Commit Graph

753850 Commits

Author SHA1 Message Date
Jon Hunter 380375b937 usb: xhci: tegra: Fix runtime PM support
Fix silly mistake when enabling runtime PM support for the Tegra XHCI
driver. If runtime PM was enabled correctly for the XHCI device, then
we should call pm_runtime_get_sync() to enable the device.

Fixes: ee9e5f4c78 ("usb: xhci: tegra: Add runtime PM support")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-31 12:45:22 +02:00
Andrey Smirnov 03e6275ae3 usb: chipidea: Fix ULPI on imx51
Workaround introduced for i.MX53 in be9cae2479 ("usb: chipidea:
imx: Fix ULPI on imx53") seems to be applicable in case of i.MX51 as
well. Running latest kernel on ZII RDU1 Board (imx51-zii-rdu1.dts)
exhibits a kernel frozen on PORTSC access and applying the workaround
resolves the issue.

Fixes: be9cae2479 ("usb: chipidea: imx: Fix ULPI on imx53")
Cc: Peter Chen <peter.chen@nxp.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Chris Healy <cphealy@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Tested-By: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-31 12:44:39 +02:00
Shuah Khan (Samsung OSG) 40ecdeb1a1 usbip: usbip_detach: fix to check for invalid ports
usbip detach doesn't check for invalid ports and ports that are already
detached. It attempts to remove state file(s) without validating the port
and sends detach request to the driver for ports that are already detached.

Add check for invalid ports (port > maxports) and ports that are already
detached (status == VDEV_ST_NULL). Don't remove state files and don't send
detach request for invalid ports and ports that are already detached.

Add error and information messages that make sense.

Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-31 12:44:39 +02:00
Shuah Khan (Samsung OSG) d179f99a65 usbip: usbip_detach: Fix memory, udev context and udev leak
detach_port() fails to call usbip_vhci_driver_close() from its error
path after usbip_vhci_detach_device() returns failure, leaking memory
allocated in usbip_vhci_driver_open() and holding udev_context and udev
references. Fix it to call usbip_vhci_driver_close().

Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-31 12:44:39 +02:00
Arnd Bergmann edf380046b usb: musb: remove an unused variable
After the only users of this variable got removed, we now get a
warning about 'otg' being unused:

drivers/usb/musb/da8xx.c: In function 'da8xx_musb_interrupt':
drivers/usb/musb/da8xx.c:226:19: error: unused variable 'otg' [-Werror=unused-variable]

Fixes: d2852f2d3e ("usb: musb: remove references to default_a of struct usb_otg")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-31 12:44:39 +02:00
Douglas Anderson 3bea1cfcff usb: dwc3: Remove DEBUG define from Qualcomm DWC3 glue driver
It appears that a "#define DEBUG" was left in on the recent patch
landed for the Qualcomm DWC3 glue driver.  Let's remove it.

Fixes: a4333c3a6b ("usb: dwc3: Add Qualcomm DWC3 glue driver")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-31 12:43:53 +02:00
Prasanthi Chellakumar 802bda5595 usb: host: ohci: fix sfr kernel warning in ohci-at91 driver
The USB Host Controller driver 'ohci-at91.c' reads a Special Function
Register - OHCI Interrupt Configuration Register (AT91_SFR_OHCIICR)
for bits SUSPEND_A/B/C. These bits are defined in sama5d2 alone, so
sfr register mapping is done with compatible string "atmel,sama5d2-sfr".
This gives a kernel warning 'failed to find sfr node' with non sama5d2
cpus which is removed here, thus leaving it up to having a proper DTS.

Signed-off-by: Prasanthi Chellakumar <prasanthi.chellakumar@microchip.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-31 12:43:15 +02:00
Ruslan Bilovol 48b73d0fa1 usb: core: message: remove extra endianness conversion in usb_set_isoch_delay
No need to do extra endianness conversion in
usb_set_isoch_delay because it is already done
in usb_control_msg()

Fixes: 886ee36e72 ("usb: core: add support for USB_REQ_SET_ISOCH_DELAY")
Cc: Dmytro Panchenko <dmytro.panchenko@globallogic.com>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: stable <stable@vger.kernel.org> # v4.16+
Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-31 12:43:14 +02:00
Michael Grzeschik de19ca6fd7 usbip: dynamically allocate idev by nports found in sysfs
As the amount of available ports varies by the kernels build
configuration. To remove the limitation of the fixed 128 ports
we allocate the amount of idevs by using the number we get
from the kernel.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Acked-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-31 12:43:14 +02:00
Greg Kroah-Hartman dbafc28955 NFC: pn533: don't send USB data off of the stack
It's amazing that this driver ever worked, but now that x86 doesn't
allow USB data to be sent off of the stack, it really does not work at
all.  Fix this up by properly allocating the data for the small
"commands" that get sent to the device off of the stack.

We do this for one command by having a whole urb just for ack messages,
as they can be submitted in interrupt context, so we can not use
usb_bulk_msg().  But the poweron command can sleep (and does), so use
usb_bulk_msg() for that transfer.

Reported-by: Carlos Manuel Santos <cmmpsantos@gmail.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-31 12:43:14 +02:00
Greg Kroah-Hartman 7eeb11190f USB-serial updates for v4.18-rc1
Here are the USB-serial updates for 4.18-rc1, including:
 
  - support for hardware-assisted XON/XOFF output flow control for pl2303
  - fix for a long-standing IXON/IXOFF mixup in ftdi_sio
  - blacklist of two apparently unused dwm-158 modem interfaces that
    confused some user space daemon (option)
  - add missing const to a tty helper currently used by USB serial only
 
 Included are also various clean ups.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.18-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next

Johan writes:

USB-serial updates for v4.18-rc1

Here are the USB-serial updates for 4.18-rc1, including:

 - support for hardware-assisted XON/XOFF output flow control for pl2303
 - fix for a long-standing IXON/IXOFF mixup in ftdi_sio
 - blacklist of two apparently unused dwm-158 modem interfaces that
   confused some user space daemon (option)
 - add missing const to a tty helper currently used by USB serial only

Included are also various clean ups.

All have been in linux-next with no reported issues.

Signed-off-by: Johan Hovold <johan@kernel.org>
2018-05-31 12:15:20 +02:00
Greg Kroah-Hartman 2c093cdb0a phy: for 4.18
*) Add PHY driver for the ATH79 USB PHY
  *) Add USB3 PHY driver for Mediatek XS-PHY
  *) Add QUSB/QMP V3 USB3 PHY Support for Qualcomm's SDM845
  *) Add runtime PM support for mapphone PHY driver
  *) Allow phy_pm_runtime_xxx API calls to accept NULL
  *) Other minor cleanups and fixes
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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Merge tag 'phy-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next

Kishon writes:

phy: for 4.18

 *) Add PHY driver for the ATH79 USB PHY
 *) Add USB3 PHY driver for Mediatek XS-PHY
 *) Add QUSB/QMP V3 USB3 PHY Support for Qualcomm's SDM845
 *) Add runtime PM support for mapphone PHY driver
 *) Allow phy_pm_runtime_xxx API calls to accept NULL
 *) Other minor cleanups and fixes

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-05-25 18:02:08 +02:00
Jon Hunter 58c38116c6 usb: xhci: tegra: Add support for managing powergates
The Tegra XHCI controller requires that the XUSBA (for superspeed) and
XUSBC (for host) power-domains are enabled. Commit 8df127456f
("soc/tegra: pmc: Enable XUSB partitions on boot") was added to force
on these power-domains if the XHCI driver is enabled while proper
power-domain support is added, to ensure the device did not hang on
boot. However, rather than forcing on these power-domains in the PMC
driver we can use the legacy Tegra powergate APIs to turn on these
power-domains during the probe of the Tegra XHCI driver.

In the near future we plan to move the Tegra XHCI driver to use the
generic PM domain framework for power-domains and so to prepare for
this only use the legacy Tegra powergate API if there is not PM
domain associated with device (ie. dev.pm_domain is NULL). Please
note that in the future the superspeed and host resets will be handled
by the generic PM domain provider and so these are only these are only
needed in the case where there is no generic PM domain.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:23:02 +02:00
Jon Hunter ee9e5f4c78 usb: xhci: tegra: Add runtime PM support
Add runtime PM support to the Tegra XHCI driver and move the function
calls to enable/disable the clocks, regulators and PHY into the runtime
PM callbacks.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:23:02 +02:00
Jon Hunter f468b55cb7 usb: xhci: tegra: Prepare for adding runtime PM support
When adding runtime PM support to the Tegra XHCI driver, it is desirable
to move the function calls to enable the clocks, regulators and PHY from
the tegra_xusb_probe into the runtime PM handlers. Currently, the
clocks, regulators and PHY are all enabled before we call
usb_create_hcd() in tegra_xusb_probe(), however, we cannot call
pm_runtime_get_sync() at this point because the platform device data is
not yet initialised. Fortunately, the function usb_create_hcd() can be
called before we enable the clocks, regulators and PHY and so prepare
for adding runtime PM support, by moving the call to usb_create_hcd()
before we enable the hardware.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:23:02 +02:00
Alexander Kappner ca7d9515d0 usb-storage: Add compatibility quirk flags for G-Technologies G-Drive
The "G-Drive" (sold by G-Technology) external USB 3.0 drive
 hangs on write access under UAS and usb-storage:

[  136.079121] sd 15:0:0:0: [sdi] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[  136.079144] sd 15:0:0:0: [sdi] tag#0 Sense Key : Illegal Request [current]
[  136.079152] sd 15:0:0:0: [sdi] tag#0 Add. Sense: Invalid field in cdb
[  136.079176] sd 15:0:0:0: [sdi] tag#0 CDB: Write(16) 8a 08 00 00 00 00 00 00 00 00 00 00 00 08 00 00
[  136.079180] print_req_error: critical target error, dev sdi, sector 0
[  136.079183] Buffer I/O error on dev sdi, logical block 0, lost sync page write
[  136.173148] EXT4-fs (sdi): mounted filesystem with ordered data mode. Opts: (null)
[  140.583998] sd 15:0:0:0: [sdi] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[  140.584010] sd 15:0:0:0: [sdi] tag#0 Sense Key : Illegal Request [current]
[  140.584016] sd 15:0:0:0: [sdi] tag#0 Add. Sense: Invalid field in cdb
[  140.584022] sd 15:0:0:0: [sdi] tag#0 CDB: Write(16) 8a 08 00 00 00 00 e8 c4 00 18 00 00 00 08 00 00
[  140.584025] print_req_error: critical target error, dev sdi, sector 3905159192
[  140.584044] print_req_error: critical target error, dev sdi, sector 3905159192
[  140.584052] Aborting journal on device sdi-8.

The proposed patch adds compatibility quirks. Because the drive requires two
quirks (one to work with UAS, and another to work with usb-storage), adding this
under unusual_devs.h and not just unusual_uas.h so kernels compiled without UAS
receive the quirk. With the patch, the drive works reliably on UAS and usb-
storage.
(tested on NEC Corporation uPD720200 USB 3.0 host controller).

Signed-off-by: Alexander Kappner <agk@godking.net>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:19:39 +02:00
Alexander Kappner 8c4e97ddfe usb-storage: Add support for FL_ALWAYS_SYNC flag in the UAS driver
The ALWAYS_SYNC flag is currently honored by the usb-storage driver but not UAS
and is required to work around devices that become unstable upon being
queried for cache. This code is taken straight from:
drivers/usb/storage/scsiglue.c:284

Signed-off-by: Alexander Kappner <agk@godking.net>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:19:39 +02:00
Heikki Krogerus 05826ff135 usb: typec: wcove: Remove dependency on HW FSM
The USB Type-C PHY in Intel WhiskeyCove PMIC has build-in
USB Type-C state machine which we were relying on to
configure the CC lines correctly. This patch removes that
dependency and configures the CC line according to commands
from the port manager (tcpm.c) in wcove_set_cc().

This fixes an issue where USB devices attached to the USB
Type-C port do not get enumerated. When acting as
source/host, the HW FSM sometimes fails to configure the PHY
correctly.

Fixes: 3c4fb9f169 ("usb: typec: wcove: start using tcpm for USB PD support")
Cc: stable@vger.kernel.org
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:17:00 +02:00
Heikki Krogerus cb29684686 usb: roles: intel_xhci: Enable runtime PM
This fixes an issue where the mux does not get configured
when the parent device is suspended. The registers for this
mux are mapped to the parent device MMIO (usually xHCI PCI
device), so in order for the driver to be able to program
the registers, the parent device must be resumed.

Reported-by: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
Fixes: f6fb9ec02b ("usb: roles: Add Intel xHCI USB role switch driver")
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:17:00 +02:00
Heikki Krogerus c9359f4162 usb: typec: fusb302: Fix debugfs issue
Removing the "fusb302" debugfs directory when unloading
the driver. That allows the driver to be loaded more then
one time. The directory will not get actually removed until
it is empty, so only after the last instance has been
removed.

This fixes an issue where the driver can't be re-loaded if
it has been unloaded as the "fusb302" debugfs directory
already exists.

Fixes: 76f0c53d08 ("usb: typec: fusb302: Move out of staging")
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:17:00 +02:00
Heikki Krogerus 7c8d44566d platform: x86: intel_cht_int33fe: Fix dependencies
The driver will not probe unless bq24190 is loaded, so
making it a dependency.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:17:00 +02:00
Heikki Krogerus 35fcf02f80 usb: roles: intel_xhci: Always allow user control
Trying to determine the USB port type with this mux is very
difficult. To simplify the situation, always allow user
control, even if the port is USB Type-C port.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:17:00 +02:00
Heikki Krogerus 74789aed88 usb: typec: Fix htmldocs warning
Fix htmldocs warning:

drivers/usb/typec/mux.c:186: warning: Function parameter or member 'mux' not described in
'typec_mux_unregister'

Reported-by: kbuild test robot <lkp@intel.com>
Fixes: bdecb33af3 ("usb: typec: API for controlling USB Type-C Multiplexers")
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:14:28 +02:00
Gustavo A. R. Silva a0d6ec8809 usbip: vhci_sysfs: fix potential Spectre v1
pdev_nr and rhport can be controlled by user-space, hence leading to
a potential exploitation of the Spectre variant 1 vulnerability.

This issue was detected with the help of Smatch:
drivers/usb/usbip/vhci_sysfs.c:238 detach_store() warn: potential spectre issue 'vhcis'
drivers/usb/usbip/vhci_sysfs.c:328 attach_store() warn: potential spectre issue 'vhcis'
drivers/usb/usbip/vhci_sysfs.c:338 attach_store() warn: potential spectre issue 'vhci->vhci_hcd_ss->vdev'
drivers/usb/usbip/vhci_sysfs.c:340 attach_store() warn: potential spectre issue 'vhci->vhci_hcd_hs->vdev'

Fix this by sanitizing pdev_nr and rhport before using them to index
vhcis and vhci->vhci_hcd_ss->vdev respectively.

Notice that given that speculation windows are large, the policy is
to kill the speculation on the first load and not worry if it can be
completed with a dependent load/store [1].

[1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2

Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:14:28 +02:00
Yoshihiro Shimoda 4a014a7339 usb: gadget: function: printer: avoid wrong list handling in printer_write()
When printer_write() calls usb_ep_queue(), a udc driver (e.g.
renesas_usbhs driver) may call usb_gadget_giveback_request() in
the udc .queue ops immediately. Then, printer_write() calls
list_add(&req->list, &dev->tx_reqs_active) wrongly. After that,
if we do unbind the printer driver, WARN_ON() happens in
printer_func_unbind() because the list entry is not removed.

So, this patch moves list_add(&req->list, &dev->tx_reqs_active)
calling before usb_ep_queue().

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:14:28 +02:00
Adam Thomson c97a8cc17f typec: tcpm: Provide fwnode pointer as part of psy_cfg
For supply registration, provide fwnode pointer of the port device,
via the power_supply_config structure, to allow other psy drivers
to add us as a supplier. At present this only applies to DT
based platforms using the 'power-supplies' DT property, but in the
future should also work for ACPI platforms when the relevant support
is added to the power_supply core.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Suggested-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:14:27 +02:00
Adam Thomson ece711b5a4 power: supply: Add fwnode pointer to power_supply_config struct
To allow users of the power supply framework to be hw description
agnostic, this commit adds the ability to pass a fwnode pointer,
via the power_supply_config structure, to the initialisation code
of the core, instead of explicitly specifying of_ndoe. If that
fwnode pointer is provided then it will automatically resolve down
to of_node on platforms which support it, otherwise it will be NULL.

In the future, when ACPI support is added, this can be modified to
accommodate ACPI without the need to change calling code which
already provides the fwnode handle in this manner.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Suggested-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:14:27 +02:00
Chunfeng Yun 681e948524 usb: mtu3: fix warning of sleep in atomic context in notifier callback
The notifier callbacks of extcon are called in atomic context, but the
callbacks will call regulator_enable()/regulator_disable() which may
sleep caused by mutex, so use work queue to call the sleep functions.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:09:37 +02:00
Chunfeng Yun 4f9f032c25 usb: mtu3: reset gadget when VBUS_FALL interrupt arises
When VBUS_FALL interrupt arises, it means U3 device is disconnected
with host, so need reset status of gadget

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:09:37 +02:00
Chunfeng Yun 3d7678e2a0 usb: mtu3: avoid sleep in atomic context when enter test mode
Use readl_poll_timeout_atomic() instead of readl_poll_timeout()
in atomic context

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:09:37 +02:00
Chunfeng Yun fbe9db75b4 usb: mtu3: clear test_mode flag when reset
Clear test_mode flag when the gadget is reset by host, otherwise
will affect the next test item.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:09:37 +02:00
Chunfeng Yun 5fcdd6de18 usb: mtu3: fix uncontinuous SeqN issue after disable EP
Reset EP when disable it to reset data toggle for U2 EP, and
SeqN, flow control status etc for U3 EP, this can avoid
issue of uncontinuous SeqN

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:09:37 +02:00
Chunfeng Yun ad0c542cd2 usb: mtu3: re-enable controller to accept LPM request after LPM resume
After the controller receives a LPM request, it will reject the LPM
request, and need software to re-enable it after LPM resume if the
controller doesn't remote wakeup from L1 automatically

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:09:36 +02:00
Mathias Nyman 87a0380218 xhci: debugfs: add debugfs interface to enable compliance mode for a port
Enable compliance transition for a port by writing "compliance" to the
ports portsc file in debugfs.
port must be "Not-connected" and Link must be in RxDetect state to enable
compliance mode.

Only needed for host that have CTC flag set.
Allows state transitioning to compliance at 1st LFPS timeout.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:09 +02:00
Mathias Nyman 6547502392 xhci: debugfs: add usb ports to xhci debugfs
Add ports/portxx/portsc for each xHC hardware usb port to debugfs.
Showing the content of the port status and control register for
each port (PORTSC)

Portxx is numbered starting from 1 for historical reasons to better
match port numbering shown by lsusb and other places.

Ports in debugfs are in the order XHC controller has them,
In most cases USB2 ports come first, followed by USB3 ports.
i.e. USB2 ports are port01-portxx, and USB3 portxx-portmax.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:09 +02:00
Mathias Nyman 07f7619053 xhci: xhci-mem: remove port_arrays and the code initializing them
As we are now using the new port strtuctes the port_arrays
are no longer needed, remove them completely

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:09 +02:00
Mathias Nyman edaa30f878 xhci-mtk: use xhci hub structures to get number of ports in roothubs
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:08 +02:00
Mathias Nyman 925f349d4d xhci: xhci-hub: use port structure members instead of xhci_get_ports()
xhci_get_ports() is one of the last functions using port_arrays in
xhci-hub.c. We get the same data directly from hub and port structures
instead, so convert and remove both xhci_get_ports() and port_arrays from
all function that no longer need it.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:08 +02:00
Mathias Nyman 38986ffa6a xhci: use port structures instead of port arrays in xhci.c functions
get rid of port iomem arrays and use port structures in the following
functions:
xhci_find_raw_port_number()
xhci_disable_port_wake_on_bits()
xhci_set_usb2_hardware_lpm()
xhci_all_ports_seen_u0()
compliance_mode_recovery()

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:08 +02:00
Mathias Nyman eaefcf246b xhci: change xhci_test_and_clear_bit() to use new port structure
Don't use pointers to port array and port index as function parameters
in xhci_test_and_clear_bit(), just use a pointer to the right port
structure.

xhci_test_and_clear_bit() was the last port_array user in
xhci_get_port_status() and handle_port_status(), so remove the
port_array from them as well.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:08 +02:00
Mathias Nyman 6b7f40f712 xhci: change xhci_set_link_state() to work with port structures
Remove old iomem port array and index as parameters, just
send a ponter to a port strucure instread

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:08 +02:00
Mathias Nyman 74e6ad583a xhci: rename faked_port_index to hcd_portnum
hcd_portnum is a better desctiption than faked_port_index, and
is in line with the name the port structure uses.

No functional changes

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:08 +02:00
Mathias Nyman 52c7755ba1 xhci: xhci-ring: use port structures for port event handler
use port structures in the port event handler.
Getting the right hcd and hcd portnumber from the hardware port number
is a lot easier with port structures, and allows us to remove a lot
of the previous code, including the find_faked_portnum_from_hw_index()
function

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:08 +02:00
Mathias Nyman fdcf74ffef xhci: xhci-hub: use new port structures for cas and wake mask functions.
Use port structures instead of mmio port arrays for
xhci_port_missing_cas_quirk() and xhci_set_remote_wake_mask() in
xhci-hub.c

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:08 +02:00
Mathias Nyman e740b019d7 xhci: xhci-hub: use new port structures to get port address instead of port array
Use the new port structures for functions in xhci-hub.c to get
port mmio address of portsc register instead of the port array

xhci_get_port_io_addr() is no longer needeed and is removed.
Plan is to get rid of the mmio port array completely.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:08 +02:00
Mathias Nyman ffd4b4fc0b xhci: Add helper to get xhci roothub from hcd
quick way to get the xhci roothub and thus all the ports
belonging to a certain hcd

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:08 +02:00
Mathias Nyman 9ea95ecc7f xhci: set hcd pointers for xhci usb2 and usb3 roothub structures
Allows us to know the correct hcd a xhci roothub and its ports
belong to.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:08 +02:00
Mathias Nyman bcaa9d5c59 xhci: Create new structures to store xhci port information
Current way of having one array telling only the port speed,
and then two separate arrays with mmio addresses for usb2 and usb3 ports
requeres helper functions to transate  hw to hcd, and hcd to hw port
numbers, and is hard to expand.

Instead create a structure describing a port, including the mmio address,
the port hardware index, hcd port index, and a pointer to the roothub
it belongs to.

Create one array containing all port structures in the same order the
hardware controller sees them. Then add an array of port pointers to
each xhci hub structure pointing to the ports that belonging to the
roothub.

This way we can easily convert hw indexed port events to usb core
hcd port numbers, and vice versa usb core hub hcd port numbers
to hw index and mmio address.

Other benefit is that we can easily find the parent hcd and xhci
structure of a port structure. This is useful in debugfs where
we can give one port structure pointer as parameter and get both
the correct mmio address and xhci lock needed to set some port
parameter.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:07 +02:00
Jianguo Sun c508f41da0 xhci: hisilicon: support HiSilicon STB xHCI host controller
This commit adds support for HiSilicon STB xHCI host controller.
There are two xHCI host controllers on HiSilicon STB SoCs. Each
one requires additional configuration before exposing interface
compliant with xHCI.

Reviewed-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Jianguo Sun <sunjianguo1@huawei.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:07 +02:00
Jianguo Sun 9e85cdf6e5 dt-bindings: usb: add bindings doc for HiSilicon STB xHCI host controller
This commit adds bindings doc for HiSilicon STB xHCI host controller.

Signed-off-by: Jianguo Sun <sunjianguo1@huawei.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24 18:03:07 +02:00