Commit 0da6b5d6 authored by Rahul T R's avatar Rahul T R Committed by Vignesh Raghavendra
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arm64: dts: ti: k3-j784s4-evm: Enable DisplayPort-0 



Enable display for J784S4 EVM.

Add assigned clocks for DSS, DT node for DisplayPort PHY and pinmux for
DP HPD. Add the clock frequency for serdes_refclk.

Add the endpoint nodes to describe connection from:
DSS => MHDP => DisplayPort connector.

Also add the GPIO expander-4 node and pinmux for main_i2c4 which is
required for controlling DP power. Set status for all required nodes
for DP-0 as "okay".

Signed-off-by: default avatarRahul T R <r-ravikumar@ti.com>
[j-choudhary@ti.com: move all the changes together to enable DP-0 in EVM]
Signed-off-by: default avatarJayesh Choudhary <j-choudhary@ti.com>
Reviewed-by: default avatarAradhya Bhatia <a-bhatia1@ti.com>
Reviewed-by: default avatarRoger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20231019054022.175163-5-j-choudhary@ti.com


Signed-off-by: default avatarVignesh Raghavendra <vigneshr@ti.com>
parent 603669b1

arch/arm64/boot/dts/ti/k3-j784s4-evm.dts

+117 −0
Original line number Diff line number Diff line
@@ -249,6 +249,28 @@ 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: connector-dp0 {

		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 {
@@ -289,6 +311,19 @@ vdd_sd_dv_pins_default: vdd-sd-dv-default-pins { 
			J784S4_IOPAD(0x020, PIN_INPUT, 7) /* (AJ35) MCAN15_RX.GPIO0_8 */

		>;

	};



	dp0_pins_default: dp0-default-pins {

		pinctrl-single,pins = <

			J784S4_IOPAD(0x0cc, PIN_INPUT, 12) /* (AM37) SPI0_CS0.DP0_HPD */

		>;

	};



	main_i2c4_pins_default: main-i2c4-default-pins {

		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_pmx2 {
@@ -862,3 +897,85 @@ adc { 
		ti,adc-channels = <0 1 2 3 4 5 6 7>;

	};

};



&serdes_refclk {

	status = "okay";

	clock-frequency = <100000000>;

};



&dss {

	status = "okay";

	assigned-clocks = <&k3_clks 218 2>,

			  <&k3_clks 218 5>,

			  <&k3_clks 218 14>,

			  <&k3_clks 218 18>;

	assigned-clock-parents = <&k3_clks 218 3>,

				 <&k3_clks 218 7>,

				 <&k3_clks 218 16>,

				 <&k3_clks 218 22>;

};



&serdes_wiz4 {

	status = "okay";

};



&serdes4 {

	status = "okay";

	serdes4_dp_link: phy@0 {

		reg = <0>;

		cdns,num-lanes = <4>;

		#phy-cells = <0>;

		cdns,phy-type = <PHY_TYPE_DP>;

		resets = <&serdes_wiz4 1>, <&serdes_wiz4 2>,

			 <&serdes_wiz4 3>, <&serdes_wiz4 4>;

	};

};



&mhdp {

	status = "okay";

	pinctrl-names = "default";

	pinctrl-0 = <&dp0_pins_default>;

	phys = <&serdes4_dp_link>;

	phy-names = "dpphy";

};



&dss_ports {

	/* DP */

	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 {

	port@0 {

		reg = <0>;



		dp0_in: endpoint {

			remote-endpoint = <&dpi0_out>;

		};

	};



	port@4 {

		reg = <4>;



		dp0_out: endpoint {

			remote-endpoint = <&dp0_connector_in>;

		};

	};

};