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  1. 01 Nov, 2017 22 commits
  3. 30 Oct, 2017 4 commits
  5. 27 Oct, 2017 4 commits
    • Gustavo A. R. Silva's avatar
      usb: atm: cxacru: mark expected switch fall-throughs · 3a851c03
      Gustavo A. R. Silva authored 
      In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Signed-off-by: default avatarGustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      3a851c03
    • Gustavo A. R. Silva's avatar
      usb: class: usbtmc: mark expected switch fall-through · e4c6594d
      Gustavo A. R. Silva authored 
      In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Signed-off-by: default avatarGustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      e4c6594d
    • Greg Kroah-Hartman's avatar
      Merge tag 'extcon-next-for-4.15' of... · 4dce3c4b
      Greg Kroah-Hartman authored 
      Merge tag 'extcon-next-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into usb-next

Chanwoo writes:

Update extcon for 4.15

Detailed description for this pull request:
1. Split out extcon header file for consumer and provider device
: The extcon has two type of extcon devices as following.
- 'extcon provider deivce' adds new extcon device and detect
the state/properties of external connector. Also, it notifies the
state/properties to the extcon consumer device.
- 'extcon consumer device' gets the change state/properties
from extcon provider device.

Prior to that, include/linux/extcon.h contains all exported API
for both provider and consumer device driver. To clarify the meaning
of header file and to remove the wrong use-case on consumer device.
- include/linux/extcon-provider.h includes API for the provider device driver.
- include/linux/extcon.h includes the API for the consumer device driver.

2. Support the SmartDock accessory on extcon-max77843.c device driver
- Support the SmartDock accessory which detects following connectors
 at the same time.
 : USB host throught USB hub for mouse, keyboard and so on.
 : MHL connector for video output.
 : Charger connector for battery charging.
- It tested with Unitek Y-2165 MHL+OTG Hub Smart Phone Dock.

3. Fix the minor issue of extcon driver
- Delete the unneeded initialization in extcon-max14577.
- Make extcon_info static const in order to fix the warning.
      4dce3c4b
    • Greg Kroah-Hartman's avatar
      Merge tag 'phy-for-4.15_v1' of... · 6bd5bb1e
      Greg Kroah-Hartman authored 
      Merge tag 'phy-for-4.15_v1' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next

Kishon writes:

phy: for 4.15

 *) Add support in phy core to perform phy calibration
 *) Return NULL for optional PHY's even if CONFIG_GENERIC_PHY is not selected
 *) Add USB Phy driver for Broadcom STB SoCs
 *) Add support to force mediatek PHY with USB OTG function to enter
    a specific mode
 *) Calibrate rockchip-typec PHY according to docs
 *) Enable dual route feature for sun4i-usb in V3s SoC
 *) Use dr_mode dt property to enable otg capability in rcar-gen3-usb2
 *) Add driver data to specify dedicated otg pins in rcar-gen3-usb2 driver
 *) Configure the RX equalizer of brcm-sata PHY
 *) Update pcie phy settings for ti-pipe3 phy
 *) Add set_mode callback in qcom-ufs-qmp-14nm phy
 *) Use PHY callbacks in phy-qcom-ufs instead of export APIs
Signed-off-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
      6bd5bb1e
  7. 26 Oct, 2017 1 commit
  9. 25 Oct, 2017 1 commit
  11. 24 Oct, 2017 8 commits
    • Greg Kroah-Hartman's avatar
      Merge tag 'usb-for-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next · 2d5afd51
      Greg Kroah-Hartman authored 
      Felipe writes:

usb: changes for v4.15 merge window

Not much going on this time around. With only 51 non-merge commits,
this was one of the smallest pull requests from the Gadget tree.

Most of the changes are in the mtu3 driver which added support for
36-bit DMA, support for USB 3.1 and support for dual-role (along with
some non-critical fixes).

The dwc2 driver got a few improvements to how we handle gadget state
tracking and also added support for STM32F7xx devices.

Other than that, we just some minor non-critical fixes and
improvements all over the place.
      2d5afd51
    • John Stultz's avatar
      usb: dwc2: Fix UDC state tracking · ce2b21a4
      John Stultz authored 
      It has been noticed that the dwc2 udc state reporting doesn't
seem to work (at least on HiKey boards). Where after the initial
setup, the sysfs /sys/class/udc/f72c0000.usb/state file would
report "configured" no matter the state of the OTG port.

This patch adds a call so that we report to the UDC layer when
the gadget device is disconnected.

This patch does depend on the previous patch ("usb: dwc2:
Improve gadget state disconnection handling") in this patch set
in order to properly work.

Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: YongQin Liu <yongqin.liu@linaro.org>
Cc: John Youn <johnyoun@synopsys.com>
Cc: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Chen Yu <chenyu56@huawei.com>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Acked-by: default avatarMinas Harutyunyan <hminas@synopsys.com>
Tested-by: default avatarMinas Harutyunyan <hminas@synopsys.com>
Reported-by: default avatarAmit Pundir <amit.pundir@linaro.org>
Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
      ce2b21a4
    • John Stultz's avatar
      usb: dwc2: Error out of dwc2_hsotg_ep_disable() if we're in host mode · 9b481092
      John Stultz authored 
      We've found that while in host mode, using Android, if one runs
the command:
  stop adbd

The existing usb devices being utilized in host mode are disconnected.
This is most visible with usb networking devices.

This seems to be due to adbd closing the file:
  /dev/usb-ffs/adb/ep0
Which calls ffs_ep0_release() and the following backtrace:

[<ffffff800875a430>] dwc2_hsotg_ep_disable+0x148/0x150
[<ffffff800875a498>] dwc2_hsotg_udc_stop+0x60/0x110
[<ffffff8008787950>] usb_gadget_remove_driver+0x58/0x78
[<ffffff80087879e4>] usb_gadget_unregister_driver+0x74/0xe8
[<ffffff80087850c0>] unregister_gadget+0x28/0x58
[<ffffff800878511c>] unregister_gadget_item+0x2c/0x40
[<ffffff8008790ea8>] ffs_data_clear+0xe8/0xf8
[<ffffff8008790ed8>] ffs_data_reset+0x20/0x58
[<ffffff8008793218>] ffs_data_closed+0x98/0xe8
[<ffffff80087932d8>] ffs_ep0_release+0x20/0x30

Then when dwc2_hsotg_ep_disable() is called, we call
kill_all_requests() which causes a bunch of the following
messages:

dwc2 f72c0000.usb: Mode Mismatch Interrupt: currently in Host mode
dwc2 f72c0000.usb: Mode Mismatch Interrupt: currently in Host mode
dwc2 f72c0000.usb: Mode Mismatch Interrupt: currently in Host mode
dwc2 f72c0000.usb: Mode Mismatch Interrupt: currently in Host mode
dwc2 f72c0000.usb: Mode Mismatch Interrupt: currently in Host mode
dwc2 f72c0000.usb: Mode Mismatch Interrupt: currently in Host mode
dwc2 f72c0000.usb: Mode Mismatch Interrupt: currently in Host mode
dwc2 f72c0000.usb: Mode Mismatch Interrupt: currently in Host mode
init: Service 'adbd' (pid 1915) killed by signal 9
init: Sending signal 9 to service 'adbd' (pid 1915) process group...
init: Successfully killed process cgroup uid 0 pid 1915 in 0ms
init: processing action (init.svc.adbd=stopped) from (/init.usb.configfs.rc:15)
dwc2 f72c0000.usb: dwc2_hc_chhltd_intr_dma: Channel 8 - ChHltd set, but reason is unknown
dwc2 f72c0000.usb: hcint 0x00000002, intsts 0x04200029
dwc2 f72c0000.usb: dwc2_hc_chhltd_intr_dma: Channel 12 - ChHltd set, but reason is unknown
dwc2 f72c0000.usb: hcint 0x00000002, intsts 0x04200029
dwc2 f72c0000.usb: dwc2_hc_chhltd_intr_dma: Channel 15 - ChHltd set, but reason is unknown
dwc2 f72c0000.usb: hcint 0x00000002, intsts 0x04200029
dwc2 f72c0000.usb: dwc2_hc_chhltd_intr_dma: Channel 3 - ChHltd set, but reason is unknown
dwc2 f72c0000.usb: hcint 0x00000002, intsts 0x04200029
dwc2 f72c0000.usb: dwc2_hc_chhltd_intr_dma: Channel 4 - ChHltd set, but reason is unknown
dwc2 f72c0000.usb: hcint 0x00000002, intsts 0x04200029
dwc2 f72c0000.usb: dwc2_update_urb_state_abn(): trimming xfer length

And the usb devices connected are basically hung at this point.

It seems like if we're in host mode, we probably shouldn't run
the dwc2_hostg_ep_disable logic, so this patch returns an error
in that case.

With this patch (along with the previous patch in this set), we avoid
the mismatched interrupts and connected usb devices continue to function.

I'm not sure if some other solution would be better here, but this seems
to work, so I wanted to send it out for input on what the right approach
should be.

Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: YongQin Liu <yongqin.liu@linaro.org>
Cc: John Youn <johnyoun@synopsys.com>
Cc: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Chen Yu <chenyu56@huawei.com>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Acked-by: default avatarMinas Harutyunyan <hminas@synopsys.com>
Tested-by: default avatarMinas Harutyunyan <hminas@synopsys.com>
Reported-by: default avatarYongQin Liu <yongqin.liu@linaro.org>
Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
      9b481092
    • John Stultz's avatar
      usb: dwc2: Improve gadget state disconnection handling · d2471d4a
      John Stultz authored 
      In the earlier commit dad3f793 ("usb: dwc2: Make sure we
disconnect the gadget state"), I was trying to fix up the
fact that we somehow weren't disconnecting the gadget state,
so that when the OTG port was plugged in the second time we
would get warnings about the state tracking being wrong.

(This seems to be due to a quirk of the HiKey board where
we do not ever get any otg interrupts, particularly the session
end detected signal. Instead we only see status change
interrupt.)

The fix there was somewhat simple, as it just made sure to
call dwc2_hsotg_disconnect() before we connected things up
in OTG mode, ensuring the state handling didn't throw errors.

But in looking at a different issue I was seeing with UDC
state handling, I realized that it would be much better
to call dwc2_hsotg_disconnect when we get the state change
signal moving to host mode.

Thus, this patch removes the earlier disconnect call I added
and moves it (and the needed locking) to the host mode
transition.

Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: YongQin Liu <yongqin.liu@linaro.org>
Cc: John Youn <johnyoun@synopsys.com>
Cc: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Chen Yu <chenyu56@huawei.com>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Acked-by: default avatarMinas Harutyunyan <hminas@synopsys.com>
Tested-by: default avatarMinas Harutyunyan <hminas@synopsys.com>
Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
      d2471d4a
    • Manu Gautam's avatar
      usb: dwc3: core: Notify current USB mode to USB3 PHY as well · 644cbbc3
      Manu Gautam authored 
      Driver currently notifies only USB2 PHY on USB mode change.
Extend this to USB3 PHY so that PHY drivers based on the
mode can release system resources - clocks, regulators etc.
Additionally Qualcomm QMP and QUSB2 PHY drivers need to
override VBUS signal in PHY wrapper in device mode as USB
VBUS line is not connected to PHYs. Also, remove NULL checks
for PHY when calling phy_set_mode as PHY ops already check this.
Signed-off-by: default avatarManu Gautam <mgautam@codeaurora.org>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
      644cbbc3
    • Manu Gautam's avatar
      usb: dwc3: pci: Runtime resume child device from wq · 8eed00b2
      Manu Gautam authored 
      Driver currently resumes and increments pm usage_count
of its child device (dwc3 main) from its runtime_resume
handler. This requires dwc3 runtime_resume to perform
pm_runtime_put to decrement the pm usage_count. However
runtime_put from dwc3 happens for non pci drivers
(e.g. dwc3-if-simple.c) as well which results in dwc3
pm usage_count becoming negative after couple of
runtime suspend resume iterations. Fix this by
performing runtime_get/put from dwc3-pci driver only
using workqueue.
Signed-off-by: default avatarManu Gautam <mgautam@codeaurora.org>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
      8eed00b2
    • Manu Gautam's avatar
      usb: dwc3: Don't reinitialize core during host bus-suspend/resume · 689bf72c
      Manu Gautam authored 
      Driver powers-off PHYs and reinitializes DWC3 core and gadget on
resume. While this works fine for gadget mode but in host
mode there is not re-initialization of host stack. Also, resetting
bus as part of bus_suspend/resume is not correct which could affect
(or disconnect) connected devices.
Fix this by not reinitializing core on suspend/resume in host mode
for HOST only and OTG/drd configurations.
Signed-off-by: default avatarManu Gautam <mgautam@codeaurora.org>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
      689bf72c
    • Alexey Khoroshilov's avatar
      usb: phy: tahvo: fix error handling in tahvo_usb_probe() · ce035409
      Alexey Khoroshilov authored 
      If devm_extcon_dev_allocate() fails, we should disable clk before return.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: default avatarAlexey Khoroshilov <khoroshilov@ispras.ru>
Fixes: 860d2686 ("usb: phy: tahvo: Use devm_extcon_dev_[allocate|register]() and replace deprecated API")
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
      ce035409
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