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ANDROID: dt-bindings: misc: Add bindings for HiSilicon usb hub and data role switch functionality on HiKey960

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This patch adds binding documentation to support usb hub and usb
data role switch of Hisilicon HiKey960 Board.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
CC: ShuFan Lee <shufan_lee@richtek.com>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>
Cc: Yu Chen <chenyu56@huawei.com>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Jun Li <lijun.kernel@gmail.com>
Cc: Valentin Schneider <valentin.schneider@arm.com>
Cc: Jack Pham <jackp@codeaurora.org>
Cc: linux-usb@vger.kernel.org
Cc: devicetree@vger.kernel.org
Bug: 146450171
Link: https://lore.kernel.org/lkml/20191212014233.32799-8-john.stultz@linaro.org/
Signed-off-by: Yu Chen <chenyu56@huawei.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: I3f111b39b7a982b3489549076412a2f7c3c3d008
This commit is contained in:
Yu Chen 2019-04-20 14:40:08 +08:00 • committed by John Stultz
commit 246d8d527f
1 changed files with 40 additions and 0 deletions
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40
Documentation/devicetree/bindings/misc/hisilicon-hikey-usb.txt Normal file
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Support usb hub and usb data role switch of Hisilicon HiKey960 Board.
-----------------------------
Required properties:
- compatible: "hisilicon,gpio_hubv1"
- typec-vbus-gpios: gpio to control the vbus of typeC port
- otg-switch-gpios: gpio to switch DP & DM between the hub and typeC port
- hub-vdd33-en-gpios: gpio to enable the power of hub
- pinctrl-names: pin configuration state name ("default")
- pinctrl-0: pinctrl config
- usb-role-switch: flags the driver as a role switch provider
- ports: two endpoints to connect the usb core role switch provider
to the usb-c tcpm driver.
Example
-----
hisi_hikey_usb: hisi_hikey_usb {
compatible = "hisilicon,gpio_hubv1";
typec-vbus-gpios = <&gpio25 2 GPIO_ACTIVE_HIGH>;
otg-switch-gpios = <&gpio25 6 GPIO_ACTIVE_HIGH>;
hub-vdd33-en-gpios = <&gpio5 6 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&usbhub5734_pmx_func>;
usb-role-switch;
port {
#address-cells = <1>;
#size-cells = <0>;
hikey_usb_ep0: endpoint@0 {
reg = <0>;
remote-endpoint = <&dwc3_role_switch>;
};
hikey_usb_ep1: endpoint@1 {
reg = <1>;
remote-endpoint = <&rt1711h_ep>;
};
};
};