[V5,00/21] Tegra XUSB OTG support
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Message ID 1581322307-11140-1-git-send-email-nkristam@nvidia.com
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  • Tegra XUSB OTG support
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Nagarjuna Kristam Feb. 10, 2020, 8:11 a.m. UTC
This patch series adds OTG support on XUSB hardware used in Tegra210 and
Tegra186 SoCs.

This patchset is composed with :
 - dt bindings of XUSB Pad Controller
 - dt bindings for XUSB device Driver
 - Tegra PHY driver for usb-role-switch and usb-phy
 - Tegra XUSB host mode driver to support OTG mode
 - Tegra XUSB device mode driver to use usb-phy and multi device mode
 - dts for XUSB pad controller
 - dts for xudc for Jetson TX1 and TX2
 - dts for Jetson-TK1
 - dts for Jetson-Nano

Tegra Pad controller driver register for role switch updates for
OTG/peripheral capable USB ports and adds usb-phy for that corresponding
USB ports.

Host and Device mode drivers gets usb-phy from USB2's phy and registers
notifier for role changes to perform corresponding role tasks.

Order of merging Patches:
Please merge DT changes first followed Tegra PHY driver changes and then
USB driver changes.

Tests done:
 - device mode support using micro-B USB cable connection between ubuntu
   host and DUT on micro-AB port
 - host mode support by connecting pen-drive to micro-AB USB port on DUT
   using standard-A to micro-A converter.
 - toggling between these 2 modes by hot plugging corresponding cables.

DUT: Jetson-tx1, Jetson tx2, Jetson Nano(device mode test only).

V5:
 - Jetson Nano DT changes are added in the series
 - Removed select USB_ROLE_SWITCH from Kconfig in the change corresponding
   to removal off role switch support from XUDC driver.
V4:
 - Owner info is updated to port->dev for which USB role switch is used.
 - Updated function name in logs, unsigned int usage as per comments.
 - usb_phy_event is used instead of usb_role to detect role changes as
   notifier arguments of usb-phy is used for charging current updates.
 - Added ACKed-by info for corresponding patches.
 - Jetson TK1 DT changes added to remove USB2-0 port from padctl node.
V3:
 - Port and cable names updated in "Tests done" section of cover letter as
   per JC inputs.
 - Fixed arguments allignments in USB padctl driver.
 - Padctl driver aborts if usb-role-switch is not present in dt for
   peripheral/otg roles.
 - Added Reviewed and ACKed details for corresponding patches.
V2:
 - Updated usb-role-switch documentation for Padctl driver.
 - Update XUDC bindings doc as suggested by Rob.
 - Used standard error codes for error return.
 - Added of_platform_depopulate during error and driver removal.
 - Updated error variable during phy initialization in XUDC driver.
 - Updated Tegra210 soc dtb file as per changes to binding doc.
 
Nagarjuna Kristam (21):
  dt-bindings: phy: tegra-xusb: Add usb-role-switch
  dt-bindings: usb: Add NVIDIA Tegra XUSB device mode controller binding
  phy: tegra: xusb: Add usb-role-switch support
  phy: tegra: xusb: Add usb-phy support
  phy: tegra: xusb: Add support to get companion USB 3 port
  phy: tegra: xusb: Add set_mode support for USB 2 phy on Tegra210
  phy: tegra: xusb: Add set_mode support for UTMI phy on Tegra186
  usb: xhci-tegra: Add OTG support
  usb: gadget: tegra-xudc: Remove usb-role-switch support
  usb: gadget: tegra-xudc: Add usb-phy support
  usb: gadget: tegra-xudc: use phy_set_mode to set/unset device mode
  usb: gadget: tegra-xudc: support multiple device modes
  arm64: tegra: update OTG port entries for jetson-tx1
  arm64: tegra: update OTG port entries for jetson-tx2
  arm64: tegra: Add xudc node for Tegra210
  arm64: tegra: Enable xudc on Jetson TX1
  arm64: tegra: Add xudc node for Tegra186
  arm64: tegra: Enable xudc node on Jetson TX2
  ARM: tegra: Remove USB 2-0 port from Jetson TK1 padctl
  arm64: tegra: update OTG port entries for jetson-nano
  arm64: tegra: Enable xudc node on Jetson nano

 .../bindings/phy/nvidia,tegra124-xusb-padctl.txt   |   6 +
 .../devicetree/bindings/usb/nvidia,tegra-xudc.yaml | 190 ++++++++++++++
 arch/arm/boot/dts/tegra124-jetson-tk1.dts          |   6 -
 arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts |  23 +-
 arch/arm64/boot/dts/nvidia/tegra186.dtsi           |  19 ++
 arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi     |  34 ++-
 arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts |  22 +-
 arch/arm64/boot/dts/nvidia/tegra210.dtsi           |  19 ++
 drivers/phy/tegra/Kconfig                          |   1 +
 drivers/phy/tegra/xusb-tegra186.c                  | 114 +++++++--
 drivers/phy/tegra/xusb-tegra210.c                  | 131 ++++++++--
 drivers/phy/tegra/xusb.c                           | 172 +++++++++++++
 drivers/phy/tegra/xusb.h                           |   5 +
 drivers/usb/gadget/udc/Kconfig                     |   1 -
 drivers/usb/gadget/udc/tegra-xudc.c                | 273 ++++++++++++++-------
 drivers/usb/host/xhci-tegra.c                      | 228 ++++++++++++++++-
 include/linux/phy/tegra/xusb.h                     |   2 +
 17 files changed, 1098 insertions(+), 148 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/usb/nvidia,tegra-xudc.yaml

Comments

Thierry Reding Feb. 17, 2020, 8:51 a.m. UTC | #1
On Mon, Feb 10, 2020 at 01:41:26PM +0530, Nagarjuna Kristam wrote:
> This patch series adds OTG support on XUSB hardware used in Tegra210 and
> Tegra186 SoCs.
> 
> This patchset is composed with :
>  - dt bindings of XUSB Pad Controller
>  - dt bindings for XUSB device Driver
>  - Tegra PHY driver for usb-role-switch and usb-phy
>  - Tegra XUSB host mode driver to support OTG mode
>  - Tegra XUSB device mode driver to use usb-phy and multi device mode
>  - dts for XUSB pad controller
>  - dts for xudc for Jetson TX1 and TX2
>  - dts for Jetson-TK1
>  - dts for Jetson-Nano
> 
> Tegra Pad controller driver register for role switch updates for
> OTG/peripheral capable USB ports and adds usb-phy for that corresponding
> USB ports.
> 
> Host and Device mode drivers gets usb-phy from USB2's phy and registers
> notifier for role changes to perform corresponding role tasks.
> 
> Order of merging Patches:
> Please merge DT changes first followed Tegra PHY driver changes and then
> USB driver changes.

Felipe, Greg, Kishon,

Given the runtime dependencies between these various parts, I could pick
these up into the Tegra tree if you provide an Acked-by.

Thierry
Thierry Reding Feb. 27, 2020, 5:32 p.m. UTC | #2
On Mon, Feb 17, 2020 at 09:51:30AM +0100, Thierry Reding wrote:
> On Mon, Feb 10, 2020 at 01:41:26PM +0530, Nagarjuna Kristam wrote:
> > This patch series adds OTG support on XUSB hardware used in Tegra210 and
> > Tegra186 SoCs.
> > 
> > This patchset is composed with :
> >  - dt bindings of XUSB Pad Controller
> >  - dt bindings for XUSB device Driver
> >  - Tegra PHY driver for usb-role-switch and usb-phy
> >  - Tegra XUSB host mode driver to support OTG mode
> >  - Tegra XUSB device mode driver to use usb-phy and multi device mode
> >  - dts for XUSB pad controller
> >  - dts for xudc for Jetson TX1 and TX2
> >  - dts for Jetson-TK1
> >  - dts for Jetson-Nano
> > 
> > Tegra Pad controller driver register for role switch updates for
> > OTG/peripheral capable USB ports and adds usb-phy for that corresponding
> > USB ports.
> > 
> > Host and Device mode drivers gets usb-phy from USB2's phy and registers
> > notifier for role changes to perform corresponding role tasks.
> > 
> > Order of merging Patches:
> > Please merge DT changes first followed Tegra PHY driver changes and then
> > USB driver changes.
> 
> Felipe, Greg, Kishon,
> 
> Given the runtime dependencies between these various parts, I could pick
> these up into the Tegra tree if you provide an Acked-by.

Ping. Are you guys okay if I pick these up into the Tegra tree?

Thierry
Greg KH March 4, 2020, 7:01 a.m. UTC | #3
On Thu, Feb 27, 2020 at 06:32:26PM +0100, Thierry Reding wrote:
> On Mon, Feb 17, 2020 at 09:51:30AM +0100, Thierry Reding wrote:
> > On Mon, Feb 10, 2020 at 01:41:26PM +0530, Nagarjuna Kristam wrote:
> > > This patch series adds OTG support on XUSB hardware used in Tegra210 and
> > > Tegra186 SoCs.
> > > 
> > > This patchset is composed with :
> > >  - dt bindings of XUSB Pad Controller
> > >  - dt bindings for XUSB device Driver
> > >  - Tegra PHY driver for usb-role-switch and usb-phy
> > >  - Tegra XUSB host mode driver to support OTG mode
> > >  - Tegra XUSB device mode driver to use usb-phy and multi device mode
> > >  - dts for XUSB pad controller
> > >  - dts for xudc for Jetson TX1 and TX2
> > >  - dts for Jetson-TK1
> > >  - dts for Jetson-Nano
> > > 
> > > Tegra Pad controller driver register for role switch updates for
> > > OTG/peripheral capable USB ports and adds usb-phy for that corresponding
> > > USB ports.
> > > 
> > > Host and Device mode drivers gets usb-phy from USB2's phy and registers
> > > notifier for role changes to perform corresponding role tasks.
> > > 
> > > Order of merging Patches:
> > > Please merge DT changes first followed Tegra PHY driver changes and then
> > > USB driver changes.
> > 
> > Felipe, Greg, Kishon,
> > 
> > Given the runtime dependencies between these various parts, I could pick
> > these up into the Tegra tree if you provide an Acked-by.
> 
> Ping. Are you guys okay if I pick these up into the Tegra tree?

That's up to Felipe, I have no opinion :)
Thierry Reding March 12, 2020, 9:22 a.m. UTC | #4
On Wed, Mar 04, 2020 at 08:01:00AM +0100, Greg Kroah-Hartman wrote:
> On Thu, Feb 27, 2020 at 06:32:26PM +0100, Thierry Reding wrote:
> > On Mon, Feb 17, 2020 at 09:51:30AM +0100, Thierry Reding wrote:
> > > On Mon, Feb 10, 2020 at 01:41:26PM +0530, Nagarjuna Kristam wrote:
> > > > This patch series adds OTG support on XUSB hardware used in Tegra210 and
> > > > Tegra186 SoCs.
> > > > 
> > > > This patchset is composed with :
> > > >  - dt bindings of XUSB Pad Controller
> > > >  - dt bindings for XUSB device Driver
> > > >  - Tegra PHY driver for usb-role-switch and usb-phy
> > > >  - Tegra XUSB host mode driver to support OTG mode
> > > >  - Tegra XUSB device mode driver to use usb-phy and multi device mode
> > > >  - dts for XUSB pad controller
> > > >  - dts for xudc for Jetson TX1 and TX2
> > > >  - dts for Jetson-TK1
> > > >  - dts for Jetson-Nano
> > > > 
> > > > Tegra Pad controller driver register for role switch updates for
> > > > OTG/peripheral capable USB ports and adds usb-phy for that corresponding
> > > > USB ports.
> > > > 
> > > > Host and Device mode drivers gets usb-phy from USB2's phy and registers
> > > > notifier for role changes to perform corresponding role tasks.
> > > > 
> > > > Order of merging Patches:
> > > > Please merge DT changes first followed Tegra PHY driver changes and then
> > > > USB driver changes.
> > > 
> > > Felipe, Greg, Kishon,
> > > 
> > > Given the runtime dependencies between these various parts, I could pick
> > > these up into the Tegra tree if you provide an Acked-by.
> > 
> > Ping. Are you guys okay if I pick these up into the Tegra tree?
> 
> That's up to Felipe, I have no opinion :)

Felipe, Kishon,

I've picked up the device tree changes into the Tegra tree. Let me know
if you also want me to pick up the USB and PHY driver changes.

Thierry
Kishon Vijay Abraham I March 13, 2020, 4:48 a.m. UTC | #5
Hi,

On 12/03/20 2:52 pm, Thierry Reding wrote:
> On Wed, Mar 04, 2020 at 08:01:00AM +0100, Greg Kroah-Hartman wrote:
>> On Thu, Feb 27, 2020 at 06:32:26PM +0100, Thierry Reding wrote:
>>> On Mon, Feb 17, 2020 at 09:51:30AM +0100, Thierry Reding wrote:
>>>> On Mon, Feb 10, 2020 at 01:41:26PM +0530, Nagarjuna Kristam wrote:
>>>>> This patch series adds OTG support on XUSB hardware used in Tegra210 and
>>>>> Tegra186 SoCs.
>>>>>
>>>>> This patchset is composed with :
>>>>>  - dt bindings of XUSB Pad Controller
>>>>>  - dt bindings for XUSB device Driver
>>>>>  - Tegra PHY driver for usb-role-switch and usb-phy
>>>>>  - Tegra XUSB host mode driver to support OTG mode
>>>>>  - Tegra XUSB device mode driver to use usb-phy and multi device mode
>>>>>  - dts for XUSB pad controller
>>>>>  - dts for xudc for Jetson TX1 and TX2
>>>>>  - dts for Jetson-TK1
>>>>>  - dts for Jetson-Nano
>>>>>
>>>>> Tegra Pad controller driver register for role switch updates for
>>>>> OTG/peripheral capable USB ports and adds usb-phy for that corresponding
>>>>> USB ports.
>>>>>
>>>>> Host and Device mode drivers gets usb-phy from USB2's phy and registers
>>>>> notifier for role changes to perform corresponding role tasks.
>>>>>
>>>>> Order of merging Patches:
>>>>> Please merge DT changes first followed Tegra PHY driver changes and then
>>>>> USB driver changes.
>>>>
>>>> Felipe, Greg, Kishon,
>>>>
>>>> Given the runtime dependencies between these various parts, I could pick
>>>> these up into the Tegra tree if you provide an Acked-by.
>>>
>>> Ping. Are you guys okay if I pick these up into the Tegra tree?
>>
>> That's up to Felipe, I have no opinion :)
> 
> Felipe, Kishon,
> 
> I've picked up the device tree changes into the Tegra tree. Let me know
> if you also want me to pick up the USB and PHY driver changes.

The PHY and USB changes can only go together since xhci-tegra.c seems to
use an export symbol of xusb PHY. So I'm fine if someone takes the PHY
changes along with USB changes.

Acked-by: Kishon Vijay Abraham I <kishon@ti.com>

Thanks
Kishon
Felipe Balbi March 13, 2020, 2:48 p.m. UTC | #6
Hi,

Thierry Reding <thierry.reding@gmail.com> writes:
> On Wed, Mar 04, 2020 at 08:01:00AM +0100, Greg Kroah-Hartman wrote:
>> On Thu, Feb 27, 2020 at 06:32:26PM +0100, Thierry Reding wrote:
>> > On Mon, Feb 17, 2020 at 09:51:30AM +0100, Thierry Reding wrote:
>> > > On Mon, Feb 10, 2020 at 01:41:26PM +0530, Nagarjuna Kristam wrote:
>> > > > This patch series adds OTG support on XUSB hardware used in Tegra210 and
>> > > > Tegra186 SoCs.
>> > > > 
>> > > > This patchset is composed with :
>> > > >  - dt bindings of XUSB Pad Controller
>> > > >  - dt bindings for XUSB device Driver
>> > > >  - Tegra PHY driver for usb-role-switch and usb-phy
>> > > >  - Tegra XUSB host mode driver to support OTG mode
>> > > >  - Tegra XUSB device mode driver to use usb-phy and multi device mode
>> > > >  - dts for XUSB pad controller
>> > > >  - dts for xudc for Jetson TX1 and TX2
>> > > >  - dts for Jetson-TK1
>> > > >  - dts for Jetson-Nano
>> > > > 
>> > > > Tegra Pad controller driver register for role switch updates for
>> > > > OTG/peripheral capable USB ports and adds usb-phy for that corresponding
>> > > > USB ports.
>> > > > 
>> > > > Host and Device mode drivers gets usb-phy from USB2's phy and registers
>> > > > notifier for role changes to perform corresponding role tasks.
>> > > > 
>> > > > Order of merging Patches:
>> > > > Please merge DT changes first followed Tegra PHY driver changes and then
>> > > > USB driver changes.
>> > > 
>> > > Felipe, Greg, Kishon,
>> > > 
>> > > Given the runtime dependencies between these various parts, I could pick
>> > > these up into the Tegra tree if you provide an Acked-by.
>> > 
>> > Ping. Are you guys okay if I pick these up into the Tegra tree?
>> 
>> That's up to Felipe, I have no opinion :)
>
> Felipe, Kishon,
>
> I've picked up the device tree changes into the Tegra tree. Let me know
> if you also want me to pick up the USB and PHY driver changes.

Sorry for the super long delay, no problems if you want to pick it
through your tree:

Acked-by: Felipe Balbi <balbi@kernel.org>