diff options
| author | Loic Poulain <loic.poulain@linaro.org> | 2018-08-11 12:08:26 +0200 |
|---|---|---|
| committer | Amit Pundir <amit.pundir@linaro.org> | 2019-07-18 00:17:13 +0530 |
| commit | 0718e0c5d9a0b2dd0c26373c8277f44fd46d8f06 (patch) | |
| tree | 3ddefe8de6e6dff1a9bf4ea93f89fb82cae4848a | |
| parent | 5c94719be7a135cf69c2238086656b5aaf9b7e7f (diff) | |
db410c: arm: dts: qcom: db410c: Enable USB OTG supportdb410c-mainline-tracking
The Dragonboard-410c is able to act either as USB Host or Device.
The role can be determined at runtime via the USB_HS_ID pin which is
derived from the micro-usb port VBUS pin.
In Host role, SoC USB D+/D- are routed to the onboard USB 2.0 HUB.
In Device role, SoC USB D+/D- are routed to the USB 2.0 micro B port.
Routing is selected via USB_SW_SEL_PM gpio.
In device role USB HUB can be held in reset.
chipidea driver expects two extcon device pointers, one for the
EXTCON_USB event and one for the EXTCON_USB_HOST event. Since
the extcon-usb-gpio device is capable of generating both these
events, point two times to this extcon device.
LKML: https://patchwork.kernel.org/patch/10587513/
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
| -rw-r--r-- | arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi | 20 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi | 11 |
2 files changed, 26 insertions, 5 deletions
diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi index ec2f0de67993..99787cc2ec81 100644 --- a/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi +++ b/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi @@ -8,6 +8,16 @@ pinconf { pins = "gpio3"; function = PMIC_GPIO_FUNC_NORMAL; + input-disable; + output-high; + }; + }; + + usb_hub_reset_pm_device: usb_hub_reset_pm_device { + pinconf { + pins = "gpio3"; + function = PMIC_GPIO_FUNC_NORMAL; + input-disable; output-low; }; }; @@ -22,6 +32,16 @@ }; }; + usb_sw_sel_pm_device: usb_sw_sel_pm_device { + pinconf { + pins = "gpio4"; + function = PMIC_GPIO_FUNC_NORMAL; + power-source = <PM8916_GPIO_VPH>; + input-disable; + output-low; + }; + }; + pm8916_gpios_leds: pm8916_gpios_leds { pinconf { pins = "gpio1", "gpio2"; diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi index e12a36ce5d93..037e26b3f8d5 100644 --- a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi +++ b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi @@ -358,14 +358,15 @@ }; usb@78d9000 { - extcon = <&usb_id>; + extcon = <&usb_id>, <&usb_id>; status = "okay"; adp-disable; hnp-disable; srp-disable; - dr_mode = "host"; - pinctrl-names = "default"; - pinctrl-0 = <&usb_sw_sel_pm>; + dr_mode = "otg"; + pinctrl-names = "default", "device"; + pinctrl-0 = <&usb_sw_sel_pm &usb_hub_reset_pm>; + pinctrl-1 = <&usb_sw_sel_pm_device &usb_hub_reset_pm_device>; ulpi { phy { v1p8-supply = <&pm8916_l7>; @@ -504,7 +505,7 @@ usb_id: usb-id { compatible = "linux,extcon-usb-gpio"; - vbus-gpio = <&msmgpio 121 GPIO_ACTIVE_HIGH>; + id-gpio = <&msmgpio 121 GPIO_ACTIVE_HIGH>; pinctrl-names = "default"; pinctrl-0 = <&usb_id_default>; }; |