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arm64: dts: ti: k3-am68-sk: Enable DSI on DisplayPort-0

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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

Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
Tested-by: Harikrishna Shenoy <h-shenoy@ti.com>
Reviewed-by: Harikrishna Shenoy <h-shenoy@ti.com>
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
Link: https://lore.kernel.org/r/20250716060114.52122-8-j-choudhary@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>
This commit is contained in:
Jayesh Choudhary
2025-07-16 11:31:14 +05:30
committed by Nishanth Menon
parent 2bca9f6922
commit 11b9e4517b
1 changed files with 97 additions and 0 deletions
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97
arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
View File

@@ -135,6 +135,34 @@ transceiver4: can-phy3 {
max-bitrate = <5000000>;
};
edp0_refclk: clock-edp0-refclk {
compatible = "fixed-clock";
clock-frequency = <19200000>;
#clock-cells = <0>;
};
dp0_pwr_3v3: regulator-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;
};
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";
@@ -615,6 +643,39 @@ exp2: gpio@20 {
gpio-line-names = "HDMI_PDn","HDMI_LS_OE",
"DP0_3V3_EN","eDP_ENABLE";
};
bridge_dsi_edp: bridge-dsi-edp@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 {
@@ -711,6 +772,15 @@ dpi_out0: endpoint {
remote-endpoint = <&tfp410_in>;
};
};
/* DSI */
port@2 {
reg = <2>;
dpi0_out: endpoint {
remote-endpoint = <&dsi0_in>;
};
};
};
&serdes_ln_ctrl {
@@ -768,3 +838,30 @@ &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>;
};
};
};