From 4868f573a754f992a06f30f5f860bb57e3739ffb Mon Sep 17 00:00:00 2001 From: Loic Poulain Date: Wed, 11 Dec 2019 17:50:14 +0100 Subject: arm: dts: qcom: db410c: Enable USB OTG support 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. Signed-off-by: Loic Poulain Link: https://lore.kernel.org/r/1576083014-5842-1-git-send-email-loic.poulain@linaro.org Signed-off-by: Bjorn Andersson --- arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi | 19 +++++++++++++++++++ arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi | 11 ++++++----- 2 files changed, 25 insertions(+), 5 deletions(-) (limited to 'arch/arm64/boot') 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..aff218c1b7b6 100644 --- a/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi +++ b/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi @@ -5,6 +5,15 @@ &pm8916_gpios { usb_hub_reset_pm: usb_hub_reset_pm { + 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; @@ -22,6 +31,16 @@ }; }; + usb_sw_sel_pm_device: usb_sw_sel_pm_device { + pinconf { + pins = "gpio4"; + function = PMIC_GPIO_FUNC_NORMAL; + power-source = ; + 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>; }; -- cgit v1.2.1