[RFC PATCH 4/4] ARM: dts: vf-colibri: USB device/host switch using extcon gpio

[Sanchayan Maity]

Use USBC_DET feature of standard Colibri SODIMM pin 137 for USB
device/host switching using the generic extcon USB gpio implementation.

Signed-off-by: Sanchayan Maity <maitysancha...@gmail.com>
---
 arch/arm/boot/dts/vf-colibri-eval-v3.dtsi | 12 ++++++++++++
 arch/arm/boot/dts/vf-colibri.dtsi         |  7 +++++++
 2 files changed, 19 insertions(+)

diff --git a/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi 
b/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi
index 4d8b7f6..794c02e 100644
--- a/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi
+++ b/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi
@@ -50,6 +50,14 @@
                clock-frequency = <16000000>;
        };
 
+       extcon_usbc_det: usbc_det {
+               compatible = "linux,extcon-usb-gpio";
+               debounce = <25>;
+               id-gpio = <&gpio3 6 GPIO_ACTIVE_HIGH>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_usbc_det>;
+       };
+
        reg_3v3: regulator-3v3 {
                compatible = "regulator-fixed";
                regulator-name = "3.3V";
@@ -146,6 +154,10 @@
        status = "okay";
 };
 
+&usbdev0 {
+       extcon = <&extcon_usbc_det>, <&extcon_usbc_det>;
+};
+
 &usbh1 {
        vbus-supply = <&reg_usbh_vbus>;
 };
diff --git a/arch/arm/boot/dts/vf-colibri.dtsi 
b/arch/arm/boot/dts/vf-colibri.dtsi
index fda7f28..551b6a1 100644
--- a/arch/arm/boot/dts/vf-colibri.dtsi
+++ b/arch/arm/boot/dts/vf-colibri.dtsi
@@ -171,6 +171,7 @@
 
 &usbdev0 {
        disable-over-current;
+       dr_mode = "otg";
        status = "okay";
 };
 
@@ -326,6 +327,12 @@
                        >;
                };
 
+               pinctrl_usbc_det: gpio_usbc_det {
+                       fsl,pins = <
+                               VF610_PAD_PTC29__GPIO_102               0x22ed
+                       >;
+               };
+
                pinctrl_usbh1_reg: gpio_usb_vbus {
                        fsl,pins = <
                                VF610_PAD_PTD4__GPIO_83                 0x22ed
-- 
2.7.3