diff mbox series

[7/7] arm64: dts: ti: k3-am68-sk: Enable DSI on DisplayPort-0

Message ID 20250411105155.303657-8-j-choudhary@ti.com (mailing list archive)
State New
Headers show
Series Add DSI display support for TI's Jacinto platforms | expand

Commit Message

Jayesh Choudhary April 11, 2025, 10:51 a.m. UTC 
Enable DSI support for AM68-SK platform.

Add DT node for DSI2eDP bridge. The DSI to eDP bridge is sn65dsi86
on the board.

Add the endpoint nodes to describe connection from:
DSS => DSI => SN65DSI86 bridge => DisplayPort-0

Set status for all required nodes for DisplayPort-0 as 'okay'.

Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
---
 .../boot/dts/ti/k3-am68-sk-base-board.dts     | 96 +++++++++++++++++++
 1 file changed, 96 insertions(+)

Comments

Kumar, Udit April 19, 2025, 9:34 a.m. UTC | #1 
On 4/11/2025 4:21 PM, Jayesh Choudhary wrote:
> Enable DSI support for AM68-SK platform.
>
> Add DT node for DSI2eDP bridge. The DSI to eDP bridge is sn65dsi86
> on the board.
>
> Add the endpoint nodes to describe connection from:
> DSS => DSI => SN65DSI86 bridge => DisplayPort-0
>
> Set status for all required nodes for DisplayPort-0 as 'okay'.
>
> Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
> ---
>   .../boot/dts/ti/k3-am68-sk-base-board.dts     | 96 +++++++++++++++++++
>   1 file changed, 96 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
> index 11522b36e0ce..df54de2d8236 100644
> --- a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
> @@ -124,6 +124,35 @@ transceiver4: can-phy3 {
>   		max-bitrate = <5000000>;
>   	};
>   
> +	edp0_refclk: clock-edp0-refclk {
> +		#clock-cells = <0>;
> +		compatible = "fixed-clock";
> +		clock-frequency = <19200000>;
> +	};

I assume on this board and through out series, display is DP not eDP.

do you see possibility to change wording from eDP to DP


> +
> +	dp0_pwr_3v3: fixedregulator-dp0-pwr {
> +		compatible = "regulator-fixed";
> +		regulator-name = "dp0-pwr";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		gpio = <&exp2 2 GPIO_ACTIVE_HIGH>;     /*P0 - DP0_3V3 _EN */
> +		enable-active-high;
> +		regulator-always-on;
> +	};
> +
> [..]
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
index 11522b36e0ce..df54de2d8236 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
@@ -124,6 +124,35 @@  transceiver4: can-phy3 {
 		max-bitrate = <5000000>;
 	};
 
+	edp0_refclk: clock-edp0-refclk {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <19200000>;
+	};
+
+	dp0_pwr_3v3: fixedregulator-dp0-pwr {
+		compatible = "regulator-fixed";
+		regulator-name = "dp0-pwr";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&exp2 2 GPIO_ACTIVE_HIGH>;     /*P0 - DP0_3V3 _EN */
+		enable-active-high;
+		regulator-always-on;
+	};
+
+	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>;
+			};
+		};
+	};
+
 	connector-hdmi {
 		compatible = "hdmi-connector";
 		label = "hdmi";
@@ -594,6 +623,39 @@  exp2: gpio@20 {
 		gpio-line-names = "HDMI_PDn","HDMI_LS_OE",
 				  "DP0_3V3_EN","eDP_ENABLE";
 	};
+
+	dsi_edp_bridge: dsi-edp-bridge@2c {
+		compatible = "ti,sn65dsi86";
+		reg = <0x2c>;
+		clock-names = "refclk";
+		clocks = <&edp0_refclk>;
+		enable-gpios = <&exp2 3 GPIO_ACTIVE_HIGH>;
+		vpll-supply = <&vsys_io_1v8>;
+		vccio-supply = <&vsys_io_1v8>;
+		vcca-supply = <&vsys_io_1v2>;
+		vcc-supply = <&vsys_io_1v2>;
+
+		dsi_edp_bridge_ports: ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				dp0_in: endpoint {
+					remote-endpoint = <&dsi0_out>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				dp0_out: endpoint {
+					remote-endpoint = <&dp0_connector_in>;
+				};
+			};
+		};
+	};
 };
 
 &main_sdhci1 {
@@ -688,6 +750,15 @@  dpi_out0: endpoint {
 			remote-endpoint = <&tfp410_in>;
 		};
 	};
+
+	/* DSI */
+	port@2 {
+		reg = <2>;
+
+		dpi0_out: endpoint {
+			remote-endpoint = <&dsi0_in>;
+		};
+	};
 };
 
 &serdes_ln_ctrl {
@@ -745,3 +816,28 @@  &usb0 {
 	phys = <&serdes0_usb_link>;
 	phy-names = "cdns3,usb3-phy";
 };
+
+&dphy_tx0 {
+	status = "okay";
+};
+
+&dsi0 {
+	status = "okay";
+};
+
+&dsi0_ports {
+
+	port@0 {
+		reg = <0>;
+		dsi0_out: endpoint {
+			remote-endpoint = <&dp0_in>;
+		};
+	};
+
+	port@1 {
+		reg = <1>;
+		dsi0_in: endpoint {
+			remote-endpoint = <&dpi0_out>;
+		};
+	};
+};