usb: typec: qcom: Add Qualcomm PMIC Type-C driver

This commit adds a QCOM PMIC TCPM driver with an initial pm8150b
block.

The driver is layered as follows:

qcom_pmic_typec.c : Responsible for registering with TCPM and arbitrates
access to the Type-C and PDPHY hardware blocks in one
place. This presents a single TCPM device to device to
the Linux TCPM layer.

qcom_pmic_typec_pdphy.c: Responsible for interfacing with the PDPHY hardware and
processing power-delivery related calls from TCPM.
This hardware binding can be extended to
facilitate similar hardware in different PMICs.

qcom_pmic_typec_port.c: Responsible for notifying and processing Type-C
related calls from TCPM. Similar to the pdphy this
layer can be extended to handle the specifics of
different Qualcomm PMIC Type-C port managers.

This code provides all of the same functionality as the existing
qcom typec driver plus power-delivery as well.

As a result commit 6c8cf3695176 ("usb: typec: Add QCOM PMIC typec detection
driver") can be deleted entirely.

References code from Jonathan Marek, Jack Pham, Wesley Cheng, Hemant Kumar,
Guru Das Srinagesh and Ashay Jaiswal.

Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20230508142308.1656410-8-bryan.odonoghue@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: Add support for retimers

Introduce a retimer device class and associated functions that register
and use retimer "switch" devices. These operate in a manner similar to
the "mode-switch" and help configure retimers that exist between the
Type-C connector and host controller(s).

Type C ports can be linked to retimers using firmware node device
references (again, in a manner similar to "mode-switch").

There are no new sysfs files being created; there is the new retimer
class directory, but there are no class-specific files being created
there.

Signed-off-by: Prashant Malani <pmalani@chromium.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20220711072333.2064341-2-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: anx7411: Add Analogix PD ANX7411 support

Add driver for analogix ANX7411 USB Type-C DRP port controller.

Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Xin Ji <xji@analogixsemi.com>
Link: https://lore.kernel.org/r/20220714081350.36447-2-xji@analogixsemi.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: Separate USB Power Delivery from USB Type-C

Introducing a small device class for USB Power Delivery.
The idea with it is that we do not mix any more USB Power
Delivery information into the USB Type-C connectors only.
This separation will make it possible to register USB Power
Delivery devices also from other places, for example from
USB Type-C Bridges (see USB Type-C Bridge Specification).

The device class will not always deal with only the messages
and objects that were negotiated with the partner, but
instead messages and objects that can be used in the
negotiation. That allows the USB PD devices to be shared and
reconfigured. The ports can decide which objects are to be
advertised to the partner before the contract is negotiated.
It is also possible to allow the user space to make that
decision if needed.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20220502132058.86236-2-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: Support the WUSB3801 port controller

WUSB3801 features a configurable port type, accessory detection, and
plug orientation detection. It provides a hardware "ID" pin output for
compatibility with USB 2.0 OTG PHYs. Add a typec class driver for it.

Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Link: https://lore.kernel.org/r/20220214050118.61015-5-samuel@sholland.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: rt1719: Add support for Richtek RT1719

Richtek RT1719 is a sink-only Type-C PD controller it complies with
latest USB Type-C and PD standards. It integrates the physical layer of
USB power delivery protocol to allow up to 100W of power.

Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/1644421362-32104-3-git-send-email-u0084500@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: port-mapper: Convert to the component framework

Instead of trying to keep track of the connections to the
USB Type-C connectors separately, letting the component
framework take care of that.

From now on every USB Type-C connector will register itself
as "aggregate" - component master - and anything that can be
connected to it inside the system can then simply register
itself as a generic component.

The matching of the components and the connector shall rely
on ACPI _PLD initially. Before registering itself as the
aggregate, the connector will find all other ACPI devices
that have matching _PLD crc hash with it (matching value in
the pld_crc member of struct acpi_device), and add a
component match entry for each one of them. Because only
ACPI is supported for now, the driver shall only be build
when ACPI is supported.

This removes the need for the custom API that the driver
exposed. The components and the connector can therefore
exist completely independently of each other. The order in
which they are registered, as well as are they modules or
not, is now irrelevant.

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20211223082422.45637-1-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: Port mapping utility

Adding functions that can be used to link/unlink ports -
USB ports, TBT3/USB4 ports, DisplayPorts and so on - to
the USB Type-C connectors they are attached to inside a
system. The symlink that is created for the port device is
named "connector".

Initially only ACPI is supported. ACPI port object shares
the _PLD (Physical Location of Device) with the USB Type-C
connector that it's attached to.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20210407065555.88110-2-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: tps6598x: Move the driver under its own subdirectory

The driver consist of multiple files. Grouping all of them
under a separate directory drivers/usb/typec/tipd/.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20210310104630.77945-3-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: tps6598x: Add trace event for IRQ events

Allow to get irq event information via the tracing framework. This
allows to inspect USB-C negotiation at runtime.

Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Guido Günther <agx@sigxcpu.org>
Link: https://lore.kernel.org/r/11444ae487d69da98ec20a18f2e49259e68319e3.1613389531.git.agx@sigxcpu.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: Add QCOM PMIC typec detection driver

The QCOM SPMI typec driver handles the role and orientation detection, and
notifies client drivers using the USB role switch framework. It registers
as a typec port, so orientation can be communicated using the typec switch
APIs. The driver also attains a handle to the VBUS output regulator, so it
can enable/disable the VBUS source when acting as a host/device.

Signed-off-by: Wesley Cheng <wcheng@codeaurora.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20201008235934.8931-2-wcheng@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: add support for STUSB160x Type-C controller family

STMicroelectronics USB Type-C port controllers use I2C interface to
configure, control and read the operation status of the device. All ST USB
Type-C port controllers are based on the same I2C register map. That's why
this driver can be used with all ST USB Type-C ICs.
Some ST USB Type-C port controllers are Dual Role Port (DRP), only Sink or
Source, some supports USB Power Delivery. This can be configured through
connector device tree bindings.

This driver is a basic Type-C port controller driver, with no power
delivery support. It allows to configure ST USB Type-C port controller.
Interrupt is supported and enables CC connection events, to detect
attach and detach and update Type-C subsystem accordingly as well as usb
role switch.

ST USB Type-C port controller can be supplied in three different ways
depending on the target application:
- through VDD pin only (so VDD is the main supply)
- through VSYS pin only (so VSYS is the main supply)
- through VDD and VSYS pins.
When both VDD and VSYS power supplies are present, the low power supply
VSYS is selected as main supply when VSYS voltage is above 3.1V, else
VDD is selected as main supply.

In case of Source or Dual port type, if VDD supply is present, it has to be
enabled in case of Source power role to provide Vbus. When interrupt
support is available, VDD supply is dynamically managed upon attach/detach
interrupt. When there is no interrupt support, VDD supply is enabled by
default.

Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/20200924090049.9041-5-amelie.delaunay@st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: driver for TI HD3SS3220 USB Type-C DRP port controller

Driver for TI HD3SS3220 USB Type-C DRP port controller.

The driver currently registers the port and supports data role swapping.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/1567584941-13690-3-git-send-email-biju.das@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: Group all TCPCI/TCPM code together

Moving all the drivers that depend on the Port Controller
Manager under a new directory drivers/usb/typec/tcpm/ and
making Guenter Roeck the designated reviewer of that code.

Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: Add driver for DisplayPort alternate mode

DisplayPort USB Type-C Alt Mode allows DisplayPort displays
and adapters to be attached to the USB Type-C ports on the
system.

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: Bus type for alternate modes

Introducing a simple bus for the alternate modes. Bus allows
binding drivers to the discovered alternate modes the
partners support.

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>

staging: typec: tcpci: move tcpci drivers out of staging

Move TCPCI(Typec port controller interface) driver and rt1711h
driver out of staging.

Signed-off-by: Li Jun <jun.li@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: driver for Pericom PI3USB30532 Type-C cross switch

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>

usb: typec: API for controlling USB Type-C Multiplexers

USB Type-C connectors consist of various muxes and switches
that route the pins on the connector to the right locations.
The USB Type-C drivers need to be able to control the muxes,
as they are the ones that know things like the cable plug
orientation, and the current mode that was negotiated with
the partner.

This introduces a small API for registering and controlling
cable plug orientation switches, and separate small API for
registering and controlling pin multiplexer/demultiplexer
switches that are needed with Accessory/Alternate Modes.

Reviewed-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>

USB: add SPDX identifiers to all remaining Makefiles

It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.

This updates the remaining drivers/usb/*Makefile* that were missing SPDX
identifiers. They all get the following identifier:
SPDX-License-Identifier: GPL-2.0

The SPDX identifier is a legally binding shorthand, which can be used
instead of the full boiler plate text.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Johan Hovold <johan@kernel.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: driver for TI TPS6598x USB Power Delivery controllers

Driver for TI TPS65982, TPS65983 and other TPS6598x family
stand alone USB Power Delivery controllers.

The driver will at this stage only register the port and
partners attached to it, so cables and alternate modes are
not yet registered. Both power and data role swapping is
supported.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: fusb302: Move out of staging

The driver is in good enough shape to be moved out of staging.
Do it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

typec: tcpm: Move out of staging

Move tcpm (USB Type-C Port Manager) out of staging.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: typec: Add support for UCSI interface

UCSI - USB Type-C Connector System Software Interface - is a
specification that defines set of registers and data
structures for controlling the USB Type-C ports. It's
designed for systems where an embedded controller (EC) is in
charge of the USB Type-C PHY or USB Power Delivery
controller. It is designed for systems with EC, but it is
not limited to them, and for example some USB Power Delivery
controllers will use it as their direct control interface.

With UCSI the EC (or USB PD controller) acts as the port
manager, implementing all USB Type-C and Power Delivery state
machines. The OS can use the interfaces for reading the
status of the ports and controlling basic operations like
role swapping.

The UCSI specification highlights the fact that it does not
define the interface method (PCI/I2C/ACPI/etc.).
Therefore the driver is implemented as library and every
supported interface method needs its own driver. Driver for
ACPI is provided in separate patch following this one.

The initial driver includes support for all required
features from UCSI specification version 1.0 (getting
connector capabilities and status, and support for power and
data role swapping), but none of the optional UCSI features
(alternate modes, power source capabilities, and cable
capabilities).

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>

usb: typec: add driver for Intel Whiskey Cove PMIC USB Type-C PHY

This adds driver for the USB Type-C PHY on Intel WhiskeyCove
PMIC which is available on some of the Intel Broxton SoC
based platforms.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-and-Tested-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: USB Type-C connector class

The purpose of USB Type-C connector class is to provide
unified interface for the user space to get the status and
basic information about USB Type-C connectors on a system,
control over data role swapping, and when the port supports
USB Power Delivery, also control over power role swapping
and Alternate Modes.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-and-Tested-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>