arm64: dts: ti: k3-j721e-common-proc-board: add DP to j7 evm

Add the endpoint nodes to describe connection from
DSS => MHDP => DisplayPort connector.
Also add the required pinmux nodes for hotplug.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Rahul T R <r-ravikumar@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Aradhya Bhatia <a-bhatia1@ti.com>
Link: https://lore.kernel.org/r/20220429112639.13004-3-r-ravikumar@ti.com

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index 2f119e9..2bc26a2 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -148,6 +148,28 @@
                pinctrl-0 = <&main_mcan2_gpio_pins_default>;
                standby-gpios = <&main_gpio0 127 GPIO_ACTIVE_HIGH>;
        };
+
+       dp_pwr_3v3: regulator-dp-pwr {
+               compatible = "regulator-fixed";
+               regulator-name = "dp-pwr";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               gpio = <&exp4 0 GPIO_ACTIVE_HIGH>; /* P0 - DP0_PWR_SW_EN */
+               enable-active-high;
+       };
+
+       dp0: connector {
+               compatible = "dp-connector";
+               label = "DP0";
+               type = "full-size";
+               dp-pwr-supply = <&dp_pwr_3v3>;
+
+               port {
+                       dp_connector_in: endpoint {
+                               remote-endpoint = <&dp0_out>;
+                       };
+               };
+       };
 };
 
 &main_pmx0 {
@@ -190,6 +212,12 @@
                >;
        };
 
+       dp0_pins_default: dp0-pins-default {
+               pinctrl-single,pins = <
+                       J721E_IOPAD(0x1c4, PIN_INPUT, 5) /* SPI0_CS1.DP0_HPD */
+               >;
+       };
+
        main_i2c1_exp4_pins_default: main-i2c1-exp4-pins-default {
                pinctrl-single,pins = <
                        J721E_IOPAD(0x230, PIN_INPUT, 7) /* (U2) ECAP0_IN_APWM_OUT.GPIO1_11 */
@@ -658,6 +686,33 @@
                                 <&k3_clks 152 18>;     /* PLL23_HSDIV0 */
 };
 
+&dss_ports {
+       port {
+               dpi0_out: endpoint {
+                       remote-endpoint = <&dp0_in>;
+               };
+       };
+};
+
+&dp0_ports {
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       port@0 {
+               reg = <0>;
+               dp0_in: endpoint {
+                       remote-endpoint = <&dpi0_out>;
+               };
+       };
+
+       port@4 {
+               reg = <4>;
+               dp0_out: endpoint {
+                       remote-endpoint = <&dp_connector_in>;
+               };
+       };
+};
+
 &mcasp0 {
        status = "disabled";
 };
@@ -807,6 +862,8 @@
 &mhdp {
        phys = <&torrent_phy_dp>;
        phy-names = "dpphy";
+       pinctrl-names = "default";
+       pinctrl-0 = <&dp0_pins_default>;
 };
 
 &pcie0_rc {
@@ -859,10 +916,6 @@
        status = "disabled";
 };
 
-&dss {
-       status = "disabled";
-};
-
 &icssg0_mdio {
        status = "disabled";
 };