From: Rahul T R <r-ravikumar@xxxxxx>
Add the endpoint nodes to describe connection from
DSS => MHDP => DisplayPort connector.
Also add the required nodes gpio expander 4 and pinmux
for main_i2c4 which is required for controlling DP Power
and set status of all the required nodes for DP0 as
okay
Signed-off-by: Rahul T R <r-ravikumar@xxxxxx>
Signed-off-by: Jayesh Choudhary <j-choudhary@xxxxxx>
---
arch/arm64/boot/dts/ti/k3-j784s4-evm.dts | 77 ++++++++++++++++++++++++
1 file changed, 77 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
index 2b414fd973d0..03c9bf34cb1b 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
@@ -102,6 +102,28 @@ vdd_sd_dv: regulator-TLV71033 {
states = <1800000 0x0>,
<3300000 0x1>;
};
+
+ dp0_pwr_3v3: regulator-dp0-prw {
+ compatible = "regulator-fixed";
+ regulator-name = "dp0-pwr";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&exp4 0 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ dp0: dp0-connector {
+ compatible = "dp-connector";
+ label = "DP0";
+ type = "full-size";
+ dp-pwr-supply = <&dp0_pwr_3v3>;
+
+ port {
+ dp0_connector_in: endpoint {
+ remote-endpoint = <&dp0_out>;
+ };
+ };
+ };
};
&main_pmx0 {
@@ -169,6 +191,13 @@ dp0_pins_default: dp0-pins-default {
J784S4_IOPAD(0x0cc, PIN_INPUT, 12) /* (AM37) SPI0_CS0.DP0_HPD */
>;
};
+
+ main_i2c4_pins_default: main-i2c4-pins-default {
+ pinctrl-single,pins = <
+ J784S4_IOPAD(0x014, PIN_INPUT_PULLUP, 8) /* (AG33) MCAN14_TX.I2C4_SCL */
+ J784S4_IOPAD(0x010, PIN_INPUT_PULLUP, 8) /* (AH33) MCAN13_RX.I2C4_SDA */
+ >;
+ };
};
&wkup_pmx0 {
@@ -313,6 +342,7 @@ &serdes_refclk {
};
&dss {
+ status = "okay";
assigned-clocks = <&k3_clks 218 2>,
<&k3_clks 218 5>,
<&k3_clks 218 14>,
@@ -323,7 +353,12 @@ &dss {
<&k3_clks 218 22>;
};
+&serdes_wiz4 {
+ status = "okay";
+};
+
&serdes4 {
+ status = "okay";
serdes4_dp_link: phy@0 {
reg = <0>;
cdns,num-lanes = <4>;
@@ -335,8 +370,50 @@ serdes4_dp_link: phy@0 {
};
&mhdp {
+ status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&dp0_pins_default>;
phys = <&serdes4_dp_link>;
phy-names = "dpphy";
};
+
+&dss_ports {
+ port {
+ dpi0_out: endpoint {
+ remote-endpoint = <&dp0_in>;
+ };
+ };
+};
+
+&main_i2c4 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_i2c4_pins_default>;
+ clock-frequency = <400000>;
+
+ exp4: gpio@20 {
+ compatible = "ti,tca6408";
+ reg = <0x20>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+};
+
+&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 = <&dp0_connector_in>;
+ };
+ };
+};
--
2.25.1
