linux.git/drivers/usb/typec/mux, branch v5.5 Linux kernel source tree usb: typec: Registering real device entries for the muxes 2019-06-03T08:55:38+00:00 Heikki Krogerus heikki.krogerus@linux.intel.com 2019-05-31T14:15:41+00:00 3370db35193b241ba5836a66df6ec1a559108389 Registering real device entries (struct device) for the mode muxes as well as for the orientation switches. The Type-C mux code was deliberately attempting to avoid creation of separate device entries for the orientation switch and the mode switch (alternate modes) because they are not physical devices. They are functions of a single physical multiplexer/demultiplexer switch device. Unfortunately because of the dependency we still have on the underlying mux device driver, we had to put in hacks like the one in the commit 3e3b81965cbf ("usb: typec: mux: Take care of driver module reference counting") to make sure the driver does not disappear from underneath us. Even with those hacks we were still left with a potential NUll pointer dereference scenario, so just creating the device entries, and letting the core take care of the dependencies. No more hacks needed. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 
Registering real device entries (struct device) for the mode
muxes as well as for the orientation switches.

The Type-C mux code was deliberately attempting to avoid
creation of separate device entries for the orientation
switch and the mode switch (alternate modes) because they
are not physical devices. They are functions of a single
physical multiplexer/demultiplexer switch device.

Unfortunately because of the dependency we still have on the
underlying mux device driver, we had to put in hacks like
the one in the commit 3e3b81965cbf ("usb: typec: mux: Take
care of driver module reference counting") to make sure the
driver does not disappear from underneath us. Even with
those hacks we were still left with a potential NUll pointer
dereference scenario, so just creating the device entries,
and letting the core take care of the dependencies. No more
hacks needed.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
usb: typec: pi3usb30532: Keep orientation when setting mux to safe mode 2019-03-19T14:00:34+00:00 Hans de Goede hdegoede@redhat.com 2019-02-22T19:22:39+00:00 bfb2ab8e7138fc484952a948275eb443e8b9a360 Keep the orientation value when setting the mux to safe mode, this fixes the orientation getting reset when switching alt-modes. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-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> 
Keep the orientation value when setting the mux to safe mode, this
fixes the orientation getting reset when switching alt-modes.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-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>
USB: add missing SPDX lines to Kconfig and Makefiles 2019-01-22T08:08:17+00:00 Greg Kroah-Hartman gregkh@linuxfoundation.org 2019-01-17T08:23:50+00:00 cae8dc3b685fb24f61f09b7197c6a383a66cff2c There are a few remaining drivers/usb/ files that do not have SPDX identifiers in them, all of these are either Kconfig or Makefiles. Add the correct GPL-2.0 identifier to them to make scanning tools happy. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
There are a few remaining drivers/usb/ files that do not have SPDX
identifiers in them, all of these are either Kconfig or Makefiles.  Add
the correct GPL-2.0 identifier to them to make scanning tools happy.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb: typec: pi3usb30532: Start using generic state values 2018-07-02T15:42:36+00:00 Heikki Krogerus heikki.krogerus@linux.intel.com 2018-06-27T15:19:52+00:00 49cbb33dfdeb7651b91c2316a61b644d8e6cfe22 Instead of the tcpm specific mux states, using the generic USB Type-C connector state values, and with DisplayPort using connector states defined for the DisplayPort Alt Mode. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Instead of the tcpm specific mux states, using the generic
USB Type-C connector state values, and with DisplayPort
using connector states defined for the DisplayPort Alt Mode.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb: typec: driver for Pericom PI3USB30532 Type-C cross switch 2018-03-22T12:49:28+00:00 Hans de Goede hdegoede@redhat.com 2018-03-20T12:57:11+00:00 da95cc1d9a4c7a5f0add7372527074321981bd98 Add a driver for the Pericom PI3USB30532 Type-C cross switch / mux chip found on some devices with a Type-C port. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Add a driver for the Pericom PI3USB30532 Type-C cross switch /
mux chip found on some devices with a Type-C port.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>