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[0/4] usb: phy: generic: Support enabling/disabling VBUS

Message ID 20220114170941.800068-1-sean.anderson@seco.com (mailing list archive)
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Series usb: phy: generic: Support enabling/disabling VBUS | expand

Message

Sean Anderson Jan. 14, 2022, 5:09 p.m. UTC
The generic USB phy has had VBUS-related code for a long time, but it
has always been broken, since the regulator was never gotten from the
device tree. However, the support itself seems not very useful, since
e.g.  usb_phy_vbus_on/off has no users and usb_phy_set_power is only
used by gadgets to make sure they don't draw too much current. Instead,
use the VBUS regulator to implement otg_set_vbus, which is called from
several drivers. This results in a change in semantics of VBUS, but
since support was always broken I don't think this will have any affect.


Sean Anderson (4):
  dt-bindings: usb: usb-nop-xceiv: Repurpose vbus-regulator
  usb: phy: generic: Get the vbus supply
  usb: phy: generic: Implement otg->set_vbus
  usb: phy: generic: Disable vbus on removal

 .../bindings/usb/usb-nop-xceiv.yaml           |  8 +--
 drivers/usb/phy/phy-generic.c                 | 55 +++++++++----------
 2 files changed, 31 insertions(+), 32 deletions(-)

Comments

Sean Anderson April 5, 2022, 2:51 p.m. UTC | #1
On 1/14/22 12:09 PM, Sean Anderson wrote:
> The generic USB phy has had VBUS-related code for a long time, but it
> has always been broken, since the regulator was never gotten from the
> device tree. However, the support itself seems not very useful, since
> e.g.  usb_phy_vbus_on/off has no users and usb_phy_set_power is only
> used by gadgets to make sure they don't draw too much current. Instead,
> use the VBUS regulator to implement otg_set_vbus, which is called from
> several drivers. This results in a change in semantics of VBUS, but
> since support was always broken I don't think this will have any affect.
> 
> 
> Sean Anderson (4):
>   dt-bindings: usb: usb-nop-xceiv: Repurpose vbus-regulator
>   usb: phy: generic: Get the vbus supply
>   usb: phy: generic: Implement otg->set_vbus
>   usb: phy: generic: Disable vbus on removal
> 
>  .../bindings/usb/usb-nop-xceiv.yaml           |  8 +--
>  drivers/usb/phy/phy-generic.c                 | 55 +++++++++----------
>  2 files changed, 31 insertions(+), 32 deletions(-)
> 

ping?

When this was submitted I got an email saying that the merge window was
closed... but I think it has opened and closed again during the
intervening time.

--Sean
Greg KH April 5, 2022, 3:02 p.m. UTC | #2
On Tue, Apr 05, 2022 at 10:51:34AM -0400, Sean Anderson wrote:
> 
> 
> On 1/14/22 12:09 PM, Sean Anderson wrote:
> > The generic USB phy has had VBUS-related code for a long time, but it
> > has always been broken, since the regulator was never gotten from the
> > device tree. However, the support itself seems not very useful, since
> > e.g.  usb_phy_vbus_on/off has no users and usb_phy_set_power is only
> > used by gadgets to make sure they don't draw too much current. Instead,
> > use the VBUS regulator to implement otg_set_vbus, which is called from
> > several drivers. This results in a change in semantics of VBUS, but
> > since support was always broken I don't think this will have any affect.
> > 
> > 
> > Sean Anderson (4):
> >   dt-bindings: usb: usb-nop-xceiv: Repurpose vbus-regulator
> >   usb: phy: generic: Get the vbus supply
> >   usb: phy: generic: Implement otg->set_vbus
> >   usb: phy: generic: Disable vbus on removal
> > 
> >  .../bindings/usb/usb-nop-xceiv.yaml           |  8 +--
> >  drivers/usb/phy/phy-generic.c                 | 55 +++++++++----------
> >  2 files changed, 31 insertions(+), 32 deletions(-)
> > 
> 
> ping?
> 
> When this was submitted I got an email saying that the merge window was
> closed... but I think it has opened and closed again during the
> intervening time.

It opened yesterday.  Please give us a chance to catch up.

While that happens, please take the time to review other changes on the
mailing lists, we can always use the help.

thanks,

greg k-h
Sean Anderson April 5, 2022, 3:06 p.m. UTC | #3
On 4/5/22 11:02 AM, Greg Kroah-Hartman wrote:
> On Tue, Apr 05, 2022 at 10:51:34AM -0400, Sean Anderson wrote:
>> 
>> 
>> On 1/14/22 12:09 PM, Sean Anderson wrote:
>> > The generic USB phy has had VBUS-related code for a long time, but it
>> > has always been broken, since the regulator was never gotten from the
>> > device tree. However, the support itself seems not very useful, since
>> > e.g.  usb_phy_vbus_on/off has no users and usb_phy_set_power is only
>> > used by gadgets to make sure they don't draw too much current. Instead,
>> > use the VBUS regulator to implement otg_set_vbus, which is called from
>> > several drivers. This results in a change in semantics of VBUS, but
>> > since support was always broken I don't think this will have any affect.
>> > 
>> > 
>> > Sean Anderson (4):
>> >   dt-bindings: usb: usb-nop-xceiv: Repurpose vbus-regulator
>> >   usb: phy: generic: Get the vbus supply
>> >   usb: phy: generic: Implement otg->set_vbus
>> >   usb: phy: generic: Disable vbus on removal
>> > 
>> >  .../bindings/usb/usb-nop-xceiv.yaml           |  8 +--
>> >  drivers/usb/phy/phy-generic.c                 | 55 +++++++++----------
>> >  2 files changed, 31 insertions(+), 32 deletions(-)
>> > 
>> 
>> ping?
>> 
>> When this was submitted I got an email saying that the merge window was
>> closed... but I think it has opened and closed again during the
>> intervening time.
> 
> It opened yesterday.  Please give us a chance to catch up.

Ah, sorry. I thought this series had just gotten lost.

> While that happens, please take the time to review other changes on the
> mailing lists, we can always use the help.

Noted.

--Sean