Re: [PATCH 00/21] Support qcom's HSIC USB and rewrite USB2 HS phy support

From	John Stultz <john.stultz@linaro.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH 00/21] Support qcom's HSIC USB and rewrite USB2 HS phy support
Date	2016-07-05 21:40 +0200
Message-ID	<rREml-77d-3@gated-at.bofh.it> (permalink)
References	<rOcFX-8ei-3@gated-at.bofh.it> <rORzs-165-3@gated-at.bofh.it> <rQmhQ-8pA-7@gated-at.bofh.it> <rQmhQ-8pA-5@gated-at.bofh.it> <rREml-77d-5@gated-at.bofh.it>
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On Tue, Jul 5, 2016 at 12:22 PM, Stephen Boyd <stephen.boyd@linaro.org> wrote:
> Quoting John Stultz (2016-07-01 23:03:38)
>> On Tue, Jun 28, 2016 at 1:34 AM, Stephen Boyd <stephen.boyd@linaro.org> wrote:
>> > Quoting John Stultz (2016-06-27 20:09:30)
>> >>
>> >> I haven't yet been able to test with this, as I need some other fixes
>> >> it seems too to deal with some of the iommu changes in my flo-WIP tree
>> >> (it can't find of_dma_configure), but will let you know how things
>> >> work once I have all that sorted.
>> >
>> > Cool, thanks for testing.
>>
>> So after working out some merge issues w/ my flo-WIP branch for the
>> nexus7, I was still having trouble, so I backed out to just your
>> (updated) branch.
>>
>> But even there, I'm not able to get the usb gadget up. I see:
>
> I can get the gadget working on the ifc6410 device I have. I'm using
> this script to test things:
>
> modprobe libcomposite
> mkdir config
> mount none config -t configfs
> mkdir config/usb_gadget/g1
> mkdir config/usb_gadget/g1/strings/0x409
> echo 012345678 > config/usb_gadget/g1/strings/0x409/serialnumber
> echo "manufacturer" > config/usb_gadget/g1/strings/0x409/manufacturer
> echo "db8074" > config/usb_gadget/g1/strings/0x409/product
> echo 0x1d6b > config/usb_gadget/g1/idVendor
> echo 0x0104 > config/usb_gadget/g1/idProduct
> mkdir config/usb_gadget/g1/functions/acm.GS0
> mkdir config/usb_gadget/g1/functions/acm.GS1
> mkdir config/usb_gadget/g1/functions/ecm.usb0
> mkdir config/usb_gadget/g1/configs/c.1
> mkdir config/usb_gadget/g1/configs/c.1/strings/0x409/
> echo "CDC 2xACM+ECM" >
> config/usb_gadget/g1/configs/c.1/strings/0x409/configuration
> ln -s config/usb_gadget/g1/functions/acm.GS0
> config/usb_gadget/g1/configs/c.1
> ln -s config/usb_gadget/g1/functions/acm.GS1
> config/usb_gadget/g1/configs/c.1
> ln -s config/usb_gadget/g1/functions/ecm.usb0
> config/usb_gadget/g1/configs/c.1
> echo $(ls /sys/class/udc/) > config/usb_gadget/g1/UDC
>
>>
>> [    1.869717] msm_hsusb 12500000.usb: failed to get phandle in
>> /soc/usb@12500000 node
>
> This is sort of ok (I've seen it before with the HSIC controller on
> 8074). The extcon is optional and so the error message should be
> silenced. I sent a patch to move it to debug level.
>
> I don't see an extcon in mainline for apq8064, but I think it may be
> needed. At the least, I see that we're using a PMIC interrupt in the
> msm-3.4 kernel for the ID pin and the charger is notifying of vbus
> events similar to how smbb is doing it for apq8074.
>
>> [    1.882347] 12500000.usb supply vbus not found, using dummy regulator
>
> This is not great. We don't have a regulator specified on apq8064 so we
> can't turn on vbus and really support host mode. This seems to already
> be the case on mainline though, so it's not like we're any worse here.
> To properly support this we need a regulator driver. I suppose if the
> RPM supports it we can just use that, but if it doesn't support this
> regulator then we need to port over the SSBI regulator driver to do
> native regulator control. So far I haven't been able to test host mode
> on apq8064 because of this.
>
>>
>> So I'm not sure if the dts changes were quite right. I've got all the
>> ULPI configs enabled. Any ideas?
>>
>
> The phy and controller are both probing? If they're not failing to probe
> then it's probably the phy that isn't working properly. Does gadget work
> without my patches on nexus7?

Without your patch, I need one dts tweak on nexus7 (which I sent out
on friday[1]) to get the default direction set to OTG or gadget. But
yea, it works with that against mainline.

I'll dig in some more on your suggestions above and let you know if I
figure it out.

thanks
-john

[1]: http://www.spinics.net/lists/devicetree/msg134274.html

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[PATCH 00/21] Support qcom's HSIC USB and rewrite USB2 HS phy support Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:30 +0200
  [PATCH 13/21] usb: chipidea: msm: Allow core to get usb phy Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:30 +0200
    Re: [PATCH 13/21] usb: chipidea: msm: Allow core to get usb phy Peter Chen <hzpeterchen@gmail.com> - 2016-06-29 09:00 +0200
      Re: [PATCH 13/21] usb: chipidea: msm: Allow core to get usb phy Peter Chen <hzpeterchen@gmail.com> - 2016-06-29 13:50 +0200
        Re: [PATCH 13/21] usb: chipidea: msm: Allow core to get usb phy Peter Chen <hzpeterchen@gmail.com> - 2016-06-30 04:00 +0200
  [PATCH 09/21] usb: chipidea: Add support for ULPI PHY bus Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    Re: [PATCH 09/21] usb: chipidea: Add support for ULPI PHY bus Peter Chen <hzpeterchen@gmail.com> - 2016-06-29 08:40 +0200
  [PATCH 14/21] usb: chipidea: msm: Add proper clk and reset support Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    Re: [PATCH 14/21] usb: chipidea: msm: Add proper clk and reset  support Peter Chen <hzpeterchen@gmail.com> - 2016-06-29 09:10 +0200
  [PATCH 07/21] usb: chipidea: Notify of reset when switching into host mode Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
  [PATCH 06/21] usb: chipidea: Initialize and reinitialize phy later Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    Re: [PATCH 06/21] usb: chipidea: Initialize and reinitialize phy  later Peter Chen <hzpeterchen@gmail.com> - 2016-06-29 04:40 +0200
      Re: [PATCH 06/21] usb: chipidea: Initialize and reinitialize phy  later Peter Chen <hzpeterchen@gmail.com> - 2016-06-30 03:30 +0200
  [PATCH 19/21] usb: chipidea: msm: Be silent on probe defer errors Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    Re: [PATCH 19/21] usb: chipidea: msm: Be silent on probe defer errors Peter Chen <hzpeterchen@gmail.com> - 2016-06-30 03:30 +0200
  [PATCH 03/21] usb: ulpi: Avoid reading/writing in device creation with OF devices Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
  [PATCH 20/21] phy: Add support for Qualcomm's USB HSIC phy Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    Re: [PATCH 20/21] phy: Add support for Qualcomm's USB HSIC phy Neil Armstrong <narmstrong@baylibre.com> - 2016-06-28 10:50 +0200
      Re: [PATCH 20/21] phy: Add support for Qualcomm's USB HSIC phy Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-29 00:10 +0200
        Re: [PATCH 20/21] phy: Add support for Qualcomm's USB HSIC phy Neil Armstrong <narmstrong@baylibre.com> - 2016-06-29 11:20 +0200
          Re: [PATCH 20/21] phy: Add support for Qualcomm's USB HSIC phy Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-29 21:00 +0200
  [PATCH 05/21] usb: chipidea: Handle extcon events properly Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    Re: [PATCH 05/21] usb: chipidea: Handle extcon events properly Peter Chen <hzpeterchen@gmail.com> - 2016-06-28 12:10 +0200
  [PATCH 08/21] usb: chipidea: Kick OTG state machine for AVVIS with vbus extcon Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    Re: [PATCH 08/21] usb: chipidea: Kick OTG state machine for AVVIS  with vbus extcon Peter Chen <hzpeterchen@gmail.com> - 2016-06-29 05:20 +0200
      Re: [PATCH 08/21] usb: chipidea: Kick OTG state machine for AVVIS  with vbus extcon Peter Chen <hzpeterchen@gmail.com> - 2016-06-30 03:40 +0200
        RE: [PATCH 08/21] usb: chipidea: Kick OTG state machine for AVVIS  with vbus extcon Jun Li <jun.li@nxp.com> - 2016-06-30 04:10 +0200
  [PATCH 18/21] usb: chipidea: msm: Add reset controller for PHY POR bit Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    Re: [PATCH 18/21] usb: chipidea: msm: Add reset controller for PHY  POR bit kbuild test robot <lkp@intel.com> - 2016-06-27 05:50 +0200
    Re: [PATCH 18/21] usb: chipidea: msm: Add reset controller for PHY  POR bit kbuild test robot <lkp@intel.com> - 2016-06-27 07:00 +0200
    Re: [PATCH 18/21] usb: chipidea: msm: Add reset controller for PHY  POR bit kbuild test robot <lkp@intel.com> - 2016-06-27 10:00 +0200
    Re: [PATCH 18/21] usb: chipidea: msm: Add reset controller for PHY  POR bit Peter Chen <hzpeterchen@gmail.com> - 2016-06-29 14:00 +0200
  [PATCH 02/21] usb: ulpi: Support device discovery via DT Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    Re: [PATCH 02/21] usb: ulpi: Support device discovery via DT kbuild test robot <lkp@intel.com> - 2016-06-27 06:20 +0200
    Re: [PATCH 02/21] usb: ulpi: Support device discovery via DT Heikki Krogerus <heikki.krogerus@linux.intel.com> - 2016-06-27 16:40 +0200
      Re: [PATCH 02/21] usb: ulpi: Support device discovery via DT Heikki Krogerus <heikki.krogerus@linux.intel.com> - 2016-06-28 13:50 +0200
        Re: [PATCH 02/21] usb: ulpi: Support device discovery via DT Peter Chen <hzpeterchen@gmail.com> - 2016-06-29 04:10 +0200
    Re: [PATCH 02/21] usb: ulpi: Support device discovery via DT Rob Herring <robh@kernel.org> - 2016-06-28 23:00 +0200
      Re: [PATCH 02/21] usb: ulpi: Support device discovery via DT Rob Herring <robh@kernel.org> - 2016-07-01 03:10 +0200
  [PATCH 15/21] usb: chipidea: msm: Mux over secondary phy at the right time Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    Re: [PATCH 15/21] usb: chipidea: msm: Mux over secondary phy at the  right time Bjorn Andersson <bjorn.andersson@linaro.org> - 2016-06-28 07:00 +0200
    Re: [PATCH 15/21] usb: chipidea: msm: Mux over secondary phy at the  right time Peter Chen <hzpeterchen@gmail.com> - 2016-06-29 10:20 +0200
      Re: [PATCH 15/21] usb: chipidea: msm: Mux over secondary phy at the  right time Peter Chen <hzpeterchen@gmail.com> - 2016-06-30 04:00 +0200
  [PATCH 16/21] usb: chipidea: msm: Restore wrapper settings after reset Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    Re: [PATCH 16/21] usb: chipidea: msm: Restore wrapper settings after  reset Peter Chen <hzpeterchen@gmail.com> - 2016-06-29 10:40 +0200
      Re: [PATCH 16/21] usb: chipidea: msm: Restore wrapper settings after  reset Peter Chen <hzpeterchen@gmail.com> - 2016-06-30 11:10 +0200
        Re: [PATCH 16/21] usb: chipidea: msm: Restore wrapper settings after reset Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-30 18:30 +0200
  [PATCH 11/21] usb: chipidea: msm: Use hw_write_id_reg() instead of writel directly Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    Re: [PATCH 11/21] usb: chipidea: msm: Use hw_write_id_reg() instead  of writel directly Peter Chen <hzpeterchen@gmail.com> - 2016-06-29 08:50 +0200
  [PATCH 21/21] phy: Add support for Qualcomm's USB HS phy Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
  [PATCH 17/21] usb: chipidea: msm: Make platform data driver local instead of global Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    Re: [PATCH 17/21] usb: chipidea: msm: Make platform data driver  local instead of global Peter Chen <hzpeterchen@gmail.com> - 2016-06-29 13:40 +0200
      Re: [PATCH 17/21] usb: chipidea: msm: Make platform data driver  local instead of global Peter Chen <hzpeterchen@gmail.com> - 2016-06-30 11:20 +0200
  [PATCH 01/21] of: device: Support loading a module with OF based modalias Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    Re: [PATCH 01/21] of: device: Support loading a module with OF based  modalias Bjorn Andersson <bjorn.andersson@linaro.org> - 2016-06-28 06:20 +0200
  [PATCH 04/21] usb: chipidea: Only read/write OTGSC from one place Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-26 09:40 +0200
    RE: [PATCH 04/21] usb: chipidea: Only read/write OTGSC from one place Jun Li <jun.li@nxp.com> - 2016-06-27 10:10 +0200
      RE: [PATCH 04/21] usb: chipidea: Only read/write OTGSC from one place Stephen Boyd <stephen.boyd@linaro.org> - 2016-06-27 21:10 +0200
        Re: [PATCH 04/21] usb: chipidea: Only read/write OTGSC from one place Peter Chen <hzpeterchen@gmail.com> - 2016-06-28 11:50 +0200
  Re: [PATCH 00/21] Support qcom's HSIC USB and rewrite USB2 HS phy support John Stultz <john.stultz@linaro.org> - 2016-06-28 05:10 +0200
    Re: [PATCH 00/21] Support qcom's HSIC USB and rewrite USB2 HS phy support John Stultz <john.stultz@linaro.org> - 2016-07-02 08:10 +0200
      Re: [PATCH 00/21] Support qcom's HSIC USB and rewrite USB2 HS phy support John Stultz <john.stultz@linaro.org> - 2016-07-05 21:40 +0200

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