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Subject[PATCH v2 0/6] add USB Type-B GPIO based role switch driver
Date
Because the USB Connector is introduced and the requirement of
usb-connector.txt binding, the old way using extcon to support
USB Dual-Role switch is now deprecated, meanwhile there is no
available common driver when use Type-B connector.
This patch series introduce a Type-B connector driver and try
to replace the function provided by extcon-usb-gpio driver.
The main purpose of the patches is also to solve the Type-B
connector problem encountered in [1].

[1]: https://patchwork.kernel.org/patch/10819377/

v2 changes:
1. make binding clear, and add a extra compatible suggested by Hans

Chunfeng Yun (6):
dt-bindings: connector: add optional properties for Type-B
dt-bindings: usb: add binding for Type-B dual role switch by GPIO
dt-bindings: usb: mtu3: add properties about USB Role Switch
usb: roles: add API to get usb_role_switch by node
usb: roles: add driver of USB Type-B role switch by GPIO
usb: mtu3: register a USB Role Switch for dual role mode

.../bindings/connector/usb-connector.txt | 9 +
.../devicetree/bindings/usb/mediatek,mtu3.txt | 10 +-
.../bindings/usb/typeb-switch-gpio.txt | 26 ++
drivers/usb/mtu3/mtu3.h | 5 +
drivers/usb/mtu3/mtu3_dr.c | 50 ++-
drivers/usb/mtu3/mtu3_plat.c | 3 +-
drivers/usb/roles/Kconfig | 14 +
drivers/usb/roles/Makefile | 1 +
drivers/usb/roles/class.c | 30 ++
drivers/usb/roles/typeb-switch-gpio.c | 285 ++++++++++++++++++
include/linux/usb/role.h | 1 +
11 files changed, 428 insertions(+), 6 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/typeb-switch-gpio.txt
create mode 100644 drivers/usb/roles/typeb-switch-gpio.c

--
2.20.1

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