From: Quentin Schulz quentin.schulz@theobroma-systems.com
[ Upstream commit ed2c66a95c0c5669880aa93d0d34c6e9694b4cbd ]
The micro USB3.0 port available on the Haikou evaluation kit for Puma RK3399-Q7 SoM supports dual-role model (aka drd or OTG) but its support was broken until now because of missing logic around the ID pin.
This adds proper support for USB OTG on Puma Haikou by "connecting" the GPIO used for USB ID to the USB3 controller device.
Cc: Quentin Schulz foss+kernel@0leil.net Signed-off-by: Quentin Schulz quentin.schulz@theobroma-systems.com Link: https://lore.kernel.org/r/20220120125156.16217-1-quentin.schulz@theobroma-sy... Signed-off-by: Heiko Stuebner heiko@sntech.de Signed-off-by: Sasha Levin sashal@kernel.org --- .../arm64/boot/dts/rockchip/rk3399-puma-haikou.dts | 1 + arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi | 14 ++++++++++++++ 2 files changed, 15 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts index 292bb7e80cf3..3ae5d727e367 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts @@ -232,6 +232,7 @@
&usbdrd_dwc3_0 { dr_mode = "otg"; + extcon = <&extcon_usb3>; status = "okay"; };
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi index fb67db4619ea..002ece51c3ba 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi @@ -25,6 +25,13 @@ }; };
+ extcon_usb3: extcon-usb3 { + compatible = "linux,extcon-usb-gpio"; + id-gpio = <&gpio1 RK_PC2 GPIO_ACTIVE_HIGH>; + pinctrl-names = "default"; + pinctrl-0 = <&usb3_id>; + }; + clkin_gmac: external-gmac-clock { compatible = "fixed-clock"; clock-frequency = <125000000>; @@ -422,6 +429,13 @@ <4 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>; }; }; + + usb3 { + usb3_id: usb3-id { + rockchip,pins = + <1 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; };
&sdhci {