Add full description of USB-MUIC and MUIC-MHL connections, along with
proper USB connector and OTG mode for DWC2 USB controller.

This fixes dtc W=1 warnings:

  Warning (graph_child_address): /i2c-mhl/hdmi-bridge@39/ports: graph node has 
single child node 'port@0', #address-cells/#size-cells are not necessary

Cc: Marek Szyprowski <m.szyprow...@samsung.com>
Cc: replicant@osuosl.org
Cc: phone-de...@vger.kernel.org
Cc: ~postmarketos/upstream...@lists.sr.ht
Cc: Martin J├╝cker <martin.juec...@gmail.com>
Cc: Henrik Grimler <hen...@grimler.se>
Cc: Artur Weber <aweber.ker...@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlow...@linaro.org>

---

Not tested on hardware. Please kindly check if peripheral mode is not
broken. Or maybe OTG started to work?
---
 .../boot/dts/samsung/exynos4412-midas.dtsi    | 46 ++++++++++++++++++-
 1 file changed, 45 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/samsung/exynos4412-midas.dtsi 
b/arch/arm/boot/dts/samsung/exynos4412-midas.dtsi
index 57836d5554d0..6057f9d9811e 100644
--- a/arch/arm/boot/dts/samsung/exynos4412-midas.dtsi
+++ b/arch/arm/boot/dts/samsung/exynos4412-midas.dtsi
@@ -182,6 +182,34 @@ pmic@66 {
                        pinctrl-0 = <&max77693_irq>;
                        reg = <0x66>;
 
+                       connector {
+                               compatible = "samsung,usb-connector-11pin",
+                                            "usb-b-connector";
+                               label = "micro-USB";
+                               type = "micro";
+
+                               ports {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+
+                                       port@0 {
+                                               reg = <0>;
+
+                                               muic_to_usb: endpoint {
+                                                       remote-endpoint = 
<&usb_to_muic>;
+                                               };
+                                       };
+
+                                       port@3 {
+                                               reg = <3>;
+
+                                               muic_to_mhl: endpoint {
+                                                       remote-endpoint = 
<&mhl_to_muic>;
+                                               };
+                                       };
+                               };
+                       };
+
                        regulators {
                                esafeout1_reg: ESAFEOUT1 {
                                        regulator-name = "ESAFEOUT1";
@@ -287,6 +315,14 @@ mhl_to_hdmi: endpoint {
                                                remote-endpoint = 
<&hdmi_to_mhl>;
                                        };
                                };
+
+                               port@1 {
+                                       reg = <1>;
+
+                                       mhl_to_muic: endpoint {
+                                               remote-endpoint = 
<&muic_to_mhl>;
+                                       };
+                               };
                        };
                };
        };
@@ -545,8 +581,16 @@ hdmi_to_mhl: endpoint {
 &hsotg {
        vusb_d-supply = <&ldo15_reg>;
        vusb_a-supply = <&ldo12_reg>;
-       dr_mode = "peripheral";
+       dr_mode = "otg";
+       role-switch-default-mode = "peripheral";
+       usb-role-switch;
        status = "okay";
+
+       port {
+               usb_to_muic: endpoint {
+                       remote-endpoint = <&muic_to_usb>;
+               };
+       };
 };
 
 &i2c_0 {
-- 
2.34.1

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