/2016 02:34 PM, Jun Li wrote:
On 06/07/2016 11:03 AM, Jun Li wrote:
>> Hi Roger
>>
For Mux devices implementing dual-role, the mux device driver _must_
use OTG/dual-role core API so that a common ABI is
Hi,
On 06/07/2016 11:03 AM, Jun Li wrote:
> Hi Roger
>
>>
>> For Mux devices implementing dual-role, the mux device driver _must_ use
>> OTG/dual-role core API so that a common ABI is presented to user space for
>> OTG/dual-role.
> That's the only point we have concern, do dual role switch
Hi,
On 06/07/2016 11:03 AM, Jun Li wrote:
> Hi Roger
>
>>
>> For Mux devices implementing dual-role, the mux device driver _must_ use
>> OTG/dual-role core API so that a common ABI is presented to user space for
>> OTG/dual-role.
> That's the only point we have concern, do dual role switch
Hi,
On 06/07/2016 02:34 PM, Jun Li wrote:
>> > On 06/07/2016 11:03 AM, Jun Li wrote:
>>> > > Hi Roger
>>> > >
> >>
> >> For Mux devices implementing dual-role, the mux device driver _must_
> >> use OTG/dual-role core API so that a common ABI is presented to user
> >> space for
Hi,
On 06/07/2016 02:34 PM, Jun Li wrote:
>> > On 06/07/2016 11:03 AM, Jun Li wrote:
>>> > > Hi Roger
>>> > >
> >>
> >> For Mux devices implementing dual-role, the mux device driver _must_
> >> use OTG/dual-role core API so that a common ABI is presented to user
> >> space for
t; linux-...@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH v10 2/7] usb: mux: add generic code for dual role port
> mux
>
> Hi Jun,
>
> On 06/07/2016 11:03 AM, Jun Li wrote:
> > Hi Roger
> >
> >>
> >> For Mux devices imple
ogerus ;
> Liam Girdwood ; Mark Brown ;
> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH v10 2/7] usb: mux: add generic code for dual role port
> mux
>
> Hi Jun,
>
> On 06/07/2016 11:03 AM, Jun Li wrote:
> > Hi Roger
> >
> >&g
Hi Jun,
On 06/07/2016 11:03 AM, Jun Li wrote:
> Hi Roger
>
>>
>> For Mux devices implementing dual-role, the mux device driver _must_ use
>> OTG/dual-role core API so that a common ABI is presented to user space for
>> OTG/dual-role.
> That's the only point we have concern, do dual role switch
Hi Jun,
On 06/07/2016 11:03 AM, Jun Li wrote:
> Hi Roger
>
>>
>> For Mux devices implementing dual-role, the mux device driver _must_ use
>> OTG/dual-role core API so that a common ABI is presented to user space for
>> OTG/dual-role.
> That's the only point we have concern, do dual role switch
Hi Roger
>
> For Mux devices implementing dual-role, the mux device driver _must_ use
> OTG/dual-role core API so that a common ABI is presented to user space for
> OTG/dual-role.
That's the only point we have concern, do dual role switch through
OTG/dual-role core, not do it by itself.
>
>
Hi Roger
>
> For Mux devices implementing dual-role, the mux device driver _must_ use
> OTG/dual-role core API so that a common ABI is presented to user space for
> OTG/dual-role.
That's the only point we have concern, do dual role switch through
OTG/dual-role core, not do it by itself.
>
>
Hi Peter,
On 06/06/2016 03:02 PM, Peter Chen wrote:
> >> But this code is better co-work with OTG/Dual-role framework, we'd
> >> better have only interface that the user can know which role for the
> >> current port.
> >> OTG/Dual-role framework and portmux framework are not
Hi Peter,
On 06/06/2016 03:02 PM, Peter Chen wrote:
> >> But this code is better co-work with OTG/Dual-role framework, we'd
> >> better have only interface that the user can know which role for the
> >> current port.
> >> OTG/Dual-role framework and portmux framework are not
On Mon, Jun 06, 2016 at 11:04:48AM +0800, Lu Baolu wrote:
> 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
On Mon, Jun 06, 2016 at 11:04:48AM +0800, Lu Baolu wrote:
> 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
Hi,
On 06/06/16 06:04, Lu Baolu wrote:
> 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
Hi,
On 06/06/16 06:04, Lu Baolu wrote:
> 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
On Mon, Jun 06, 2016 at 10:45:34AM +0800, Lu Baolu wrote:
> 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
On Mon, Jun 06, 2016 at 10:45:34AM +0800, Lu Baolu wrote:
> 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
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 point,it is a dual-role switch
> driver too,
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 point,it is a dual-role switch
> driver too,
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 switch includes at least below things:
> - ID
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 switch includes at least below things:
> - ID
Brown <broo...@kernel.org>;
>> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; Roger Quadros
>> <rog...@ti.com>
>> Subject: Re: [PATCH v10 2/7] usb: mux: add generic code for dual role port
>> mux
>>
>> Hi,
>>
>> On 06/05/2016 04:33
g Kroah-Hartman ; Lee Jones
>> ; Heikki Krogerus ;
>> Liam Girdwood ; Mark Brown ;
>> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; Roger Quadros
>>
>> Subject: Re: [PATCH v10 2/7] usb: mux: add generic code for dual role port
>> mux
>>
>> Hi
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 switch includes at least below things:
> >> > - ID or type-C event detection
> >> > - port mux
>
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 switch includes at least below things:
> >> > - ID or type-C event detection
> >> > - port mux
>
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 point,it is a dual-role switch
> >>> driver too,
> >> No, it's not a dual-role switch driver, but a
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 point,it is a dual-role switch
> >>> driver too,
> >> No, it's not a dual-role switch driver, but a
nel.org; Roger Quadros
> <rog...@ti.com>
> Subject: Re: [PATCH v10 2/7] usb: mux: add generic code for dual role port
> mux
>
> Hi,
>
> On 06/05/2016 04:33 PM, Jun Li wrote:
> >> Port mux is part of dual role switch, but not the whole thing.
> >
d ; Mark Brown ;
> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; Roger Quadros
>
> Subject: Re: [PATCH v10 2/7] usb: mux: add generic code for dual role port
> mux
>
> Hi,
>
> On 06/05/2016 04:33 PM, Jun Li wrote:
> >> Port mux is part of dual role switch
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 switch includes at least below things:
>> > - ID or type-C event detection
>> > - port mux
>> > - VBUS management
>> > - start/stop host/device controllers
>> >
>>
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 switch includes at least below things:
>> > - ID or type-C event detection
>> > - port mux
>> > - VBUS management
>> > - start/stop host/device controllers
>> >
>>
kernel.org; linux-kernel@vger.kernel.org; Roger Quadros
> <rog...@ti.com>
> Subject: Re: [PATCH v10 2/7] usb: mux: add generic code for dual role port
> mux
>
> Hi Peter,
>
> On 06/04/2016 10:28 AM, Peter Chen wrote:
> > On Sat, Jun 04, 2016 at 12:06:06AM +0800, Lu B
Lee Jones
> ; Heikki Krogerus ;
> Liam Girdwood ; Mark Brown ;
> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; Roger Quadros
>
> Subject: Re: [PATCH v10 2/7] usb: mux: add generic code for dual role port
> mux
>
> Hi Peter,
>
> On 06/04/2016 10:28 AM, Peter Chen
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.
>>
>> One example of port multiplexing
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.
>>
>> One example of port multiplexing
On Sat, Jun 04, 2016 at 12:06:06AM +0800, Lu Baolu wrote:
> 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
On Sat, Jun 04, 2016 at 12:06:06AM +0800, Lu Baolu wrote:
> 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
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
>> > a single USB port. There 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
>> > a single USB port. There is
On Fri, Jun 03, 2016 at 11:16:32AM +0300, Heikki Krogerus wrote:
> On Fri, Jun 03, 2016 at 03:41:13PM +0800, 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
On Fri, Jun 03, 2016 at 11:16:32AM +0300, Heikki Krogerus wrote:
> On Fri, Jun 03, 2016 at 03:41:13PM +0800, 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
On Fri, Jun 03, 2016 at 03:41:13PM +0800, 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
> > a single USB port. There
On Fri, Jun 03, 2016 at 03:41:13PM +0800, 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
> > a single USB port. There
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
> a single USB port. There is another external port mux which controls
> where the data lines
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
> a single USB port. There is another external port mux which controls
> where the data lines
Several Intel platforms implement USB dual role by having completely
separate xHCI and dwc3 IPs in PCH or SOC silicons. These two IPs share
a single USB port. There is another external port mux which controls
where the data lines should go. While the USB controllers are part of
the silicon, the
Several Intel platforms implement USB dual role by having completely
separate xHCI and dwc3 IPs in PCH or SOC silicons. These two IPs share
a single USB port. There is another external port mux which controls
where the data lines should go. While the USB controllers are part of
the silicon, the
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